date:20110627

Re: [Elecraft] Flying with K2

2011-06-27 Thread Fred Townsend

David, I find the results of your research strange. Lithium batteries are
several orders of magnitude more dangerous than SLA. They catch fire and
water and ordinary fire extinguishers don't work on Lithium! Please see
http://www.bobatkins.com/photography/li_battery_restrictions.html for TSA
restrictions and comments on lithium batteries. Of course things always
appear different when viewed from the western side of the pond.
I am wondering if the restrictions on SLA batteries are based upon ROHS
restrictions on the importation of lead. Seems like lead is still ok for car
batteries but not for car wheel balancing. Which is the greater hazard?

One bonus of lithium is its much greater energy per pound/kg than lead.
Something you really appreciate when racing through airports. 

73,
de  Fred, AE6QL

-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Thomas Horsten
Sent: Saturday, June 25, 2011 2:14 PM
To: da...@violinman.co.uk
Cc: elecraft@mailman.qth.net
Subject: Re: [Elecraft] Flying with K2

Hi David,

I am flying to Denmark with my FT-817 next week, and I contacted EasyJet to
figure out what I was going to do.

The SLA battery is a no-no. It took 4 emails and escalating the issue to
find out for sure that these are not allowed on EasyJet no matter what, and
probably the same applies to other European airlines.

Regarding the radio itself you can carry it in your hand baggage no problem,
as long as you stay within the allowance of your airline. In EasyJet's case
that means certain dimensions but no limit on the weight, so if you pack
tightly you might be able to fit laptop as well as your rig into a suitable
backpack. You can also pack it in the hold baggage, either is allowed.

I bought a 8Ah Lithium Polymer battery from uttings.co.uk to replace my 12Ah
SLA battery, which I wasn't allowed to bring. It's this one:
http://www.deben.com/lithium-ion/12v-8ah-lithium-ion-battery-pack-with-fuel-
gauge.html

A datasheet for the battery can be found here:
http://www.tracerpower.com/user/pdf/Li-Poly_Data_Sheet.pdf

This works exceedingly well with my FT-817, I don't have a K2 to try it on
but be aware that the voltage is somewhat lower than a SLA, with about 12.8
volts when fully charged and dropping to about 9.5V when it's flat. So this
might be an issue for the K2 - the FT-817 puts out the full 5W at well under
9V.

Hope it helps!

73, Thomas M0TRN
K3 #4208

On 25 June 2011 18:21, David Andrews  wrote:

> Advice please - I'm flying within Europe shortly with a K2. Do I pack 
> it in suitcase (hold) or carry-on? Any problem with the SLA battery? 
> What about paperwork? Is it likely to cause concern at the airports?
>
>
>
> Thanks
>
>
>
> David G4CWB
>
>
>
> __
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft@mailman.qth.net
>
> This list hosted by: http://www.qsl.net Please help support this email 
> list: http://www.qsl.net/donate.html
>
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

[Elecraft] K3 in the Media

2011-06-27 Thread KF4VTT

Hi Guys,

I thought I would post a link to our local club's 2011 Field Day effort in
Burlington, NC.  It was pretty neat how much they focused on the K3 (proud
to say it was my personal #1289, fresh back from a week in VP9).

http://www.youtube.com/watch?v=3uMY-HtV85Y
http://www.youtube.com/watch?v=3uMY-HtV85Y 

Our 11 year old PIO did a great job!

73,
Doug 
KF4VTT
KF4VTT/VP9
K3#1289
AARC K4EG ex officio

--
View this message in context: 
http://elecraft.365791.n2.nabble.com/K3-in-the-Media-tp6523462p6523462.html
Sent from the Elecraft mailing list archive at Nabble.com.
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

Re: [Elecraft] question re K3's KAT3 ATU

2011-06-27 Thread Matt Zilmer

Push the ATU TUNE button once to get a quick but somewhat rough SWR
match.  If you push ATU TUNE a second within 5 seconds of the first
pass completing, the ATU will take more time and come up with a better
SWR match.

Your antenna may have some wind on it, and this can affect SWR
consistency.  Rain on ladder line does the same thing.

None of this is a problem, as long as your SWR matches 2.0:1 or less.
The K3's PA and protection circuitry work very well into imperfect
loads.   The PA is *very* robust and well-tested for odd loads.

We had a balky 65 foot dipole during Field Day this year, where the
ATU TUNE SWR showed 1.5:1.  When we put full power into the load,
during long term CW ops it showed 2.5:1.  With 95W showing on the
external LP100 meter, we just kept on truckin' - for seven more hours
until the sun showed its face around 5:10 AM or so.  My K3 survived
all that.  I've seen it take on considerably worse SWR and handle the
situation just fine.

73,
matt W6NIA

==

On Mon, 27 Jun 2011 19:12:16 -0700, you wrote:

>I am often on the same frequency daily - 3.575 MHz, but the ATU does not
>give me exactly the same answer every night.  On my wire antenna it always
>starts at 5.8:1 to 6.1:1 and ends up at 1.8:1 or 1.7:1.  But sometimes, it
>gives me 1.0:1.  The power shown on the display when transmitting always
>seems to be more or less what I set it for.  What is causing this
>inconsistency & is it a problem?
>
>Thanks,
>73 Kate K6HTN
>__
>Elecraft mailing list
>Home: http://mailman.qth.net/mailman/listinfo/elecraft
>Help: http://mailman.qth.net/mmfaq.htm
>Post: mailto:Elecraft@mailman.qth.net
>
>This list hosted by: http://www.qsl.net
>Please help support this email list: http://www.qsl.net/donate.html
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

[Elecraft] NU6T FD Expedition to Leviathan Peak [W6/SN-039]

2011-06-27 Thread FredJensen

OK, practically everything went as planned.  Being several years older 
since the last time I made this trek, it seemed as if:

1.  The gate where we had to park, while it looked like the same place, 
was quite a bit farther from the summit than I remember.

2.  That far and that much "up" gets harder as you accumulate more 
birthdays.

We decided to spend Fri nite at Topaz Lake NV, to be very close to the 
summit on Sat AM and have a night to acclimate at 5,000 ft ... I live at 
1,700 ft, Rich lives at a couple of hundred feet.

Rich and I made two trips with his big-wheel cart carrying more gear and 
general stuff than we needed, and on the second, a woman who had passed 
us on the way up, came down from the summit and pulled our cart the last 
50 meters.  It turned out she was a personal trainer and fitness 
instructor, and significantly younger.  Viewing this as a gift from the 
FD gods, we began to set up.

Rich's K1 with an older Buddipole in a dipole configuration on 20, my K2 
and Buddipole in a vertical groundplane config on 17 and we were 
on-the-air.  My phone got confused with too many sites, so I couldn't 
spot us on SOTAWatch and QRPSpots, and Rich's hadn't worked since about 
when we left Gardnerville NV, but I called CQ and Rich N4EX answered me 
and gave us a spot.  He spotted us, but unfortunately, it was now close 
to 1800Z and I made only 3 more Q's with summit chasers before the FD 
bedlam opened up.

We stuck it out on CW on 15 and 20, and ended up with a total of 56 Q's, 
actually, Rich made one on SSB.  My Chinese "9.8 Ah" Li-Ion battery 
pooped out after about 3 hrs, my Maha charger stuffed 2.7 Ah back into 
it at home, I don't recommend buying a battery that you have to take to 
the local Scheuan resturant to get the label translated :-(

Great steak dinner back at Topaz, and a good night's sleep before the 
4.5 hr trip home.  Really great time.  Rich is a Biologist for CalTrans 
and knows just a whole lot about the flora and fauna of the Western 
Frontier, and I had lots of time to explore that with him.  First time 
I've ever seen a K1, and so first time I've ever operated with one ... 
that is a really cool little radio!!  I really like my KX1 but sometimes 
it doesn't "feel" like a radio.  K1 has a front panel, plenty of audio 
[I'm nearly deaf], and just a really nice feel.

Fun time with radio, outdoors, a summit, and truly great weather.  We 
both are going to reduce the "gear load" on the next one ... if you 
didn't need it and it wasn't essential for "Plan B," leave it home.

73,

Fred K6DGW
Auburn CA


__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

[Elecraft] K3 at W2LV

2011-06-27 Thread John Santillo

Well S/N 5033 played very well at the W2LV 3A FD effort this past weekend.
It was used primarily on 15M with a short stint on 80M.Everyone at the
FD site was very impressed with the K3 and its neighbor the P3.  The only
issue I noticed was the FD message I recorded on the KDVR3 Digital Voice
Recorder would get erased from time to time and I'd have to re-record the
message.  Maybe there was too much RF floating around?

 

73,

 

John

N2HMM

 

__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

Re: [Elecraft] KPA-500 SN 101 On the Air

2011-06-27 Thread Ron D'Eau Claire

Thanks Mike. 

I'll look into why there are extras being supplied on the I/O module itself.
You are the first to report that. Up until now, they were either in the bag
or on the board.

Enjoy

Ron AC7AC

-Original Message-


I had 4 mounted on the board and then 6 more in the hardware.  I do see 
on A8 the notation about them possibly being mounted on the board.  I 
will freely admit that I did a cursor glance at the parts list and dove in!

I love the automatic band detection!  Nice!  The amp is quiet and just 
loafs along.  I am very happy with the amp.  It will be a pleasure 
taking it to J6 for the WW DX test in November.

W0MU


__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

Re: [Elecraft] question re K3's KAT3 ATU

2011-06-27 Thread Wayne Burdick

It's not a problem, but I can probably improve this behavior in K3  
firmware. It's on my list.

73,
Wayne
N6KR

On Jun 27, 2011, at 7:12 PM, Kate Hutton wrote:

> I am often on the same frequency daily - 3.575 MHz, but the ATU does  
> not
> give me exactly the same answer every night.  On my wire antenna it  
> always
> starts at 5.8:1 to 6.1:1 and ends up at 1.8:1 or 1.7:1.  But  
> sometimes, it
> gives me 1.0:1.  The power shown on the display when transmitting  
> always
> seems to be more or less what I set it for.  What is causing this
> inconsistency & is it a problem?
>
> Thanks,
> 73 Kate K6HTN
> __
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft@mailman.qth.net
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html

__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

Re: [Elecraft] question re K3's KAT3 ATU

2011-06-27 Thread Guy Olinger K2AV

Depending on your antenna, the answer can be as simple as ground
moisture.   Would need more detail about your antenna to speculate
farther.  73, Guy.

On Mon, Jun 27, 2011 at 10:12 PM, Kate Hutton  wrote:
> I am often on the same frequency daily - 3.575 MHz, but the ATU does not
> give me exactly the same answer every night.  On my wire antenna it always
> starts at 5.8:1 to 6.1:1 and ends up at 1.8:1 or 1.7:1.  But sometimes, it
> gives me 1.0:1.  The power shown on the display when transmitting always
> seems to be more or less what I set it for.  What is causing this
> inconsistency & is it a problem?
>
> Thanks,
> 73 Kate K6HTN
> __
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft@mailman.qth.net
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

Re: [Elecraft] K3: KPA100 Squeal

2011-06-27 Thread Guy Olinger K2AV

If you can do it, see if you still have the noise running off a
battery.   73, Guy.

On Mon, Jun 27, 2011 at 8:37 PM, Adi Andrei  wrote:
> The fans are still but I still hear it. Almost like some switching PSU
> noise.
>
> Adi
> 2e0ttx
>
> On 27/06/2011 15:21, Guy Olinger K2AV wrote:
>>
>> Check to make sure that the cables routed in front of the fans are not
>> touching.  A light touch will result in a sound like that.  It will
>> change or go away with the fan speed.
>>
>> 73, Guy.
>>
>> On Mon, Jun 27, 2011 at 9:10 AM, Adi Andrei
>>  wrote:
>>>
>>> I have the same thing happening, similar series K3 (5k something) , also
>>> assembled in March.
>>>
>>> Adi
>>> 2E0TTX
>>>
>>>
>>> On 27/06/2011 13:38, Joe Harris wrote:

 I have very similar symptoms in my K3/100 (SN 5284) that I assembled in
 March. It makes the sound even if I am in TX test mode. Again, no
 performance issues, just a slightly bothersome squeal / whine.



 On Sun, Jun 26, 2011 at 8:23 PM, Geoffrey
 Wolfwrote:

> First off it was a great Field Day and my new K3 impressed me extremely
> not
> only in performance but in it's functionality.
>
> To kick off Field Day I installed a new KPA100 into the K3. I did all
> the
> necessary TX gain calibrations using a dummy load.
>
> One thing I noticed immediately was that I was hearing a very high
> pitched
> squeal coming from either the PA board or possibly the KIO3 (the board
> the
> amp plugs into). The squeal seems to vary in frequency each time the
> transmitter keys up (can only hear it when the radio is in TX). The
> squeal
> is not very loud but its loud enough for me to hear it if I listen
> closely.
> It doesn't seem to be power related. The squeal is there even if the
> radio
> is in TX but no power going out (RF Pwr set to 0W). The closest thing I
> can
> compare the sound to is perhaps a tiny leak in an air hose. Is this
> typical
> of a bad solder joint or something?
>
> This squeal only pertains to the new KPA100 installation. Before the
> amp
> was installed I didn't hear a thing.
>
> I should also note that nothing appears to be affecting performance.
> Puts
> out 100 watts no problem. Clean modulation, etc.
>
> --
> Geoffrey Wolf
> AB3LS (Amateur Radio Callsign)
> University of Pittsburgh '14
> gr...@pitt.edu
> liltechd...@me.com
>
> __
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft@mailman.qth.net
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>

>>> __
>>> Elecraft mailing list
>>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>>> Help: http://mailman.qth.net/mmfaq.htm
>>> Post: mailto:Elecraft@mailman.qth.net
>>>
>>> This list hosted by: http://www.qsl.net
>>> Please help support this email list: http://www.qsl.net/donate.html
>>>
>
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

[Elecraft] question re K3's KAT3 ATU

2011-06-27 Thread Kate Hutton

I am often on the same frequency daily - 3.575 MHz, but the ATU does not
give me exactly the same answer every night.  On my wire antenna it always
starts at 5.8:1 to 6.1:1 and ends up at 1.8:1 or 1.7:1.  But sometimes, it
gives me 1.0:1.  The power shown on the display when transmitting always
seems to be more or less what I set it for.  What is causing this
inconsistency & is it a problem?

Thanks,
73 Kate K6HTN
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

Re: [Elecraft] K3 at Field Day

2011-06-27 Thread NZ0T

We used my K3 for the CW station at the WS4Y effort for the 3rd year in a
row.  989 QSO's using a 135' zepp at 60' and the K3 internal tuner.

--
View this message in context: 
http://elecraft.365791.n2.nabble.com/K3-at-Field-Day-tp6521189p6523367.html
Sent from the Elecraft mailing list archive at Nabble.com.
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

Re: [Elecraft] K3: SWR meter readings on 10m..mystery solved...

2011-06-27 Thread Dave Perry

John,

I noticed the same high SWR in bypass mode on 10M the other day.  I have the 
KPA500 and thus was wondering why the K3 was seeing up to a 1.7 to 1 SWR 
into the KPA500.  So I got home from work today and tried your solution.  I 
turned on the ATU and tuned into a 50 ohm dummy load.  When I went back to 
normal operation in Bypass mode, the SWR into the amp was back to 1.1 to 1. 
Thanks for the tip.

Dave, N4QS

- Original Message - 
From: "VK7JB" 
To: 
Sent: Monday, June 27, 2011 7:39 AM
Subject: Re: [Elecraft] K3: SWR meter readings on 10m..mystery solved...


> I've solved my mystery.
>
> I read in the archives that the KAT3 ATU is not completely out of circuit 
> in
> "bypass mode".  If I understand correctly, small values of L and C are 
> used
> to remove it functionally, but there is stray reactance that might
> contribute to the higher indicated SWR on some bands.
>
> So then I wondered if the KAT3 might need to be tuned at least once into a
> 50 ohm load for the "bypass" state to be correctly determined.  Made sense
> in my imagination, and thinking on it,  I realised I'd never tuned the ATU
> into a 50 ohm load before.
>
> So I did that - tuned the KAT3 to the dummy load on the bands where it
> previously indicated higher than expected in ATU bypass mode.  I let it do
> its stuff and find a match for the dummy load, then bypassed the ATU.
>
> Now, in ATU "Bypass" mode, the K3 reads 1.0:1 SWR into the same dummy load
> that it previously showed as 1.5:1.   Issue gone.
>
> 73,
> John
> VK7JB
>
>
>
> --
> View this message in context: 
> http://elecraft.365791.n2.nabble.com/K3-SWR-meter-readings-on-10m-tp6519425p6520233.html
> Sent from the Elecraft mailing list archive at Nabble.com.
> __
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft@mailman.qth.net
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html 

__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

Re: [Elecraft] KPA-500 SN 101 On the Air

2011-06-27 Thread Lyle Johnson

The manufacturer of the stacked DE-9 connector may or may not 
pre-install jackscrews at the factory.  If the manufacturer 
pre-installed the jackscrwws, they will have to be removed.  You'll 
notice the finish on the jackscrews, if already installed, differs from 
the finish of the supplied jackscrews.  By supplying six jackscrews, we 
ensure they all match, and that we have additional flexibility in the 
supplier of the stacked DE-9 component.

73,

Lyle KK7P

> I had 4 mounted on the board and then 6 more in the hardware.  I do see
> on A8 the notation about them possibly being mounted on the board.  I
> will freely admit that I did a cursor glance at the parts list and dove in!
>
> I love the automatic band detection!  Nice!  The amp is quiet and just
> loafs along.  I am very happy with the amp.  It will be a pleasure
> taking it to J6 for the WW DX test in November.
>
> W0MU
>
>
>
> On 6/27/2011 4:39 PM, Ron D'Eau Claire wrote:
>> Glad it went well, Mike.
>>
>> When you did the inventory, your manual should have had this notation about
>> the jack screw nuts on pg A8:
>>
>> "These may be supplied mounted on the I/O board connectors."
>>
>> I'm not sure why some are and some aren't. The Bill of Materials calls for
>> them to be "KPA500 Rear Panel Envelope - E850475".
>>
>> Glad it was obvious anyway, Hi!
>>
>> 73,
>>
>> Ron AC7AC
>>
>>
>>
>> -Original Message-
>> From: elecraft-boun...@mailman.qth.net
>> [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Mike Fatchett W0MU
>> Sent: Monday, June 27, 2011 3:02 PM
>> To: elecraft@mailman.qth.net
>> Subject: [Elecraft] KPA-500 SN 101 On the Air
>>
>> The kit went together in about 5 hours.
>>
>> The only sticking point I had with the build was with the Z panel.  The
>> holes were not very close when attaching the back panel.
>>
>> Everything else in the build was pretty straight forward.  The IO board
>> had the jack screws that had to be removed before the board could be
>> mounted.  It was obvious what needed to be done but the manual might
>> want to warn others that this may have to be done.
>>
>> Heading to the shack to test out the RF.
>>
>> Mike W0MU
>>
>>
>> __
>> Elecraft mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:Elecraft@mailman.qth.net
>>
>> This list hosted by: http://www.qsl.net
>> Please help support this email list: http://www.qsl.net/donate.html
>>
> __
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft@mailman.qth.net
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>

__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

Re: [Elecraft] KPA-500 SN 101 On the Air

2011-06-27 Thread Mike Fatchett W0MU

I had 4 mounted on the board and then 6 more in the hardware.  I do see 
on A8 the notation about them possibly being mounted on the board.  I 
will freely admit that I did a cursor glance at the parts list and dove in!

I love the automatic band detection!  Nice!  The amp is quiet and just 
loafs along.  I am very happy with the amp.  It will be a pleasure 
taking it to J6 for the WW DX test in November.

W0MU



On 6/27/2011 4:39 PM, Ron D'Eau Claire wrote:
> Glad it went well, Mike.
>
> When you did the inventory, your manual should have had this notation about
> the jack screw nuts on pg A8:
>
> "These may be supplied mounted on the I/O board connectors."
>
> I'm not sure why some are and some aren't. The Bill of Materials calls for
> them to be "KPA500 Rear Panel Envelope - E850475".
>
> Glad it was obvious anyway, Hi!
>
> 73,
>
> Ron AC7AC
>
>
>
> -Original Message-
> From: elecraft-boun...@mailman.qth.net
> [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Mike Fatchett W0MU
> Sent: Monday, June 27, 2011 3:02 PM
> To: elecraft@mailman.qth.net
> Subject: [Elecraft] KPA-500 SN 101 On the Air
>
> The kit went together in about 5 hours.
>
> The only sticking point I had with the build was with the Z panel.  The
> holes were not very close when attaching the back panel.
>
> Everything else in the build was pretty straight forward.  The IO board
> had the jack screws that had to be removed before the board could be
> mounted.  It was obvious what needed to be done but the manual might
> want to warn others that this may have to be done.
>
> Heading to the shack to test out the RF.
>
> Mike W0MU
>
>
> __
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft@mailman.qth.net
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

[Elecraft] K3: KPA100 Squeal

2011-06-27 Thread Johnny Siu

Could I suspect that the noise is from the vibration of the ferrite core 
of the RF transformers in the PA unit?  When I tx, I can hear some vibration 
synchronise to my voice.

TNX & 73,

Johnny VR2XMC

從︰ Adi Andrei 
收件人︰ Guy Olinger K2AV 
副本(CC)︰ elecraft@mailman.qth.net
傳送日期︰ 2011年06月28日 (週二) 8:37 AM
主題︰ Re: [Elecraft] K3: KPA100 Squeal

The fans are still but I still hear it. Almost like some switching PSU noise.

Adi
2e0ttx

On 27/06/2011 15:21, Guy Olinger K2AV wrote:
> Check to make sure that the cables routed in front of the fans are not
> touching.  A light touch will result in a sound like that.  It will
> change or go away with the fan speed.
>
> 73, Guy.
>
> On Mon, Jun 27, 2011 at 9:10 AM, Adi Andrei  wrote:
>> I have the same thing happening, similar series K3 (5k something) , also 
>> assembled in March.
>>
>> Adi
>> 2E0TTX
>>
>>
>> On 27/06/2011 13:38, Joe Harris wrote:
>>> I have very similar symptoms in my K3/100 (SN 5284) that I assembled in
>>> March. It makes the sound even if I am in TX test mode. Again, no
>>> performance issues, just a slightly bothersome squeal / whine.
>>>
>>>
>>>
>>> On Sun, Jun 26, 2011 at 8:23 PM, Geoffrey 
>>> Wolfwrote:
>>>
 First off it was a great Field Day and my new K3 impressed me extremely not
 only in performance but in it's functionality.

 To kick off Field Day I installed a new KPA100 into the K3. I did all the
 necessary TX gain calibrations using a dummy load.

 One thing I noticed immediately was that I was hearing a very high pitched
 squeal coming from either the PA board or possibly the KIO3 (the board the
 amp plugs into). The squeal seems to vary in frequency each time the
 transmitter keys up (can only hear it when the radio is in TX). The squeal
 is not very loud but its loud enough for me to hear it if I listen closely.
 It doesn't seem to be power related. The squeal is there even if the radio
 is in TX but no power going out (RF Pwr set to 0W). The closest thing I can
 compare the sound to is perhaps a tiny leak in an air hose. Is this typical
 of a bad solder joint or something?

 This squeal only pertains to the new KPA100 installation. Before the amp
 was installed I didn't hear a thing.

 I should also note that nothing appears to be affecting performance. Puts
 out 100 watts no problem. Clean modulation, etc.

 --
 Geoffrey Wolf
 AB3LS (Amateur Radio Callsign)
 University of Pittsburgh '14
 gr...@pitt.edu
 liltechd...@me.com

 __
 Elecraft mailing list
 Home: http://mailman.qth.net/mailman/listinfo/elecraft
 Help: http://mailman.qth.net/mmfaq.htm
 Post: mailto:Elecraft@mailman.qth.net

 This list hosted by: http://www.qsl.net
 Please help support this email list: http://www.qsl.net/donate.html

>>>
>> __
>> Elecraft mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:Elecraft@mailman.qth.net
>>
>> This list hosted by: http://www.qsl.net
>> Please help support this email list: http://www.qsl.net/donate.html
>>
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

Re: [Elecraft] K3: KPA100 Squeal

2011-06-27 Thread Adi Andrei

The fans are still but I still hear it. Almost like some switching PSU noise.

Adi
2e0ttx

On 27/06/2011 15:21, Guy Olinger K2AV wrote:
> Check to make sure that the cables routed in front of the fans are not
> touching.  A light touch will result in a sound like that.  It will
> change or go away with the fan speed.
>
> 73, Guy.
>
> On Mon, Jun 27, 2011 at 9:10 AM, Adi Andrei  wrote:
>> I have the same thing happening, similar series K3 (5k something) , also 
>> assembled in March.
>>
>> Adi
>> 2E0TTX
>>
>>
>> On 27/06/2011 13:38, Joe Harris wrote:
>>> I have very similar symptoms in my K3/100 (SN 5284) that I assembled in
>>> March. It makes the sound even if I am in TX test mode. Again, no
>>> performance issues, just a slightly bothersome squeal / whine.
>>>
>>>
>>>
>>> On Sun, Jun 26, 2011 at 8:23 PM, Geoffrey 
>>> Wolfwrote:
>>>
 First off it was a great Field Day and my new K3 impressed me extremely not
 only in performance but in it's functionality.

 To kick off Field Day I installed a new KPA100 into the K3. I did all the
 necessary TX gain calibrations using a dummy load.

 One thing I noticed immediately was that I was hearing a very high pitched
 squeal coming from either the PA board or possibly the KIO3 (the board the
 amp plugs into). The squeal seems to vary in frequency each time the
 transmitter keys up (can only hear it when the radio is in TX). The squeal
 is not very loud but its loud enough for me to hear it if I listen closely.
 It doesn't seem to be power related. The squeal is there even if the radio
 is in TX but no power going out (RF Pwr set to 0W). The closest thing I can
 compare the sound to is perhaps a tiny leak in an air hose. Is this typical
 of a bad solder joint or something?

 This squeal only pertains to the new KPA100 installation. Before the amp
 was installed I didn't hear a thing.

 I should also note that nothing appears to be affecting performance. Puts
 out 100 watts no problem. Clean modulation, etc.

 --
 Geoffrey Wolf
 AB3LS (Amateur Radio Callsign)
 University of Pittsburgh '14
 gr...@pitt.edu
 liltechd...@me.com

 __
 Elecraft mailing list
 Home: http://mailman.qth.net/mailman/listinfo/elecraft
 Help: http://mailman.qth.net/mmfaq.htm
 Post: mailto:Elecraft@mailman.qth.net

 This list hosted by: http://www.qsl.net
 Please help support this email list: http://www.qsl.net/donate.html

>>>
>> __
>> Elecraft mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:Elecraft@mailman.qth.net
>>
>> This list hosted by: http://www.qsl.net
>> Please help support this email list: http://www.qsl.net/donate.html
>>
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

[Elecraft] K2 w/ modules for sale

2011-06-27 Thread Eric Tichansky NO3M

Selling K2 SN 6654.  Case has some scratches/small nicks on side 
panels and bottom panel.  Side panels have single holes drilled 
for #8 or #10 bolts used in mobile mount.  Two separate top 
panels included with options that couldn't be installed at the 
same time; installed options:

KDSP2 DSP Filter
KSB2 SSB adapter
KNB2 Noise Blanker
K160M 160M and RX Ant

Top #1 (HP)
KPA100 100W PA + RS-232

Top #2 (LP)
KAT2 Auto tuner
KIO2 RS-232 / Aux I/O
KBT2 Internal Battery

Never had any mechanical or electrical issues since being built; 
original owner.  Asking $1350 + shipping for everything (lists 
$1890 new).  Please reply off-list if interested.

73 - Eric NO3M
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

Re: [Elecraft] K3/ Microkeyer/N1MM lockup at FD

2011-06-27 Thread Joe Subich, W4TV


 > The setup was a K3, N1MM and a MicroHam MicroKeyer (the CW only
 > model).

Do you mean the microHAM CW Keyer or some other interface?

> Several times, the keying stopped but the radio remained frozen in
> transmit mode. The PTT light was ON on the MicroKeyer, the transmit
> light was ON on the K3 and N1MM wouldn't respond.

I assume you had a PTT cable connected from the CW Keyer to the K3
PTT jack.

1) What version of N1MM Logger were you using?

2) What PTT settings did you have in N1MM Logger?

3) Did you have PTT assigned to an RTS line on the Radio port?

If so, did you have "Energize Hardware & Software PTT" checked
in the N1MM serial port configuration?

If you had "Energize Hardware & Software PTT" checked did you
have "PTT via Radio Command CW Mode" checked?

microHAM Router intercepts the WinKey "PTT On" and  "PTT Off" commands
and translates them to serial (RTS) PTT internally.  I have not tried
to look at the WinKey data stream recently but perhaps N1MM Logger is
not sending the WinKey "PTT Off" command when you strike any key
except .

73,

... Joe, W4TV


On 6/27/2011 5:59 PM, Buck - k4ia wrote:
> The mighty K4TS, Rappahannock Valley Amateur Radio Club, 8A Field Day
> featured 1 K3 - mine on 40 CW.  40 CW made 925 contacts but only 854
> after eliminating the dupes.  The K3 really strutted its stuff and it
> was obvious what a superior rig it is when I went around and listened to
> what other radios were hearing - a mush of noise and IMD that made
> operating almost impossible Saturday night.  Several ops just gave up as
> the noise and close signals crushed their rigs.  They marveled out how
> clear the K3 sounded.  No news there.
>
> I did have one glitch that happened several times.  I proffer it to all
> three groups for comment.
> The setup was a K3, N1MM and a MicroHam MicroKeyer (the CW only model).
>
> The keyer would start to auto-send CQ just as I heard a call.  When I
> hit a key on the computer keyboard (including the ESC key), the keying
> should stop and the radio go into receive mode.  Several times, the
> keying stopped but the radio remained frozen in transmit mode.  The PTT
> light was ON on the MicroKeyer, the transmit light was ON on the K3 and
> N1MM wouldn't respond.  Paddles plugged into the MicroKeyer did
> nothing.  The "fix" was to turn off the K3 and turn it back on again.
> That would release the PTT and all would go back to normal.  It didn't
> happen every time but it did happen a lot.
>
> Anyone with any ideas, chime in.
>
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

Re: [Elecraft] KPA-500 SN 101 On the Air

2011-06-27 Thread Ron D'Eau Claire

Glad it went well, Mike. 

When you did the inventory, your manual should have had this notation about
the jack screw nuts on pg A8:

"These may be supplied mounted on the I/O board connectors."

I'm not sure why some are and some aren't. The Bill of Materials calls for
them to be "KPA500 Rear Panel Envelope - E850475".

Glad it was obvious anyway, Hi! 

73, 

Ron AC7AC



-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Mike Fatchett W0MU
Sent: Monday, June 27, 2011 3:02 PM
To: elecraft@mailman.qth.net
Subject: [Elecraft] KPA-500 SN 101 On the Air

The kit went together in about 5 hours.

The only sticking point I had with the build was with the Z panel.  The 
holes were not very close when attaching the back panel.

Everything else in the build was pretty straight forward.  The IO board 
had the jack screws that had to be removed before the board could be 
mounted.  It was obvious what needed to be done but the manual might 
want to warn others that this may have to be done.

Heading to the shack to test out the RF.

Mike W0MU


__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

[Elecraft] [OT] Elecraft K3 on TV :: WFMY-TV, Greensboro, NC

2011-06-27 Thread Steve Jackson

http://www.digtriad.com/news/local/article/180752/57/Ham-Radios-Future-Sounds-Loud-And-Clear-During-Field-Day

Well, there *was* an Icom in there, too.  But not at Field Day.

73  Steve KZ1X/4
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

Re: [Elecraft] Boots for the XG3...

2011-06-27 Thread Joe Subich, W4TV


 > Let the guys play with their XG3 with 0 dBm...best approach.

0 dBm is fine but I certainly would not want my neighbor putting a
1W XG3 into a decent (0 dBi) antenna - his Icom 746 is already a
terrible phase noise generator.  At 1W the calculation for the XG3
at 1 mile in a 500 Hz bandwidth at 14 MHz is roughly:

+30 dBm (1W) - (105 dBC/Hz - 10*log(500)) - 60 dB (path loss)

With net antenna gain of 0dB, that's about -107 dBm on 20, go down
to 160 and it is around -90 dBm and go up to 6 and it drops to about
-118 dBm.  The situation at 160 may not be quite that bad but it
might be worse on six because of the net antenna gain factors.  In
any case, the noise for an XG3 amplified to 1W at 1 mile is well
above the ambient noise level - even a for multiband vertical in my
semi-rural/suburban area.

The hard numbers make it clear that 0 dBm is about the limit for an
XG3 into a "real" antenna!

73,

... Joe, W4TV


On 6/27/2011 5:12 PM, Edward R. Cole wrote:
> Joe,
>
> NO worries. I was just testing the waters to see if there *any*
> interest. I would have to build a prototype and test it before offering
> anything publicly. One might have to decide on a beacon frequency and
> build a multi-pole xtal filter to take care of phase noise or maybe use
> the XG3 in a PLL that would clean up the phase noise. Just about any
> approach seems a lot of work just to use the XG3. Most likely one is
> better building a clean beacon from scratch.
>
> Let the guys play with their XG3 with 0 dBm...best approach. I have used
> mine on 432 and 1296 as a test signal for my eme dish and placed it up
> to 200-foot from the dish. Using a 6-dB log-periodic antenna and 15-dB
> attenuators. Theoretically the XG3 outputs 1/n above 200-MHz (432 = -4.8
> dBm; 1296 = -9.5 dBm, assuming it is running at Fo=144 and n=3 or 9) I
> even pointed the log-periodic away from the dish to obtain a weaker
> signal. The dish has 34.5 dBi gain on 1296.
>
> I have a 144-MHz and 10-GHz dual beacon half-finished that runs with a
> TCXO for 10-GHz and xtal osc for 2m. Basically it is a 144/10,368
> transverter with 20-dB directional coupler to tap off 20mw 144-MHz for
> driving the transverter and 2w going to a omni-directional 2m antenna.
> The transverter should provide 100-125mw output to a multi-slot
> waveguide radiator for about 1/2w ERP on 10-GHz. I also have a 1w amp to
> boost the 10-GHz output.
>
> 73, Ed
>
> At 06:32 AM 6/27/2011, you wrote:
>
>> *PLEASE DO NOT* move forward with *any* amplifier for the XG-3.
>>
>> Like John Ragle I have looked at the phase noise from my XG-3 and it
>> is completely unsatisfactory for beacon use. At -33 dBm it raises the
>> receiver noise floor by more than 20 dB when measured at + 100 KHz on
>> 28 MHz and + 250 KHz in 50 MHz. The measured noise floor (MDS) is more
>> than -110 dBm and at 10W, the XG-3 would make an excellent jamming
>> device.
>>
>> When used as a beacon at even *ONE WATT* the required path loss would
>> need to be around 100 dB for the phase noise to be below the receiver
>> noise level and would still need to be 80 dB or more to be below the
>> local noise level on a "quiet" band.
>>
>> If "boots" become common for the XG-3, I would urge Wayne to remove
>> the beacon capability from the XG-3.
>>
>> 73,
>>
>> ... Joe, W4TV
>>
>>
>> On 6/27/2011 2:05 AM, Edward R. Cole wrote:
>>> I obtained some 7-pole LP filters from Coilcraft:
>>> http://www.coilcraft.com/lcfilt.cfm
>>> http://www.coilcraft.com/pdf_viewer/showpdf.cfm?f=pdf_store:lcfilt.pdf
>>> cost $3.00 in single quantities.
>>>
>>> This would take care of harmonic suppression. I have five of these
>>> for different frequencies but have been working on other projects so
>>> have not measured them using the XG3. I intend to install mine in
>>> 1-inch copper pipe with BNC connectors for better isolation at very
>>> weak signal levels, but that would not be needed if incorporated into
>>> a beacon amplifier. The easiest approach for that is using mmics and
>>> RF modules that are 50-ohm in/out. All that is required is some dc
>>> bias and some RF bypassing of the dc lines.
>>>
>>> This is probably more appropriate for a third party than
>>> Elecraft. I'm guessing it would be a low volume item.
>>>
>>> I proposed the MAR-6 plus M57735 to John Ragle. The M57735 costs
>>> $67.75 from RFParts.
>>> http://www.rfparts.com/pdf_docs/57704-68776/57735.pdf
>>> The M57735 is rated 17w out for 200mw in, so with 20mw drive one
>>> might get 1.7w (gain = 25 dB with 10mw drive).
>>> The MAR-6 are about $5 and will provide about 16-18dB gain with 0dBm
>>> input.
>>>
>>> Add filter, misc components, connectors, pcb, and enclosure and it is
>>> looking like about $100 without labor to assemble it. Someone
>>> offering this as a kit would probably want another 25% markup for
>>> their time. Add $12 for flat-rate shipping.
>>>
>>> How many folks would order a kit?
>>>
>>>
>>>
>>> 73, Ed - KL7UW, WD2XSH/45
>>> ==
>>> B

[Elecraft] KPA-500 SN 101 On the Air

2011-06-27 Thread Mike Fatchett W0MU

The kit went together in about 5 hours.

The only sticking point I had with the build was with the Z panel.  The 
holes were not very close when attaching the back panel.

Everything else in the build was pretty straight forward.  The IO board 
had the jack screws that had to be removed before the board could be 
mounted.  It was obvious what needed to be done but the manual might 
want to warn others that this may have to be done.

Heading to the shack to test out the RF.

Mike W0MU


__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

[Elecraft] K3/ Microkeyer/N1MM lockup at FD

2011-06-27 Thread Buck - k4ia

The mighty K4TS, Rappahannock Valley Amateur Radio Club, 8A Field Day 
featured 1 K3 - mine on 40 CW.  40 CW made 925 contacts but only 854 
after eliminating the dupes.  The K3 really strutted its stuff and it 
was obvious what a superior rig it is when I went around and listened to 
what other radios were hearing - a mush of noise and IMD that made 
operating almost impossible Saturday night.  Several ops just gave up as 
the noise and close signals crushed their rigs.  They marveled out how 
clear the K3 sounded.  No news there.

I did have one glitch that happened several times.  I proffer it to all 
three groups for comment.
The setup was a K3, N1MM and a MicroHam MicroKeyer (the CW only model).

The keyer would start to auto-send CQ just as I heard a call.  When I 
hit a key on the computer keyboard (including the ESC key), the keying 
should stop and the radio go into receive mode.  Several times, the 
keying stopped but the radio remained frozen in transmit mode.  The PTT 
light was ON on the MicroKeyer, the transmit light was ON on the K3 and 
N1MM wouldn't respond.  Paddles plugged into the MicroKeyer did 
nothing.  The "fix" was to turn off the K3 and turn it back on again.  
That would release the PTT and all would go back to normal.  It didn't 
happen every time but it did happen a lot.

Anyone with any ideas, chime in.

-- 

Buck
k4ia

__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

[Elecraft] Dual port USB-RS232 adapter

2011-06-27 Thread Jim Sheldon

Many thanks to whoever posted the note about the Edgeport usb to RS232 
multiport adapter.  I picked up a dual port one off of eBay for just over 20 
bucks and it came with free shipping!

This was one of the older ones by InsideOut but was new in the box.  I went to 
Digi.com and found the current 64 bit drivers for Windows 7.  Painless install 
and the box is up and running.  I can now run my K3 with the logging program on 
one port and the opto-isolator PTT and FSK interface on the second port without 
problems using my Dell laptop for the hamfest demo's.  

One caveat, install the software FIRST before plugging in the hardware and it 
will work the first time.  This seems to be the usual case with all of the USB 
to whatever adapters that require special drivers.   Evidently there are other 
things using COM1, 2 and 3 in the Dell as this box installed as COM4 and COM5 
but it works perfectly and is powered by the USB port.

Jim Sheldon, W0EB
Park City, KS
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

Re: [Elecraft] Waiting for the KPA500

2011-06-27 Thread John Harper

I thought I was the only one who did goofy stuff like that...nice to know I'm 
not alone.

John AE5X
Radio: http://www.ae5x.com/blog
Photography: http://www.timelesspixel.com

__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

[Elecraft] K3 at NN5Z FD

2011-06-27 Thread Lee Buller


I have read some of the FD reports and would comment briefly on the one I 
attended.  Two new K3s were on line and worked flawlessly through the weekend.  
K5PX and AB0S contributed the K3s to the cause.  90 percent of the time, we ran 
CW on both...different bands.  Made over 1550 QSOs with 90 percent being CW.  
We 
really did not have a phone op there, but we wanted to try out the rigs on SSB. 
 
Propagation into Oklahoma was wierd on 20-15-10.  Lots of close in station but 
not so many on the coasts.  40 meters was good until about 11:30 pm and it 
seemed everyone went to bed on the other end.  Antennas were a KT-36 and a 
multiband vertical with 24 radials.  Good food.  Good times.  Great humor.  
Oklahoma is hot and humid.  


This was a combined effort of the host clubBoomer Contest Club, NN5Z and 
the 
guest club:  OLD Flatland Amateur Radio Transmitting Society (OLD F.A.R.T.S.).  
http://www.k0wa.com/old_farts.htm

Just a good time with good friends and great food.

Lee - K0WA
http://www.k0wa/com


 In our day and age it seems that Common Sense is in short supply.  If you 
don't 
have any Common Sense - get some Common Sense and use it.  If you can't find 
any 
Common Sense, ask for help from somebody who has some Common Sense.  Is Common 
Sense divine?

Common Sense is the image of the Creator expressing revealed truth in my mind. 
-  John W. (Kansas)
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

Re: [Elecraft] Boots for the XG3...

2011-06-27 Thread Bill W4ZV

wayne burdick wrote:
> 
> Just to clear this up:
> 
> 1. We are *not* going to remove beacon mode (CW and RTTY text). It's  
> useful for micropower beacons, T-hunts, and receiver demodulator  
> testing.
> 

Very happy to hear that...but I already saved a copy of 1.14 just in case! 
Add "antenna testing" to your list of XG3 applications.  I'll be using mine
to do fine tuning of my 160m RX 4SQ by locating it a mile or so away and
tuning the controller for maximum F/B.  If I ever get the urge to do an OTA
beacon I'll do that with my K2 and an attenuator.

73,  Bill

--
View this message in context: 
http://elecraft.365791.n2.nabble.com/Boots-for-the-XG3-tp6519204p6522312.html
Sent from the Elecraft mailing list archive at Nabble.com.
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

[Elecraft] W7RDP/B down for relocating

2011-06-27 Thread Doug Phillips

Guys, the XG3 beacon will be off the air until 6/29 and then will be 
located in Tamalpais Valley, CA for a week or so aimed at Mt. Diablo.  I 
also need to put the weather proofing device into its intended service, 
covered cat box ;-)

73, Doug W7RDP
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

Re: [Elecraft] Boots for the XG3...

2011-06-27 Thread Wayne Burdick

Just to clear this up:

1. We are *not* going to remove beacon mode (CW and RTTY text). It's  
useful for micropower beacons, T-hunts, and receiver demodulator  
testing.

2. The XG3's phase noise, about -105 dBc/Hz at all offsets above 1  
kHz, is better than that of some inexpensive radios. But it's 30 dB  
worse than the K3, so

3. As I've posted before, you should not amplify the output to high  
levels. 100 mW to 1 W is the highest I'd recommend. And if you plan to  
leave it running, you'll need a low-pass filter to keep it legal.

73,
Wayne
N6KR

__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

[Elecraft] SOLD -- OT: Memory Keyer for sale

2011-06-27 Thread Jim Sheldon

The Keyer has been sold.

For Sale, Jackson Harbor Press "Island Keyer", latest version. 
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

Re: [Elecraft] Boots for the XG3...

2011-06-27 Thread Jack Chomley

Remove the beacon mode and the XG-3 becomes useless for T Hunts :-(
Let anybody who wants to play with their XG-3 be responsible for what they do. 
Given what has been written in this thread, I don't see people rushing off, to 
build XG-3 amplifiers :-)
We have all learnt something in this discussion, so let's build a bridge...
and get over it :-)

73,  Jack. VK4JRC 

Sent from my iPod Touch


On 28/06/2011, at 0:32, "Joe Subich, W4TV"  wrote:

> 
> *PLEASE DO NOT* move forward with *any* amplifier for the XG-3.
> 
> Like John Ragle I have looked at the phase noise from my XG-3 and it
> is completely unsatisfactory for beacon use.  At -33 dBm it raises the
> receiver noise floor by more than 20 dB when measured at + 100 KHz on
> 28 MHz and + 250 KHz in 50 MHz.  The measured noise floor (MDS) is more
> than -110 dBm and at 10W, the XG-3 would make an excellent jamming 
> device.
> 
> When used as a beacon at even *ONE WATT* the required path loss would
> need to be around 100 dB for the phase noise to be below the receiver
> noise level and would still need to be 80 dB or more to be below the
> local noise level on a "quiet" band.
> 
> If "boots" become common for the XG-3, I would urge Wayne to remove
> the beacon capability from the XG-3.
> 
> 73,
> 
>... Joe, W4TV
> 
> 
> 
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

[Elecraft] Waiting for the KPA500

2011-06-27 Thread Ralph Parker

I've been waiting so long for the Elecraft KPA500 amp that I printed a pix
of the front panel, and put it on the shelf above the K3.
Almost as good, but no gain :-)

Ralph, VE7XF

__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

[Elecraft] Wish List for KAT500 (or whatever the tuner for the KPA500 will be)

2011-06-27 Thread Peter Chamalian

1.Instant (or as fast as possible) tuning when QSY to a new band or
new frequency the say way that the KPA500 does.

2.   Tune while transmitting and not requiring key down to tune

3.   While tuning, put the KPA500 into a reduced power mode if necessary
but not key down

4.   Have both balanced and unbalanced antenna input with the ability to
specify (program) which input gets used per band but be able to manually
select as well.

5.   Automatically go into bypass mode if the SWR on the antenna without
the tuner is within predetermined limits.

 

Hope we get to see the tuner sooner rather than later - I'm getting tired of
the antics of a different brand tuner that I currently have.

 

Pete, W1RM

 

__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

[Elecraft] K3 at Field Day

2011-06-27 Thread Chuck Shefflette

The Anne Arundel Radio Club once again convened for Field Day in Davidsonville, 
MD on Saturday. This year was going to be very different. In years past we have 
had one K3 in the CW tent and none anywhere else. This year I brought my two 
K3s along for the CW shelter and three other club members brought their K3s 
(and one P3) along for the HF SSB shelter. Sadly, two of the three SSB K3s went 
home with their owners late Saturday evening, being replaced by Kenwood rigs. 
The two in the CW shelter were accompanied by a Kenwood TS870. The three CW 
operators were busy, with the K3s manned most of the 24 hours. Together we made 
just over 1000 contacts on CW between the three of us, most of them on the K3s. 
The SSB guys made just over 1100 contacts between 6 radios - they've got to 
work harder next year!

Both of my K3s were well used over the 24 hours with no problems except for a 
couple of unseated power cables (from someone moving a rig or dropping 
something on the cable...) The radios got rave reviews and the CW memories 
received extensive use. We did notice that on a couple of occasions we could 
very clearly hear the second harmonic from the 40M K3 on the 20M K3 which could 
be understandable since they were both connected to Vee beams that were only 
about 150' apart and oriented N/S and E/W but I'm going to take a good look at 
the output signals from both of them before they go back on the air here.

I did most of my operating (I sat a position probably 18 or 19 out of 24 hours) 
with my "newer" rig that I purchased from a fellow ham after a lightning 
incident did a fair amount of damage to it. Some of you may remember reading 
about K3 #4407 - it required a new DSP, an MCU replacement, and an new KIO3 but 
that seems to have been the only damage to it and it works wonderfully now. We 
managed to work a lot of stations that were barely audible but able to be 
pulled out with the use of the K3's great DSP and filters.

One of the highlights of the "day" came late morning on Sunday. We were still 
missing Alaska to complete the US sections. I was working my way through 20M on 
the West facing Vee beam when I heard KL7AA faintly. I stopped and tried 
several times to work him - he got part of the station call but we just 
couldn't quite hook up (he must not have been using a K3 there :0) I called 
over to the other K3 position and had him move from 40M to 20M to try KL7AA 
using the North Vee beam. He managed to get him first try. We listened for a 
bit afterward with the Kenwood but couldn't hear anything but noise even though 
we could clearly hear him with both K3s. Everyone that was there at the time 
was suitably impressed and I suspect there may be one or two K3 sales out of 
the adventure.

Sitting at one of our meals, we were discussing Elecraft products and I 
happened to mention the KX3 - there was also some interest in that as well.

The bottom line is that everyone that touched any of the K3s at AARC, whether 
on phone or CW, was very impressed with them. They proved themselves in a 
fairly rough 10A situation where we (the CW ops) were sitting directly in the 
path of the phone ops' West facing 20/40M Vee beam and didn't even blink! Can't 
wait till next year so we can do it again! Now both of them will get a nice 
rest since I run about 50% QRP here at the house and seldom run them over 50W 
except for short periods.

73 & 72,

Chuck - AA3CS

__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

Re: [Elecraft] K3 at Field Day

2011-06-27 Thread Dave Perry

Don,

I sort of had the opposite experience at FD.  I was the only real CW op in 
our local club, but my K3 was at home.  One of the other club members had an 
Omni-VII setup as the CW rig.  I used it to make 500 contacts in about six 
hours of operating time (using a multiband dipole).  I actually seriously 
considered getting the Omni-VII two years ago before I decided to purchase 
my K3.  In short, the Omni is a nice little rig, but doesn't have the fit 
and finish of a K3.  After operating 40M CW for several hours, I immediately 
fired up my K3 as soon as I arrived back home.  I was curious to see how 40M 
sounded on my K3 versus the Omni.  It was just amazing how the K3 separates 
the signals and quiets down the band during a busy contest.  Plus the K3 has 
much better ergonomics and access to critical controls.  Of course, I 
suppose that I am preaching to the choir!  Still, FD is always a good time 
to try other rigs.

Dave, N4QS

Proud owner of the K-Line

- Original Message - 
From: "Don Wilhelm" 
To: 
Sent: Monday, June 27, 2011 1:01 PM
Subject: Re: [Elecraft] K3 at Field Day

>  I had a similar experience.  My K3 was used on CW and digital modes,
> and only about a half hour on CW.
> Our club had a guest operator who was very proficient with CW, and he
> was quite pleased with the K3 and the way it operated.
>
> He especially was excited by the QSK. the auto-spot and the DSP
> filtering.  At one point, he commented that the K3 had so many operating
> conveniences that he expected the "kitchen sink" to appear out of it at
> any time :-) .
> It helped that I had Quick-memories set up on the keypad for band
> changing and then changed to the sub-band (CW, Data, or SSB) with the
> M1, M2 and M3 buttons.  That made it easy for everyone to change
> bands/modes/filters.
>
> I think our guest CW operator will be ordering a K3 soon.  He had
> thought all Elecraft gear needed soldering of thru-hole components, and
> was pleased to learn that the K3 was a plug-together kit.
>
> 73,
> Don W3FPR
>
> On 6/27/2011 12:24 PM, John Fritze wrote:
>> Once again, I took my K3 to F/D this year with the P3.  Again, I had a 
>> tough
>> time getting to sit down at my own transceiver.  It seemed as soon as
>> someone got up from the operating position, another butt was in the seat.
>>   Many comments were heard praising the receiver, the vox, the smoothness 
>> of
>> the VFO (I have the N8BX knobs on both the main and sub) and of course 
>> the
>> coolness of the P3.
>>
>>
> __
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft@mailman.qth.net
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html 

__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

[Elecraft] A Goat's FD w/K1 & K2

2011-06-27 Thread Steve_wG0AT

Dave-NK0E and Rooster & Peanut/wGOAT's FD:

https://picasaweb.google.com/goathiker/FD2011

73, wGOAT
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

Re: [Elecraft] K3 at Field Day

2011-06-27 Thread Don Wilhelm

  Sorry, that half hour was on SSB - most of the time was on CW.  289 CW 
contacts in about 11 hours CW operating time - not bad for a 
"fun-oriented" operation.

73,
Don W3FPR

On 6/27/2011 2:01 PM, Don Wilhelm wrote:
>I had a similar experience.  My K3 was used on CW and digital modes,
> and only about a half hour on CW.
> Our club had a guest operator who was very proficient with CW, and he
> was quite pleased with the K3 and the way it operated.
>
> He especially was excited by the QSK. the auto-spot and the DSP
> filtering.  At one point, he commented that the K3 had so many operating
> conveniences that he expected the "kitchen sink" to appear out of it at
> any time :-) .
> It helped that I had Quick-memories set up on the keypad for band
> changing and then changed to the sub-band (CW, Data, or SSB) with the
> M1, M2 and M3 buttons.  That made it easy for everyone to change
> bands/modes/filters.
>
> I think our guest CW operator will be ordering a K3 soon.  He had
> thought all Elecraft gear needed soldering of thru-hole components, and
> was pleased to learn that the K3 was a plug-together kit.
>
> 73,
> Don W3FPR
>
> On 6/27/2011 12:24 PM, John Fritze wrote:
>> Once again, I took my K3 to F/D this year with the P3.  Again, I had a tough
>> time getting to sit down at my own transceiver.  It seemed as soon as
>> someone got up from the operating position, another butt was in the seat.
>>Many comments were heard praising the receiver, the vox, the smoothness of
>> the VFO (I have the N8BX knobs on both the main and sub) and of course the
>> coolness of the P3.
>>
>>
> __
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft@mailman.qth.net
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

Re: [Elecraft] K3 at Field Day

2011-06-27 Thread Don Wilhelm

  I had a similar experience.  My K3 was used on CW and digital modes, 
and only about a half hour on CW.
Our club had a guest operator who was very proficient with CW, and he 
was quite pleased with the K3 and the way it operated.

He especially was excited by the QSK. the auto-spot and the DSP 
filtering.  At one point, he commented that the K3 had so many operating 
conveniences that he expected the "kitchen sink" to appear out of it at 
any time :-) .
It helped that I had Quick-memories set up on the keypad for band 
changing and then changed to the sub-band (CW, Data, or SSB) with the 
M1, M2 and M3 buttons.  That made it easy for everyone to change 
bands/modes/filters.

I think our guest CW operator will be ordering a K3 soon.  He had 
thought all Elecraft gear needed soldering of thru-hole components, and 
was pleased to learn that the K3 was a plug-together kit.

73,
Don W3FPR

On 6/27/2011 12:24 PM, John Fritze wrote:
> Once again, I took my K3 to F/D this year with the P3.  Again, I had a tough
> time getting to sit down at my own transceiver.  It seemed as soon as
> someone got up from the operating position, another butt was in the seat.
>   Many comments were heard praising the receiver, the vox, the smoothness of
> the VFO (I have the N8BX knobs on both the main and sub) and of course the
> coolness of the P3.
>
>
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

Re: [Elecraft] K3: KPA100 Squeal

2011-06-27 Thread Mike K2MK

Hi Joe,

They might. It's a temperature thing not a mode thing. You can manually turn
the fans on and off and vary their speed. This might help in your analysis.
Go to CONFIG: KPA3. It should be in the "nor" position. Turn the VFO A dial
to change it to Fn1...Fn4. These are the 4 different fan speeds. Remember to
put it back into the "nor" position.

73,
Mike K2MK



Joe Harris wrote:
> 
> Do the fans turn on when the K3 is in TX test mode?
> 
> On Mon, Jun 27, 2011 at 10:21 AM, Guy Olinger K2AV
> wrote:
> 
>> Check to make sure that the cables routed in front of the fans are not
>> touching.  A light touch will result in a sound like that.  It will
>> change or go away with the fan speed.
>>
>> 73, Guy.
>>
>> On Mon, Jun 27, 2011 at 9:10 AM, Adi Andrei
>> 
>> wrote:
>> > I have the same thing happening, similar series K3 (5k something) ,
>> also
>> assembled in March.
>> >
>> > Adi
>> > 2E0TTX
> 


--
View this message in context: 
http://elecraft.365791.n2.nabble.com/K3-KPA100-Squeal-tp6518460p6521543.html
Sent from the Elecraft mailing list archive at Nabble.com.
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

Re: [Elecraft] [K2] Erratic power control with base cw K2

2011-06-27 Thread Don Wilhelm

  Al,

Do you have the KAT2 installed? - you said a "base K2", but some use 
that term for any K2/10 without consideration for the options.

If you have the KAT2, disconnect it and run it into a good 50 ohm dummy 
load to see if the condition still exists.

If it works smoothly without the KAT2 and badly with the KAT2 installed, 
there is something erratic in the KAT2 wattmeter circuit - I would 
arbitrarily replace the wattmeter diodes.

Be aware that a bad cable between the K2 and the dummy load could cause 
that kind of erratic behavior.  The K2 must properly sense the actual 
output power and feed it back to the MCU so that a comparison with the 
requested power can be done.

It is also possible that something is awry in the firmware chip.  If you 
do not have success, the next thing to try is to write down all the menu 
settings (including your filter settings) and do a master reset (hold 
the 4, 5, and 6 buttons down while turning on the power).  Yes, you will 
have to reenter those menu settings, but it can straighten out problems 
that seem to exhibit erratic behavior.  Try removing and re-seating the 
MCU before attempting the master reset - any oxidation on the IC pins 
should be wiped clean by the re-seating process.

On 6/27/2011 12:09 PM, Alastair Couper wrote:
>
>> What I am suggesting is that there may be no problem at all - check 
>> with normal CW keying.
>>
>
> It's the same in cw as in tune. I can't reliably set the power at any 
> place but max. For sure, definitely not normal operation.
>
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

Re: [Elecraft] K2 issues on field day

2011-06-27 Thread Phillip Shepard

Hi John,

Thanks for the suggestion; but I wouldn't think RF would be the issue, since
the rig did the same lock-up even with the rig power control all the way
CCW.  It acted more like a control issue.  I will re-install it in the 6
meter station using an XV50 and a brick amplifier, where it will be wired to
an Astron power supply, not a battery.

73,

Phil NS7P

-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net]On Behalf Of John_N1JM
Sent: Monday, June 27, 2011 6:32 AM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] K2 issues on field day


Did you eliminate the idea it might of been RF? You might try it in place of
your K3 for awhile to see if it acts up at your home station.

73,
John N1JM K3 #2555
Arizona

--
View this message in context:
http://elecraft.365791.n2.nabble.com/SSB-net-announcement-tp6279368p6520407.
html
Sent from the Elecraft mailing list archive at Nabble.com.
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

[Elecraft] K3 at Field Day

2011-06-27 Thread John Fritze

Once again, I took my K3 to F/D this year with the P3.  Again, I had a tough
time getting to sit down at my own transceiver.  It seemed as soon as
someone got up from the operating position, another butt was in the seat.
 Many comments were heard praising the receiver, the vox, the smoothness of
the VFO (I have the N8BX knobs on both the main and sub) and of course the
coolness of the P3.

This year I locked the front panel power out, compression etc as done in the
software.  I felt better that every time I wandered over, I didn't need to
reset everything.  I also noticed several ops using the DVR voice keyer this
year ( last year I couldn't get anyone to try it).  One of the ops actually
re-programmed the DVR to what he wanted without the use if the manual, which
is a fine testament to how intuitive it is to sit down behind this rig and
figure out how to operate it.  In contrast to a Kenwood 930 we were also
using, that didn't even go into the correct side band when changing bands
(which meant confusion when receiving bad audio reports).

At the end of the contest we had 3 rigs on 20meters simultaneously.  The K3
had no problems copying the weaker stations through all the interference
from the other transmitters.  The other stations, not so much.

Having both a straight key and paddle input allowed us to plug both a
computer and paddles into the back and use either without any problems.

Several ops said that one way or the other they were going to have a K3 by
the next F/D!

Just and all in all flawless weekend of hard use of my K3!  Thanks to the
Elecraft team for their had work and dedication.

John
K2QY
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

Re: [Elecraft] [K2] Erratic power control with base cw K2

2011-06-27 Thread Alastair Couper


> What I am suggesting is that there may be no problem at all - check with  
> normal CW keying.
>

It's the same in cw as in tune. I can't reliably set the power at any  
place but max. For sure, definitely not normal operation.
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

[Elecraft] OT: Memory Keyer for sale

2011-06-27 Thread Jim Sheldon

For Sale, Jackson Harbor Press "Island Keyer", latest version.  Completely 
built, tested and mounted in a Radio Shack aluminum box.  Not very pretty, but 
rugged and really works well.  I also added the 6 switch kit (no longer 
available from Jackson Harbor) for ease of construction which placed all 6 
memory and function switches in a straight line on it's own PC board for 
reliability.  The keyer runs on 3 AAA batteries and I didn't include an on/off 
switch as the batteries last pretty close to shelf life.  I use the internal 
keyer in my rig now and don't need this one any more, so offering it up here.

The paddle jack is 1/8" stereo with tip=dot and ring=dash with the sleeve, of 
course, being common or ground.  The keying output jack is 1/8" mono and there 
are two 1/8" mono key input jacks that can be used for a straight key or any 
other external keying device.  Comes in handy if you have more than one 
straight key or a bug or a left footed key - whatever.  The keyer memories can 
actually be loaded with a straight key and commands can also be set with a 
straight key.  Very versatile.  Everything is spelled out in the manual which 
is included.

I also added a 1 transistor speaker amplifier and speaker for the sidetone (can 
be turned off with a command if you'd rather use the sidetone in the rig). 

Asking $35 shipped in the US for everything.  Please respond off list if you 
are interested and the first "I'll take it" gets it.

Jim Sheldon - W0EB
Park City, KS


Jackson Harbor's current ham radio products website URL   
http://wb9kzy.com/ham.htm
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

Re: [Elecraft] K3: KPA100 Squeal

2011-06-27 Thread Joe Harris

Do the fans turn on when the K3 is in TX test mode?

On Mon, Jun 27, 2011 at 10:21 AM, Guy Olinger K2AV wrote:

> Check to make sure that the cables routed in front of the fans are not
> touching.  A light touch will result in a sound like that.  It will
> change or go away with the fan speed.
>
> 73, Guy.
>
> On Mon, Jun 27, 2011 at 9:10 AM, Adi Andrei 
> wrote:
> > I have the same thing happening, similar series K3 (5k something) , also
> assembled in March.
> >
> > Adi
> > 2E0TTX
> >
> >
> > On 27/06/2011 13:38, Joe Harris wrote:
> >> I have very similar symptoms in my K3/100 (SN 5284) that I assembled in
> >> March. It makes the sound even if I am in TX test mode. Again, no
> >> performance issues, just a slightly bothersome squeal / whine.
> >>
> >>
> >>
> >> On Sun, Jun 26, 2011 at 8:23 PM, Geoffrey Wolf >wrote:
> >>
> >>> First off it was a great Field Day and my new K3 impressed me extremely
> not
> >>> only in performance but in it's functionality.
> >>>
> >>> To kick off Field Day I installed a new KPA100 into the K3. I did all
> the
> >>> necessary TX gain calibrations using a dummy load.
> >>>
> >>> One thing I noticed immediately was that I was hearing a very high
> pitched
> >>> squeal coming from either the PA board or possibly the KIO3 (the board
> the
> >>> amp plugs into). The squeal seems to vary in frequency each time the
> >>> transmitter keys up (can only hear it when the radio is in TX). The
> squeal
> >>> is not very loud but its loud enough for me to hear it if I listen
> closely.
> >>> It doesn't seem to be power related. The squeal is there even if the
> radio
> >>> is in TX but no power going out (RF Pwr set to 0W). The closest thing I
> can
> >>> compare the sound to is perhaps a tiny leak in an air hose. Is this
> typical
> >>> of a bad solder joint or something?
> >>>
> >>> This squeal only pertains to the new KPA100 installation. Before the
> amp
> >>> was installed I didn't hear a thing.
> >>>
> >>> I should also note that nothing appears to be affecting performance.
> Puts
> >>> out 100 watts no problem. Clean modulation, etc.
> >>>
> >>> --
> >>> Geoffrey Wolf
> >>> AB3LS (Amateur Radio Callsign)
> >>> University of Pittsburgh '14
> >>> gr...@pitt.edu
> >>> liltechd...@me.com
> >>>
> >>> __
> >>> Elecraft mailing list
> >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> >>> Help: http://mailman.qth.net/mmfaq.htm
> >>> Post: mailto:Elecraft@mailman.qth.net
> >>>
> >>> This list hosted by: http://www.qsl.net
> >>> Please help support this email list: http://www.qsl.net/donate.html
> >>>
> >>
> >>
> > __
> > Elecraft mailing list
> > Home: http://mailman.qth.net/mailman/listinfo/elecraft
> > Help: http://mailman.qth.net/mmfaq.htm
> > Post: mailto:Elecraft@mailman.qth.net
> >
> > This list hosted by: http://www.qsl.net
> > Please help support this email list: http://www.qsl.net/donate.html
> >
> __
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft@mailman.qth.net
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>



-- 
Joe Harris, N1QD
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

Re: [Elecraft] P3 development

2011-06-27 Thread ik1bxn

dying to have tx functions/features   that involves some back
opening ;-) 73 - Giorgio

--
View this message in context: 
http://elecraft.365791.n2.nabble.com/P3-development-tp6517565p6520689.html
Sent from the Elecraft mailing list archive at Nabble.com.
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

Re: [Elecraft] Boots for the XG3...

2011-06-27 Thread Joe Subich, W4TV


*PLEASE DO NOT* move forward with *any* amplifier for the XG-3.

Like John Ragle I have looked at the phase noise from my XG-3 and it
is completely unsatisfactory for beacon use.  At -33 dBm it raises the
receiver noise floor by more than 20 dB when measured at + 100 KHz on
28 MHz and + 250 KHz in 50 MHz.  The measured noise floor (MDS) is more
than -110 dBm and at 10W, the XG-3 would make an excellent jamming 
device.

When used as a beacon at even *ONE WATT* the required path loss would
need to be around 100 dB for the phase noise to be below the receiver
noise level and would still need to be 80 dB or more to be below the
local noise level on a "quiet" band.

If "boots" become common for the XG-3, I would urge Wayne to remove
the beacon capability from the XG-3.

73,

... Joe, W4TV


On 6/27/2011 2:05 AM, Edward R. Cole wrote:
> I obtained some 7-pole LP filters from Coilcraft:
> http://www.coilcraft.com/lcfilt.cfm
> http://www.coilcraft.com/pdf_viewer/showpdf.cfm?f=pdf_store:lcfilt.pdf
> cost $3.00 in single quantities.
>
> This would take care of harmonic suppression.  I have five of these
> for different frequencies but have been working on other projects so
> have not measured them using the XG3.  I intend to install mine in
> 1-inch copper pipe with BNC connectors for better isolation at very
> weak signal levels, but that would not be needed if incorporated into
> a beacon amplifier.  The easiest approach for that is using mmics and
> RF modules that are 50-ohm in/out.  All that is required is some dc
> bias and some RF bypassing of the dc lines.
>
> This is probably more appropriate for a third party than
> Elecraft.  I'm guessing it would be a low volume item.
>
> I proposed the MAR-6 plus M57735 to John Ragle.  The M57735 costs
> $67.75 from RFParts.
> http://www.rfparts.com/pdf_docs/57704-68776/57735.pdf
> The M57735 is rated 17w out for 200mw in, so with 20mw drive one
> might get 1.7w  (gain = 25 dB with 10mw drive).
> The MAR-6 are about $5 and will provide about 16-18dB gain with 0dBm input.
>
> Add filter, misc components, connectors, pcb, and enclosure and it is
> looking like about $100 without labor to assemble it.  Someone
> offering this as a kit would probably want another 25% markup for
> their time.  Add $12 for flat-rate shipping.
>
> How many folks would order a kit?
>
>
>
> 73, Ed - KL7UW, WD2XSH/45
> ==
> BP40IQ   500 KHz - 10-GHz   www.kl7uw.com
> EME: 50-1.1kw?, 144-1.4kw, 432-100w, 1296-60w, 3400-?
> DUBUS Magazine USA Rep dubus...@gmail.com
> ==
>
> __
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft@mailman.qth.net
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

Re: [Elecraft] K3: KPA100 Squeal

2011-06-27 Thread Guy Olinger K2AV

Check to make sure that the cables routed in front of the fans are not
touching.  A light touch will result in a sound like that.  It will
change or go away with the fan speed.

73, Guy.

On Mon, Jun 27, 2011 at 9:10 AM, Adi Andrei  wrote:
> I have the same thing happening, similar series K3 (5k something) , also 
> assembled in March.
>
> Adi
> 2E0TTX
>
>
> On 27/06/2011 13:38, Joe Harris wrote:
>> I have very similar symptoms in my K3/100 (SN 5284) that I assembled in
>> March. It makes the sound even if I am in TX test mode. Again, no
>> performance issues, just a slightly bothersome squeal / whine.
>>
>>
>>
>> On Sun, Jun 26, 2011 at 8:23 PM, Geoffrey Wolfwrote:
>>
>>> First off it was a great Field Day and my new K3 impressed me extremely not
>>> only in performance but in it's functionality.
>>>
>>> To kick off Field Day I installed a new KPA100 into the K3. I did all the
>>> necessary TX gain calibrations using a dummy load.
>>>
>>> One thing I noticed immediately was that I was hearing a very high pitched
>>> squeal coming from either the PA board or possibly the KIO3 (the board the
>>> amp plugs into). The squeal seems to vary in frequency each time the
>>> transmitter keys up (can only hear it when the radio is in TX). The squeal
>>> is not very loud but its loud enough for me to hear it if I listen closely.
>>> It doesn't seem to be power related. The squeal is there even if the radio
>>> is in TX but no power going out (RF Pwr set to 0W). The closest thing I can
>>> compare the sound to is perhaps a tiny leak in an air hose. Is this typical
>>> of a bad solder joint or something?
>>>
>>> This squeal only pertains to the new KPA100 installation. Before the amp
>>> was installed I didn't hear a thing.
>>>
>>> I should also note that nothing appears to be affecting performance. Puts
>>> out 100 watts no problem. Clean modulation, etc.
>>>
>>> --
>>> Geoffrey Wolf
>>> AB3LS (Amateur Radio Callsign)
>>> University of Pittsburgh '14
>>> gr...@pitt.edu
>>> liltechd...@me.com
>>>
>>> __
>>> Elecraft mailing list
>>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>>> Help: http://mailman.qth.net/mmfaq.htm
>>> Post: mailto:Elecraft@mailman.qth.net
>>>
>>> This list hosted by: http://www.qsl.net
>>> Please help support this email list: http://www.qsl.net/donate.html
>>>
>>
>>
> __
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft@mailman.qth.net
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

Re: [Elecraft] [K2] Erratic power control with base cw K2

2011-06-27 Thread Don Wilhelm

  Al,

Try it with regular keying - say a string of dots.  The LED bargraph is 
a good indicator of the instantaneous power output up to 10 watts - 1 
bar per watt.

The power control is intentionally more "sluggish" in TUNE than in 
normal keying as an assist to those who use a manual tuner.

The resolution on the 8 bit DAC controlling the VPWR level will produce 
about a +/- 0.5 watt variation from the power level that is set.

Moving the power control during a TUNE may produce some slightly erratic 
power level changes because there is a lot going on when you turn that knob.

What I am suggesting is that there may be no problem at all - check with 
normal CW keying.

73,
Don W3FPR

On 6/27/2011 4:05 AM, Alastair Couper wrote:
> I have a base K2 sn 1056, with a to b mods, including cw shaping mod, and
> the latest firmware. I have removed all options to ease troubleshooting.
> Turning the power control gives erratic power output, varying widely and
> randomly as I turn the control. If I turn the power control to max, then
> power is also max, but other positions are random. This happens on all
> bands, into 50 ohm load, and also using the antenna tuner option. Max
> power out is normal at about 15w, more or less. The rig works in all other
> aspects. Power supply shows 13.0 to 13.5 while transmitting.
>
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

Re: [Elecraft] K2 issues on field day

2011-06-27 Thread John_N1JM

Did you eliminate the idea it might of been RF? You might try it in place of
your K3 for awhile to see if it acts up at your home station.

73,
John N1JM K3 #2555
Arizona

--
View this message in context: 
http://elecraft.365791.n2.nabble.com/SSB-net-announcement-tp6279368p6520407.html
Sent from the Elecraft mailing list archive at Nabble.com.
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

Re: [Elecraft] K3: KPA100 Squeal

2011-06-27 Thread Adi Andrei

I have the same thing happening, similar series K3 (5k something) , also 
assembled in March.

Adi
2E0TTX


On 27/06/2011 13:38, Joe Harris wrote:
> I have very similar symptoms in my K3/100 (SN 5284) that I assembled in
> March. It makes the sound even if I am in TX test mode. Again, no
> performance issues, just a slightly bothersome squeal / whine.
>
>
>
> On Sun, Jun 26, 2011 at 8:23 PM, Geoffrey Wolfwrote:
>
>> First off it was a great Field Day and my new K3 impressed me extremely not
>> only in performance but in it's functionality.
>>
>> To kick off Field Day I installed a new KPA100 into the K3. I did all the
>> necessary TX gain calibrations using a dummy load.
>>
>> One thing I noticed immediately was that I was hearing a very high pitched
>> squeal coming from either the PA board or possibly the KIO3 (the board the
>> amp plugs into). The squeal seems to vary in frequency each time the
>> transmitter keys up (can only hear it when the radio is in TX). The squeal
>> is not very loud but its loud enough for me to hear it if I listen closely.
>> It doesn't seem to be power related. The squeal is there even if the radio
>> is in TX but no power going out (RF Pwr set to 0W). The closest thing I can
>> compare the sound to is perhaps a tiny leak in an air hose. Is this typical
>> of a bad solder joint or something?
>>
>> This squeal only pertains to the new KPA100 installation. Before the amp
>> was installed I didn't hear a thing.
>>
>> I should also note that nothing appears to be affecting performance. Puts
>> out 100 watts no problem. Clean modulation, etc.
>>
>> --
>> Geoffrey Wolf
>> AB3LS (Amateur Radio Callsign)
>> University of Pittsburgh '14
>> gr...@pitt.edu
>> liltechd...@me.com
>>
>> __
>> Elecraft mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:Elecraft@mailman.qth.net
>>
>> This list hosted by: http://www.qsl.net
>> Please help support this email list: http://www.qsl.net/donate.html
>>
>
>
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

Re: [Elecraft] K3: SWR meter readings on 10m..mystery solved...

2011-06-27 Thread VK7JB

I've solved my mystery.

I read in the archives that the KAT3 ATU is not completely out of circuit in
"bypass mode".  If I understand correctly, small values of L and C are used
to remove it functionally, but there is stray reactance that might
contribute to the higher indicated SWR on some bands.

So then I wondered if the KAT3 might need to be tuned at least once into a
50 ohm load for the "bypass" state to be correctly determined.  Made sense
in my imagination, and thinking on it,  I realised I'd never tuned the ATU
into a 50 ohm load before.

So I did that - tuned the KAT3 to the dummy load on the bands where it
previously indicated higher than expected in ATU bypass mode.  I let it do
its stuff and find a match for the dummy load, then bypassed the ATU.  

Now, in ATU "Bypass" mode, the K3 reads 1.0:1 SWR into the same dummy load
that it previously showed as 1.5:1.   Issue gone.

73,
John
VK7JB



--
View this message in context: 
http://elecraft.365791.n2.nabble.com/K3-SWR-meter-readings-on-10m-tp6519425p6520233.html
Sent from the Elecraft mailing list archive at Nabble.com.
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

Re: [Elecraft] K3: KPA100 Squeal

2011-06-27 Thread Joe Harris

I have very similar symptoms in my K3/100 (SN 5284) that I assembled in
March. It makes the sound even if I am in TX test mode. Again, no
performance issues, just a slightly bothersome squeal / whine.



On Sun, Jun 26, 2011 at 8:23 PM, Geoffrey Wolf wrote:

> First off it was a great Field Day and my new K3 impressed me extremely not
> only in performance but in it's functionality.
>
> To kick off Field Day I installed a new KPA100 into the K3. I did all the
> necessary TX gain calibrations using a dummy load.
>
> One thing I noticed immediately was that I was hearing a very high pitched
> squeal coming from either the PA board or possibly the KIO3 (the board the
> amp plugs into). The squeal seems to vary in frequency each time the
> transmitter keys up (can only hear it when the radio is in TX). The squeal
> is not very loud but its loud enough for me to hear it if I listen closely.
> It doesn't seem to be power related. The squeal is there even if the radio
> is in TX but no power going out (RF Pwr set to 0W). The closest thing I can
> compare the sound to is perhaps a tiny leak in an air hose. Is this typical
> of a bad solder joint or something?
>
> This squeal only pertains to the new KPA100 installation. Before the amp
> was installed I didn't hear a thing.
>
> I should also note that nothing appears to be affecting performance. Puts
> out 100 watts no problem. Clean modulation, etc.
>
> --
> Geoffrey Wolf
> AB3LS (Amateur Radio Callsign)
> University of Pittsburgh '14
> gr...@pitt.edu
> liltechd...@me.com
>
> __
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft@mailman.qth.net
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>



-- 
Joe Harris, N1QD
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

[Elecraft] Flying with K2

2011-06-27 Thread David Andrews

Thanks to everyone who offered advice. All agreed on - K2 OK, internal SLA
is not. Paperwork - licence copy (and manual). 

 

73 David G4CWB

 

__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

[Elecraft] [K2] Erratic power control with base cw K2

2011-06-27 Thread Alastair Couper

I have a base K2 sn 1056, with a to b mods, including cw shaping mod, and  
the latest firmware. I have removed all options to ease troubleshooting.  
Turning the power control gives erratic power output, varying widely and  
randomly as I turn the control. If I turn the power control to max, then  
power is also max, but other positions are random. This happens on all  
bands, into 50 ohm load, and also using the antenna tuner option. Max  
power out is normal at about 15w, more or less. The rig works in all other  
aspects. Power supply shows 13.0 to 13.5 while transmitting.

The display info smoothly follows the effects of turning the knob while  
receiving, so the info is making it into the CPU, and the pot is OK. If I  
push TUNE, then the power output level at the watt meter adjusts as I turn  
the control. But the level shown on the watt meter is quite variable with  
regards to the control setting. If I leave the control at half, one push  
of the TUNE will give 15w, and the next push will give 2w. Also the watt  
meter reading jumps to max intermittently as I turn the control back and  
forth from zero to max.

The voltage from VRFDET is making it back to pin 2 of the CPU, and it's  
value reflects the level that I see at the output on the watt meter at  
R66. The voltage at VPWR is erratic when turning the power control, as is  
the voltage at VALC, but those two voltages seem to be about equal, as  
best I can measure. (No scope). The VALC at R98 on the RF board is the  
same as at Q8 on the control board, so that signal is making it. As I turn  
the control in TUNE, I see from around ~.4 volts to ~1.2 volt at 15 watts  
out. Higher voltage on VALC does make more output power, so that potion is  
OK.

If I plug in the KSB2 board, then on SSB I can get what is apparently  
normal smooth power control, but the problem is still there in CW. Initial  
keying sometimes give HiCur readings. So the loop on CW is not working for  
some reason, and I am open to further suggestions.

I have been reading posts about R98, which is at 270 ohms. Not sure if  
that applies here.

tnx,

Al NH7O
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

[Elecraft] K3: SWR meter readings on 10m...

2011-06-27 Thread VK7JB

Hello All,

I've just noticed that the SWR meter on my K3 is reading higher than
expected on 10m.

I have 2 different 50 ohm dummy loads. Both have <1.1:1 as measured by my
external LP-100A meter and  my MFJ 259b AA.  

If I connect either dummy load directly into the ANT1 connector of the K3
(no connector lead at all or a very short lead between the DL and the K3
ANT1) and read SWR on 10m, it is measured by the K3 as 1.5:1.   On 15m, SWR
reads 1.4:1 but on 20m and lower bands, the SWR displayed by the K3 accords
with the LP-100A external meter (1.1:1).

Is this frequency-related phenomenon common to all K3's, or just mine?  Is
any adjustment possible or am I sweating over nothing.  Perhaps this SWR
difference is within spec @ 28MHz??


73,

John
VK7JB

--
View this message in context: 
http://elecraft.365791.n2.nabble.com/K3-SWR-meter-readings-on-10m-tp6519425p6519425.html
Sent from the Elecraft mailing list archive at Nabble.com.
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

56 matches

Mail list logo