Re: [Elecraft] Chinese wages

[Johnny Siu via Elecraft]

 Hello Patrick,
In the past, Chinese wages were really low so that the total costs of wages + 
hidden costs were still commercial viable.  Now, the story is totally different 
and you have to be worried about quality control and intellectual rights issues.
I am in Hong Kong and have seen the changes but it is far too sensitive to 
discuss openly here.  If you are aware of the news of Hong Kong, our young 
generation has been fighting hard in the past 9 months.
73
Johnny VR2XMC
PATRICK HICKS () 在 2020年5月4日星期一 上午07:27:13 [GMT+8] 
寫道：  
 
 As a ship's chief engineer I ran to Asia from the west coast for many years 
(30+). In the 60's it was true that the Chinese people made very poor wages but 
not so any more. It was also true that many of the products were marginal. In 
the years before I retired, my company shipyarded their vessels in China. Their 
steel work and production was first rate and fast; much faster than in the US. 
BUT to be fair, the US yards were full of military vessels. Remember also that 
the cost of living in China is very much lower than here and their living and 
social structure are much different. Apples to oranges...

73
PJH, N7PH
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Re: [Elecraft] Clarification on Repair Process

[Johnny Siu via Elecraft]

 Hello Lee,
From Hong Kong's experience, please wear masks whenever practicable.
The idea of 'only the sick should wear masks' is totally wrong because there 
are many invisible victims of Wuhan virus.  For some victims, they have no 
symptoms, they don't even know they were infected.  However, they are spreading 
the virus like a zombie.

Hong Kong learnt our painful experience in 2003 and we find our ways to survive.
Be safe and healthy.
73
Johnny VR2XMC

Leroy Buller () 在 2020年3月20日星期五 上午02:41:52 [GMT+8] 
寫道：  
 
 My beloved K3 is in Watsonville for repair.  Now, I can wait, but just
curious as to how Elecraft will be dealing with repairs in light of the
folderol going on in our country.  Don't  get me wrong, I want everyone
health, wealthy and on CW...but curious how repairs are being handled.

Be safe.  Wash your hands.  Practice social distancing.  Take vitamins. Be
aware of your Toilet Paper levels.  Make sure your blinker fluid is topped
off.

K0WA
Lee
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[Elecraft] off topic - VR2's experience in COVID-19

[Johnny Siu via Elecraft]

Dear OM,
It is off-topic, you can press 'delete' now.
VR2 is densely populated with over 7 million people.  We are also close to 
Mainland China.  Our government is so stupid that she did not greatly reduce 
the number of Mainland Chinese from entering Hong Kong at the beginning.
Having said that, VR2 is still able to maintain a relatively low number of 
COVID-19 victims.  Here are what we have done:
1.  Over 95% of our population wearing surgical mask whenever practicable;2.  
We try to avoid social gathering as much as we can;3. We wash our hands 
frequently before touch our noses and eyes.
I worked in US and UK in the past and know many of you just think that only the 
sick man will wear mask.  VR2 people do not think so. We learnt from painful 
experience from 2003 SARS and now did the above 3 items.
We did not rely on our government but we do what we learnt from the past.
Hope this piece of experience helpful to you and thank you for the band-width 
here.
73
Johnny VR@XMC 
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[Elecraft] Off topic - please delete it right now, if you don't like

[Johnny Siu via Elecraft]

Dear Group,
Recently, you may learn from the media and press.  Last Sunday 9 June, about 
1.03 million Hong Kong people were on the street to protest again a new 
legislation.  Demonstration in Central Business District was also carried out 
yesterday to protest but quickly suppressed by local police force using 
unnecessary violence.
If you are interested in knowing more about the above, please email me direct 
off-the-list.
Thanks for the band-width here.  Please accept my apologies for any 
inconvenience / QRM caused.
73
Johnny VR2XMC
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[Elecraft] Time flies

[Johnny Siu via Elecraft]

Hello Group,
Time flies, I have been absent from the air for some time.  Recently, I tried 
to contact Lisa of elecraft to order some small items as my son will soon 
travel to NYC.
I was given to know that Lisa had already retired and her successor is now 
Margaret.
I just wonder whether my favorite support advisers Gary and Howard are still 
with elecraft.
73
Johnny VR2XMC
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[Elecraft] KX2 and SCS Pactor Modem Setup

[Johnny Siu via Elecraft]

I want to know the answer as well.  I once emailed SCS about the same subject 
for my KX3 but their answer is simply - don't know, never tried, don't support 

Perhaps, SCS is mainly targeting the marine market.
73
Johnny VR2XMC

  寄件人︰ Mitch Apintiloaiei 
 收件人︰ elecraft@mailman.qth.net 
 傳送日期︰ 2018年04月12日 (週四) 8:31 AM
 主題︰ [Elecraft] KX2 and SCS Pactor Modem Setup
   
Hello,

This is my first post. I'm trying to connect an SCS 7400 modem with my KX2.
Got the RMS Express installed, and it's going through the steps without
success. I suspect my KX2 setup is not right. Does anybody here know what
the exact settings for the KX2 are? I don't seam to be able to find any
info by Google.

Really appreciate any help you guys might be able to provide.

73-Mitch
km4eku



   
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[Elecraft] OT - Callsign Prefix VR20

[Johnny Siu via Elecraft]

Dear Elecrafters,
To celebrate the 20th anniversary of the establishment of the Hong Kong SAR, 
hams in Hong Kong are permitted to use VR20 as call sign prefix from 1 Jul 2017 
to 30 June 2018.
Therefore, in the coming IARU contest, you may hear some VR20 stations.
73
Johnny VR2XMC / VR20XMC
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[Elecraft] KX2 Heatsink

[Johnny Siu via Elecraft]

Yes, I was also one of those being banned from KX3 yahoo group because I 
mentioned competitive products. Any way no regret on my part and I will adhere 
to this official mailing listing.
73
Johnny VR2XMC

  寄件人︰ pkhjr via Elecraft 
 收件人︰ elecraft@mailman.qth.net 
 傳送日期︰ 2017年05月15日 (週一) 8:54 PM
 主題︰ Re: [Elecraft] KX2 Heatsink
   
For those of you who don't Howard Hoyt  aka Howie - WA4PSC is the moderator
for the KX3/KX2 Yahoo group and is the owner of Pro Audio Engineering which
markets products for Elecraft KX products. 

Several years ago when heatsinks for the KX3 were just becoming an item I
made the greviouis mistake of commenting on the KX3 Yahoo group that I had
bought a heatsink from a guy in 8 land and it was good quality and about a
third of the price.  I was immediately banned from the Yahoo group by Howie. 
There were many other people banned for mentioning anything that competed
with Pro Audio.

Emails to Howie with my mea culpas were never answered.  

If Eric and Wayne ran this forum as you run the Yahoo KX3 Group you would
have been banned a long time ago.  I apologize for the rant but I feel
betterLOL

Tex
ka5y



--
View this message in context: 
http://elecraft.365791.n2.nabble.com/KX2-Heatsink-tp7630625p7630636.html
Sent from the Elecraft mailing list archive at Nabble.com.
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[Elecraft] KX2 Heatsink

[Johnny Siu via Elecraft]

The original request for aftermarket heat link was from earlier production of 
KX3.  My KX3 was an early production.  I plainly put up heat sink issue in this 
mailing list that the early KX3 only has thin piece of metal as heat sink which 
simply did not meet the specifications published by Elecraft.
Eventually, Elecraft did respond and now newer production comes with KX3HSMDKT

I believe Elecraft learnt this lesson and the heat sink in KX2 will meet the 
published operating specifications.  For pro-long full duty cycle digital 
operation at 10W, KX2 is simply not designed for that usage hence the stock 
heat sink.
Heat sink problem also exists in the Elecraft transverters, while the max 
output is 20W, it cannot sustain 10W FM causal operation (i.e. too hot)
73
Johnny VR2XMC  寄件人︰ Howard Hoyt 
 收件人︰ elecraft@mailman.qth.net; elecraft-requ...@mailman.qth.net 
 傳送日期︰ 2017年05月15日 (週一) 5:19 AM
 主題︰ [Elecraft] KX2 Heatsink
   
Hi Kev,

The issue is related to the fact that Elecraft, as do virtually all 
amateur radio manufacturers rate power output with 50% duty cycle SSB/CW 
modes only.  As is stated in the KX3 specifications and here copied from 
the KX2 manual:

/"80-17 meters, 10 W PEP max (+/- 1 dB); 12 and 10 meters, 8 W PEP max 
(+/- 1 dB).//
//Recommended transmit duty cycle: 50%, all modes. (If power amplifier 
temperature or//
//current drain is too high, power will automatically be reduced.)//
//NOTE: When using over 5 W in SSB, DATA-A and AFSK-A modes, the//
//recommended supply voltage is 12 V or higher to minimize transmit 
intermodulation//
//products. Higher power with lower voltages should be used only when 
necessary."/

I believe many or most of the requests we have had to make an 
aftermarket heatsink have come from hams using these rigs in digital 
modes such as JT and desire full-power operation, which Elecraft does 
not explicitly endorse, but which is possible with additional cooling.  
Elecraft designs and specifies operation of their rigs very 
conservatively compared to many other manufacturers, and the KX2 and KX3 
specifications are spot on.
Also as is stated in the specification, the KX2 internal battery, at 
10-11V depending on state of charge is considered adequate for 5W or 
less, and we have supplied many Kx33 14V supplies to KX2 owners who want 
to use the rig at 10W power when AC power is available.

I conclude many of these KX2 rigs are being used in digital modes from 
fixed location AC power, not from batteries.  I can't blame the hams who 
do this, the KX2 is a fantastically full-featured rig for fixed 
operation, I have used it at home to check into local 10M SSB nets 
driving a KPA500 and no one was the wiser compared to my K3.

Cheers,
Howie - WA4PSC


On 5/14/2017 4:01 PM, elecraft-requ...@mailman.qth.net wrote:

>>It seems odd to me that an issue like this would go unmentioned
>> and unaddressed by Elecraft.
>>
>>73,
>>Kev K4VD

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[Elecraft] Elecraft Equipment chat group

[Johnny Siu via Elecraft]

Count me out as well.  I just stick to this forum. 

  寄件人︰ Wes Stewart 
 收件人︰ elecraft@mailman.qth.net 
 傳送日期︰ 2017年05月1日 (週一) 8:47 PM
 主題︰ Re: [Elecraft] Elecraft Equipment chat group
   
Count me out.

On 5/1/2017 5:05 AM, Michael Walker wrote:
> How many of you would be interested?
>

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[Elecraft] OT: 60m band in Hong Kong

[Johnny Siu via Elecraft]

Dear Elecrafters,
In the past, I asked questions about 60m band in USA.  Local telecommunication 
authority in Hong Kong has now allocated 5351.5-5366.5kHz to amateur radio 
service on a secondary basis.  The maximum EIP is 15 Watt.
Thanks for all your help in the past.
73
Johnny VR2XMC
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[Elecraft] KIO3 - surplus for requirement - for sale

[Johnny Siu via Elecraft]

Just to give an estimation.  The cost to US and major cities are USD50 sent by 
registered airmail.  For south america, the cost will be slightly increased to 
USD60.
73
Johnny VR2XMC
  寄件人︰ Johnny Siu 
 收件人︰ Elecraft Reflector  
副本(CC)︰ Elecraft K3 
 傳送日期︰ 2017年02月6日 (週一) 9:10 AM
 主題︰ KIO3 - surplus for requirement
   
Hello Group,
I now have a KIO3 surplus to my requirement.  Depending on shipping location, 
all I needed is simply some costs to cover airmail postage, packing and 
handling.
If you are interested, please reply off-the-list to vr2xmc at yahoo dot com dot 
hk.
73
Johnny VR2XMC

   
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[Elecraft] KIO3 - surplus for requirement

[Johnny Siu via Elecraft]

Hello Group,
I now have a KIO3 surplus to my requirement.  Depending on shipping location, 
all I needed is simply some costs to cover airmail postage, packing and 
handling.
If you are interested, please reply off-the-list to vr2xmc at yahoo dot com dot 
hk.
73
Johnny VR2XMC
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[Elecraft] OT: a short presentation to a group of primary school children about radio

[Johnny Siu via Elecraft]

Hello Elecrafters,
It is off-topic and please press delete if you don't want to read.
I am going to give a short presentation to a group of primary school children 
(age below 12) about the application of radio / wireless in our daily life.  I 
would like to take this chance to give them some introduction of amateur radio.
If any of you have done similar talk before, would you mind sharing with me 
your presentation materials?  Your copy right is duly observed and I will 
acknowledge the source of materials.
On the other hand, if you consider there are interesting materials in you tube, 
please share me the weblink.
Any assistance will be appreciated.  Could you please reply off-the-list?
Thanks & 73
Johnny VR2XMC
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[Elecraft] Elecraft Support

[Johnny Siu via Elecraft]

Don and all,
Yes, I have been contacting Gary for more than a decade for various elecraft 
support matters.  My first contact with him was for my K2# 14xx.
He and other support staff from Elecraft do give a personal touch and I can 
feel their enthusiasm.
One of my main reason to stay with Elecraft is their support services. Product 
support is important to me because I am outside USA.
73
Johnny VR2XMC

  寄件人︰ Don Wilhelm 
 收件人︰ elecraft@mailman.qth.net 
 傳送日期︰ 2017年01月8日 (週日) 7:15 AM
 主題︰ Re: [Elecraft] Elecraft Support
   
Jim and all,

Yes, I remember those "good old days" when the only Elecraft support 
person was Gary (I was one of the K2 Field Testers).  Unfortunately as 
the Elecraft product line grew, the number of support persons has grown 
too - it now numbers 4 - David, Craig, Howard and Gary, and the Monday 
morning support email load is large.
Problems that the support staff cannot handle are still passed along to 
the engineers, but that may be in the background while the support 
people handle the major communications back to the customer.

Yes, I am close to the Elecraft team (particularly the support and sales 
folks), and do most of the repairs on the K2 and other "thru-hole" kits 
in the Elecraft line.  So I am quite familiar with that part of their 
operation as well as their problems.  Personal phone numbers are no 
longer given out (protections for the employees except in extreme 
cases), but you will still receive personalized customer support service 
via email or they will often phone customers with problems.

I do serve as support for those "Thru-hole" products when Gary is not 
available, and I can say for myself that (from me) you will receive 
extended personal support when required - yes even help with a lifted 
solder pad.
I am in North Carolina, and am in a different time zone than Elecraft, 
but that makes little difference,  we still communicate with each other 
and the customers when the need arises.

73,
Don W3FPR


   
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[Elecraft] operating HF / KX3 in a Tesla Model S

[Johnny Siu via Elecraft]

Hello Lyle, Jim and Ignacy and others,
Thanks for all your valuable advice.
Hong Kong is small and good for Electric Vehicles.   The population of EV has 
increased from 100 to now around 7000 in 5 years time.  Regrettably, 
installation of chargers at condominium car parks is still a uphill battle.
In fact, in terms of number of EV per km of roads, Hong Kong is the highest 
among the Asia Pacific.
73
Johnny VR2XMC

  寄件人︰ Lyle Johnson 
 收件人︰ elecraft@mailman.qth.net 
 傳送日期︰ 2016年10月19日 (週三) 11:41 PM
 主題︰ Re: [Elecraft] operating HF / KX3 in a Tesla Model S
   
Hello Johnny!

You may need some filtering on the 12V power connector in the center 
console of the Model S.  The 12V battery is also quite small in the 
vehicle.  I'd be inclined to package an LiFePO4 battery pack and a 
charger for it and place it in the center console area, powering the 
mobile rig from the LiFePO4 pack.  That will give you surge capacity for 
higher power should you desire it, probably make any necessary 12V noise 
filtering easier and limit the stress on the 12V system in the Model S.

For antenna mounting, you might consider adding a trail hitch adapter, 
and then mount the mobile antenna to that, using its bonding to prevent 
possible damage or modification to your vehicle.  In the U.S., such a 
hitch is made by Torklift (www.torkliftcentral.com then click through 
Ecohitch and Tesla Model S) and seels for under $400 plus shipping and 
installation. It is invisible when not in use.  I know a couple of Model 
S owners here in Tucson that have these hitches and are satisfied with 
their quality and durability.

73,

Lyle KK7P


On 10/19/16 7:45 AM, Johnny Siu via Elecraft wrote:
> Thanks Bill.  The fuse in the cigarette lighter is 15A.  I think only a 50 W 
> amplifier is workable.
> 73
> Johnny VR2XMC
>
>        寄件人︰ Bill Frantz 
>  收件人︰ Johnny Siu 
> 副本(CC)︰ Elecraft Reflector 
>  傳送日期︰ 2016年10月19日 (週三) 10:15 PM
>  主題︰ Re: [Elecraft] operating HF / KX3 in a Tesla Model S
>    
> On 10/19/16 at 9:02 PM, elecraft@mailman.qth.net (Johnny Siu via
> Elecraft) wrote:
>
>> I am thinking operating my KX3 in my Tesla and have some questions:
>> 1.  Is it ok to direct drain DC supply from the cigarette
>> lighter socket since there is no ignition system in the Tesla?
> You will be drawing less than 4 amps, so the lighter socket
> should work fine. If you decide to add the 100W amp, then
> running dedicated wires will probably be the correct choice. I
> would want to know more about the 12V supply in the Tesla before
> running them. Perhaps the car manual has some advice.
>
>
>> 2.  The body of Tesla is aluminium alloy (if I am correct.
>>  How can I ground a mobile whip to the car body?
> Grounding techniques should be the same as for steel. Do be
> aware of the corrosion issues when different metals are in
> contact. Aluminium corrodes easily, so having a sacrificial
> piece of metal to protect the car body may be a good idea.
> Perhaps a piece of aluminum bonded to the car body with copper
> or brass bonded to it. (My electro-chemistry is a bit rusty.)
> Then that piece of aluminum will corrode and can be easily
> replaced. Also think about the materials for any screws/bolts
> used for the bonding.
>
> 73 Bill AE6JV

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[Elecraft] operating HF / KX3 in a Tesla Model S

[Johnny Siu via Elecraft]

Thanks Bill.  The fuse in the cigarette lighter is 15A.  I think only a 50 W 
amplifier is workable.
73
Johnny VR2XMC

  寄件人︰ Bill Frantz 
 收件人︰ Johnny Siu  
副本(CC)︰ Elecraft Reflector 
 傳送日期︰ 2016年10月19日 (週三) 10:15 PM
 主題︰ Re: [Elecraft] operating HF / KX3 in a Tesla Model S
   
On 10/19/16 at 9:02 PM, elecraft@mailman.qth.net (Johnny Siu via 
Elecraft) wrote:

>I am thinking operating my KX3 in my Tesla and have some questions:
>1.  Is it ok to direct drain DC supply from the cigarette 
>lighter socket since there is no ignition system in the Tesla?

You will be drawing less than 4 amps, so the lighter socket 
should work fine. If you decide to add the 100W amp, then 
running dedicated wires will probably be the correct choice. I 
would want to know more about the 12V supply in the Tesla before 
running them. Perhaps the car manual has some advice.


>2.  The body of Tesla is aluminium alloy (if I am correct. 
> How can I ground a mobile whip to the car body?

Grounding techniques should be the same as for steel. Do be 
aware of the corrosion issues when different metals are in 
contact. Aluminium corrodes easily, so having a sacrificial 
piece of metal to protect the car body may be a good idea. 
Perhaps a piece of aluminum bonded to the car body with copper 
or brass bonded to it. (My electro-chemistry is a bit rusty.) 
Then that piece of aluminum will corrode and can be easily 
replaced. Also think about the materials for any screws/bolts 
used for the bonding.

73 Bill AE6JV

---
Bill Frantz        |"We used to quip that "password" is the most common
408-356-8506      | password. Now it's 'password1.' Who said 
users haven't
www.pwpconsult.com | learned anything about security?" -- Bruce Schneier


   
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[Elecraft] operating HF / KX3 in a Tesla Model S

[Johnny Siu via Elecraft]

Hello elecrafter,
I am thinking operating my KX3 in my Tesla and have some questions:
1.  Is it ok to direct drain DC supply from the cigarette lighter socket since 
there is no ignition system in the Tesla?
2.  The body of Tesla is aluminium alloy (if I am correct.  How can I ground a 
mobile whip to the car body?
Any advice is appreciated.
73
Johnny VR2XMC
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[Elecraft] Microphone

[Johnny Siu via Elecraft]

In fact, I find modern transceivers including K3 are very accommodating to 
microphones. Professional broadcasting microphone is simply over killed for ham 
purposes.  Sometimes, just a bit experiment, even with computer headset, you 
will get good results.
I sold all my Heil gears such as PR781.  I am now using CM500 and a few low 
cost mics.  I am not saying Heil is no good but too overkill for ham radio.
73
Johnny VR2XMC

  寄件人︰ Jim Brown 
 收件人︰ 
副本(CC)︰ elecraft@mailman.qth.net
 傳送日期︰ 2016年10月14日 (週五) 11:24 AM
 主題︰ Re: [Elecraft] Microphone
   
On Thu,10/13/2016 1:18 PM, Michael Wong wrote:
> I’m still more of an audio professional than an accomplished ham, so I’ll ask 
> while the thread is hot - why does ham gear use non-standard interconnects? 
> Why don't Elecraft and others move to 3-pin XLR?
Two very good reasons -- panel real estate and the lack of NEED for pro 
mics.  optimum SSB bandwidth for communications is 500 Hz - 3 kHz. All 
that low end does is suck TX power with no intelligibility gain.

Virtually any ubalanced electret capsule or dynamic mic works very well 
with ham gear and sounds great. There is no need for pro mics with ham 
gear, and they cost a lot more than commonly used ham mics that sound 
quite good. All you need to run the electret is bias, which is applied 
to the mic output, about 8V through about 6K. Neither value is critical. 
This is exactly what we do for the lav capsules that are used with 
wireless mics.

> Honestly, the bottom of my mic cabinet is probably overkill for ham, but the 
> fact I have to get (or make) a custom adapter for even my least expensive mic 
> irks me.

I was in the same position 12 years ago when I got back on the air, and 
made a simple adapter to use an RE16 because I didn't own a ham mic. I 
continued to use it (on an AKG boom stand) until W6XU found and promoted 
the CM500.

73, Jim K9YC


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[Elecraft] FS: P3 Panadaptor + P3SVGA video adaptor /FFT processor

[Johnny Siu via Elecraft]

Hello Elecrafters,
I am now downsizing my shack.  The above is available for sale at USD799 
including shipping by insured air parcel to major cities around the world.
I am the original owner, non -smoker. Excellent condition with manual. 

If you are interested or would like to see the photo, please contact me 
off-the-list at vr2xmc at yahoo dot com dot hk
73
Johnny VR2XMC
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[Elecraft] K3 DSP Old and New

[Johnny Siu via Elecraft]

Hello Doug,
If you are not going for a K3S, the update to newer D version is very 
worthwhile.  It gives great improvement in the audio (though I still consider 
the audio worse than my new generation Icom radio).
However, Elecraft mentioned in the past that the DSP board currently used in 
K3S would be offered to K3 user for upgrade.
I would wonder whether you would like to wait for the new K3S DSP board instead.
73
Johnny VR2XMC

  寄件人︰ Doug Millar via Elecraft 
 收件人︰ "elecraft@mailman.qth.net"  
 傳送日期︰ 2016年09月23日 (週五) 8:20 AM
 主題︰ [Elecraft] K3 DSP Old and New
   
I have an older 2009 K3 without the updated DSP. What is your opinion? Is it 
worth the upgrade to the newer D version? Anyone done a comparison? 
   Doug K6JEY
 
 
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[Elecraft] ] OT: K2

[Johnny Siu via Elecraft]

Hello Eric,
Please stay with the reflector.  Folks here are helpful and civilized.  
Opposite opinions can be expressed here without too much firing back (even you 
criticize elecraft).  Occasional OT is also allowed.
I once asked for tourist information in NYC.
73
Johnny VR2XMC

  寄件人︰ Eric J 
 收件人︰ "elecraft@mailman.qth.net"  
 傳送日期︰ 2016年09月21日 (週三) 2:35 AM
 主題︰ [Elecraft] OT: K2
   
I had recently stopped monitoring the reflector as I only have a K1 and 
two K2's. Everything is K3 and subject lines rarely reflect that anymore 
so it's hard to filter them. But I had a K2 problem and rejoined. Got a 
response with solution within an hour! And discovered that I miss the OT 
discussions from a unique bunch of experts. Most of the OTs are 
interesting and more relevant to a non-KX/K3 owner. So I'm back to 
monitoring only OTs. hi.

The new products don't fill any need in my hamming that isn't satisfied 
by the K2, but the ongoing development of the state of ham art at 
Elecraft is extraordinary to see.

Eric KE6US

On 9/19/2016 8:05 PM, Ron D'Eau Claire wrote:
> P.S. Us K2 owners are rather quiet these days. I suspect few are still
> monitoring the reflector. I miss the many questions about soldering,
> testing, setting up an antenna, etc. But time, and products, moves on..
>

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[Elecraft] K3 audio quality

[Johnny Siu via Elecraft]

I must say that I respectfully disagree '99% of the time the fault lies between 
the chair and the radio'.
My comments are restricted to voice mode.  Alan's comments are related to 
comparison with Icom DSP radios.  K3's audio in voice mode (no matter how you 
set / adjust the RX EQ) is far inferior than Icom.
The reason behind is the artifacts from K3 DSP.  I am of the opinion that the 
audio (not internal speaker) from KX3 is more comparable to Icom.
While I am not young and over 50, I can still hear up to 12KHz.  Perhaps, this 
is the reason why I am very sensitive to DSP artifacts.
73
Johnny VR2XMC

  寄件人︰ Kevin 
 收件人︰ elecraft@mailman.qth.net 
 傳送日期︰ 2016年09月16日 (週五) 7:57 PM
 主題︰ Re: [Elecraft] K3 audio quality
   
This has been a complaint for the last nine years and 99% of the time 
the fault lies between the chair and the radio. Did anybody do a proper 
audio setup on the rig when it arrived or did it just get tossed on the 
desk and turned on? You need to go to W3FPR's website and take a look at 
the audio settings Don worked up on the original K3.

The K3(s) is a highly configurable radio.

To be fair stick an outboard speaker on the K3 and tweek the audio 
settings. Then again some people don't want to mess with radio settings. 
The "appliance operators" expect perfect this and perfect that and don't 
want to lift a finger to get it.


On 9/16/2016 6:04 AM, Alan. G4GNX wrote:
> Hi all.
>
> I wonder if I can get some feedback about K3 audio from the built in speaker. 
> Please note that this is not a K3 bashing session, my comments are made as an 
> enquiry based on observed facts.
>
> We have a K3 at the local Ham Radio club and we often get complaints that the 
> audio from the internal speaker is not very good quality, even when signals 
> are 5/9 and virtually no RF noise. I suspect that part of the reason is that 
> the K3 is setup to someone’s personal preference, or not really setup at all!
> We made a comparison last week against a new Icom IC7300 which  also had an 
> external speaker and the IC7300 ‘won’ hands down. At first I made an excuse 
> that it was the external speaker, but we unplugged it and the IC7300 was 
> still superior.
>
> I have never really had an issue with audio on my personal K3, but then I’m 
> into clear communication and over the years I’ve trained my ears to listen in 
> the noise and pick out voices, whilst ignoring the mush, much the same as in 
> a crowded room when attempting a conversation with one or two individuals.
>
> I do know what good hi-fi sound is but do not necessarily look for that in a 
> communications device, so are some members being over-pedantic?
>
> Another Radio Ham reported that he had by accident parked his new K3S under a 
> shelf which ‘threw’ the sound forward and he found that it was greatly 
> enhanced. I wonder if fitting some sort of hood, in keeping with the K3’s 
> style, would be worth trying, or maybe replacing the internal speaker with a 
> better device. I don’t really want to start campaigning to purchase an 
> external speaker for the K3 because it’s another ‘lump’ that needs to be 
> carted around to club meetings and events.
>
> Thoughts?
>
> 73,
>
> Alan. G4GNX

   
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[Elecraft] KDSP2

[Johnny Siu via Elecraft]

Hello Phil,
Very well respected and I did read similar favorable comments about KDSP2 like 
yours in the past. The best part of this mail listing is that we are used to 
agree to 'disagree'.
My K2 was gone some time and replaced by K3 and KX3.  Now, I am keeping a close 
eye on the Icom new IC7610 SDR which I saw in Tokyo ham fair 2016.
73
Johnny VR2XMC

  寄件人︰ Phil Wheeler 
 收件人︰ elecraft@mailman.qth.net 
 傳送日期︰ 2016年08月29日 (週一) 9:36 AM
 主題︰ Re: [Elecraft] KDSP2
   
Au Contraire in my case, Johnny.  I've found the 
KDSP2 to be very effective and still use my K2/100 
in my secondary operating location as my QRO rig.

The issue with the KDSP2 is getting the settings 
right. That was tricky and probably took me a year 
or two of experimentation. But now it works very 
well for me and I find the NR very effective.

73, Phil W7OX

On 8/28/16 6:20 PM, Johnny Siu via Elecraft wrote:
> I will not regret the discontinuation of KDSP2.  In my case, I do not feel 
> any usefulness of the KDSP2,I sold it and replaced with a KAF2 at a much 
> lower cost.  While there are a number of settings in KDSP2 which you can 
> manipulate, regrettably none of the settings gave me a present result.  The 
> artifacts from the DeNoiser is huge and much worse than K3.
> IMHO, among the elecraft radios, the best Noise Reduction NR is in KX3 (I did 
> not try the KX2).  KDSP2 is in the audio stage and did not improve any 
> selectivity like the DSP in K3
> KAF2 in the used market is really cheap.  Adding the KAF2 will not cost much 
> but at least give you some listening comfort.  With some careful choices of R 
> and C in KAF2 (please refer to the manual), you will find yourself a sweet 
> spot even for SSB.
> 73
> Johnny VR2XMC
   
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[Elecraft] KDSP2

[Johnny Siu via Elecraft]

I will not regret the discontinuation of KDSP2.  In my case, I do not feel any 
usefulness of the KDSP2,I sold it and replaced with a KAF2 at a much lower 
cost.  While there are a number of settings in KDSP2 which you can manipulate, 
regrettably none of the settings gave me a present result.  The artifacts from 
the DeNoiser is huge and much worse than K3.
IMHO, among the elecraft radios, the best Noise Reduction NR is in KX3 (I did 
not try the KX2).  KDSP2 is in the audio stage and did not improve any 
selectivity like the DSP in K3
KAF2 in the used market is really cheap.  Adding the KAF2 will not cost much 
but at least give you some listening comfort.  With some careful choices of R 
and C in KAF2 (please refer to the manual), you will find yourself a sweet spot 
even for SSB.
73
Johnny VR2XMC

  寄件人︰ Guy Olinger K2AV 
 收件人︰ Mark E. Musick  
副本(CC)︰ Elecraft Reflector ; Jim Allen 

 傳送日期︰ 2016年08月29日 (週一) 9:07 AM
 主題︰ Re: [Elecraft] KDSP2
   
The K2 was first prototyped in October 1997. I'll bet no one back then
would have guessed that demand for parts would still be around 19 years
later in 2016.

73, Guy.


   
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[Elecraft] Battery Mod for K2 battery pack (was : Battery Pack Mod for the KX3)

[Johnny Siu via Elecraft]

Similarly, with the advance in battery technology, the lead acid battery in K2 
should be now advanced to a LiFePo pack as well.  There are ample space inside 
the K2 for installing a new charging circuit board.  This will greatly reduce 
the weight of a battery powered K2 and give much longer operating period.
73
Johnny VR2XMC
  寄件人︰ Erlend Grimseid 
 收件人︰ Elecraft@mailman.qth.net 
 傳送日期︰ 2016年07月6日 (週三) 6:37 AM
 主題︰ Re: [Elecraft] Battery Pack Mod for the KX3
   
+1 me to.

I have an lifepo4 battery consisting of 8 aa cells. (4s2p) External of
course. Good for a couple of hours of light use. About 2ah.

La4tta
Erlend
5. jul. 2016 11:49 p.m. skrev "Peter Lambert" :

> I'd definitely buy an LiFePO4 pack and INTERNAL charger board upgrade
> too.  But only if the batteries can be charged while inside the KX3.  I'd
> leave it the way it is if it meant opening the case to remove the batteries
> for charging.
>
> 73's Peter VK4JD
>
> -Original Message-
> From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of
> Doug Kingston
> Sent: Wednesday, 6 July 2016 7:39 AM
> To: Dan Baker
> Cc: elecraft@mailman.qth.net
> Subject: Re: [Elecraft] Battery Pack Mod for the KX3
>
> +1.  That is definitely a upgrade I would buy.
>
> On Sun, Jul 3, 2016 at 7:22 PM, Dan Baker  wrote:
>
> > I would like to be able to get rid of the AA cell holders inside the
> > KX3, and go with a battery pack similar to the KX2. LiFePO4 would be a
> > nice choice in a battery. For instance, I am very happy with
> > Bioennopower products, www.bioennopower.com Something similer would be
> > very nice. Wayne could write the firmware for different battery types
> > to accommodate charging inside the rig. Then Elecraft could sell us
> > some new parts to make the mod. I think there are more than a few of
> > us that would appreciate not having to take AA’s out of the rig. And
> > the added benefits of LiFePO4 are great.
> >
> >
> > Thanks,  Dan KM6CQ
> > __
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[Elecraft] RFI on K3s

[Johnny Siu via Elecraft]

Is the Powerwerx SS-30DV currently sold in the elecraft order page?
73
Johnny VR2XMC

  寄件人︰ Marty Koszewski 
 收件人︰ "elecraft@mailman.qth.net"  
 傳送日期︰ 2016年06月20日 (週一) 9:17 PM
 主題︰ Re: [Elecraft] RFI on K3s
   
I had the same issue.  It was caused by my Powerwerx SS-30DV.  After trying a 
number of things to mitigate the noise, I ended up replacing the power supply 
with a Samlex SEC 1235M.  Noise gone.  Problem solved.

Marty - K1MTK


---




Message: 20
Date: Sun, 19 Jun 2016 23:55:59 -0500
From: Clay Autery 
To: Elecraft Reflector 
Subject: [Elecraft] RFI on K3s
Message-ID: 
Content-Type: text/plain; charset=utf-8

I am seeing a repetitive RFI source every 34kHz from somewhere less than
20MHz thru 30MHz plus...

See attached image.  The amplitude alternates high/low every other
appearance.  The overall amplitude is higher or lower depending on the
location within the spectrum  Almost a sine wave function with a
VERY long period.

Anyone want to hazard a guess as to what is causing it?  I disco'd every
switch-mode power supply in the shack and adjacent rooms (couldn't do
the whole house as the XYL was home) EXCEPT my Powerwerx SS-30DV PS
running the K3s/P3.

Don't have a battery to run the radio on right now...



-- 
__
Clay Autery, KY5G
MONTAC Enterprises
(318) 518-1389



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[Elecraft] KPA500 LCD-Display mysterious failure

[Johnny Siu via Elecraft]

Hello Oli,
I experienced the same and contacted Elecraft support.  They suggested re-heat 
the solder of U6 and U11 in the front panel to eliminate cold solder joins.
However, my eye sight and hands are not good enough to do so.  I simply leave 
as it is because the LCD characters usually come back after 5-10 mins power on.
May I know the serial no of KPA500?  I suspect there could be a small patch of 
KPA500 with front panel minor defects.
73
Johnny VR2XMC

  寄件人︰ "Oli, DL1OLI" 
 收件人︰ "elecraft@mailman.qth.net"  
 傳送日期︰ 2016年06月14日 (週二) 1:20 AM
 主題︰ [Elecraft] KPA500 LCD-Display mysterious failure
   
Dear Elecraft-list, 

today I powered my KPA500 #1584 up and got no display on the KPA500. The 
backlight is working properly but the LCD shows nothing.

The Amp is working OK, it communicates with the KPA500 Remote utility, it 
communicates with the K3 and does 500 W Output as before. Only the LCD shows 
nothing. 
Even the keys for Menu and the bandkeys are working fine.

After some time, after I removed it from power complete several times, opening 
the top Cover, controlling remote, flashing new firmware ect. the LCD is 
mysteriously working again. 
Any tips to this? What to check for? Thank you.

vy 73 Oli
DL1OLI/AJ4UR

  
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[Elecraft] Inserting TMP cables - was: Problems with K144XV Transverter for K3S - Can't Hear Anything

[Johnny Siu via Elecraft]

In the installation of TMP of K144XV, I opened up the top cover of K144XV to do 
the installation so that I could ensure what I did was fine.  After that, I 
closed the top cover.
73
Johnny VR2XMC

  寄件人︰ Don Wilhelm 
 收件人︰ elecraft@mailman.qth.net 
 傳送日期︰ 2016年06月7日 (週二) 11:41 AM
 主題︰ [Elecraft] Inserting TMP cables - was: Problems with K144XV Transverter 
for K3S - Can't Hear Anything
   
I agree that TMP cables can be difficult to insert, but here is how I 
proceed:
First make sure there are no strands hanging out of the center conductor.
Then look at the very tip of the center conductor.  If it appears that 
the crimping process has produced two "ears" that extend outside the 
diameter of the center pin, you can use long nose pliers to reduce the 
width of those ears just a bit.  In other words, you are 'rounding" the 
tip slightly - do not take this to extremes and crush the tip, a gently 
'rounding' is all that it takes.

Then insert the male TMP into the female - look at the shell - if there 
is a gap between the male and female shells, the center conductor of the 
male tip is not yet started into the center conductor of the female 
jack.  Do not push yet, but twist and 'wiggle' the connector until the 
center conductor is started on its proper path.
Once the shell of the female closes the gap to the male connector shell, 
the center conductor has found its home.  Then is the time to push it 
home - a bit of a twist will help.

If you push hard on the connector before the center conductor has 'found 
its home', you will end up pushing the jack off its mounting lugs.  
Pressure toward the jack will not help until the center pin has begun 
seating.

73,
Don W3FPR

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[Elecraft] FS: KFL3A-2.1K 2.1 kHz, 8-pole filter

[Johnny Siu via Elecraft]

Hello Elecraft,
I have a  KFL3A-2.1K  2.1 kHz, 8-pole filter surplus to my requirement.  My 
price is USD109 inclusive of shipping by registered air mail to major cities in 
the world.  The filter will come with all the installation hardware,
If interested, please email me off-the-list vr2xmc at yahoo dot com dot hk
73
Johnny VR2XMC
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[Elecraft] P3 pricing

[Johnny Siu via Elecraft]

Hello George,
I am on your side.  It has been Elecraft's promise that their kit is as good as 
the assembled one.  In addition, they will back up all kit builders to ensure 
their success and up to factory specifications.  I built a number of K2, KX1 
and K3 on behalf of some hams (visual impaired) in the past.
73
Johnny VR2XMC

  寄件人︰ Gmail - George 
 收件人︰ Elecraft@mailman.qth.net 
 傳送日期︰ 2016年05月26日 (週四) 8:26 AM
 主題︰ Re: [Elecraft] P3 pricing
   
Maybe Elecraft can weigh-in about the "Burn-In Time" for the boards used in 
the kits.

I have all kits and suspect that my Elecrafts are actually as good as 
factory except they were assembled by a rank amateur (Elecraftwise).
I do know that I had no qualms about modify the filters or motherboard for 
the recent low freq operation; because I knew how to disassemble my K3.
If I ever have to trouble shoot any of the K-Line or KX3, I know where to 
look once I get the schematic out!
When I first went from Kenmore to Elecraft, the availability of the kit made 
it a know brainer to go to Elecraft.
The customer service and firmware & hardware updates have been the icing on 
my Elecraft cake.

73 George AI4VZ

-Original Message- 
From: Gee

I disagree that factory built value is nil. When I bought my K3 I was told 
factory builds went through a 24 hour burn in, and then checked for specs. 
That to me is value.

If a used item is 75% or more of new item pricing, the warranty alone 
decides for me to buy new.



  
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[Elecraft] KX3 User Group is now the KX User Group

[Johnny Siu via Elecraft]

I once gave my user comments about an after market heat sink for my own KX3 in 
a KX3 yahoo group. However, I was banned from that KX3 yahoo group with an 
allegation of advertising products. Ironically, I have no business relationship 
with that particular heat sink manufacturer but merely mentioned my user 
comments.
Hence, I quit that KX3 yahoo group without hesitation.  It was my personal 
experience in the past and I am not going to persuade you to join the KX3 yahoo 
group below or not.
Hopefully, the KX3 yahoo group experienced by me in the past is NOT the one 
mentioned below.
73
Johnny VR2XMC

  寄件人︰ Howard Hoyt 
 收件人︰ elecraft@mailman.qth.net 
 傳送日期︰ 2016年05月25日 (週三) 8:48 PM
 主題︰ [Elecraft] KX3 User Group is now the KX User Group
   
Hi all,

In response to requests from both Elecraft and new KX2 owners we have 
morphed the Yahoo KX3 User Group into the Elecraft KX User Group.  This 
is in keeping with Elecraft's division between their portable KX product 
line and their desktop K line.

We welcome the owners of any KX1, KX2, KX3, KXPA100, PX3, or accessory 
for any of these rigs to join with other like-minded Elecraft owners.  
We are over 5000 members strong and growing fast!

Chances are if you have a question about one of these rigs, there are 
many others who have answered that question in our group.  The Yahoo KX 
User Group is supported by both Elecraft personnel and others allied 
with Elecraft, so updates and beta firmwares are announced there.

To join, go to: https://groups.yahoo.com/KX3 Click on the "+ Join Group" 
button.

Cheers & 73,

Howard Hoyt - WA4PSC
Yahoo KX User Group Moderator
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[Elecraft] KX2 Satellite Derivative? (Was: Re: The KX2)

[Johnny Siu via Elecraft]

Instead of developing a new radio for SAT.  Can there be a device that can link 
two elecraft radios for up / downlink of SAT?
In the past, CT16 can link Icom IC275 and IC475 to work as a pair.
I think this route will save a lot of R&D for a new radio.
73
Johnny VR2XMC

  寄件人︰ Edward R Cole 
 收件人︰ David Anderson  
副本(CC)︰ Elecraft@mailman.qth.net
 傳送日期︰ 2016年05月25日 (週三) 6:47 PM
 主題︰ Re: [Elecraft] KX2 Satellite Derivative? (Was: Re: The KX2)
   
David,

At 12:43 AM 5/25/2016, David Anderson wrote:
>When I was active on the linear transponders of AO6 through to AO13 
>I never used a satellite duplex radio, always separates. We had much 
>better satellites then, in decent orbits like AO-10. So Yaesu in 
>particular brought out lovely expensive duplex radios. Great! 
>However then the linear sats gradually died and were replaced by 
>digital radio sats. Some FM one channel toy sats, but nothing like 
>the old wide linear transponders.

The FT-736R and other dual-band multi-mode duplex radios were 
produced for the early Heo linear transponder sats - true.  And the 
market for expensive big box radios faded with only single channel FM 
Leo sats.  Understandable that mfrs would go where the market is 
largest.  Kenwood and Icom still market such a radio; Yaesu 
stopped.  But they didn't drop out of the multi-mode VHF radio 
market...just a duplex model.


>Only recently with FunCube and the Chinese Sats have we started to 
>get linear voice transponders back, but again in low fast moving orbits.
>
>Many are now making use of SDR dongles or other SDR receivers as 
>their receiver for sats, because they have many advantages over the 
>old way of just being able to listen to your own receive channel. 
>With an SDR and panoramic can see all of the passband of the 
>transponder or transponders on multiple satellites at once. You can 
>point and click on a signal of interest. Record the whole pass and 
>play it back and see who you missed in the very short pass.  You 
>can run the SDR on a tablet computer in the field, and have more 
>capability than your old FT-736R of olden days.

And my proposal was not for such?  Clearly I stated it should be a 
direct frequency SDR, but married with a transmitter which the 
funcubes aren't.  I mentioned a panadapter and IQ interface to 
computer to support modern sw.


>In short, until we have high orbit transponders on VHF UHF like 
>AO-10/13 no manufacturer is going to produce an FT-736R replacement.

I bought an old FT-736R for more reasons than for satellite.  But 
that should not be confused with my proposal for a KX3-like duplex 
radio.  Certainly one would not compare the KX3 with a 
FT-840.  Totally a different product.  Totally new tech.

>  Any plans for a geostationary satellite would not use VHF UHF, but 
> microwave to get the bandwidth required for a third of the world 
> trying to access it at one time all the time.

Yes, that is true.  That will involve a new mw radio designed for the 
digital modes to be used.  Amsat is cognizant of the fact that hams 
will not be easily do this as was done for AO-40 s-band using surplus 
stuff.  The VHF radio + transverter will not suffice.  The concept 
under consideration includes SDR tech.


>Things have moved on, a single duplex box isn't what is needed.  A 
>transmitter CAT coupled to an SDR panoramic receiver is much better. 
>Point on the screen on the signal you see and with Doppler corrected 
>software set the transmitter you have via CAT to the uplink 
>frequency. It is also magnitudes cheaper.

Is that not what I talked about?  The KX3 is a SDR though limited to 
HF/6m + 2m transverter.  Perhaps a wide-range SDR would be better but 
you still need a comparable transmitter which can operate in 
duplex.  At present this still is a bunch of boxes wired together 
requiring a lot of engineering by the individual vs a complete package.

And such equipment should have more than a single application like 
satellite but instead offer a wide range of VHF+ operational activity 
- so one could buy just one box for doing all.  But you are correct 
that the concept should incorporate newest SDR technology with ample 
use of computing power.  I believe I mentioned all those requirements.

Maybe one can build a wide-range SDR based radio without need for 
transverters.  A SDR that tunes 50-4000 MHz but with comparable 
transmit capability.  I'm not sure that one can do direct freq SDR 
that far with existing tech. One thing to guard against is thinking 
SDR means only a receiver (which current funcube are).

It may be that we are too soon to accomplish that?  The first guy to 
do it will have the market.



73, Ed - KL7UW
http://www.kl7uw.com
    "Kits made by KL7UW"
Dubus Mag business:
    dubus...@gmail.com

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This

[Elecraft] KX2 Vs. KX3 Bottom Line

[Johnny Siu via Elecraft]

Hi Terry,
I feel it is very clever for elecraft to produce the KX2 so that they can sweep 
the remaining portion of the QRP market with minimal R & D.
Hopefully, they earn more to fund the development of a K4 or KX4?
73
Johnny VR2XMC



  寄件人︰ Terry Brown 
 收件人︰ elecraft@mailman.qth.net 
 傳送日期︰ 2016年05月25日 (週三) 8:37 AM
 主題︰ [Elecraft] KX2 Vs. KX3 Bottom Line
   
I have been reading all of the posts discussing the differences between the
KX2 and KX3.  All sorts of things have been discussed referring to the
buying decision, what the KX2 does or doesn't do, etc.  I am a KX3 owner and
love that radio.  As a KX3 owner, here is how I see the buying decision to
add a KX2 radio.  When the KX3 came out, we all marveled at its size and
capabilities and couldn't wait to use it for SOTA and other hikes and biking
portable.  Now the KX2 is out much smaller with somewhat fewer capabilities
but still a great rig.  

 

For me, the decision is a very simple one.  Would I be in situations hiking
where a radio smaller than the KX3 would be a benefit?  Considering what
else I might carry in a backpack to get to some operating location, how much
difference will a radio not quite half the size and 11 oz. lighter make the
overall load I am carrying?  If I am and carrying 20 lbs. in a pack, the
difference in weight is not much, and 20 lbs. isn't all that heavy.  The
heaver the pack, the less percentage wt. difference it makes.  For all
other applications, I would use the KX3.  It's so easy to get caught up in
the small size and great capabilities of the KX3.  The "new toy" syndrome
bites all of us, me included, however,  it really boils down to 11oz. and
not quite half the size for the capability tradeoffs between the two.  

 

Of course if a person does not own a KX3 already, the buying decision is
different, but still involves size vs. capability tradeoffs and does the
smaller size really buy a person that much benefit when toting it up a
trail.  If cost is a consideration for a first time buyer, then the KX2 is
an amazing radio for its  price and portability!

 

73's

 

Terry, N7TB

 

 

 

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[Elecraft] KX2 Satellite Derivative? (Was: Re: The KX2)

[Johnny Siu via Elecraft]

Hello Elecrafters,
I, of course, like the idea of SAT derivative.  However, as mentioned in my 
previous post, both KX2 and K3S are product life cycle extension to fully 
utilize the spent R&D.  These products are only evolution and not revolution.
I have much doubt on the market size of so called satellite radio from 
Elecraft.  With a look of the XV transverters especially the XV432, they are 
not cheap but there are issues such as heat issues under full specification 
output / power and frequency instabilities etc.
Hence, I am looking for something revolutionary and not evolutionary from 
Elecraft.  Both K3 and KX3 were revolutionary at the time of announcement.  
When I saw KX3 in 2011 Dayton, I was surprised and thought KX3 would kill all 
other brands QRP ham radios.
73
Johnny VR2XMC
previously XV50, XV144 and XV432

  寄件人︰ Kevin Stover 
 收件人︰ elecraft@mailman.qth.net 
 傳送日期︰ 2016年05月25日 (週三) 8:17 AM
 主題︰ Re: [Elecraft] KX2 Satellite Derivative? (Was: Re: The KX2)
   
I have changed my thinking on this.

My suggestion would be a kick butt single band 6m rig in a K3s box. All 
the bells and whistles the K3s has now with the addition of cross band 
duplex and 100W any mode no time limit. The other bands would be 
installed as transverters in a computer style main board in the rig. 
Each transverter would be capable of 50W minimum output, have it's own 
SO239/N connector. The current K3EXTREF would be standard for 10MHz 
reference, as well as a 0.5 ppm TCXO along with RX I/Q out ala KX3. A 
V/UHF version of the P3 would have to be offered for the computer averse 
among us.

Call it the K3s SAT+.

On 5/24/2016 6:44 PM, Kevin Stover wrote:
> I like it!
> Especially the laptop style dock.
>
> On 5/24/2016 4:33 PM, Edward R Cole wrote:
>> I replied in depth to Barry but let me share that more briefly with 
>> the List:
>>
>> My vision for a "KXV3sat" would be based on a 50-MHz direct 
>> conversion SDR (if that is practical at this time).
>> That would establish the IF for other bands which would be 
>> accomplished with transverters.  HF would be unnecessary and just 
>> take up valuable real estate inside the radio.
>>
>> To keep a KX3 sized concept power would likely be held to 10w on 2m 
>> and 70cm.  The radio would have IQ baseband access for running other 
>> sw on external computers.  Similar I/F for Line in audio and computer 
>> PTT would enable use of  sw other than the internal DSP.  SDR means 
>> any number of modes could be accommodated.  Stable LO would be 
>> required for NB digital modes and use with mw.  Full cross-band 
>> duplex plus computer tuning of both VFO's to enable satellite 
>> auto-tune from external sw.  BNC would suffice for ANT connections 
>> since power is low.  Battery operation (option).
>>
>> An option would be a K3 sized transverter housing which modules for 
>> 222, 432, 902, and 1.2 GHz that could be added making a complete 
>> 50-1296 package, or just what you want.  The KXV3sat would dock to 
>> this "console" for 'no external interconnect' wiring package.  
>> Probably modules would be 10w or maybe 25w.  If enough room, 60-80w 
>> PA boards might be included for 6m/2m/70cm. Though there are ext. 
>> PA's available from the ham community.
>>
>> Keeping the power down in the KXV3sat would make it usable for 
>> portable operating and keep it light.  Also 100w linears would likely 
>> add $300 per band to the total price.
>>
>> Design considerations would emcompass VHF/UHF SSB/CW/FM plus digital 
>> modes.  Interconnection for ext amps, ext freq. source, ext computer 
>> I/F, Panadaptor.  One could operate satellite in full-duplex and 
>> operating eme/ms/weak-signal modes.  Perhaps optional Rx antenna 
>> ports could be incorporated as options.
>>
>> My belief there is a large market for such a radio.  Satellite 
>> population is on the rise, so is small-scale eme.  VHF/eme 
>> Dxpeditions are on the rise for which a small footprint is desirable 
>> for airline baggage.
>>
>> Who will build it?
>>
>> 73, Ed - KL7UW
>> http://www.kl7uw.com
>>    "Kits made by KL7UW"
>> Dubus Mag business:
>>    dubus...@gmail.com
>>
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>>
>
>


-- 
R. Kevin Stover
AC0H
ARRL
FISTS #11993
SKCC #215
NAQCC #3441



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[Elecraft] K3 and KX3 questions for Wayne

[Johnny Siu via Elecraft]

Hello Gentleman,
I met both Wayne and Eric in the past, they are thick skin and like questions 
right in front of their faces.  Some questions for them to address will give 
them more desire to do better.  In return, we are benefited.
Actually, I don't mind having a KXPA100 delivering 100W under 12V power supply. 
 Just leave Wayne free hands to Wayne to answer and I trust he is in a better 
position to do so.
73
Johnny VR2XMC

  寄件人︰ Kevin Stover 
 收件人︰ elecraft@mailman.qth.net 
 傳送日期︰ 2016年05月23日 (週一) 8:20 AM
 主題︰ Re: [Elecraft] K3 and KX3 questions for Wayne
   
Further down in the same online spec page it states "Compact unit ideal 
for both desktop and mobile use". Note *mobile* use where the electrical 
system supplies more than 13.8V with the engine running.
I find no mention of the KXPA100 being developed as a "portable" amp. I 
have done searches of all Elecraft docs concerning the KXPA100 and find 
NO mention of the word *portable* anywhere. Nor do I find any mention of 
some nefarious board swap early in the products life.

Maybe the OP assumed because it has a carry strap that it is a portable 
amp. Well...My TS520 has a carry strap and a DC-DC converter. No way 
that can be classified as portable, it weighs 37lbs.

To be fair I have run it at field day but we had a 10KW diesel powered 
generator on a trailer. Power was NOT and issue.

On 5/22/2016 4:46 PM, Jim Brown wrote:
> Michael,
>
> A careful reading of the online data sheet for the KXPA100 is 
> instructive here.
>
> http://www.elecraft.com/KXPA100/kxpa100.htm
>
> The first line says "100 watts at 13.8 V, 1.8 to 29.7 MHz and 80 watts 
> 50-54 MHz PEP CW/SSB/DATA; ± 1 dB"
>
> Two points: First, the amplifier is rated for 13.8V, NOT 12V. Second, 
> the rating is +/1 dB, which is +/- 20% power. Thus, 80W on the HF 
> bands is within spec for 13.8V at the amplifier terminals.
>
> The second line says "13.8 VDC powered; 20 A typical current drain (11 
> V with lower output. 15 V max)"
>
> This clearly means that the unit is designed and rated for 13.8VDC, 
> can be operated from 11V to 15VDC, and will have reduced output at 
> lower supply voltages.
>
> Obviously, Ohm's Law dictates that resistance of the DC supply 
> conductors will reduce power supply voltage at the amplifier 
> terminals, so while we may have 12V or 13.8V at our battery terminals, 
> the voltage at the end of 6-12 ft of cable will be a bit lower with a 
> 20A load. For example, the drop in 6 ft of #10 is 0.24v; for #12, it's 
> 0.38V, and for #14, it's 0.6V.
>
> As others have noted, the operating voltage in so-called 12V DC power 
> systems using lead-acid batteries is not 12V, but rather 13.8V. If you 
> buy an AC power supply for ham gear, it will likely leave the factory 
> with its voltage regulator set for 13.8V. Open the manual or the spec 
> sheet for nearly all ham gear and you will find the supply voltage 
> specified as 13.8VDC.
>
> 73, Jim K9YC

  
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[Elecraft] New KX2?

[Johnny Siu via Elecraft]

Hello Walter,
Eric is a smart business man and Wayne is an elite engineer.
Both KX2 and K3S are product life cycle extension to fully utilize the existing 
R&D.  These products are only evolution and not revolution.
I trust Elecraft will use the cash generated from the above products to produce 
a revolutionary product at at later stage.
I keep track of Elecraft business case and use it as examples in my part time 
lecturing in business school.
73
Johnny VR2XMCbuilder of KX1, K2, K3, KX3

  寄件人︰ Walter Underwood 
 收件人︰ Elecraft List  
 傳送日期︰ 2016年05月20日 (週五) 12:41 AM
 主題︰ Re: [Elecraft] New KX2?
   
There is some sort of myth about the KX3 not being rugged. It was designed for 
trail use. With around 10,000 sold, I haven’t heard any reports of problems 
with ruggedness.

My KX3 has fallen hard enough to bend the BNC connector and it works fine. 

I would expect the KX2 to be slightly more rugged because the boards are 
smaller. That’s about it.

Of course, the SideKX panels provide extra protection for the knobs. That’s 
handy.

wunder
K6WRU
Walter Underwood
CM87wj
http://observer.wunderwood.org/ (my blog)

> On May 19, 2016, at 8:47 AM, Erlend Grimseid  wrote:
> 
> Looks cool. What I'm really curious about is if it is more "rugged " than
> the kx3.
> 
> La4tta
> Erlend
> 19. mai 2016 17:23 skrev "Phil Genera" :
> 
>> Manual: http://www.elecraft.com/manual/KX2%20owner's%20man%20A4.pdf
>> FAQ: http://www.elecraft.com/manual/KX2%20FAQ%20v-1-1a.pdf
>> 
>> --
>> Phil
>> 
>> On Thu, May 19, 2016 at 11:10 AM, Jim Finan  wrote:
>> 
>>> Up on Order page with a link to the spec sheet.
>>> 
>>> Didn't see it listed yet in 'Order Status'.
>>> 
>>> Jim
>>> 
>>> Jim Finan
>>> AB4AC
>>> 
>>> Sent from my BlackBerry 10 smartphone.
>>>  Original Message
>>> From: Edward R Cole
>>> Sent: Thursday, May 19, 2016 4:22 AM
>>> To: Elecraft@mailman.qth.net
>>> Subject: Re: [Elecraft] New KX2?
>>> 
>>> Guess if it is unveiled at Dayton - more excitement!
>>> 
>>> Quick look-over and doesn't appear to replace my KX3 which has more
>>> to offer me. I don't do SOTA so don't need super-small. Will enjoy
>>> reading about it once details are published.
>>> 
>>> 73, Ed - KL7UW
>>> http://www.kl7uw.com
>>> "Kits made by KL7UW"
>>> Dubus Mag business:
>>> dubus...@gmail.com

  
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[Elecraft] K3 vs K3S

[Johnny Siu via Elecraft]

Yes, the new KSYN3A synthesizer board is also good for SSB.  Perhaps, it should 
be the most valuable upgrade to K3.  If you don't have the funds for K3S, just 
do this upgrade, then over say 99% of the time you can't distinguish between a 
K3 Vs K3S
73
Johnny VR2XMC

  寄件人︰ Gary 
 收件人︰ K5WA ; elecraft@mailman.qth.net 
 傳送日期︰ 2016年05月16日 (週一) 12:00 PM
 主題︰ Re: [Elecraft] K3 vs K3S
   
What he saidand ditto for SSB.
Well worth the cost and effort.
Gary

-Original Message-
From: "K5WA" 
Sent: ‎16/‎05/‎2016 1:50 PM
To: "elecraft@mailman.qth.net" 
Subject: Re: [Elecraft] K3 vs K3S

Andy,
 
I don't have a YouTube video but when I put the new synth boards in my three
K3 (not K3S) rigs I found that I was able to handle close by signals better.
I'm mostly a CW contest guy so I can't say what SSB is like but a CW contest
seems to be less crowded now.  I know that is purely subjective and I have
no numbers of my own to support that but the published numbers and graphs
I've seen from others match what I am hearing.  I'm also happy that the new
synth boards help make my transmit signal cleaner as well.  I had a friend
record my signal when I was next to a "dirty" CW signal in a recent contest
and the difference is striking.  Yes, $250 USD is very expensive but I felt
it was well worth the cost.  After the CW keying issue improvement, I feel
like this synth upgrade is the most important improvement for me.
 
73,
Bob K5WA
 
Message: 2
>Date: Sat, 14 May 2016 07:13:27 +0200
>From: "Andrzej Worosz" 
To: 
Subject: [Elecraft] K3 vs K3S
 
Has anyone compare rx  K3 vs  K3 with a new synth ( K3S)  by the A / B 
switch metode ?
As heard issued abt 250 usd ( KSYN3A) , what is the difference?
Where can I find a movie with such comparisons, cant find on youtube.
 
73 Andy sp8brq
 

  
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[Elecraft] Need Advice - K3+

[Johnny Siu via Elecraft]

Hello Ed,
I have the feeling that K3S is transition model before any evolution product 
from Elecraft.  Or it is a way to extend the current K3 product life cycle - a 
classic business school case.
Hence, I tend to not heavily invest for a new K3S.  I did the KSYN3A upgrade 
which is crucial to the enhancement of performance.  The installation is easy.
73
Johnny VR2XMC

  寄件人︰ Phil Wheeler 
 收件人︰ elecraft@mailman.qth.net 
 傳送日期︰ 2016年05月3日 (週二) 5:03 AM
 主題︰ Re: [Elecraft] Need Advice
   
That's working well for me, Ed.

73, Phil W7OX


On 5/2/16 11:49 AM, Ed via Elecraft wrote:
> I have had my K3 for a few years and have always kept it up to date.  It 
> seems cheaper than taking a loss in selling it and springing for a K3S. I am 
> about to send it in again for the new synth boards and DSP board swap, etc.
>
> In the end, I will have 90% of a K3S. Is this the way to go?
>
> Thanks,
> Ed NI6S

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[Elecraft] Sherwood's receiver performance table updated

[Johnny Siu via Elecraft]

Well, Chris, I like my Tesla Model S 70D very much.  Hong Kong is good for EV 
because we are a small city.
73
Johnny VR2XMC

  寄件人︰ Chris Tate - N6WM 
 收件人︰ "elecraft@mailman.qth.net"  
 傳送日期︰ 2016年04月27日 (週三) 8:48 AM
 主題︰ Re: [Elecraft] Sherwood's receiver performance table updated
   
Maybe apples and oranges is not the best comparison.. how about this

Elecraft K3s = Porsche 
Flex 6000 = Tesla
IC-7300 = Nissan Leaf
Kenwood TS-590 =Toyota pickup

~C./WM







-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Kevin 
Stover
Sent: Tuesday, April 26, 2016 5:08 PM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] Sherwood's receiver performance table updated

Ditto we still don't use them.
Our users have a choice of laptop or iPad/Surface other than a desktop thin 
client on our VM Ware network.
90% choose the Win7 laptop. They're more expensive, slower, and break more 
often than the thin client but not as often as the iPads. The Surface's are new 
so no experience base with them yet. Our hardware group absolutely hate touch 
screens. I'm a Network Engineer...I have no use for them either.

My brother does IT for a school district that equipped all of their middle 
school kids with cutting edge iPads. 700 of them. My brother had to get good at 
replacing the very expensive coated touch screens that the evil empire said 
mere mortals couldn't replace. He got no help from Apple other than expensive 
parts. That experiment lasted three years and they switched to Chrome books.

I guarantee as sure as I'm sitting here *that touch screen will fail within a 
year...if not sooner*, and you've got no chance to fix it yourself. I can order 
parts from Elecraft for all my rigs and fix them. 
No sweat.

I'm curious why is direct sampling SDR's like the 7300 are supposed to be the 
second coming why Icom stuck with the traditional superhet architecture on it's 
"flagship" 7851? Maybe they realize the technology is at least 5 years away 
from being competitive. Everybody is ignoring W4TV's 800lb Gorilla, ADC 
overload.

On 4/26/2016 5:28 PM, Clay Autery wrote:
> Coat it however you want...  Doesn't stop dirt and grime being put on 
> the screen possibly scratching and/or gooping up the corners and edges...
>
> I've been in IS/IT for 25+ years...  Screens are not for touching.
>
> Bottom Line...  I'll stick with buttons, dials, and switches, thank 
> you.  :)
>
> __
> Clay Autery, KG5LKV
> MONTAC Enterprises
> (318) 518-1389
>


--
R. Kevin Stover
AC0H
ARRL
FISTS #11993
SKCC #215
NAQCC #3441



---
This email has been checked for viruses by Avast antivirus software.
https://www.avast.com/antivirus
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[Elecraft] K2 total loss

[Johnny Siu via Elecraft]

You need also a proper desoldering tool.  If still no luck, pass it to Don 
W3FPR as suggested by Wayne.  Don guided me for a number of K2 repairs in the 
past.
73
Johnny VR2XMC

  寄件人︰ lstavenhagen 
 收件人︰ elecraft@mailman.qth.net 
 傳送日期︰ 2016年04月15日 (週五) 4:25 AM
 主題︰ Re: [Elecraft] K2 total loss
   
Hi Wayne,
Ah, ok, well... let me take another look, then. This is in the bandpass
filter so didn't know how critical this was...

Tnx es 73,
LS
W5QD



  
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[Elecraft] [k3] Isotropic Antenna

[Johnny Siu via Elecraft]

I agree with Peter and share the same experience as Peter.  The antenna works 
but only in some particular conditions.
Waste my time.  Of course, I can be blamed about not clever enough to use it.
73
Johnny VR2XMC

  寄件人︰ "Petr, OK1RP/M0SIS" 
 收件人︰ elecraft@mailman.qth.net 
 傳送日期︰ 2016年04月7日 (週四) 5:41 PM
 主題︰ Re: [Elecraft] [k3] Isotropic Antenna
   
Hi Bruce and others,

I am sure that David talked about an Isotron antennas like this:
https://www.isotronantennas.com/

I intensively tested/used this antenna in 90's on 40m (product from Sigi,
DK9FN) and I have to say it is a nightmare in overall. From my own
experiences the performance of this toy was highly dependent to the
grounding availability, bandwidth was very small and tunning was influenced
by ground only but also by closed objects a lot.
Also the weather changes made bad impact for SWR like snow, rain etc. 
Finally in 90's this toy was quite new and like any fashionable piece it was
really overpriced.

David,

As you can see the price these days is not so high but I do not believe that
something changed in its performances. If you would like to spend time with
playing around it (instead of enjoying the on-air operation) then you can
build it ownself as there is nothing magic on it. In any case do not waste
your money with buying it.

Hope it helps,

73 - Petr, OK1RP






-
http://ok1rp.blogspot.com
--
View this message in context: 
http://elecraft.365791.n2.nabble.com/k3-Isotropic-Antenna-tp7615991p7616011.html
Sent from the Elecraft mailing list archive at Nabble.com.
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[Elecraft] OT: 60m band - usual communication range

[Johnny Siu]

Thanks for all your replies.
73
Johnny VR2XMC

  寄件人︰ Kevin Cozens 
 收件人︰ Elecraft  
 傳送日期︰ 2016年03月3日 (週四) 3:06 AM
 主題︰ Re: [Elecraft] OT: 60m band - usual communication range
   
On 16-03-02 03:52 AM, Johnny Siu wrote:
> Local telecommunication authority is considering 60m operation for the
> hams in VR2. For output power of 15W PEP, using a dipole for NVIS, what
> would be the likely usual communication range 7/24 round the clock?

I haven't used the band but I would expect it would have characteristics 
similar to the 80m and 40m band. Those bands are generally short range 
during local daylight hours and can be around the world after sunset.

-- 
Cheers!

Kevin.

http://www.ve3syb.ca/           |"Nerds make the shiny things that distract
Owner of Elecraft K2 #2172      | the mouth-breathers, and that's why we're
                                | powerful!"
#include  |            --Chris Hardwick
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[Elecraft] OT: 60m band - usual communication range

[Johnny Siu]

Dear Elecrafters,
Local telecommunication authority is considering 60m operation for the hams in 
VR2. For output power of 15W PEP, using a dipole for NVIS, what would be the 
likely usual communication range 7/24 round the clock?  100km radius?
Any advice will be appreciated and thanks for the band width here.
73
Johnny VR2XMC
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[Elecraft] Icom 7300 is available

[Johnny Siu]

Hello JOe,
Checking from websites in JA, street price in Akihabara, Tokyo is far cheaper 
for IC7300.
73
Johnny VR2XMC

  寄件人︰ "Joe Subich, W4TV" 
 收件人︰ elecraft@mailman.qth.net 
 傳送日期︰ 2016年03月2日 (週三) 5:18 AM
 主題︰ Re: [Elecraft] Icom 7300 is available
   

If one is not a backpacker or wants 100W output - perhaps for mobile
work - the "traditional knob" interface, built in tuner, support for
the AH-3/AH-4 tuners at the antenna, 100W, etc. make the IC-7300 quite
interesting.  IIRC, the 7300 will do PSK31/RTTY with an internal
decoder and attached keyboard.  Icom's claimed RMDDR and phase noise
specifications will, if accurate, put the 7300 in the top echelon of
Sherwood's test results.  The 7300 has what appears to be relatively
"tight" preselectors which should minimize the "composite signal level"
ADC overload (much more than the Flex-6300 with no preselectors) and
those with limited antennas (e.g. mobile, compromise wires, etc.) are
even less likely to see the strong signal composite overload than
someone with big antennas high in the air.

My disappointment is that after claiming the 7300 would be an "entry
level" rig, the price is well above that of Icom's other entry level
rigs (the IC-718 or IC-7100).  At the announced price, the 7300 should
have included a RX ANT Out/RX ANT In "loop," support for a second
antenna, and a video output to feed a larger display.

At its size and power level the 7300 is not the "backpacker's special"
nor was it intended to be.  To make that comparison is patently unfair.

73,

    ... Joe, W4TV


On 3/1/2016 3:58 PM, Jim Brown wrote:
> YES!  In addition to being a great mobile and fixed station rig, it's a
> backpacker's dream! Last summer, I loaned my KX3/KXPA100 with a 20Ah
> LiFePO4 battery to AF6RT and W6JTI, who dragged it up a 2 mile trail
> with a 1,000 ft gain in elevation to light up a rare 6M grid. They were
> also dragging an antenna, coax, a computer, water, and lunch. At the end
> of the day, they still had power left in that battery.
>
> 73, Jim K9YC
>
> On Tue,3/1/2016 12:08 PM, Wayne Burdick wrote:
>> Beyond that, the KX3:
>>
>>  - is about 1/5th the size
>>  - is about 1/5th the weight
>>  - consumes probably 1/10th as much RX-mode current
>>  - has an internal battery
>>  - has an attached keyer paddle
>>  - has built-in stereo audio and CW/RTTY/PSK31 text decode with a PC
>>  - works with integrated peripherals (PX3 and KXPA100) that can be
>> left at
>>    your fixed station when traveling
>>
>> So if you're operating portable, it's an apples/oranges comparison.
>
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[Elecraft] ERR BP3 and ERR IF2

[Johnny Siu]

 Thanks for the hints.  The problem went away after I simply swapped the KNB3 
boards between the main and KRX3.
73
Johnny VR2XMC

  寄件人︰ Klaus Koppendorfer 
 收件人︰ Johnny Siu ; Elecraft  
 傳送日期︰ 2016年01月29日 (週五) 7:33 PM
 主題︰ AW: [Elecraft] ERR BP3 and ERR IF2
   
Clean the contacts from frontpanel to mainboard


-Ursprüngliche Nachricht-
Von: Elecraft [mailto:elecraft-boun...@mailman.qth.net] Im Auftrag von Johnny 
Siu
Gesendet: Freitag, 29. Jänner 2016 11:06
An: Elecraft 
Betreff: [Elecraft] ERR BP3 and ERR IF2

Hello Elecrafters,
I have just done the KBPF3 modification in the sub receiver KRX3. However, upon 
turn on the K3, I got the error messages ERR BP3 and ERR IF2.
I tried to access the CONFIG menu. I can get KIO3 and KPA3 but not KNB3.  In 
other words, KIO3 is after by KPA3 in the CONFIG menu and no KNB3.
Any advice before I shoot an email to elecraft support.
73
Johnny VR2XMC
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[Elecraft] ERR BP3 and ERR IF2

[Johnny Siu]

Hello Elecrafters,
I have just done the KBPF3 modification in the sub receiver KRX3. However, upon 
turn on the K3, I got the error messages ERR BP3 and ERR IF2.
I tried to access the CONFIG menu. I can get KIO3 and KPA3 but not KNB3.  In 
other words, KIO3 is after by KPA3 in the CONFIG menu and no KNB3.
Any advice before I shoot an email to elecraft support.
73
Johnny VR2XMC
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[Elecraft] Low power KX1

[Johnny Siu]

Hello Richard,
Can you get full power output without the installation of the KXAT1? If yes, 
they can concentrate your trouble shoot on the KXAT1 only.  Below is an extract 
from my review in eham. 

"The tiny LPF1 pcb of KXB3080 is to be situated in the tight space formed 
between the C46-C49& C54 area of KX1 and R3-R4 & C10 area of KXAT1. Therefore, 
Page 3 of KXAT1 manual, R3, R4& C10 should be soldered on the component side 
and cut flush on the other side".

See whether there are component leads from the KXAT1 touch the KX1 components.
73
Johnny VR2XMC  寄件人︰ Richard 
 收件人︰ Elecraft@mailman.qth.net 
 傳送日期︰ 2016年01月18日 (週一) 5:11 AM
 主題︰ Re: [Elecraft] Low power KX1
   
Thank you Don and Ray,

The information proved valuable.  Just pushing around on the toroids made a
change so I knew I had a bad connection somewhere.  With minor surgery I was
able to reheat the joints, and without the ATU board installed I have 40 to
48 VPP across the bands.  I also found that my dummy load was highly
inductive, going over 5 to 1 @ 14Mhz. (using a rigexpert AA-30) I made a new
one that came out at 51ohms resistive.

I think I have something attenuating the signal in the ATU board, as after
it, in both cal and tune modes I have quite a drop in signal.

Results        No tuner      tuner in cal      tuner in tune
3                51v              25                20
7                48v              30                27
10                46v              45                45
14                40v              27                19

 In the test modes, I can hear each relay click. And in cal mode they look
like they bypass by shorting the inductors, so I am lost.  My electronic
skill is at "I wish I had a lot more"  Any and all help is appriciated.

Thank you in advance. 
      Richard
 

-Original Message-
From: Don Wilhelm [mailto:w3...@embarqmail.com] 
Sent: Sunday, January 17, 2016 2:11 AM
To: rich...@inparadise.us; Elecraft@mailman.qth.net
Subject: Re: [Elecraft] Low power KX1

Richard,

Take a careful look at the Low Pass Filter board for the KXB3080 option.
Count the turns.  Each time the wire passes through the toroid core is one
turn.  Make certain you have the correct number of turns.  
That LPF is the downfall of many builders.  In addition, count the turns on
T1 - the ame thing applies.
Also on the same toroids, be certain the leads were well stripped and
tinned.  Look at the solder side.  If you can see a ring around the lead,
that lead was not adequately stripped and tinned.  You should be able to see
a small bit of tinned lead on the component side of the board.
The LPF board should be *exactly* like that shown in the KXB3080 option
manual illustrations.  There is no room for exceptions.  Be certain the
green lead of L2 is oriented away from red lead #4.

You will need an external QRP wattmeter to properly calibrate the wattmeter
in the KXAT1, but if you have a good 50 ohm dummy load, you can use your
'scope to measure the RF voltage across it.  Use a 10X probe on the 'scope
and measure the peak to peak voltage.  If the dummy load is sealed, use a T
adapter to gain access to the center conductor.
The power is the square of the peak to peak voltage divided by 400. 
Derivation of that formula is "left to the student".

73,
Don W3FPR

On 1/16/2016 8:53 PM, Richard wrote:
> From: Richard [mailto:rich...@inparadise.us]
> Sent: Saturday, January 16, 2016 8:50 PM
> To: Elecraft@mailman.qth.net'
> Subject: Low power KX1
>
>
> I am very new to the world of CW.  Several months ago I built a KX1.  Once
I
> was able to receive with it, I built the 30-80 band set, and once it was
> installed and working, I built the ATU.  With the ATU was the first time I
> was able to measure power.  I am only getting .4W out of internal, and 1W
> with a 13 volt power supply.  So I did the power modification changing the
> resistors, and now I get .6 internal and 2W with 13V.
>  
> I could sure use some advice.  I do not have a bridge or watt meter.  I do
> have a good scope  Can I measure the signal voltage across 50 ohms?
>  
> Thank you in advance.
>  
>            Richard
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[Elecraft] Low power KX1

[Johnny Siu]

Hello Richard,
Please have a look of my review :

 http://www.eham.net/reviews/detail/3586
There are some construction hints.
73
Johnny VR2XMC

  寄件人︰ Richard 
 收件人︰ Elecraft@mailman.qth.net 
 傳送日期︰ 2016年01月17日 (週日) 9:53 AM
 主題︰ [Elecraft] Low power KX1
   
From: Richard [mailto:rich...@inparadise.us] 
Sent: Saturday, January 16, 2016 8:50 PM
To: Elecraft@mailman.qth.net'
Subject: Low power KX1


I am very new to the world of CW.  Several months ago I built a KX1.  Once I
was able to receive with it, I built the 30-80 band set, and once it was
installed and working, I built the ATU.  With the ATU was the first time I
was able to measure power.  I am only getting .4W out of internal, and 1W
with a 13 volt power supply.  So I did the power modification changing the
resistors, and now I get .6 internal and 2W with 13V.
 
I could sure use some advice.  I do not have a bridge or watt meter.  I do
have a good scope  Can I measure the signal voltage across 50 ohms?
 
Thank you in advance.
 
          Richard
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[Elecraft] KSYN3 Synthesizer

[Johnny Siu]

Hello elecrafters,
I have two old KSYN3 after I installed the new one in my K3. If you would like 
to take them, all you paid is the shipping postage.
If you are interested, please contact me off-the-list.
73
Johnny VR2XMC
 
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[Elecraft] WTB: KIO3 board

[Johnny Siu]

Hello Elecrafters,
If you are going to take the new KIO3B, and existing KIO3 board becomes 
redundant,  I would like to take KIO3 Audio I/O module E850236.  It is just a 
small piece of PCB and can be shipped easily in a padded envelope by airmail.
Please reply off-the-list with your price.
73
Johnny VR2XMC
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[Elecraft] KIO3 board

[Johnny Siu]

Hello Gentleman,
If you are going to take the new KIO3B, and existing KIO3 board becomes 
redundant.  I would like to take KIO3 Audio I/O module E850236.  It is just a 
small piece of PCB and can be shipped easily in a padded envelope by airmail.
Please reply off-the-list.
73
Johnny VR2XMC
 

  寄件人︰ GRANT YOUNGMAN 
 收件人︰ Elecraft Reflector  
 傳送日期︰ 2015年12月21日 (週一) 1:11 AM
 主題︰ Re: [Elecraft] K3IOB
   
I guess the good news is that because so many of you folks think you’ll pass, 
I’ll get mine sooner ;-)

I consider the fact that it provides a single-cable multi-function interface 
between computer and radio, eliminating other miscellaneous and potentially 
problematic goop in between, to be a good thing.  And stuff costs what it 
costs. So even though I’m mostly a luddite who doesn’t generally treat a radio 
as simply one more in a long chain of computer peripherals, I’ll most likely 
have an order placed as soon as it shows up :-)

Grant NQ5T
K3 #2091, KX3 #8342





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[Elecraft] Status of KIO3B for Elecraft K3 - also DSP board

[Johnny Siu]

Hello Bob,
Oh, I would also like to know when the new DSP board (with improved audio) will 
be available for K3 upgrade.
As an overseas user, it is better for me to order everything in one-go.
73
Johnny VR2XMC
  寄件人︰ Robert Nobis 
 收件人︰ Elecraft Reflector  
 傳送日期︰ 2015年11月16日 (週一) 9:00 AM
 主題︰ [Elecraft] Status of KIO3B for Elecraft K3
   
Is there an update on the availability of the KIO3B for the K3? The last I 
heard was available before the end of this year.

Thanks and 73,


Bob - N7RJN

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[Elecraft] OT- K3 KXV3A for sale

[Johnny Siu]

KXV3A for sale, perfect shape, light use.Includes cover panel, mounting screws, 
installation manual and cable.  US$75 shipped to US, UK, Europe and major 
cities in the world by registered airmail.
If interested, please contact me off-the-list vr2xmc at yahoo dot com dot hk
Thanks for the bandwidth here.
73
Johnny VR2XMC


  
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[Elecraft] OT: VHF radio in Tesla Model S

[Johnny Siu]

Hello Gentleman,
Due to time zone, I come into discussion a bit late.  My Model S 70D should 
come in about two weeks.
I do intent to put my KX3 mobile.  Since Model S is like a big computer with 
wheels, I am worried about whether TX from KX3 (or later with KXPA100)will 
cause RFI to the car.  Also antenna installation is another area to be thought 
about.
Any ideas?
73
Johnny VR2XMC
  寄件人︰ Rick Tavan N6XI 
 收件人︰ Barry  
副本(CC)︰ Elecraft Reflector  
 傳送日期︰ 2015年10月7日 (週三) 5:30 AM
 主題︰ Re: [Elecraft] OT: VHF radio in Tesla Model S
   
I have 2M and 1.2GHz radios in my Model S. They work fine with no
detectable RFI in either direction. I have a no-holes installation, which
is sub-optimal but I couldn't bear the thought of drilling into this
expensive but totally awesome vehicle.

73,

/Rick N6XI

On Tue, Oct 6, 2015 at 1:57 PM, Barry  wrote:

> My apologies for starting this thread.  I had no idea it would take such a
> perverse turn from a simple question.
>
> Barry W2UP
>
>
>
> --
> View this message in context:
> http://elecraft.365791.n2.nabble.com/OT-VHF-radio-in-Tesla-Model-S-tp7608742p7608767.html
> Sent from the Elecraft mailing list archive at Nabble.com.
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> Message delivered to rta...@gmail.com
>



-- 
Rick Tavan N6XI
Truckee, CA


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[Elecraft] K3 New kio board

[Johnny Siu]

I want to know too because they will soon raise their prices.
73
Johnny VR2XMC
  寄件人︰ Gary 
 收件人︰ Elecraft  
 傳送日期︰ 2015年09月24日 (週四) 2:43 PM
 主題︰ [Elecraft] K3 New kio board
   
Anyone heard of a release date for those wishing to upgrade their k3 to have 
the USB option?

An email to Elecraft direct went unanswered.

Gary 
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[Elecraft] K3 RX in real world

[Johnny Siu]

Hello Bill,
Real world experience could be difference for different operator and I don't 
think someone is selling you away from the K-Line.
Radio is a science so that we can still begin with some numbers.  Among the top 
notch radios, choice eventually becomes a user preference.
I once had the luxury to own all the real big Icoms and K3.  I now downsize my 
station for other priority (getting funds to support the purchase of my Tesla 
Model S).  I sold the big Icoms at good price and now just keep the K3 for 
occasional contest operation.
I am not the one who always clap my hands towards elecraft but I will keep 
Wayne and Eric busy in improving their products.  In the past, I shout loudly 
about the artifacts and poor audio of K3. Now in the K3S, they get better audio 
section for the radio.
One thing, I do appreciate that elecraft gives us the chance to upgrade our old 
K3 (though not cheap).  The same philosophy is also found in Tesla.  The owners 
have the chance to update their cars.
Enjoy your K-line and so will I.
73
Johnny VR2XMC
  寄件人︰ Bill 
 收件人︰ elecraft@mailman.qth.net 
 傳送日期︰ 2015年09月16日 (週三) 4:29 AM
 主題︰ Re: [Elecraft] K3 RX in real world
   
Real World - that is all that really counts. All the testing and arguing 
that has been appearing of late is great, if you are a numbers cruncher 
and chart maker. But, to my thinking - the technical performance 
differences between the top rigs can only be discerned in a "copper" room.

Real world experience with QRM, QRN, good or poor antennas, band 
conditions are all the great equalizers. Reported real world experience 
- comparing one rig (A to B) - is of far greater value to me than a list 
of numbers.

Lots of explanations why one rig is preferred over another: handles 
QRM/QRN better, has more pleasing audio, better/worse ergonomics, more 
??? for the money, too many menus, great audio reports, great 
keyer/break-in, eye candy, etc.

Of course, all that said - it would be a very hard sell to get me away 
from my K3-Line. But, it would be interesting reading never-the-less.

Bill W2BLC K3-Line


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[Elecraft] K3 to IC-7800 Comparison?

[Johnny Siu]

Yes, Adam did the test for both 2.7Khz 5 pole and 2.8Khz 8 pole.
73
Johnny Vr2XMC
  寄件人︰ Adam Farson 
 收件人︰ 'Jim Bolit'  
副本(CC)︰ 'Johnny Siu' ; Elecraft List 
 
 傳送日期︰ 2015年09月16日 (週三) 12:03 AM
 主題︰ RE: [Elecraft] K3 to IC-7800 Comparison?
   
#yiv3730855040 #yiv3730855040 -- _filtered #yiv3730855040 {panose-1:2 2 6 9 4 2 
5 8 3 4;} _filtered #yiv3730855040 {font-family:PMingLiU;panose-1:2 2 5 0 0 0 0 
0 0 0;} _filtered #yiv3730855040 {panose-1:2 4 5 3 5 4 6 3 2 4;} _filtered 
#yiv3730855040 {font-family:Calibri;panose-1:2 15 5 2 2 2 4 3 2 4;} _filtered 
#yiv3730855040 {font-family:Tahoma;panose-1:2 11 6 4 3 5 4 4 2 4;} _filtered 
#yiv3730855040 {panose-1:2 2 6 9 4 2 5 8 3 4;} _filtered #yiv3730855040 
{panose-1:2 2 5 0 0 0 0 0 0 0;}#yiv3730855040 #yiv3730855040 
p.yiv3730855040MsoNormal, #yiv3730855040 li.yiv3730855040MsoNormal, 
#yiv3730855040 div.yiv3730855040MsoNormal 
{margin:0cm;margin-bottom:.0001pt;font-size:12.0pt;}#yiv3730855040 a:link, 
#yiv3730855040 span.yiv3730855040MsoHyperlink 
{color:blue;text-decoration:underline;}#yiv3730855040 a:visited, #yiv3730855040 
span.yiv3730855040MsoHyperlinkFollowed 
{color:purple;text-decoration:underline;}#yiv3730855040 
p.yiv3730855040MsoAcetate, #yiv3730855040 li.yiv3730855040MsoAcetate, 
#yiv3730855040 div.yiv3730855040MsoAcetate 
{margin:0cm;margin-bottom:.0001pt;font-size:8.0pt;}#yiv3730855040 
span.yiv3730855040BalloonTextChar {}#yiv3730855040 
span.yiv3730855040EmailStyle19 {color:#1F497D;}#yiv3730855040 
.yiv3730855040MsoChpDefault {font-size:10.0pt;} _filtered #yiv3730855040 
{margin:72.0pt 72.0pt 72.0pt 72.0pt;}#yiv3730855040 
div.yiv3730855040WordSection1 {}#yiv3730855040 Hi Jim,  2.7 kHz 5-pole. I have 
added this information to my chart.  73, Adam VA7OJ/AB4OJ    

From: Jim Bolit [mailto:jbol...@outlook.com] 
Sent: 15-Sep-15 05:13
To: Adam Farson; 'Johnny Siu'
Cc: Elecraft List
Subject: RE: [Elecraft] K3 to IC-7800 Comparison?  Adam,      Please confirm 
what roofing filter was used for your test on the K3.  Tnx  JimW6AIM    .

 Original message 
From: Adam Farson  
Date: 9/14/2015 3:14 AM (GMT-06:00) 
To: 'Johnny Siu'  
Cc: Elecraft List  
Subject: Re: [Elecraft] K3 to IC-7800 Comparison? Hi Johnny,

 

The K3 with the KSYN3A is in a closely-packed cluster of radios which score 
highest in the NPR test. Its exact ranking depends on which test frequency is 
being compared. The differences are very slight, mostly within a couple of dB.

 

In practice, I regard an NPR value of 80 dB or higher as excellent.

 

73, Adam VA7OJ/AB4OJ

 

 

From: Johnny Siu [mailto:vr2...@yahoo.com.hk] 
Sent: 14-Sep-15 00:54
To: Adam Farson; Elecraft List
Subject: K3 to IC-7800 Comparison?

 

Hello Adam,

 

From reading of your NPR chart, could I understand that apart from IC7851, the 
K3 (with new KSYN3A installed) is the second best in terms of NPR test?

 

73

 

Johnny VR2XMC

 

  _  

寄件人︰ Adam Farson 
收件人︰ Elecraft List  
傳送日期︰ 2015年09月14日 (週一) 2:51 PM
主題︰ Re: [Elecraft] K3 to IC-7800 Comparison?


For Jim K9YC:



Hi Jim,



Many thanks for the post on my presentations at the club meeting on Saturday
September 5.



To quote:

"There's an important caveat to his work. The NPR measurements require 

very sophisticated band-stop filters in his instrumentation setup, and 

based on the filters he has been able to source, that limits the 

frequency range where he can do his measurements. An example is in the 

footnote for the Flex-6700, which has no preselector for the range where 

he had to do his measurements, which may have caused that radio to 

measure worse than it would on the ham bands."



The instrumentation I use for NPR testing is re-purposed telecom test
equipment, as described in my Web article and also in my article in QEX for
March/April 2015. I rely on the surplus market for the test sets, and also
for the filter pairs (bandstop and bandpass). The bandstop filters typically
have 95 dB stopband attenuation and ~ 3 kHz stopband width.



A number of these filters are on (or near) amateur bands, e.g. 1940, 3886,
5340, 7600 and 11700 kHz. The first filter pair I acquired was on 5340 kHz,
so all the test data in my web article are on this frequency (which is in
the 60m band). The Flex-6700 does not have a preselector for this band, so
the noise loading will hit the front end and the ADC harder. This will
degrade the NPR reading by a few dB, but it will show how the receiver
behaves if heavily loaded on a band for which no preselector is fitted.



As I picked up additional filters, the number of frequencies on which I run
the test has steadily increased. Links to multi-frequency NPR data for
various radios (including the K3 with KSYN3A) are on my website:



http://www.ab4oj.com/test/main.html#NPR  
<http://www.ab4oj.com/test/main.html#NPR> 



It was a pleasure meeting you guys over the Labour Day weekend.



73, Adam VA7OJ/AB4OJ



___

[Elecraft] Elecraft SP3 External Speaker details

[Johnny Siu]

Hello Gene,
I do not want to publicize any Japanese dealer in this mail listing because I 
am not a radio dealer or doing any radio dealing business.
The official full listed price of Icom SP23 is JPY12,800 (+VAT)
IC-7600　オプション｜アマチュア無線機器｜アイコム株式会社

|   |
|   |  |   |   |   |   |   |
| IC-7600　オプション｜アマチュア無線機器｜アイ...SP-23 外部スピーカー 145（W）mm × 111（H）mm × 282.5（D）mm 
（突起物除く） \12,800＋税  |
|  |
| 查看於 www.icom.co.jp | Yahoo 預覽 |
|  |
|   |


As a foreigner, we have no need to pay any VAT in Japan.  Furthermore, street 
retail price is at a handsome discount on the official full listed price.
If you want me to give your more details about ham shops in Akihabara, Tokyo, 
please feel free to contact me off-the-list.
73
Johnny VR2XMC  寄件人︰ Gene Gabry 
 收件人︰ elecraft@mailman.qth.net 
 傳送日期︰ 2015年09月15日 (週二) 8:46 PM
 主題︰ Re: [Elecraft] Elecraft SP3 External Speaker details
   
Johnny,

Are you sure that's not a knock off at that price? With the yen devalued, 
hovering around 120:1(USD), I would think it would be more expensive in Japan 
than what it sells for in the US. I've been to Akihabara many times, and I 
would tend to question its authenticity. I'll be back there this October, and 
will check it out. 


73 Gene N9TF

-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Johnny Siu
Sent: Tuesday, September 15, 2015 6:25 AM
To: tmyers1...@sbcglobal.net; elecraft@mailman.qth.net
Subject: [Elecraft] Elecraft SP3 External Speaker details

The retail price of ICOM SP23 in Akihabara, Tokyo is now about USD80.
73
Johnny VR2XMC      寄件人︰ Terry 
 收件人︰ elecraft@mailman.qth.net
 傳送日期︰ 2015年09月15日 (週二) 7:08 PM
 主題︰ Re: [Elecraft] Elecraft SP3 External Speaker details
  
Just because others are doing it doesn't make it right!

73,
Terry, KQ5U


On 9/14/2015 10:01 PM, Gene Gabry wrote:
>
> Very good point Tony
> http://www.universal-radio.com/catalog/speakers/1696.html
>
> Puts things into perspective :)
>
> 73 Gene N9TF
>
> K3S 10057
>
>> Subject: Re: [Elecraft] Elecraft SP3 External Speaker details Have 
>> any of you who are complaining seen the prices of speakers from other
> radio manufacturers?  How about the other third-party speaker makers?
>> Elecraft is in the ballpark.
>> A lot of folks asked (begged, bugged, pestered...) Elecraft to come 
>> out
> with a speaker for the line.  They finally relented.  Thank you, Elecraft!
>
>> 73, Tony K4QE

  
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[Elecraft] Elecraft SP3 External Speaker details

[Johnny Siu]

The retail price of ICOM SP23 in Akihabara, Tokyo is now about USD80.  
73
Johnny VR2XMC  寄件人︰ Terry 
 收件人︰ elecraft@mailman.qth.net 
 傳送日期︰ 2015年09月15日 (週二) 7:08 PM
 主題︰ Re: [Elecraft] Elecraft SP3 External Speaker details
   
Just because others are doing it doesn't make it right!

73,
Terry, KQ5U


On 9/14/2015 10:01 PM, Gene Gabry wrote:
>
> Very good point Tony
> http://www.universal-radio.com/catalog/speakers/1696.html
>
> Puts things into perspective :)
>
> 73 Gene N9TF
>
> K3S 10057
>
>> Subject: Re: [Elecraft] Elecraft SP3 External Speaker details
>> Have any of you who are complaining seen the prices of speakers from other
> radio manufacturers?  How about the other third-party speaker makers?
>> Elecraft is in the ballpark.
>> A lot of folks asked (begged, bugged, pestered...) Elecraft to come out
> with a speaker for the line.  They finally relented.  Thank you, Elecraft!
>
>> 73, Tony K4QE
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[Elecraft] Elecraft SP3 External Speaker details

[Johnny Siu]

With my due respect to intellectual right, I would feel this price tag will 
trigger a Chinese variant at 1/3 price with similar appearance but unknown 
quality.
73
Johnny VR2XMC
  寄件人︰ Doug Person via Elecraft 
 收件人︰ elecraft@mailman.qth.net 
 傳送日期︰ 2015年09月15日 (週二) 10:15 AM
 主題︰ Re: [Elecraft] Elecraft SP3 External Speaker details
   
I have to admit that I, too, find $179 for a passive speaker in a metal 
cabinet shockingly expensive.  I was expecting $99.  The price just gets 
a shrug and an "Oh well.." from me.  Not a chance I would spend that 
kind of money on a speaker just because it matches the K-Line.

Doug -- K0DXV

On 9/14/2015 5:42 PM, Mike Reublin NF4L wrote:
> Not even at half that. Maybe it's a misplaced decimal punkt. . . . . .
>
> 73, Mike NF4L
>
>
>> On Sep 14, 2015, at 7:24 PM, mfsj  wrote:
>>
>> OMG OM cheap at twice the price 8>)
>>
>> Fred/N0AZZ
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[Elecraft] K3 to IC-7800 Comparison?

[Johnny Siu]

Hello Adam,
From reading of your NPR chart, could I understand that apart from IC7851, the 
K3 (with new KSYN3A installed) is the second best in terms of NPR test?
73
Johnny VR2XMC
  寄件人︰ Adam Farson 
 收件人︰ Elecraft List  
 傳送日期︰ 2015年09月14日 (週一) 2:51 PM
 主題︰ Re: [Elecraft] K3 to IC-7800 Comparison?
   
For Jim K9YC:

 

Hi Jim,

 

Many thanks for the post on my presentations at the club meeting on Saturday
September 5.

 

To quote:

"There's an important caveat to his work. The NPR measurements require 

very sophisticated band-stop filters in his instrumentation setup, and 

based on the filters he has been able to source, that limits the 

frequency range where he can do his measurements. An example is in the 

footnote for the Flex-6700, which has no preselector for the range where 

he had to do his measurements, which may have caused that radio to 

measure worse than it would on the ham bands."

 

The instrumentation I use for NPR testing is re-purposed telecom test
equipment, as described in my Web article and also in my article in QEX for
March/April 2015. I rely on the surplus market for the test sets, and also
for the filter pairs (bandstop and bandpass). The bandstop filters typically
have 95 dB stopband attenuation and ~ 3 kHz stopband width.

 

A number of these filters are on (or near) amateur bands, e.g. 1940, 3886,
5340, 7600 and 11700 kHz. The first filter pair I acquired was on 5340 kHz,
so all the test data in my web article are on this frequency (which is in
the 60m band). The Flex-6700 does not have a preselector for this band, so
the noise loading will hit the front end and the ADC harder. This will
degrade the NPR reading by a few dB, but it will show how the receiver
behaves if heavily loaded on a band for which no preselector is fitted.

 

As I picked up additional filters, the number of frequencies on which I run
the test has steadily increased. Links to multi-frequency NPR data for
various radios (including the K3 with KSYN3A) are on my website:

 

http://www.ab4oj.com/test/main.html#NPR 

 

It was a pleasure meeting you guys over the Labour Day weekend.

 

73, Adam VA7OJ/AB4OJ


  
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[Elecraft] Product Idea for Elecraft

[Johnny Siu]

If you don't mind less power at 50 W.  Hardrock HR50 with internal ATU could be 
an alternative.
www.hobbypcb.com
73
Johnny VR2XMC  寄件人︰ Don Wilhelm 
 收件人︰ Doug Hensley ; "elecraft@mailman.qth.net" 
 
 傳送日期︰ 2015年09月11日 (週五) 11:08 AM
 主題︰ Re: [Elecraft] Product Idea for Elecraft
   
Doug,

The KAT100 depends on internal signals from the K2 for proper 
operation.  That means that it is a K2 specific tuner and cannot be used 
with other transceivers.  For QRP users, the Elecraft T1 20 watt tuner 
can be used with a variety of transceivers.

73,
Don W3FPR

On 9/10/2015 10:14 PM, Doug Hensley wrote:
> I'm new to Elecraft but I thought the KAT-100 in the EC1 slim line enclosure 
> could be used as a versatile antenna tuner for the different Elecraft 
> transceivers and most 100 watt radios.
> Am I wrong ?
>
>

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[Elecraft] KIO3B

[Johnny Siu]

Yes, Michael, it is a good idea but this does not fit Elecraft's marketing 
strategy.  They want more K3S sales.  They have already been good in keeping 
the promise of let you have the chance to upgrade.
Business is business though I really like your idea.
73
Johnny VR2XMC
  寄件人︰ Michael via Elecraft 
 收件人︰ elecraft@mailman.qth.net 
 傳送日期︰ 2015年09月11日 (週五) 7:27 AM
 主題︰ [Elecraft] KIO3B
   
 
Wouldn’t it be nice if current K3  owners who already have the “older” 
options (KIO3, KSYN, KXV3, KBPF3, etc.)  could get these 
options (newer improved versions) at  a discounted price?  If you add  
these up they are not cheap! 
I myself would like the KIO3B,  KSYN3A, KXV3A, KBPF3A (I think the current 
one can be modified), and have  already spent a lot for the older versions 
(If I would have known I would have  waited on some)! 
Michael 
n2zdb
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[Elecraft] Elecraft K2 7615

[Johnny Siu]

Hello Aaron,
Let me be the naughty boy and speak the otherwise.
I once built a KDSP2 and eventually sold it in return for a KAF2.  I am mostly 
a phone operator and found the artifact from KDSP2 was terrible.  Especially in 
the NR noise reduction, no matter how I adjusted the settings, I was unable to 
find a sweet spot.
I eventually got a KAF2 at the second hand market (say USD45).  It was simple 
but effective in both CW and SSB. It was well worth the money.
My complaint about DSP artifacts also applied to K3.  I am looking forward to 
the improved audio hardware in K3S.
My good hearing up to 12Khz sometimes does give me some trouble in DSP 
artifacts.
73
Johnny VR2XMC
 
  寄件人︰ Mark E. Musick 
 收件人︰ 'Aaron Scott' ; elecraft@mailman.qth.net 
 傳送日期︰ 2015年09月7日 (週一) 1:01 PM
 主題︰ Re: [Elecraft] Elecraft K2 7615
   
Aaron,
I would not toss it.
I just got my K2 serial #5308 back from Don, W3FPR.
I bought it used and had Don to put additional options in it as I have bad
eyesight. It works great. I am very pleased with it.
He did a fantastic job and will work with you to get it right. He will even
build and install the SSB option for you. His prices are very reasonable.
Don is here on the reflector and has a website.
Send him an e-mail and see what you can work out with him.
You've got too much money tied up in the radio to just throw it in the
trash.

73,

Mark Musick, WB9CIF

-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Aaron
Scott
Sent: Sunday, September 6, 2015 5:59 PM
To: elecraft@mailman.qth.net
Subject: [Elecraft] Elecraft K2 7615

I bought the Elecraft K2 # 7615.
I'm just wondering if I could send the unit back and just cut my losses on
it. I have it assembled except for the SSB  Module. For the past couple of
months I have been trying to align the unit. Every single step of the
process has been a battle. I have received help from the Elecraft Email
subscription but I am just tired of fighting with it. I have gone over all
of the solder point and made sure that they are good along with the
components being inserted correctly, I also had electronic engineers go over
it. I just can't get it to work. I can get it to generate a tone for the
tone generator test but that is as far as I can get. I'm at the point that
if I can't get Elecraft to look at it, then I'm just going to dump it in the
trash and sign my thousand bucks that I have invested in it as a loss and
try to save up for another radio. I don't know what else to do. I am really
tired of fighting with it and it has become and object of frustration
instead of a way to communicate with the world.
Please Help

Aaron SCOTT K5ATG
2108 Turner dr
Midwest City, OK 73110

--
'73
Aaron Scott
K5ATG 
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[Elecraft] Elecraft K2 7615

[Johnny Siu]

Hello Aaron,
Just employ a builder to complete the project for you.  They charge you only a 
small fee.  If you are in the Asia Pacific region, you can send it to me to 
have a look.
73
Johnny VR2XMC
  寄件人︰ Aaron Scott 
 收件人︰ elecraft@mailman.qth.net 
 傳送日期︰ 2015年09月7日 (週一) 1:59 AM
 主題︰ [Elecraft] Elecraft K2 7615
   
I bought the Elecraft K2 # 7615.
I'm just wondering if I could send the unit back and just cut my losses on
it. I have it assembled except for the SSB  Module. For the past couple of
months I have been trying to align the unit. Every single step of the
process has been a battle. I have received help from the Elecraft Email
subscription but I am just tired of fighting with it. I have gone over all
of the solder point and made sure that they are good along with the
components being inserted correctly, I also had electronic engineers go
over it. I just can't get it to work. I can get it to generate a tone for
the tone generator test but that is as far as I can get. I'm at the point
that if I can't get Elecraft to look at it, then I'm just going to dump it
in the trash and sign my thousand bucks that I have invested in it as a
loss and try to save up for another radio. I don't know what else to do. I
am really tired of fighting with it and it has become and object of
frustration instead of a way to communicate with the world.
Please Help

Aaron SCOTT K5ATG
2108 Turner dr
Midwest City, OK 73110

-- 
'73
Aaron Scott
K5ATG 
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[Elecraft] Is there a good reason to buy a K3S instead of a used K3 ?

[Johnny Siu]

If I did not have a K3, I would go for the K3S right the way.  I feel the K3S 
holds better value in case I need to sell it in future.  Buying an used K3 and 
then putting in the upgrades seem not much a saving in money terms.
However, I have already had my K3 and will just the do the necessary upgrades 
to suit my operation needs.
73
Johnny VR2XMC
  寄件人︰ Phil Wheeler 
 收件人︰ elecraft@mailman.qth.net 
 傳送日期︰ 2015年07月29日 (週三) 4:09 AM
 主題︰ Re: [Elecraft] Is there a good reason to buy a K3S instead of a used K3 ?
   
I agree completely with what Phil says, both Phils 
:-)

If I were buying today, I'd buy the K3S vs. a used 
K3. I don't get my current K3 on the air enough 
today to motivate me to sell my fine K3 (with the 
new synth board) and buy the K3S.  So I will stand 
pat.

73, Phil W7OX



On 7/28/15 9:14 AM, Phil Hystad wrote:
> I think that all would agree that unless $Money is the big issue in the 
> decision, go for the K3S.  Unless of course there is some reason to want an 
> older model.  Yes, the K3 can be updated with the most important *new* 
> features of the K3S by why do that — unless money is the issue.
>
> Yes, I too am keeping my K3 (and soon be upgrading to the new synth board) 
> but this is only because I have not yet used up my current K3 — you don’t ask 
> for a new slice of pie when there is pie remaining on your plate!
>
> So, if $ is not an issue — buy the K3S.
>
> 73, phil, K7PEH
>
> P.S.  Then again — I am the type of guy to buy a new latest model car (or, in 
> my case, pickup truck) rather than a used when when I go car shopping.
>
>
>
>
>> On Jul 28, 2015, at 8:36 AM, Phil Wheeler  wrote:
>>
>> I'm sure others will weigh in, Jerry, but IMO from a performance standpoint 
>> no -- so long as you have (or add) the new synth board in the pre-owned K3.  
>> Of course, there are the usual used vs. new issues:
>>
>> * No warranty
>> * Potential defects which have arisen in the used K3
>>
>> Now if you work 6 meters or are very fussy about your RX audio, the K3S has 
>> pluses, though most (all?) of those can be addressed by upgrades which are 
>> (or will be) available to the K3.
>>
>> 73, Phil W7OX (I'm keeping my K3!)
>>
>>
>> On 7/28/15 8:02 AM, ae...@carolinaheli.com wrote:
>>> Is there a good reason to get a K3s instead of a preowned K3? I'm returning 
>>> to the hobby and looking hard at the K3S. So much has changed that I'm 
>>> trying to catch up.
>>> Thanks in advance.
>>>
>>>  
>>> Jerry Moore
>>>
>>> AE4PB

  
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[Elecraft] Tuneup, Rescue, or Build your K2, K1, KX1

[Johnny Siu]

Hello,
With due respect to Alan and not having any intention to any business 
competition, if you are in the Asia Pacific region and want to save some 
shipping costs, you may consider contacting me for similar service.
73
Johnny VR2XMC
  寄件人︰ Alan D. Wilcox 
 收件人︰ elecraft@mailman.qth.net 
 傳送日期︰ 2015年07月11日 (週六) 8:04 AM
 主題︰ [Elecraft] Tuneup, Rescue, or Build your K2, K1, KX1
   
Hello,

Have you always wanted an Elecraft? A KX1, K1, K2, K3, whatever? 
Does your K2 need a tuneup?
I build and service them all!

See what my clients have said about my construction and service work at 
http://www.eham.net/reviews/detail/6768

Photos of the popular "Twins" -- the KPA100 and KAT100 in EC2 enclosure --  are 
at
http://wilcoxengineering.com/kpa100-in-ec2/

In addition to tuning your rig, I can also rescue a building project you might 
have started some time ago.

Cheers,
Alan

Alan D. Wilcox, W3DVX (K2-5373, K3-40)
570-478-0736
Williamsport, PA 17701
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[Elecraft] Front panel phone socket - K3

[Johnny Siu]

Hello Don and others,
Thanks for your reply as well as others replied to me off-the-list.
Since there will be a new DSP board later this year, perhaps,I would simply 
wait for the new one to replace the entire board.
73
Johnny VR2XMC
   寄件人︰ Don Wilhelm 
 收件人︰ Johnny Siu ; Elecraft ; 
"elecraft...@yahoogroups.com"  
 傳送日期︰ 2015年06月29日 (週一) 6:33 AM
 主題︰ Re: [Elecraft] Front panel phone socket - K3
   
Johnny,

I suspect some oxidation has formed on the contact areas inside the 
phone jack which are intended to connect/disconnect the speaker.
So yes, I would believe that changing the front panel phone jack will 
fix it.

73,
Don W3FPR

On 6/28/2015 6:45 AM, Johnny Siu wrote:
> Hello Group,
> I have an earlier version of K3 though I keep updating its hardware + 
> firmware to the latest standard.
> Now it develops some problem with the front panel phone socket.  Even after I 
> pull out my headphone jacket, no sound is coming out from the internal 
> loudspeaker.  On the other hand, if I config the menu SPKR+PH to YES, the 
> sound comes out from the internal loudspeaker again.
> Is this indicating a defective front panel phone socket?  Or, is there any 
> other areas I should look into?
> Looking forward to your advice.
>



  
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[Elecraft] Front panel phone socket - K3

[Johnny Siu]

Hello Group,
I have an earlier version of K3 though I keep updating its hardware + firmware 
to the latest standard.
Now it develops some problem with the front panel phone socket.  Even after I 
pull out my headphone jacket, no sound is coming out from the internal 
loudspeaker.  On the other hand, if I config the menu SPKR+PH to YES, the sound 
comes out from the internal loudspeaker again.
Is this indicating a defective front panel phone socket?  Or, is there any 
other areas I should look into?
Looking forward to your advice.
73
Johnny VR2XMC
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[Elecraft] [K3] ideas for re-purposing our old K3 synthesizers

[Johnny Siu]

Well, USD25 for the old synthesizers is good enough for me and I will be happy 
to sell it.
However, I cannot think of any interesting project for it.
73
Johnny VR2XMC
  寄件人︰ inventor61 . 
 收件人︰ elecraft@mailman.qth.net 
 傳送日期︰ 2015年06月25日 (週四) 10:18 AM
 主題︰ [Elecraft] [K3] ideas for re-purposing our old K3 synthesizers
   
I printed out the schematic of the original K3 synthesizer module.  The
diagram says 'rev. A4' and is dated 8 Jan 2010.  Hope that's close to the
as-built!  (probably is)

This gizmo appears to have an output range from 8.7 to 46 MHz.  I don't
know how much sauce it can develop but I have to imagine +10 dBm or so into
50 ohms, I bet it's flat across that range, and it looks like the thing
would be whistle-clean.

To get that, it needs a tight 49.38 MHz reference oscillator (I found a
0.5PPM TCXO for ~$30 from mainland China), and several common DC supply
voltages.

It also needs a small microcontroller or other way of providing the correct
serial peripheral interface command lines and interaction.  That processor
would also control the output frequency, perhaps with an encoder, or
whatever human interface might make sense.

But first, I am trying to see if developing a 'host' PCB would even be
fiscally wise to design and construct.  I mean, who needs a 8.7 to 46 MHz
VFO?

And, how mad would Eric or Wayne be with me about the ... um ...
semi-inverse engineering research ... I'd have to do to make this thing
operate?

On the other hand, I wager there's a thousand-plus of these modules sitting
around the planet looking for something to do.  The capitalist in me is
intrigued.

So, a bit of market investigation here:

a)  what would you do with such a device if you had one?  bench signal
generator?  beacon transmitter?  VFO for another radio?

b)  would you pay, say, $100 for a host board to operate your now-surplus
synthesizer?

c)  if someone *else *needed YOUR spare module for THEIR project, what
would you be willing to sell it to them for?  Free?  $25?  More?

73 es tnx
Steve KZ1X/4



  
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[Elecraft] K3S stainless screws

[Johnny Siu]

Hello Gary,
Yes, I did hear many of you not having any rusting, real mysteries indeed!!
In my case, I live in a high rise apartment about 150m above sea level, 2 km 
away from the Victoria Harbour.  My shack is overlooking the Victoria Harbour.
Summer time is about 33-34c with humidity often over 90%.  The standard screws 
from Elecraft become rusting after 6 months so that I ordered the USD19.95 
stainless steel screws set.  On the contrary, all screws in my Icom radios do 
not show any rusting even after 10 years.
Now that Elecraft does listen to the customers, stainless steel screws are a 
standard (not option) to K3S.  I think it is fair because no one would expect 
an over USD2000 radio does not come with stainless steel screws as standard.
I also do not believe it is Elecraft's idea to squeeze another USD19.95 for 
stainless steel screw set from the customers.
Again, it is a good move for Elecraft, responds to customer's suggestion.
73
Johnny VR2XMC 
   寄件人︰ Gary Smith 
 收件人︰ Elecraft@mailman.qth.net 
 傳送日期︰ 2015年06月18日 (週四) 1:11 AM
 主題︰ Re: [Elecraft] K3S stainless screws
   
FWIW, no rusting here and several of my radials are in salt water on 
a slat marsh on the Atlantic, rig is 350 feet away. No rusting so far 
since 09. 

One of those great mysteries.  ;)

73,

Gary
KA1J

> No rusting here, Johnny, and I live one mile from 
> the Pacific Ocean.
> 
> Phil W7OX
> 
> On 6/17/15 1:35 AM, Johnny Siu wrote:
> > Hello Group,
> > As you are aware, I was the naughty one who always complaint about rusting 
> > screws in K3.  Elecraft now does listen and the K3S is coming with 
> > stainless screws as standard.
> > For a price tag of over USD2000, it was difficult to understand why the 
> > screws in K3 were rusting.
> > Anyway, I am now very pleased that Elecraft does listen to its customers. 
> > Well done !
> > 73
> > Johnny VR2XMC
> 
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[Elecraft] K3S stainless screws

[Johnny Siu]

Hello Kiichiro San,
Yes, I did order the K3SSKT stainless screws set for USD19.95.
My question is why for such an elegant radio of over USD2,000, stainless screws 
did not come as a standard.  I don't believe Elecraft would like to squeeze the 
last bit of merely USD19.95.
Anyway, Elecraft took the customer's feedback and moves to the right direction 
for the K3S.
Congratulations to the K3S owners.
73
Johnny VR2XMC

   寄件人︰ Keith Onishi 
 收件人︰ Elecraft  
 傳送日期︰ 2015年06月17日 (週三) 5:13 PM
 主題︰ Re: [Elecraft] K3S stainless screws
   
Stainless screws are available for K3 as an option. When I ordered a K3 kit, I 
ordered the optional stainless screw kit with them.

Best regards,
Kiichiro Onishi, JH3SIF



2015/06/17 17:35、Johnny Siu  のメッセージ:

> Hello Group,
> As you are aware, I was the naughty one who always complaint about rusting 
> screws in K3.  Elecraft now does listen and the K3S is coming with stainless 
> screws as standard.
> For a price tag of over USD2000, it was difficult to understand why the 
> screws in K3 were rusting.
> Anyway, I am now very pleased that Elecraft does listen to its customers. 
> Well done !
> 73
> Johnny VR2XMC

  
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[Elecraft] K3S stainless screws

[Johnny Siu]

Hello Group,
As you are aware, I was the naughty one who always complaint about rusting 
screws in K3.  Elecraft now does listen and the K3S is coming with stainless 
screws as standard.
For a price tag of over USD2000, it was difficult to understand why the screws 
in K3 were rusting.
Anyway, I am now very pleased that Elecraft does listen to its customers. Well 
done !
73
Johnny VR2XMC
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[Elecraft] k3 switching supply

[Johnny Siu]

I am using an Alinco DM330MVE, very quiet, no RFI
http://www.alinco.com/Products/DM330MVE/
73
Johnny VR2XMC
   寄件人︰ Jim Brown 
 收件人︰ elecraft@mailman.qth.net 
 傳送日期︰ 2015年06月16日 (週二) 1:42 PM
 主題︰ Re: [Elecraft] k3 switching supply
   
On Mon,6/15/2015 10:22 PM, NE9U - Jasper wrote:
> I was about to order a switching supply for portable/dxpedition use and 
> thought the one on elecraft site must be a good one, but i see it is getting 
> poor reviews on eham.net for RFI/noise generation issues.

I had one of these that i used for several years until I blew it up (by 
mis-treating it).

Note, however, that most of us have varying levels of RF noise in our 
environments, and many of us connect equipment together poorly. Whether 
or not you hear noise from a particular product will depend on how much 
noise is in your environment, how close your antennas are to the noisy 
equipment, the frequencies on which you listen, and how you have 
interconnected things together.

I probe for RF noise using a Kenwood TH-F6A talkie in close proximity to 
the equipment and its wiring. I found the PowerWerx unit RF-quiet, and I 
plan to buy a replacement for it.

73, Jim K9YC



  
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[Elecraft] ] K3 VFO Tuning Noise

[Johnny Siu]

I do not have tuning noise except a number of internal birdies in 10m band.  
Moving the cables around the KSYN3A area will minimize the birdies.
My K3 is an earlier model.  I remember I did the tuning noise modification some 
years ago.
73
Johnny VR2XMC
  寄件人︰ Amateur Radio Operator N5GE 
 收件人︰ "George Winship, NC5G"  
副本(CC)︰ elecraft@mailman.qth.net 
 傳送日期︰ 2015年06月15日 (週一) 8:55 AM
 主題︰ Re: [Elecraft] K3 VFO Tuning Noise
   

I have no birdies on 6m K3 1055.





On Sun, 14 Jun 2015 14:50:42 -0700 (MST), you wrote:

>
><  This morning, tuning one of the rigs across a dead 
>< 6 Meter band, I can hear a weak increase in white noise whenever 
>< I turn the VFO knob.  
>
>Dave,
>
>I don't have a K3, but check to see if the NB is turned on on that K3. I
>notice the same thing on my KX3 when The NB is turned on.
>
>73, George NC5G

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[Elecraft] OT-FS; KFL3B-FM filter in box

[Johnny Siu]

 Hello Group,
I find myself does not operate FM. Therefore, this KFL3B-FM (still in box) is 
surplus to my requirement.
I like to sell it at USD119 including shipping by registered airmail to CONUS, 
major cities in Europe and Australia.
If you are interested, please reply off-the-list to vr2xmc at yahoo dot com dot 
hk
Thanks for the bandwidth here and apologies for the QRM.
73
Johnny VR2XMC
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[Elecraft] KPA-500 modifications

[Johnny Siu]

Thanks Arie.
  寄件人︰ Arie Kleingeld PA3A 
 收件人︰ elecraft@mailman.qth.net; Johnny Siu  
 傳送日期︰ 2015年06月10日 (週三) 3:54 PM
 主題︰ Re: [Elecraft] KPA-500 modifications
   
Johnny,

I have done that mod.

Reason was that my KPA500 had high SWR at the input and barely any gain. 
Tracked the problem down to the TR circuit. One of the switching Fet's 
(that switch the TR PIN-diodes) had died.
It proved to be an error that happened before, because for a lousy 12 
bucks I got all needed parts for a replacement in a mod-package from 
Elecraft. Coming with it were two C's to replace in the 12m LPF.  I 
replaced them in the same go.

Now all is well!


73
Arie PA3A


Johnny Siu schreef op 10-6-2015 om 0:46:
> Does anyone have the any idea about the 'Factory upgraded w/ T/R circuit plus 
> 12-meter low pass filter mod'  mentioned in the advert. below?
> 73
> Johnny VR2XMC
>        寄件人︰ H. Cary 
>  收件人︰ elecraft@mailman.qth.net
>  傳送日期︰ 2015年06月10日 (週三) 4:15 AM
>  主題︰ [Elecraft] KPA-500 FOR SALE
>    
> For Sale: Elecraft KPA-500, serial # 0698, solid state linear amplifier, 
> covers 160-6 meters.
> Factory upgraded w/ T/R circuit plus 12-meter low pass filter mod on June 1, 
> 2015.
> Amplifier "meets or exceeds all factory specifications."
> $1750 shipped CONUS.  Please contact direct: h3c...@gmail.com
> Cary, K4TM
>
>
>
>
>    
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[Elecraft] KPA-500 modifications

[Johnny Siu]

Does anyone have the any idea about the 'Factory upgraded w/ T/R circuit plus 
12-meter low pass filter mod'  mentioned in the advert. below?
73
Johnny VR2XMC
  寄件人︰ H. Cary 
 收件人︰ elecraft@mailman.qth.net 
 傳送日期︰ 2015年06月10日 (週三) 4:15 AM
 主題︰ [Elecraft] KPA-500 FOR SALE
   
For Sale: Elecraft KPA-500, serial # 0698, solid state linear amplifier, covers 
160-6 meters.
Factory upgraded w/ T/R circuit plus 12-meter low pass filter mod on June 1, 
2015.
Amplifier "meets or exceeds all factory specifications."
$1750 shipped CONUS.  Please contact direct: h3c...@gmail.com
Cary, K4TM




  
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[Elecraft] OT- For sale : Extra 6, 50Mhz RX contest pre-amplifier

[Johnny Siu]

Hello Group,
It is off-topic.
This RX contest pre-amplifier is surplus to my requirement.  It was bought in 
2013 from www.ha8et.hu It is fully functional.  Noise figure <0.6dB (typ. 
0.5dB) Gain 14-20dB adjustable.
My price is USD55 including shipping by registered airmail.  If interested, 
please email me off-the-list.  I apologize for the QRM here.
73
Johnny VR2XMC

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[Elecraft] Price of K3 before K3S

[Johnny Siu]

Can any of you advise what was the previous price for K3/10 kit and assembled?
I notice a price increase in KSYN3A upgrade kit from $190 to $220

73
Johnny VR2XMC
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[Elecraft] Using KX3 in DMR or other digital voice mode

[Johnny Siu]

There is I/Q output from KX3 and a 2m transverter as well.  Can KX3 be operated 
in digital voice mode such as DMR or D star with the help of decoding software 
in PC?
Digital voice mode becomes popular in V or U.
Any ideas?
73
Johnny VR2XMC
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[Elecraft] K3 New Synth boards in Eu?

[Johnny Siu]

Hello Dominic,
To my curiosity, if the KSYNA board were declared as second hand used 
electronic parts, would this also attract VAT?
If the answer is negative, you can then ask a friend in US to buy and send it 
you which is theoretically second hand product.
73
Johnny VR2XMC
  寄件人︰ Dominic Baines 
 收件人︰ elecraft@mailman.qth.net 
 傳送日期︰ 2015年05月5日 (週二) 3:43 PM
 主題︰ Re: [Elecraft] K3 New Synth boards in Eu?
   
Remember VAT (in UK) is charged on the value PLUS the postage costs so 
if you paid for an expensive shipping  option you get bitten twice!

There is a low threshold below which no extra costs.

The extra costs on a load of Elecraft kit a couple years back (for me 
and a couple others) when $/£ was good too was cheap enough to push the 
equation to being able to pay for the Dayton air fare just to collect 
the kit and pay the OHIO sales tax.

There is qrpproject.de for Elecraft kit in EU along with lots of other 
vendors but not always cheaper but you need to add in the exchange rate 
and postage if trying to compare prices.

72

Dom
M1KTA



On 05/05/15 08:08, Dave G3WGN M6O wrote:
> Deni, that charge sounds like the expected VAT - which is charged on the
> boards and shipping cost.  In the UK we also have to pay Parcelfarce up to
> 18 quid admin fee for doing the customs clearance.
> In the UK amateur radio items do not attract customs duty, not sure if that
> is also true in France, but I believe it to be an EU-wide rule - but it may
> not always be applied correctly.
> So I think your charge is only (!) VAT and maybe a clearance charge.
> Unavoidable, mate!
> 73 David currently F/G3WGN (Dept 81)

  
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[Elecraft] KPA500 - Full Power Keydown

[Johnny Siu]

Thanks, Jim and all the elecrafters responded to my question about using KPA500 
under full power in RTTY contest.
Some of the answers came to me under private emails off the list.  I would like 
to thank them as well.
From all the responses, KPA500 is a solid performer under full power in all 
modes including those high duty cycle.
I mostly operate SSB so that I do not have much chances to operate KPA500 under 
high duty cycle.  Hence, I put up my question in this email listing.
73
Johnny VR2XMC
   寄件人︰ Jim Brown 
 收件人︰ elecraft@mailman.qth.net 
 傳送日期︰ 2015年04月26日 (週日) 5:02 AM
 主題︰ Re: [Elecraft] KPA500 - Full Power Keydown
   
On Sat,4/25/2015 11:21 AM, Kevin Stover wrote:
> All of this anecdotal eveidence is interesting but meaningless.

Is it?  The original post asked who had actually used the KPA500 that 
way. He got several responses, including mine.

> Elecratf advertise and rate the amp as a 500W amp. Not 600, not 700.

I stated my experience. The difference between 500W and 600W is 0.8 dB. 
The difference between 500W and 650W is 1.1 dB.

Early versions of K3 firmware allowed it to cranked to 120 W. That was 
reduced to 110 W to place an upper limit on IMD.

> Someone should put the amp on an spectrum analyser while running at 700 wats 
> to see whatr it looks like while being overdriven.

You can bet that Elecraft did that throughout the design process, and 
probably in final test of the power modules. I know the guy who did that 
testing. :)  I've done it myself. It remains clean at the highest power 
I can get out of it, which varies a bit depending on the load Z between 
600W and 700W.  I've published a link to those measurements several 
times on this reflector.
k9yc.com/P3_Spectrum_Measurements.pdf and
k9yc.com/FTDX5000_Report.pdf

The highest power in these reports is 550W, but I've measured up to 650W 
and the sidebands get slightly wider (5-10%) and a few dB stronger.

> Elecraft have also said, in the operating manual, that the time limnit is 10 
> minutes key down. Did they put that line in the manual just to take up space 
> or is it purely CYA?

That's a reasonable spec based on my observations with a thousand or 
more hours of use.

>
> Jusdt because some people are overdriving the amp and getting away with it 
> doesn't mean it was designed for it.

It's pretty difficult to overdrive the KPA500 -- if you supply more 
drive than it wants, it will insert an attenuator between the input 
connector and the power amp stage to keep the power within design 
parameters. Protection circuitry in the K3, KX3, KPA500, and KAT500 is 
set to prevent destructive overheating and keep the signal clean.

On Sat,4/25/2015 12:04 PM, Harry Yingst via Elecraft wrote:
> I'm looking for people who actually run it at 500 watts in SSTV, or other 
> like modes (not voice) A SSTV picture can take 110 seconds

If it will do 500W keydown for 10 minutes, it will do 110 seconds for 
SSTV. :)

73, Jim K9YC




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[Elecraft] AF1- active audio filter

[Johnny Siu]

    Hello Elecrafters,
I have just finished the construction of the AF1 for a local radio club.
AF1 works very well.  However, when using my K3 to TX, the AF1 picked up the RF 
energy and I can hear my voice in my earphone.  I must admit that the antenna 
is near to my shack but no RF feedback for any other accessories.
In the circumstances, will this problem be solved if I put the AF1 in a metal 
enclosure?
Have any of you come across the same?  The AF1 does not improve the chance of 
picking up signals but lessen the listening fatigue.
TNX & 73
Johnny VR2XMC

  
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[Elecraft] Internal Battery Alternavives for KX1 ??

[Johnny Siu]

Yes, correct.  All these AA LiPo should not be charged inside the radio.  I am 
charging them externally with intelligent charger.  Never do the charging 
without any attendance.
73
Johnny VR2XMC
   寄件人︰ robert.hair 
 收件人︰ Johnny Siu ; J ; 
elecraft@mailman.qth.net 
 傳送日期︰ 2015年04月9日 (週四) 9:04 AM
 主題︰ Re: [Elecraft] Internal Battery Alternavives for KX1 ??
   
Be very careful to charge Lipo batteries only with a charger specifically 
designed for that type of battery, unless you don't value your K1 or your 
home!!!

- Original Message - 
From: "Johnny Siu" 
To: "J" ; 
Sent: Wednesday, April 08, 2015 8:49 PM
Subject: [Elecraft] Internal Battery Alternavives for KX1 ??


> Hello Jay,
> There is a LiPo 3.7v AA size available. Therefore, 3.7 x 3 = 11.1v in 
> parallel using the supplied battery holder but re-work the wiring between 
> the two holders could be a solution. This kind of battery will go up to 
> 4.2v when it is fully charged so that the max voltage generated = 4.2v x 3 
> = 12.6v and still within the tolerance.
> If your KX1 is with KX3080, then it would be a bit tricky in getting the 
> max power from the radio.
> 73
> Johnny VR2XMC
>      寄件人︰ J 
> 收件人︰ elecraft@mailman.qth.net
> 傳送日期︰ 2015年04月9日 (週四) 8:18 AM
> 主題︰ [Elecraft] Internal Battery Alternavives for KX1 ??
>
> I'm considering ways to increase transmitter power, by making changes to 
> the
> internal batteries in the KX1.
>
> I've seen a mod which added batteries. and a lot of other boards and
> dangles.
>
> In another mod, the owner just fabricated a larger KX1 chassis bottom and
> changed battery holders to obtain 14V.
>
>
>
> How about using six AA-size, 2.3 to 2.4 V batteries (if such things exist)
> and the existing battery holders in the KX1?
>
>
> Thoughts?
>
>
>
> 73
>
> Jay
>
> W6CJ
>
>
>
>
>
>
>
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[Elecraft] Internal Battery Alternavives for KX1 ??

[Johnny Siu]

Hello Jay,
There is a LiPo 3.7v AA size available.  Therefore, 3.7 x 3 = 11.1v in parallel 
using the supplied battery holder but re-work the wiring between the two 
holders could be a solution.  This kind of battery will go up to 4.2v when it 
is fully charged so that the max voltage generated = 4.2v x 3 = 12.6v and still 
within the tolerance.
If your KX1 is with KX3080, then it would be a bit tricky in getting the max 
power from the radio.
73
Johnny VR2XMC
   寄件人︰ J 
 收件人︰ elecraft@mailman.qth.net 
 傳送日期︰ 2015年04月9日 (週四) 8:18 AM
 主題︰ [Elecraft] Internal Battery Alternavives for KX1 ??
   
I'm considering ways to increase transmitter power, by making changes to the
internal batteries in the KX1.  

I've seen a mod which added batteries. and a lot of other boards and
dangles.  

In another mod, the owner just fabricated a larger KX1 chassis bottom and
changed battery holders to obtain 14V. 

 

How about using six AA-size, 2.3 to 2.4 V batteries (if such things exist)
and the existing battery holders in the KX1?

 
Thoughts?

 

73

Jay

W6CJ

 

 

 

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[Elecraft] ] Is there a K4 on the horizon?

[Johnny Siu]

Hello Scott,
Tesla is also doing in this way, keep their electric vehicle updated.  I like 
Elecraft's idea towards their model and I went through the whole process from 
IC756 to IC7800.
73
Johnny VR2XMC
   寄件人︰ Scott Manthe 
 收件人︰ elecraft@mailman.qth.net 
 傳送日期︰ 2015年04月1日 (週三) 11:37 AM
 主題︰ Re: [Elecraft] Is there a K4 on the horizon?
   
Wayne and Eric have repeatedly said that the K3 will be upgradeable to 
the K4. Part of the reason that we keep seeing these kinds of "Where's 
the K4" posts is that people are conditioned by the "big 3" to expect a 
"new" rig every year or two to get the latest and greatest features and 
performance. Eric and Wayne give us Elecrafters an ongoing stream of 
upgrades and let us chose what we need based on how we operate. This is 
why I rarely look at new rigs any more at Dayton. I'm not going to buy 
into the IC756/IC765Pro/ProII/ProIII upgrade path any longer. There is 
no K3/K3Pro/K3ProII. There is just the continual improvement of a 
terrific rig. I'm not going to spend $5100 on the FTDX5000/D/MP/LT just 
to have to buy the FTDX5100/D/MP/LT in a year at $5700 to get the 
upgraded performance. My K3 is constantly upgraded at a reasonalbe cost, 
and I can decide whether or not I want or need the upgrade.

It's not Elecrafters who are drinking the "Kool Aide," it's those people 
who EXPECT to have to spend more money every couple of years to get 
performance upgrades who are guzzling Kool Aide day and night. Stop 
asking for the K4. You've already got it.

73,
Scott, N9AA




On 3/31/15 11:11 PM, Jim Miller wrote:
> Exactly, I had my response written then erased it.  We are seeing the K4 as
> every improvement comes along to our already excellent radio.  Think about
> all the advancements since you got your K3 (OK, since I got mine sn 14xx).
> Remember those that were prompted by users like the expansion of the macro
> buffer among others.  How many other companies would do that? ZERO.  Your
> radio continues to just get better.  I, for one, am glad they are doing it
> as they are instead of saving all the improvements for a new radio that I
> would have to buy to get them.
>
> Thanks again Elecraft,
> 73, Jim KG0KP
>
>

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[Elecraft] 50 Ohm Load - source?

[Johnny Siu]

Very well said, don.
If ham does not need a new dummy load, there are a lot nice ones available in 
the used market at a very reasonable price.
Nowadays, frequency counter, RF watt meter and DMM are all available at a much 
affordable price.  Even a temperature controlled soldering iron is not 
expensive.  All those items were totally out of the question when I started my 
hobby at the age of 12.
Let us enjoy our hobby in a much affordable way now.
73
Johnny VR2XMC
   寄件人︰ Don Wilhelm 
 收件人︰ elecraft@mailman.qth.net 
 傳送日期︰ 2015年03月31日 (週二) 12:06 PM
 主題︰ Re: [Elecraft] 50 Ohm Load - source?
   
I think that attitude spells the difference between "appliance 
operators" and those who are willing to check out, and otherwise examine 
their ham gear.  How many "transceiver" problems turn out to be problems 
with the antenna system?  The number is larger than many are willing to 
admit.

In the long past, every ham had at least a few test tools - dummy load 
(even if it was a light bulb), and means of measuring RF and SWR (even 
if it was a pair of #47 lightbulbs on a piece of 300 ohm twinlead) - and 
that gear was used to determine if the transmitter was capable of 
producing power and if the antenna system was capable of accepting the 
RF power.

There were times when precise and accurate measurement gear was outside 
the budget of most hams, so we used substitute methods that gave us some 
indication that our transmitters and antennas were performing OK.

Today, reasonably good dummy loads and wattmeters are well within the 
budget of the typical ham.  When we are willing to spend $1000 or more 
on a transceiver, I find it foolish economy to decline to spend $100 for 
a few pieces of test gear to assure ourselves that that $1000+ 
transceiver is running properly.  It seems some hams would rather 'send 
it back to the factory for a checkout' than to make some simple 
measurements in the shack - the cost of that trip to the factory will 
exceed the cost of the equipment required to do simple testing of the 
equipment in place.

It does seem like false 'economy' to me, but I know there are some who 
will do just that.
And - when the transceiver returns with "no trouble found" because the 
problem was actually in the antenna system, that is not helpful.  The 
cause of the problem could have been identified if a dummy load and a 
wattmeter had been available and willing to be used for some simple 
tests.  The precision of the dummy load and wattmeter need not be 
extreme for tests of this sort - even gear with a 20% or greater error 
can give clues to the cause of failure in cases like that.

Yes, I now have precision dummy loads and wattmeters whose calibration 
is NIST tracable, but I use those for precision measurements.  To do a 
'sanity check' of where the problem may be does not require anything 
near that precision or accuracy.

As I have stated in the past, every hamshack should have a dummy load 
capable of handling the maximum output of that station.  It need not be 
exactly 50 ohms non-reactive (unless it is being used for calibration), 
but it should be a part of the diagnostic tools available in every hamshack.

73,
Don W3FPR

On 3/30/2015 5:43 PM, Dave Baxter wrote:
> I often wonder about people who will buy expensive (but excellent) radio's,
> then baulk at spending a few bucks, quid's or ?, on basic test kit like a
> half decent dummy load!
>
> Am I missing something?
>
>

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[Elecraft] Looking for a KPA500 Schematic

[Johnny Siu]

Hello Scott,
I suggest we should also put in a suggestion "Contact supp...@elecraft.com "

Shipping of the entire amplifier could be expensive.  The merit of elecraft 
products are their module design which is very good for overseas user.  I 
simply ship back the defective module instead of the whole machine.
Perhaps, elecraft support could give a schematic to the interested kpa500 
owners.
73
Johnny VR2XMC   寄件人︰ Scott Manthe 
 收件人︰ elecraft@mailman.qth.net 
 傳送日期︰ 2015年03月29日 (週日) 8:37 AM
 主題︰ Re: [Elecraft] Looking for a KPA500 Schematic
   
Apparently there is some misunderstanding regarding my comment (Or 
people are responding without reading the entire message closely...). I 
was NOT responding to the original poster. I was responding to the 
second commenter, who said that he needed a schematic because his NEW 
KPA500 had failed. My point was that rather than risk further damaging a 
NEW, still under warranty KPA500, why not simply let Elecraft fix it. 
I'm not sure why it's "unbelievable" that I'd send my NEW amp to 
Elecraft for repair, but to each his or her own.

I wasn't suggesting that no one needs a schematic, just that it probably 
wasn't the most necessary in that particular situation, where a piece of 
gear was NEW and under warranty. A supplied schematic would be nice, 
especially given that the skill level of the average Elecrafter might be 
somewhat higher than the average ham.

73,
Scott, N9AA




On 3/27/15 10:53 PM, Wes (N7WS) wrote:
> Unbelievable.
>
> On 3/27/2015 10:40 AM, Scott Manthe wrote:
>> Why would you want a schematic? If it's new, Elecraft will fix it 
>> free. I'm all for being able to troubleshoot my gear, but if I buy 
>> something new and it fails within the warranty period, I'm not going 
>> to waste my time trying to fix it, the manufacturer will.
>>
>> 73,
>> Scott, N9AA

  
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[Elecraft] Looking for a KPA500 Schematic

[Johnny Siu]

Bill,
You are correct.  The schematics should simply be available for download in the 
elecraft official website.
73
Johnny VR2XMC
   寄件人︰ Bill 
 收件人︰ elecraft@mailman.qth.net 
 傳送日期︰ 2015年03月28日 (週六) 3:45 AM
 主題︰ Re: [Elecraft] Looking for a KPA500 Schematic
   
A simple enough request - yet such nasty and unhelpful responses. Are 
they really necessary?

And, yes.. schematics should be available for ALL ham equipment. In 
fact, they should accompany all ham equipment when purchased.

Bill W2BLC K-Line

  
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[Elecraft] Don't have a 50W dummy load

[Johnny Siu]

Hello Tony,
As suggested by Don W3FPR, you do need a proper 100W dummy load for long run.  
Dummy load is  not expensive especially in the used market.  There are still 
plenty of left-over from the  paging industry.  My dummy load is a waste 
product dismantled from a paging station.
Finish the TX gain calibration first and look for a proper dummy load later.
73
Johnny VR2XMC
   寄件人︰ Tony Estep 
 收件人︰ Elecraft  
 傳送日期︰ 2015年03月25日 (週三) 9:28 AM
 主題︰ Re: [Elecraft] Don't have a 50W dummy load
   
For those who may be wondering, I received some off-line emails which
actually tried to answer my question. The winner was the suggestion that I
rubber-band my little resistor array (which is actually good for 10W, not
5W as I said before) to a baggie filled with ice. Thanks to all who
provided constructive responses!

Tony KT0NY




>
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[Elecraft] WTB: K2 options

[Johnny Siu]

 Hello Group,
I am looking for a KNB2 noise blanker for an aged K2 in the used market.  
Shipping is easy by using padded envelope.  If you have one for sale, please 
contact me off-the-list vr2xmc at yahoo dot com dot hk
73
Johnny VR2XMC
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[Elecraft] RF gain calibration - K3 Utilities

[Johnny Siu]

 Hello Elecrafters,
In the K3 utilities, there is a calibration for RF gain.  Do I need to do it 
per band? Or just do one calibration at 40m?
I now have a SARK-110 antenna analyzer / single generator so that I can do per 
band calibration if necessary.
Any advice?
73
Johnny VR2XMC
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[Elecraft] KX-1 80M Question

[Johnny Siu]

Apart from the issue about whether 80M is used, the construction of the KXB3080 
is a bit tricky.  The new LPF1 will lead to lower power output of the radio.
I mentioned this in this mail listing in the past and put it in my review in :
http://www.eham.net/reviews/detail/3586

73
Johnny VR2XMC
  寄件人︰ Phil Wheeler 
 收件人︰ elecraft@mailman.qth.net 
 傳送日期︰ 2015年03月17日 (週二) 3:18 AM
 主題︰ Re: [Elecraft] KX-1 80M Question
   


Jay,

I agree with Phil (the other Phil below!).  My 
first KX1, built in 2003 or 2004, had 20/30/40. My 
current one has all four bands. 80 m has never 
seemed a great QRP band for me, mainly due to the 
antenna issues.

The KXAT1 *will* tune 80 m; there may be a mod you 
do to it while adding the 3080 module to make that 
feasible, not sure but the 3080 module 
instructions should tell you.

Another plus of adding 3080 is in receiving 80 m 
and other non-ham frequencies, if you use the KX1 
that way.

Personally, if you have a KX1 with the original 30 
meter module added I see no great benefit in 
adding the 3080 option in place of the 30 m module 
-- unless you have special interest in operating 


80 meters.

73, Phil W7OX


   

  
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[Elecraft] Noise Power Ratio and the K3 with new synthesizer?

[Johnny Siu]

Thanks Joe for the highlights.  Should I pass this to Adam and give him a 
chance to explain?
73
Johnny VR2XMC
  寄件人︰ "Joe Subich, W4TV" 
 收件人︰ elecraft@mailman.qth.net 
 傳送日期︰ 2015年03月13日 (週五) 10:09 AM
 主題︰ Re: [Elecraft] Noise Power Ratio and the K3 with new synthesizer?
   

> Anyway, just let us read both Rob Sherwood and Adam's test data and
> use them as a cross reference to each other.

The issue is that Adam's data is flawed in at least two ways.  The
notch is wider than the SSB filter which means the noise is not being
applied to the product detector or DSP ADC.  Second by reducing the
noise level for DDC receivers, they are not being fairly tested for
the same level of total noise power.  There are also questions about
the effects of roofing filters of different bandwidth - to what degree
do they change the total noise power applied to the entire receiver
chain (including the product detector or DSP ADC)?  Secondly, what are
the effects of AGC ahead of the product detector/DSP ADC and does the
noise power testing really measure dynamic range or is MDS compromised
by the AGC?

With a 3.3 KHz notch, the only way Adam can fairly test receivers is
with a 6 or 15 KHz roofing filter.  If he truly expects to test SSB
performance, the notch width needs to be less than half the width of
the SSB filter.  Secondly, receiver MDS needs to be measured with the
noise present to rule out AGC desensitization.

BTW, Adam's MDS measurements for the two K3s he tested are off by
6 to 9 dB compared to both Sherwood and ARRL Labs while his MDS
values for Icom are within 2 dB of ARRL Labs.  There is something very
unequal about the testing of the K3.

73,

    ... Joe, W4TV


On 2015-03-12 9:26 PM, Johnny Siu wrote:
> Hello Scott,
> I am afraid I do not agree to your comments.  I am a owner of both Icom and 
> entire K-line, I understand what Adam AB4OJ is doing.  Adam knows the design 
> and structure of K3 no worse than any radio expert here (or at least far 
> better than me).
> Anyway, just let us read both Rob Sherwood and Adam's test data and use them 
> as a cross reference to each other.  I don't mind reading articles from 
> different angles.
> While there are many CW guru here, voice mode is still the most popular mode 
> across the HF users.  Some tests under voice mode conditions do give another 
> view.
> I think we just keep our fingers crossed and see what are the results for 
> IC7851 and K3 new synthesizer model perform in both Adam and Sherwood test.
> By the way, both Rob and Adam know each other and do have the chance to 
> communicate.
> 73
> Johnny VR2XMC
>
>        寄件人︰ Scott Manthe 
>  收件人︰ elecraft@mailman.qth.net
>  傳送日期︰ 2015年03月13日 (週五) 2:08 AM
>  主題︰ Re: [Elecraft] Noise Power Ratio and the K3 with new synthesizer?
>
> I suspect that the "Noise Power Ratio" test was used because that is the
> only test that Adam could use to get his beloved Icom gear near the top
> of the list. Mr. Farson has had a website devoted to Icom gear for many
> years, so I'm not sure if this test could be considered even remotely
> objective.
>
> Here is a NPR tutorial from another source, for those interested and
> technically proficient enough to investigate further.
>
> 73,
> Scott, N9AA
>
>
>
> On 3/12/15 10:53 AM, Chip Stratton wrote:
>> Adam Farson VA7OJ has an article in the current March/April 2015 QEX
>> discussing the use of Noise Power Ratio (NPR) to help define a
>> receiver's performance in a crowded band in a way that might be more
>> illuminating than the simpler two tone tests. Its an interesting
>> discussion which makes some sense, but then I'm not anywhere close to
>> an expert in that field.
>>
>> In any event, he has figures from a number of transceivers, including
>> a couple of K3s which no doubt do not have the new synthesizer. The
>> K3s still performed very well relative the the rest of the field in
>> these tests, though they were slightly behind the IC-7700, IC-7800,
>> and TS-590S.
>>
>> Which of course makes me wonder how the K3 with new synthesizer would
>> perform in this arena?
>>
>> >From a guy with a mild metrology addiction...
>> Chip
>> AE5KA
>>
>
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[Elecraft] Noise Power Ratio and the K3 with new synthesizer?

[Johnny Siu]

Hello Scott,
I am afraid I do not agree to your comments.  I am a owner of both Icom and 
entire K-line, I understand what Adam AB4OJ is doing.  Adam knows the design 
and structure of K3 no worse than any radio expert here (or at least far better 
than me).
Anyway, just let us read both Rob Sherwood and Adam's test data and use them as 
a cross reference to each other.  I don't mind reading articles from different 
angles.
While there are many CW guru here, voice mode is still the most popular mode 
across the HF users.  Some tests under voice mode conditions do give another 
view.
I think we just keep our fingers crossed and see what are the results for 
IC7851 and K3 new synthesizer model perform in both Adam and Sherwood test.
By the way, both Rob and Adam know each other and do have the chance to 
communicate.
73
Johnny VR2XMC

  寄件人︰ Scott Manthe 
 收件人︰ elecraft@mailman.qth.net 
 傳送日期︰ 2015年03月13日 (週五) 2:08 AM
 主題︰ Re: [Elecraft] Noise Power Ratio and the K3 with new synthesizer?
   
I suspect that the "Noise Power Ratio" test was used because that is the 
only test that Adam could use to get his beloved Icom gear near the top 
of the list. Mr. Farson has had a website devoted to Icom gear for many 
years, so I'm not sure if this test could be considered even remotely 
objective.

Here is a NPR tutorial from another source, for those interested and 
technically proficient enough to investigate further.

73,
Scott, N9AA



On 3/12/15 10:53 AM, Chip Stratton wrote:
> Adam Farson VA7OJ has an article in the current March/April 2015 QEX
> discussing the use of Noise Power Ratio (NPR) to help define a
> receiver's performance in a crowded band in a way that might be more
> illuminating than the simpler two tone tests. Its an interesting
> discussion which makes some sense, but then I'm not anywhere close to
> an expert in that field.
>
> In any event, he has figures from a number of transceivers, including
> a couple of K3s which no doubt do not have the new synthesizer. The
> K3s still performed very well relative the the rest of the field in
> these tests, though they were slightly behind the IC-7700, IC-7800,
> and TS-590S.
>
> Which of course makes me wonder how the K3 with new synthesizer would
> perform in this arena?
>
> >From a guy with a mild metrology addiction...
> Chip
> AE5KA
>

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[Elecraft] Contemplating Purchase of K3

[Johnny Siu]

If you have already had the KX3 for portable use, then internal KAT3 may not be 
necessary.  All depends on your operation style.
73
Johnny VR2XMC
  寄件人︰ Ian - Ham 
 收件人︰ 'Richard Gillingham' ; elecraft@mailman.qth.net 
 傳送日期︰ 2015年03月8日 (週日) 3:10 AM
 主題︰ Re: [Elecraft] Contemplating Purchase of K3
   
I would still consider adding the 100W internal ATU for a couple of reasons.  
If your KAT500 goes out and you have to send it back to the mother ship for 
repair, you'll still be able to use any antenna you want.  You won't be forced 
into finding resonant antennas for the bands you want to operate.  Also, it 
will be much easier to operate portable (I know, you have the KX3 :-) ) if you 
ever want to do so.  And, the K3 is a great rig for operating portable if you 
want more juice than the KX3 offers. Just ask anyone who's been on the recent 
DXpeditions that used the K-Line.

Hope this is helpful.

73 de,

--Ian
Ian Kahn, KM4IK
Roswell, GA  EM74ua
km4ik@gmail.com
10-10 #74624, North Georgia Chapter #2038
PODXS 070 #1962
K3# 281, P3 #688, KAT500 #860, KPA500 #1468

-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Richard 
Gillingham
Sent: Saturday, March 7, 2015 11:42 AM
To: elecraft@mailman.qth.net
Subject: [Elecraft] Contemplating Purchase of K3

I’m thinking about purchasing the K3-100 kit.  I plan start with the minimum 
configuration and adding features as I get the $$..  I already have the KX3, 
PX3 and am using the KPA500 and KAT500 with my Icom 756 Pro II.  


I’ll assume I won’t need the internal atu with the K3, and will add the P3 and 
IF out board when the time comes.  I’ll get the interface cable to the KAT500…  
With this bare bones K3, is there anything else that you all might feel is 
indispensable?


73 to all and good DX

Gil, W1RG






Sent from Windows Mail
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[Elecraft] FS: Rigol DSA815-TG Tracking Generator Spectrum Analyzer

[Johnny Siu]

Hello Elecrafters,
About two years ago, I bought this Spectrum Analyzer with a view to doing some 
RF projects.  Eventually, I did not have the time and have left this unit 
packed and unused.
This analyzer was only turned on a few times to checkfunctionality.  It comes 
with alloriginal accessories, certificates, unit is as new.  Works from kHz 
~GHz, it is great for tuning antennas, filters, duplexers etc.  For details, 
please visit Rigol official website
http://www.rigol.com/prodserv/DSA815/ 


High resolution pictures are available upon request.  I am looking for a price 
of USD1,195 and the shipping costs from Hong Kong to major cities are to my 
account.  If you are interested, please contact me off-the-list at vr2xmc at 
yahoo dot com dot hk
73
Johnny VR2XMC
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[Elecraft] OT: the cheapest way to build a six meter beacon

[Johnny Siu]

 Hello Elecrafters,
The VR2SIX 6m beacon has been down for some time because the gears have been 
used over 20 years and beyond repair.  Local radio club (HARTS) is finding a 
way to build up a 6m beacon again but with very limited funds.  The beacon 
requirement could be a simple 5W transmitter sending out CWID of VR2SIX.
If you are aware of any useful information, please send me the relevant web 
link or sources of information.
Thanks for your help in advance and please reply off-the-list.
73
Johnny VR2XMC



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