Re: [Elecraft] Dynamic Mics on K3

[Fern Rivard]

What does the transmit audio sound like on the hf bands?  Fern



- Original Message - 
From: "Giulio Pico - IW3HVB" 
To: 
Sent: Tuesday, February 10, 2009 2:39 PM
Subject: [Elecraft] Dynamic Mics on K3


I'm trying to use a dynamic mic with the K3 (KIO3 MIC INPUT high gain) 
but I can't be satisfied with the modulation (I'm listening with another 
radio on 144 MHz using an XV144 with the K3).
If I keep the compression level below 15 the mod is awful. Tried with 4 
or 5 different dynamic mics, but the results are almost the same.
I made a couple of ipothesis:
Balanced Mics doesn't match too well with the unbalanced input of the radio.
The mic level is too low (I tried to push with mic gain and TXG VCE, but 
no results so far).
Any suggestion?

73 de Giulio IW3HVB
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Re: [Elecraft] Power output problem with K3

[Fern Rivard]

Re check the configuration of the filter used in transmit. I had a similar 
problem when I first put my K3 together.  Fern


- Original Message - 
From: N1IX 
To: elecraft@mailman.qth.net 
Sent: Monday, January 26, 2009 8:15 PM
Subject: [Elecraft] Power output problem with K3


   
I suddenly developed a RF power output problem with my K3:(

The power output just drops to zero. A quick power cycle fixes the problem 
temporarily. (not enough time for the K3 to cool off)
These are the things I have done so far.
There is no error message.
If I don't use for the transmitter for quite a while it continues to work much 
longer.

1. It happens on any band and with different antennas.
2. It happens at 5W as well as 100W
3. It happens when transmitting into a dummy load.
4. It happens in SSB as well as CW.
5. Antenna port 1 or 2

Has anyone else seen this problem? 
Can you think of anything else I should try?

Dave N1IX







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Re: [Elecraft] QRPNEW K3 review

[Fern Rivard]

We'll have to assume that he DOES NOT have a call sign.  I sure like that dog 
attachment.   Fern


- Original Message - 
From: "DOUGLAS ZWIEBEL" 
To: "Elecraft Reflector" 
Sent: Monday, January 26, 2009 8:52 AM
Subject: [Elecraft] QRPNEW K3 review


Just remember

http://www.lib.wayne.edu/services/instruction_tutorials/searchpath/mod5/images/dog.JPG

If s/he wants credibility, s/he should AT LEAST use her/his callsign.

de Doug KR2Q
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Re: [Elecraft] Desktop microfone for the K3

[Fern Rivard]

Hi Werner:
The Yaesu MD-1 desk microphone works just fine on my K3 with excellent 
transmit audio and plenty of it. So I would think that you need to make sure 
that your setting on the K3 are correct for it. I have also used the Shure 444D 
desk mic with very good transmit audio as well.
73 from Fern  VE7GZ




- Original Message - 
From: "Dr. Werner Furlan" 
To: 
Sent: Friday, January 16, 2009 6:08 AM
Subject: [Elecraft] Desktop microfone for the K3



I'd like to add a desktop microphone to my K3. I have left a Yaesu MD-1 
from earlier times, and made a cable for the K3. It works, but the modulation 
is rather low volume in comparison to the Heil HC-5 I use. 
What about the Kenwood microphones, like the MC-60 or MC-80?
Are there any recommendations or experiences with these types?

thank you for your input!

73! de Werner
OE9FWV

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PGP-Key: 
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Mobile +43 664 6340014


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Re: [Elecraft] ESD sensitive tuning knob

[Fern Rivard]

Sig:
   I had the exact same problem with my K3 shortly after I received it. 
What is happening is that the encoder for vfo A is NOT grounded properly. What 
you'll have to do, is remove the vfo A knob and then the nut and washer holder 
the encoder to the front panel and very carefully remove a bit of paint just on 
the edges of the hole where the encoder goes thru so that the star washer will 
bite into the front panel to give you a proper ground. You may want to protect 
the front panel close to that area with some masking tape just in case your 
tool, to scrap a bit of that paint off, happens to slip and this way you won't 
damage the front panel. 
  Good luck from Fern  VE7GZ


- Original Message - 
From: n...@verizon.net 
To: elecraft@mailman.qth.net 
Sent: Saturday, January 10, 2009 4:46 PM
Subject: [Elecraft] ESD sensitive tuning knob


I have not posted very often to this reflector even though I get and read the 
daily digests, so I hope someone can be of help.
Since I got my K3 in February of last year, I have repeatedly had a problem 
that seems to be ESD related when USING my K3. We are currently experiencing 
some cold weather and this makes the problem more evident, thus my assumption 
that it is ESD related and this posting.

When I sit down to use the radio (which I now have on an ESD protective mat) I 
can almost always expect the radio to go through a rapid reboot (it turns off 
and then on) and lands on a new frequency as soon as I touch the main tuning 
knob. If I touch anything else on the radio, including the case, this rebooting 
does not occur. Only the main tuning knob seems to be involved. If I ground 
myself before touching the knob, the problem does not occur. If I am sitting 
there for a while and just move the chair (A Herman Miller) after grounding 
myself and then I touch the knob it reboots the radio.

The knob is not metal and I don't understand this weird action. I have resorted 
to wearing a wrist strap that is grounded (it comes with the mat), but that is 
really very annoying, especially during long sessions, like a contest. I have 
been using all sorts of radios in this station for the past 29 years and my K3 
is the only one that has ever had such a problem. Any ideas??

Sig, N3RS 





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[Elecraft] K3: Keying SB-200

[Fern Rivard]

Ralf, just make up a simple interface between your K3 keying and the keying 
input of your SB-200 or look for one of those interfaces that Yaesu had 
available and I believe that Ameritron offers one as well.Fern   VE7GZ




- Original Message - 
From: "Ralph Parker" <[EMAIL PROTECTED]>
To: 
Sent: Saturday, November 22, 2008 5:26 PM
Subject: [Elecraft] K3: Keying SB-200


I'm just about to connect the KEY OUT to the SB-200 relay.
I hope the little transistor in the K3 can take it!

VE7XF

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Re: [Elecraft] Using KXV3 with Kenwood SM230

[Fern Rivard]

Ken:
You'll have to tweek the oscillator in the SM-230 to center the incoming 
signals  in the centre of the passband of the I F .  Fern


- Original Message - 
From: "Ken Widelitz" <[EMAIL PROTECTED]>
To: 
Sent: Saturday, November 08, 2008 12:14 PM
Subject: [Elecraft] Using KXV3 with Kenwood SM230


The Kenwood SM-230 has an input center frequency of 8.830 Mhz. The KXV3's IF
OUT is 8.215 Mhz.

Not surprisingly, I see signals on the SM-230, but can't find them on the
K3.

How do I resolve this discrepancy?

73, Ken, K6LA / VY2TT


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[Elecraft] re elecraft mics

[Fern Rivard]

Good morning Erik:  If you would like a good comparison between a dynamic mic 
and the MH-2 electret mic, I would be glad to do it with you. I am using a 
dynamic mic normally used with a commercial vhf/uhf mobile which also has the 
UP/DOWN keys and have compared with the electret MH-2 hand mic and there is 
really no comparison. With the MH-2, I have to fiddle around with the transmit 
audio equilizer while the  dynamic mic is perfect as is.Now a problem with the 
MH-2 is that the curly cord is way too stiff while the dynamic mic that I use 
has a nice long super flexible curly cord. I have also tried a Kenwood dynamic 
hand mic but found that the audio from that mic really sucked as it has way to 
much bass which can be compensated some but it still is no match for my 
commercial hand mic.  73 from Fern with K3 #412
- Original Message - 
From: "Erik N Basilier" <[EMAIL PROTECTED]>
To: "elecraft" 
Sent: Wednesday, November 05, 2008 12:57 AM
Subject: Re: Re[Elecraft] quest


When I received my MH-2, I almost put it up for sale because it is so bulky 
in the
hand, especially with the non-removable hanger, and yes, the ptt button is a 
bit of
a pain. Then I listened to it with the monitor and found that the sound 
quality is
much better than the dynamic Kenwood mike I was comparing it to. The MH-2
stays! In fact in other audio applications I have always found that an 
electret mike
is superior to a dynamic.

Erik K7TV

- Original Message - 
From: "Stephen Prior" <[EMAIL PROTECTED]>
To: "elecraft" 
Sent: Wednesday, November 05, 2008 12:33 AM
Subject: Re: Re[Elecraft] quest


> This has been exactly my experience too.  The MH-2 is superb and regularly
> receives unsolicited reports of excellent audio.  My only criticism of it 
> is
> that the ptt spring is too strong!
>
> 73 Stephen G4SJP
> K3, K2, KX-1
>
>
> On 05/11/2008 05:37, "-.-.  --.-N3TU -.-.  --.-" 
> <[EMAIL PROTECTED]>
> wrote:
>
>>
>>
>> I found out that the hand mic from Elecraft works best on the EQ. I have
>> tried different "studio" style mics and it seems like the EQ goes wider 
>> with
>> the one from Elecraft. (MH2). The next best mic in second place was one 
>> of
>> the gamers mics with the foot pedal. The Kenwood and the ADI radio plugs
>> work on Elecraft if you use a headset with a foot pedal. It's amazing 
>> that I
>> can get more lows and highs from the little hand mic and had confirmed my
>> findings over air. The stations I've talked told me that the hand mic 
>> sounds
>> deeper, richer and more brilliant on the EQ than the other mics that were
>> adjusted again on the EQ again. I think the money was well spent on the 
>> hand
>> mic and have no regrets.
>>
>>
>>
>>
>> Phil LaMarche-2 wrote:
>>>
>>> I'm considering he purchase of a K3 to replace my 756 Pro III.  I have
>>> wonderful audio with the Icom and would like some comments on the K3 
>>> audio
>>> and microphone recommendations for the best audio w/o external help. I'm
>>> going to get it pretty well loaded.
>>>
>>> Thanks
>>>
>>> Phil
>>>
>>>
>>> Philip LaMarche
>>> LaMarche Enterprises, Inc.
>>> www.instantgourmetspices.com 
>>>
>>> www.w9dvm.com 
>>> 800-395-7795 pin 02
>>> 727-944-3226
>>> FAX 727-937-8834
>>> NASFT 30210
>>> W9DVM
>>>
>>>
>>>
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>>>
>
>
>
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[Elecraft] K3 What mics are proplr using for SSB?

[Fern Rivard]

Gene:

Looking at your transmit audio equilizer settings. You would accomplish the 
very same effect if you dropped all of your settings by 3 db. In other words 
set as follows:
50 @ 0,  100 @ +4, 200 @ 0, 400 @+1, 800 @ -3, 1.2 @ +4, 2.4 @ +4, 3.2 @ +4.

I have been using a commercial dynamic hand mic with the UP/DOWN features which 
I do NOT have to use the transmit audio equilizer at all as the audio sounds 
best with all settings at zero. This tells me that this mic is a perfect match 
for my voice for the K3. I get very similar results when I used my Shure 444D 
dynamic mic where again I do NOT require the use of the transmit equilizer as 
it sounds best in all settings at zero. However, if I use the optional electret 
hand mic from Elecraft then I have to play with the transmit audio equilizer to 
make it sound better but it never sounds as good as either of my dynamic 
microphones.
Just my 2 cents worth from Fern   VE7GZ with K3 serial #412.




- Original Message - 
From: "Gene W2BXR" <[EMAIL PROTECTED]>
To: 
Sent: Wednesday, October 22, 2008 6:44 PM
Subject: RE: [Elecraft] K3 What mics are proplr using for SSB?



I tried 3 mics with my K3, Goldline G4 wide setting, RE20, and Audio-Technica
3035 which needs a phontom pwr supply.  All worked great and received
glowing audio reports. All were previously used with a Kenwood ts870 and no
wiring changes were made to the mic plug.  I use a hand held PTT switch.

TX eq settings were the same for all: 50 +3, 100 +7, 200 +3, 400 +4, 800-0,
1.2,2.4,3.2 +7.
 Mic Gain   Comp.
G4 15   7
RE20  11   22
3035   612

With ESSB turned on (3.5) reports were better yet.  I do not use ESSB very
often but very nice to have.  My voice I feel is crummy and not very
suitable for bradcasting.

Currently use the 3035, RE20 is with another rig, G4 is backup.

Your milage may vary :>)

Gene



Bruce McLaughlin-2 wrote:
> 
> I use a Heil proset with very good results.
> 
> Bruce - W*FU
> 
> -Original Message-
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] On Behalf Of rOn
> Sent: Wednesday, October 22, 2008 10:56 AM
> To: elecraft@mailman.qth.net
> Subject: [Elecraft] K3 What mics are proplr using for SSB?
> 
> Looking to find what people are using for SSB mics.
> 
> Thanks
> 
> rOn
> 
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[Elecraft] testing

[Fern Rivard]

Looks like my internet server is having problems as I haven't seen any traffic 
the past few days on here.  Fern
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[Elecraft] re KBPF3 for second rcvr

[Fern Rivard]

According to Kathie, if one wants the general coverage feature in the 
second receiver, we will need to add a second KBPF3 band pass filter set up.
Fern
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Re: [Elecraft] re ON-OFF on K3

[Fern Rivard]

Hi Cookie:

I run my K3 on a switching ps but the way it is set up now, this means that 
one that to first turn the ps on and then the K3 on. A lot of the commercial 
land mobile radios have an option to set the mobile so that as soon as it sees 
power from the ignition switch, the radio turns on so the operator doesn't 
forget to turn it on. It's an excellent feature and has been around for many 
years.
Fern


- Original Message - 
From: "WILLIS COOKE" <[EMAIL PROTECTED]>
To: "Fern Rivard" <[EMAIL PROTECTED]>; "Elecraft Reflector" 

Sent: Tuesday, August 19, 2008 11:03 AM
Subject: Re: [Elecraft] re ON-OFF on K3


My first thought on the matter is to agree with Fern,
but after thinking about it for a while, pressing the
POWER button is not so hard and it will allow the K3
to turn itself off on low voltage and protect your
battery for battery operations.  I have come to think
of this as a good feature even though I am not set up
for battery operation at this time.  It will also let
you know right away if you have a loose power
connection or a defective power supply.  I vote to
keep the K3 like it is.

Cookie, K5EWJ

--- Fern Rivard <[EMAIL PROTECTED]> wrote:

> A feature that would be nice to have on the K3,
> is for the radio to remember to come back on without
> pushing the ON/OFF switch on the transceiver when
> the power was shut off at the power supply end. This
> is a feature that has been available on a lot of the
> commercial land mobile radios for years. 
> Thanks from Fern VE7GZ with K3 #412
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Willis 'Cookie' Cooke 
K5EWJ


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[Elecraft] re ON-OFF on K3

[Fern Rivard]

A feature that would be nice to have on the K3, is for the radio to 
remember to come back on without pushing the ON/OFF switch on the transceiver 
when the power was shut off at the power supply end. This is a feature that has 
been available on a lot of the commercial land mobile radios for years. 
Thanks from Fern VE7GZ with K3 #412
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Re: [Elecraft] re position of roofing filters on KRX3 2nd rx

[Fern Rivard]

Ok Dick, many thanks for that info.  Much appreciated.   Fern


- Original Message - 
From: "Dick Dievendorff" <[EMAIL PROTECTED]>
To: "'Fern Rivard'" <[EMAIL PROTECTED]>; 
Sent: Tuesday, August 12, 2008 9:02 AM
Subject: RE: [Elecraft] re position of roofing filters on KRX3 2nd rx


There is a shield that surrounds the RF receiver board that the filters are
mounted to.

The KRX3 has a few other boards that remain in place, but the main shielded
RF board has to come out to change filters.  

With practice the shielded board comes out very quickly. 

Dick, K6KR


-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Fern Rivard
Sent: Tuesday, August 12, 2008 7:57 AM
To: elecraft@mailman.qth.net
Subject: [Elecraft] re position of roofing filters on KRX3 2nd rx

Are the roofing filters accessible on the KRX-3 receiver without having to
pull the receiver out of the K3?  Thanks from Fern

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[Elecraft] re position of roofing filters on KRX3 2nd rx

[Fern Rivard]

Are the roofing filters accessible on the KRX-3 receiver without having to pull 
the receiver out of the K3?  Thanks from Fern

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Re: [Elecraft] annoying resonance with internal speaker in K3

[Fern Rivard]

Ok Nick, thanks for your comments so I now know that I'm not the only one 
with that annoying problem. It sure didn't impress anyone when I did a "Show 
and Tell" for some of the guys in our ham club yesterday when I took the K3 to 
a picnic get together. I sure hope that Elecraft takes this seriously as I 
would think that they've come across that before and should have a simple fix.  
Fern


- Original Message - 
From: "Nick-WA5BDU" <[EMAIL PROTECTED]>
To: "Fern Rivard" <[EMAIL PROTECTED]>
Cc: "Elecraft List" 
Sent: Monday, August 11, 2008 5:32 AM
Subject: Re: [Elecraft] annoying resonance with internal speaker in K3


I've got this too. I did some things to eliminate top cover resonances 
and then I began to notice this.  It's a little more subtle than a 
continuous buzzing along with the tones of CW. Sort of a scratchy sound. 

I thought it was in the audio, but no, it's gone when I use headphones 
or an external speaker.  I thought it might be an artifact of 
processing, but no, it's still there when I turn processing off.   Band 
noise is enough to cause the sound on a moderately noisy band (not hard 
to find these days).  Moderate (but not excessive) volume is required to 
being it in.  I did note that as I crank up the Lo Cut, the noise 
disappears when I cross 250 or 300 Hz. 

Thus far, I've removed some of the things I did to dampen the top cover 
plate.  I removed the top and looked for any loose screws and tapped 
various components for sound.  Removed the bottom cover and attempted 
the same.  No luck.  I hate the thought of disassembling the entire 
front of the rig ...

73--Nick, WA5BDU


Fern Rivard wrote:
> I have a K3 serial #412 which has always had an annoying resonance from 
> the internals of the radio cabinet somewheres when using the internal 
> speaker. I thought that it may have been the top lid which did that so I 
> tried to isolate the top lid by temporarily adding some electrical tape 
> between the top and when it meets the the top of the radio. However, that did 
> NOT accomplish anything for me. Has anyone found a permanent cure for that 
> annoying resonance? 
>
>   



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[Elecraft] Re: [K3] annoying resonance with internal speaker in K3

[Fern Rivard]

Yes Stewart, I DO have the stiffener in place otherwise there would be some 
exposed holes on the top lid! I temporarily put some black electrical tap 
between the contact areas where the top lid meets the radio but that didn't 
stop any of it. The resonance appears to come from down below the pa unit. Fern


- Original Message - 
From: "Stewart Baker" <[EMAIL PROTECTED]>
To: "David Ferrington, M0XDF" <[EMAIL PROTECTED]>
Cc: "Fern Rivard" <[EMAIL PROTECTED]>; "Elecraft List" 

Sent: Monday, August 11, 2008 4:14 AM
Subject: Re: [K3] annoying resonance with internal speaker in K3



Oh Yes !

73
Stewart G3RXQ
On Mon, 11 Aug 2008 10:56:36 +0100, David Ferrington, M0XDF wrote:
> Strange, mine not only does not do that, but I can't make it do 
that
> even if I tap it - do you have the chassis stiffener in place 
correctly?




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[Elecraft] annoying resonance with internal speaker in K3

[Fern Rivard]

I have a K3 serial #412 which has always had an annoying resonance from the 
internals of the radio cabinet somewheres when using the internal speaker. I 
thought that it may have been the top lid which did that so I tried to isolate 
the top lid by temporarily adding some electrical tape between the top and when 
it meets the the top of the radio. However, that did NOT accomplish anything 
for me. Has anyone found a permanent cure for that annoying resonance? 
This afternoon I took my K3 for a bit of "Show and Tell" to a get together 
picnic that our local ham club put on  this afternoon. Not having a spare 
antenna conveniently laying around, I just took a small roll of telephone 
extension wire "4 conductor in it) so I soldered all four wire together with 
enough solder residue so that it would just fit inside the SO-239 ant#1 rear 
connector. I guestimate that I had an approximate lenght of 35 feet or so of 
wire that I strung between trees. I had the K3 on a padded surface on the hood 
of my vehicle to make it handy for the audience to see it. I tried the 
automatic antenna tuner on all bands from 80 to 10 meters with a resultant 
perfect match from 75 meters all the way to 10 meters with 1:0 to 1 match. 
Unfortunately band conditios were not very good today.

73 from Fern   VE7GZ




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[Elecraft] K3 noise

[Fern Rivard]

Hi Randy:

You might want to check your power supply especially if it is a switching 
type as it could be the source of your noise on those two bands.
Cheers from Fern with K3 #412



- Original Message - 
From: "Randy Downs" <[EMAIL PROTECTED]>
To: 
Sent: Sunday, August 10, 2008 4:08 PM
Subject: [Elecraft] K3 noise


Anybody have more noise on 10 and 12 meters than the other bands? My K3 s/n 
1194 with no ant. hooked up and the 200 amp breaker tuned off and running on a 
gel cell has an S2 to S4 noise on 10 and 12 all of the time. S0 to S1 on the 
other bands. I also get "static crash" noises intermittently on these bands.  I 
live 1/2 mile from anyone else and have no such noises on my other rigs with or 
without the ant. hooked to them. I believe I have a problem with the K3. It 
does it worse when I first turn it on and then quiets down somewhat. Sometimes 
it works perfectly.
Randy
K8RDD
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[Elecraft] Re: New K3 Power output problem

[Fern Rivard]

Hi Barry:

It looks like your radio will need calibration of the power settings which 
as NOT shown in the owners manual. You will need to get that info from Elecraft 
or someone else on this reflector that has that info hany. I had to do that 
with my K3 back in Feb of 08 as it did not have full spec output on all bands
73 from Fern  VE7GZ with K3 #412



- Original Message - 
From: "Barry Simpson" <[EMAIL PROTECTED]>
To: "'Elecraft'" 
Sent: Saturday, August 09, 2008 3:31 AM
Subject: [Elecraft] New K3 Power output problem


I have just completed building K3 #1397. It includes the KPA3, KXV3, KBPF3
and four filters.

 

It went together very well and all is working fine so far except the power
output.

 

I have done the 50W calibration per band and that produces an output of 50W.
However a setting on the power control of 71W gives 100W out and 76W gives
an actual 120W out. From there the power controls gives an output of up to
and beyond 150W.

 

I have tried recalibrating and I have downloaded the latest but to no avail.
I have also emailed Elecraft but given it is the weekend I do not expect to
hear from them for a few days.

 

I wonder if anyone else has had this problem and if so how it was cured. Or
has anyone any suggestions. I think I might take out and reseat the KPA3 in
case it is a bad contact but I don't think it is that.

 

Barry Simpson  VK2BJ

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Re: [Elecraft] K3 Microhpone

[Fern Rivard]

Charles:

You must be kidding as real serious hams DO NOT use heil mics. They are 
overpriced and have lousy audio. One gets much nice transmit audio using good 
quality dynamic microphone rather than those cheap elecret cartridges.
- Original Message - 
From: "Charles Harpole" <[EMAIL PROTECTED]>
To: 
Sent: Friday, August 08, 2008 10:23 PM
Subject: RE: [Elecraft] K3 Microhpone



Real serious hams use Heil headphone/mic set.

Ideally have the 5 and the 4 elements switchable as

in one model Heil sells.  All other discussions

of other choices are just for fun.  73


Charles Harpole








>
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Re: [Elecraft] K3 Microhpone

[Fern Rivard]

Hi Gary:

Look no further as I've found that the Shure 444D is the ideal base 
microphone for the K3 except for the fact that it does not have the UP/DOWN 
keys feature.  Now if you want a very nice sound dynamic hand microphone with 
the UP?DOWN keys feature, I can help you out with this as I have stock on 
those. They are originally made for a commercial land mobile radio but the 
resultant transmit is equivalent to that of the Shure 444D desk mic and that is 
without even having to use the 8 band transmit audio equilizer.

73 from Fern   VE7GZ



- Original Message - 
From: "Gary Gregory" <[EMAIL PROTECTED]>
To: 
Sent: Friday, August 08, 2008 3:58 PM
Subject: [Elecraft] K3 Microhpone


Hello Again,

I agree with an earlier post from Steve. I will sit under my favourite Gum
tree in the back yard, under my nice 80M full wave loop and silently pray
that the gods at Aptos are reading these posts closely and that somewhere in
the dark of the night in Aptos an idea will be born to design, build and
market the "perfect" microphone for those of us who have a distinctly "Non
Professional Radio Announcer Voice" so we can be all happy little campers.

The K3 is now without a doubt the best TCVR on the market, we just need to
have a really good tailor made mic...oh..and while I am adding to the wish
list..can we have some knobs and buttons as well as a "Locking PTT
Bar/Button" on this (hopefully) perfect new base mic...Please..¿

OK, I will climb off my soapbox and journey down into the bomb
shelter..after I turn on my incoming missile deflector:-)

73's
Gary
K3/100 #679
Stokers...we get ya goin'






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[Elecraft] re ESSB in Pacific North west

[Fern Rivard]

Anybody in the pacific northwest that has installed the ESSB in their K3 as I 
would like hear what it sounds like?
Fern  VE7GZ



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[Elecraft] Problems with K3 KXV3 IF Output Level?

[Fern Rivard]

Good evening Lyle:

I honestly don't know where you're getting those levels from as I already 
reported to you back in April/08 that the levels at the I F output were pretty 
well non existent. There is just no tracking of levels at the I F out with what 
is fed into the antenna input of the receiver. I even used a 15 db amplifier 
from Jack Smith of Clifton Laboratories without any luck as there is simply no 
levels to play with there. I believe that Jack Smith also queried you about 
that without getting a proper reply as yet from you. I realize that nobody is 
perfect but why are we dogging a proper reply and/or fix for that?
Fern with K3  #412



- Original Message - 
From: "Lyle Johnson" <[EMAIL PROTECTED]>
To: "Don Ehrlich" <[EMAIL PROTECTED]>
Cc: "Elecraft Reflector" 
Sent: Wednesday, July 30, 2008 9:18 PM
Subject: Re: [Elecraft] K3 KXV3 IF Output Level?


> The 2nd antenna input works as expected but my oscilloscope shows no 
> signal (<5 mV) coming from the IF Output on the KXV3.  What IF signal 
> level should I be seeing?

It will be about the same level as at the antenna, or perhaps less, 
depending on settings of PRE, ATT, etc.

73,

Lyle KK7P

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Re: [Elecraft] 1.8 or 2.1 kc Filter

[Fern Rivard]

Hi Tom:

I have the 2.1 filter with my K3 and it does sound a bit narrow compared to 
the 2.1 khz filter that the collins s-line used for years so I wouldn't bother 
with the 1.8 khz filter. I've tried a 1.8 filter in an Icom IC-706 and did not 
like it either.
Just my 2 cents worth from Fern  VE7GZ  with K3 #412





- Original Message - 
From: "Tom Childers, N5GE" <[EMAIL PROTECTED]>
To: "Mike Miller" <[EMAIL PROTECTED]>
Cc: 
Sent: Friday, July 11, 2008 6:17 PM
Subject: Re: [Elecraft] 1.8 or 2.1 kc Filter


On Fri, 11 Jul 2008 14:51:24 -0500, "Mike Miller" <[EMAIL PROTECTED]> wrote:

>Anyone have experience with 1.8 and 2.1 kc filters for the K3?
>Trying to decide which one to get..
>
>I am a DXer exclusively..not a contester...
>work CW rarely
>
>
>Does the audio from 1.8 sound too pinched? 
>I just dont want to hear a 59+10 signal that is 3 kc..from the frequency I am 
>listening on
>
>any thoughts? on what filters to get..
>
>Mike Miller KA5SMA
[snip]

I've had 1.8 filters in many different rigs over the years and found that I
rarely used them because, in my opinion, they are too narrow for SSB, making it
sound tinny to me.

Tom, N5GE - SWOT 3537 - Grid EM12jq

"Those who would give up 
Essential Liberty to 
purchase a little Temporary 
Safety deserve neither 
Liberty nor Safety" 

An excerpt from a letter 
written in 1755 from the 
Assembly to the Governor 
of Pennsylvania.

Support the entire Constitution, not 
just the parts you like.

http://www.n5ge.com
http://www.eQSL.cc/Member.cfm?N5GE

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Re: [Elecraft] Switching supplies and the K3

[Fern Rivard]

The early Samlex switching power supplies were on the noisy side but they have 
corrected that problem years ago. I personally use the Samlex SEC 1235M 
switching supply with my K3 and certainly do not get any noise from it.
73 from Fern  VE7GZ with K3 #412



- Original Message - 
From: "Phil & Debbie Salas" <[EMAIL PROTECTED]>
To: 
Sent: Tuesday, July 08, 2008 7:56 AM
Subject: [Elecraft] Switching supplies and the K3


"Same here. I have two of these supplies, and have yet to hear a
peep of RF noise from them.  73 Stewart G3RXQ

"I am having very good performance from the SEC 1223 which is the
same supply I use with the K2/100.  If it does generate any noise I have yet
to hear it.  Bruce-W8FU"

I'm using a SEC-1235.  It is also RF quiet and works well.  I modified mine 
by adding Powerpole connectors to the back, and changed the fan circuitry so 
that the fan runs at slow speed all the time (still full speed if/when 
necessary).  Info is on my website in the "Equipment Modification" section 
at www.ad5x.com.

Phil - AD5X 

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[Elecraft] K3 Filter prices

[Fern Rivard]

Jerry:

I don't know if you own a K3 or not but if you don't then you should invest 
in one before knocking the K3 down. The fact that Sherwood Engineering and 
others have found the K3 to surpass the receivers in those expensive radios 
like the IC-7800 and the FTDX-9000,  should be enough proof of the performance 
of the K3.  I have owned many different receivers/transceivers over my ham 
career and I honestly have not found anything yet to be the receiver in the K3.
Just my 2 cents worth from Fern with K3 #412.






The high prices of the roofing filters for the K3 and optional filters for
other rigs reminds me of a little history.



Nevertheless, I find it especially disturbing having to pay these modern
prices considering that the filters have apparently not been designed or
chosen for good IMD performance or advantageous group delay characteristics.
Also, some filters are reputed to have been defective. Of course, the
filters may not be totally to blame for the mediocre front end performance
of the K3 (compared with the professional-level performance that some of us
had hoped for.)

Jerry  AI6L




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[Elecraft] re audio distortion when using auto notch on K3

[Fern Rivard]

I just spoke to a friend who has K3 vintage #1021 which he received mid june. 
He's having severe receive audio distortion when activating the auto notch. 
This will happen on signals S9 and stronger. He thinks that the radio has 
firmware 1.73 but couldn't figure out to bring it up. How does one bring up the 
firmware version?

Fern


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Re: [Elecraft] Lightness of the K3

[Fern Rivard]

Hey you guys, better put a brick on top of it or a chunk of lead to nail it 
down to your desk. Most people complain that their rig is too heavy and now we 
have the supper light K3 which don't weigh a lot but performs better than any 
other rig on the market. This kind of reminds me that years ago the land mobile 
import radios had a habit of putting some weights inside their hand mic as most 
radio users thought that if the mic was very lite that it then must have been 
poor quality. They were simply trying to make them feel heavy like the Motorola 
hand mics. I just don't get it with always someone bitchin' and nit pickin' 
this awsome performing radio. Please give it a rest and let the folks at 
Elecraft do their stuff.
You all have a good day from Fern with K3 #412



- Original Message - 
From: "Augie Hansen" <[EMAIL PROTECTED]>
To: "K9ZTV" <[EMAIL PROTECTED]>
Cc: "Elecraft" 
Sent: Monday, June 30, 2008 9:40 PM
Subject: Re: [Elecraft] Lightness of the K3


K9ZTV wrote:
> For the life of me I can't figure out why you guys are having this 
> problem unless you are using stripped-down versions of the K3 sans 
> amplifier, ATU, etc. which would mean a lighter rig, I suppose.  Or 
> else the surface your K3s are sitting on have been waxed or polished.

My K3 is fully loaded with all currently available options including the 
100 watt PA. It sits on a shelf just above the laptop computer used for 
logging and other functions. I haven't polished the shelf, but it is 
quite smooth.

> I can push and hold any button on the front panel, including those on 
> the left side, and the rig simply doesn't move.  It's sitting smack 
> dab on top of an FT-1000D with all four K3 feet in contact with the 
> painted top, no bail being used, and it is completely 
> rock-squat-dead-immovable with ANY button activation.

Aren't you the lucky one? I ran additional tests the K3's susceptibility 
to sliding by placing it on top of several other rigs and pushing as in 
my earlier "shelf" test. It was unmovable in all of the tests, 
apparently without regard to the cost of the subordinate radio. The 
relative roughness of the painted surfaces gives the feet on the K3 
greater grip than the smooth shelf offers. I'll continue to use the 
plastic shelf liner as it is only 1/32 inch thick and a lot cheaper than 
an FT1K. Other alternatives, such as roughing up the shelf surface with 
sandpaper, don't appeal to me.

Cheers,

Gus Hansen
KB0YH


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Re: [Elecraft] K3 for Field Day at 120W

[Fern Rivard]

Mark:

The K3 is rated at 100 watts so why in the world would you want to mess 
things up with its spectral purity by running it at a higher power level. 
Nobody will ever notice a bit of difference in your signal strength between 100 
watts or 120 watts. This is like running an engine that is rated at say 4,000 
rpm but you want to run at 5,000 rpm. The excellent specs on the K3 are 
garanteed at the 100 watt level so please don't overdrive it unecessarily to 
the 120 watt level and give an excellent radio a bad name. If you feel that you 
want more power then invest in a linear amplifier.
Just my 2 cents.

Fern with K3 serial #421



- Original Message - 
From: "Mack McCormick" <[EMAIL PROTECTED]>
To: 
Sent: Friday, June 27, 2008 11:26 AM
Subject: [Elecraft] K3 for Field Day at 120W


Is there any problem with running my K3 on CW at 120W for the 24 hours of field 
day? It will be in a semi air conditioned trailer. I'm trying to give all the 
CW ops in my ham club the opportunity to work the K3 on CW during a contest.73, 
MackWB4MAK___
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[Elecraft] re second rcvr option for K3

[Fern Rivard]

What's the hold up at Elecraft to start shipping the second receiver 
option?  It's been  over a month since they've sent a bunch of them out in the  
field for Beta testing. Is there any problems or ?
73 from Fern with K3.



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Re: [Elecraft] Power Supply Questions

[Fern Rivard]

That power supply is absolutely quiet and no issues with noise.Fern


- Original Message - 
From: "Bob Tellefsen" <[EMAIL PROTECTED]>
To: "Fern Rivard" <[EMAIL PROTECTED]>; "Tony Morgan" <[EMAIL PROTECTED]>; 

Sent: Thursday, June 12, 2008 11:21 AM
Subject: Re: [Elecraft] Power Supply Questions


Fern
Since you say it is a switcher, have you
been able to identify any noise as coming from it?
Thanks and 73
Bob N6WG

- Original Message - 
From: "Fern Rivard" <[EMAIL PROTECTED]>
To: "Tony Morgan" <[EMAIL PROTECTED]>;

Sent: Thursday, June 12, 2008 9:38 AM
Subject: Re: [Elecraft] Power Supply Questions


I would much recommend the new Samlex SEC-1235M switching power
supply. It is very compact switching power supply with both volt and
amp meters on the front panel. It's a lot more efficient than the old
linear style of power supplies. Have been using one with my new K3 and
it works great.
73 from Fern  VE7GZ


- Original Message - 
From: "Tony Morgan" <[EMAIL PROTECTED]>
To: 
Sent: Thursday, June 12, 2008 10:26 AM
Subject: Re: [Elecraft] Power Supply Questions


Second the Astron RS-35M. Have had one for over 20 years and still
works
perfectly.

73,

Tony W7GO

Timothy Raymer wrote:
> Norm,
>
> Fairly hard to beat an Astron Power Supply.  The RS-35M is the
workhorse I would recommend.  Meters to tell you what is going on, and
it will run the any of the 100W Elecraft radios with some headroom to
spare.
>
> Tim Raymer
> 73 de KA0OUV
>
>
>
>>>> Norm Klieman <[EMAIL PROTECTED]> 06/12/2008 09:24 >>>
>>>>
>
> Any recommendations for a good 35 amp Linear supply
> would be helpful too.
>
> Thanks again for any feedback.
>
>
>
>
>
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Re: [Elecraft] Power Supply Questions

[Fern Rivard]

I would much recommend the new Samlex SEC-1235M switching power supply. It 
is very compact switching power supply with both volt and amp meters on the 
front panel. It's a lot more efficient than the old linear style of power 
supplies. Have been using one with my new K3 and it works great.
73 from Fern  VE7GZ 


- Original Message - 
From: "Tony Morgan" <[EMAIL PROTECTED]>
To: 
Sent: Thursday, June 12, 2008 10:26 AM
Subject: Re: [Elecraft] Power Supply Questions


Second the Astron RS-35M. Have had one for over 20 years and still works 
perfectly.

73,

Tony W7GO

Timothy Raymer wrote:
> Norm,
>
> Fairly hard to beat an Astron Power Supply.  The RS-35M is the workhorse I 
> would recommend.  Meters to tell you what is going on, and it will run the 
> any of the 100W Elecraft radios with some headroom to spare.
>
> Tim Raymer
> 73 de KA0OUV
>
>
>   
 Norm Klieman <[EMAIL PROTECTED]> 06/12/2008 09:24 >>>
 
>
> Any recommendations for a good 35 amp Linear supply
> would be helpful too.
>
> Thanks again for any feedback.
>
>
>
>
>
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>   
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Re: [Elecraft] Power Supply short protection

[Fern Rivard]

Hi Mike:

Either get that power supply off the floor or put some type of cover over  
the pass transistor to prevent this problem from reoccuring.
Fern



- Original Message - 
From: "Mike Scott" <[EMAIL PROTECTED]>
To: 
Sent: Wednesday, May 21, 2008 6:32 AM
Subject: [Elecraft] Power Supply short protection


I am running my K3 from an Astron 35M. I experienced an accidental short
circuit on the power supply and I am wondering what everyone else does about
the possibility of accidental shorts from exposed 12V wire lugs or the
exposed pass transistors on the back of power supplies (hot transistor
collectors).

In my case the PS is on the floor and you guessed it close to my shack
ground braid. While fiddling the ground braid touched one of the pass
transistor collectors and everything shut down, no damage done than
goodness. I would like a more permanent solution.

Mike Scott - AE6WA
Tarzana, CA (DM04 / near LA)
K3-100 #508/ KX1  #1311


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[Elecraft] no issues with output power on ssb!

[Fern Rivard]

I fail to understand what the big complaint is with low ssb power with your 
K3. My K3 is serial 4XX and have had it for approximately 2 months. My output 
power is identical on ssb as it is on cw. I have refused to download any of the 
new firmware as my radio has been working great as it. I am anxiously waiting a 
version of firmware that doesn't have any bugs left in it and I will then 
upgrade.
Just my 2 cents worth from FernVE7GZ



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Re: [Elecraft] Heil Microphones

[Fern Rivard]

Hi Gary:

I would very much recommend the Shure 444D desk microphone. The 
resultant transmit audio using that microphone is so good that you will likely 
not even  have to use the transmit audio equilizer on your K3. You can usually 
pick those desk mics up at flea market for reasonable price. I would definitely 
stay away from those overpriced  heil cartridges or mics if you want excellent 
audio with any radios. I've been there and done that years ago and now use the 
shure 444D desk mics with all of my rigs. If you look at the response curve on 
that mic, it has a welcome boost around 2300 hz which is what you want in your 
audio and gives it an excellent presence. When you get comments that your 
transmit audio is great, then it is a good sign that you have it all ok.
Cheers from Fern


- Original Message - 
From: "Gary Gregory" <[EMAIL PROTECTED]>
To: 
Sent: Thursday, May 01, 2008 2:32 AM
Subject: [Elecraft] Heil Microphones


I don't want to seem like I am flogging a dead horse, but, has anyone found
a nice base Mic from Heil Sound that works nicely with a K3?

There are many choices ranging from the sublime to the ridiculous and all I
really need is a nice natural sounding base mic for the shack now that I
have a hand mic for field work sorted out.

I have a Silver Eagle that i can do the Heil cartridge change and although
it's still a new mic (last series made) I only want a simple base mic
without the clicks and clunks we hear so often these days. Also I am not
interested in destroying the bands with audio equalisers and such. They are
becoming a nuisance in Australia as the bandwidth they are consuming is
almost obscene.

So if anyone has any ideas it will be greatly appreciated.

Love the K3, still reading the manual but not had to reset yetElecraft,
you have every right to hold your head high and tell the world you built THE
RADIO

Gary
#679
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[Elecraft] re supply of handmic for K3 with UP/Down frequency feature

[Fern Rivard]

For anyone interested in getting good quality dynamic hand microphone with 
UP/DOWN frequency select, I will be able to supply those. I was never a fan of 
elecret microphone and much prefer dynamic microphones. My choice desk mic is 
the Shure 444D with excellent dynamic cartridge and finally found a hand mic 
with dynamic cartridge with the same excellent audio frequency response. I do 
not need to use the 8 band transmit audio equilizer with either of those mics 
but I had to boost both the 1200 hz and 2500 hz band by at least 3db if using 
the optional elecret hand mic to make it sound ok. Please note that elecraft 
has not yet enabled  that UP/DOWN feature  in their software but it is coming.
73 from Fern


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[Elecraft] re K3 shut down due to static

[Fern Rivard]

A while back, I had a problem where sometimes my K3 would shut down and 
immediately power back on when I would attempt to touch the main vfo knob. I 
had installed the encoder properly by inserting a star type of washer on both 
sides of the front panel to provide a good ground. However, I suspected that it 
was likely a poor  ground of the VFO A encoder but I didn't really want to 
remove the front panel from the rig (to do the ground on the back side of the 
front panel) as I had quite a time to install the front panel on there to start 
with. So, I removed the PTO A knob, nut and washers and carefully removed just 
enough paint around the hole where the encoder was mounted so that the star 
type of washer would bite into bare metal to ascertain that I had a good ground 
but being very careful as to not scratch the front panel so it would be good 
idea to use a bit of masking tape just in case one slips.
Now, I haven't a problem since so I suspect that this is what the problem 
was with a poor or none existent ground to the A PTO encoder. Jus thought that 
I'd pass this one just in case somebody else experiences the same problem. Now 
what I would do if putting a new K3 together is to remove enough paint on the 
back side of the front panel around the holes of both the A PTO and B PTO 
encoders (I never did have the problem when touch the B encoder).
Cheers from Fern   VE7GZ


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[Elecraft] re signal level of I F output on K3

[Fern Rivard]

What is the level output of the I F output on the K3? I'm trying to use the 
Kenwood SM-220 panadaptor with mine but can't get enough output from the I F of 
the K3. I've got on loan an I F amp @ 8.215 mhz set at 15 db gain  from Jack of 
Clifton Laboratories to try and cure the problem but even with the amp I need a 
minimum of 200 microvolts signal input to the antenna jack of the K3 before I 
can even detect it on the SM-220 panadaptor  I F input even with the  15 db 
amplifier. Looking at the schematic of the K3, there should be approximately 
the same level coming out of the 8.215 khz I F as what the received signal is. 
The manual for the K3 does NOT give any information on this. Any help would be 
greatly appreciated.
Thanks from Fern   VE7GZ



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Re: [Elecraft] Shipping update?

[Fern Rivard]

Hi Garry:

When I wanted to know when my K3 was to be shipped, I simply phone them and 
got an answer. Mind you, I was subscribe to this reflector back then.  I just 
don't see the point of this constant complaining on this reflector about a 
delivery date! Hang in there as it's worth the wait.
Cheers from FernVE7GZ



- Original Message - 
From: "VE7AJJ" <[EMAIL PROTECTED]>
To: 
Sent: Wednesday, April 09, 2008 6:57 PM
Subject: [Elecraft] Shipping update?


What say Elecraft?

Can we get a shipping update?  There are a few of us still in the
queue and wanting to hear about the latest shipping status.  Last
update ended April 4.

As of 2 minutes prior to this post there is still no change on the web
page re-shipping status.

TIA

Garry/Ve7ajj
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[Elecraft] Import duties on amateur radio items

[Fern Rivard]

Hi Jim:

You should NOT have had to pay any duty to import that K2 into the USA 
as the origin of manufacture is actually US made. In the past, I have sold some 
collins gear, etc to US ham and there was NOT import tax payable to get into 
the USA. You should apply to your US Customs for a refund.
73 from Fern



- Original Message - 
From: "Jim Miller" <[EMAIL PROTECTED]>
To: "Ken Kopp" <[EMAIL PROTECTED]>; 
Sent: Tuesday, April 08, 2008 3:55 PM
Subject: Re: [Elecraft] Import duties on amateur radio items


Duty free??  Canada??  NO - I ought a K2 on eBay from Canada and it arrived
with a $23 duty COD bill for the import.

73, de Jim KG0KP

- Original Message - 
From: "Ken Kopp" <[EMAIL PROTECTED]>
To: 
Sent: Tuesday, April 08, 2008 10:47 AM
Subject: [Elecraft] Import duties on amateur radio items


> Aren't amateur radio related items duty-free in the UK and EU,
> as they are in Canada?  I became aware of this through extensive
> eBay sales.
>
> 73! Ken Kopp - K0PP
>[EMAIL PROTECTED]
>
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Re: [Elecraft] K3 and Icom 7700

[Fern Rivard]

Yes Mr RF EXPERT didn't have the balls to show his call or name. He 
obviously doesn't know how to use his K3 as I haven't experienced any of his 
problems.
Fern



- Original Message - 
From: "Ken" <[EMAIL PROTECTED]>
To: 
Sent: Monday, April 07, 2008 6:41 PM
Subject: [Elecraft] K3 and Icom 7700


I think Mr. RFEXPERT is fooling himself.  Obviously self appointed.
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[Elecraft] K3 power supply question

[Fern Rivard]

For goodness sake, what's the big deal with the power pole connectors? 
Every ham should have a soldering iron and just use it. There's no need to use 
any kind of crimp tool for this. I've soldered mine and they work fine. I can't 
understand why there's been so much thread on something so basic so let's hope 
that's the end of it!
Fern
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Re: [Elecraft] re bandwidth select on am mode re K3

[Fern Rivard]

Well, it would have made things a lot simpler had them made the display 
show 6 khz rather than 3 khz.   Fern


- Original Message - 
From: "Jim" <[EMAIL PROTECTED]>
To: 
Sent: Wednesday, March 26, 2008 1:04 PM
Subject: RE: [Elecraft] re bandwidth select on am mode re K3


So to make everyone happy a simple way to explain is 3.00 = 6.00 

-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Joe Subich, W4TV
Sent: Wednesday, March 26, 2008 3:00 PM
To: 'Dave G4AON'; elecraft@mailman.qth.net
Subject: RE: [Elecraft] re bandwidth select on am mode re K3


> I also think it's confusing and should show the overall 
> bandwidth, i.e. 6 KHz like it does on SSB when you have the AM filter 
> available.

As Wayne has repeatedly stated, the K3 shows the audio bandwidth - 
not the RF bandwidth.  Since the AM mode does not support VSB 
(vestigial side band) or ISB (independent side band) the reporting 
is consistent.  

I would very much like to see the K3 support VSB-U and VSB-L (offset 
the display/carrier to the lower/upper -6dB points of the filter 
respectively and demodulate only the one sideband).  That provide 
enhanced fidelity and the opportunity to eliminate QRM from one 
side or the other.  With DSP demodulation it should be relatively 
easy to implement. 

73, 

   ... Joe, W4TV 
  


> -Original Message-
> From: [EMAIL PROTECTED] 
> [mailto:[EMAIL PROTECTED] On Behalf Of Dave G4AON
> Sent: Wednesday, March 26, 2008 1:35 PM
> To: elecraft@mailman.qth.net
> Subject: [Elecraft] re bandwidth select on am mode re K3
> 
> 
> It's been noted previously, with the excuse that 3 KHz is the upper 
> audio limit. I also think it's confusing and should show the overall 
> bandwidth, i.e. 6 KHz like it does on SSB when you have the AM filter 
> available.
> 
> 73 Dave, G4AON
> K3/100 #80
> ---
> On my K3, on ssb mode, I can select the wide am filter 
> position but if I 
> go to the AM mode, the widest bandwidth shown on the display 
> is 3 khz! 
> Should it not go to 6 khz as I do have that filter installed and it 
> works on the ssb and other modes except for the AM mode. Any 
> clarification or help with this would be greatly appreciated.
> Thanks from Fern
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[Elecraft] re bandwidth select on am mode re K3

[Fern Rivard]

On my K3, on ssb mode,  I can select the wide am filter position but if I 
go to the AM mode, the widest bandwidth shown on the display is 3 khz! Should 
it not go to 6 khz as I do have that filter installed and it works on the ssb 
and other modes except for the AM mode.  Any clarification or help with this 
would be greatly appreciated.
Thanks from Fern


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[Elecraft] re setting of Auto Inf menu

[Fern Rivard]

Could someone please help with setting in the conf menu with Auto Inf which 
has choice of Nor or Auto 1.  What do either choices do and what is the better 
setting?

Thanks from Fern
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[Elecraft] Fix the old amplifier......leave the K3 alone!

[Fern Rivard]

Hi Ian and the group:

I would suggest that you fix/modernize your old amplier and leave the K3 as 
is!  The problem is NOT with the K3 but rather your amplifier. Upgrade the darn 
linear with more modern faster switching relays and vacuum relays are not that 
expensive if you shop around for some good used ones.

73 from Fern VE7GZ with a fine K3 transceiver






- Original Message - 
From: "Ian White GM3SEK" <[EMAIL PROTECTED]>
To: 
Sent: Thursday, March 20, 2008 11:31 AM
Subject: Re: [Elecraft] K3 and linear amp


Roger Marrotte wrote:
>I guess as of now I'm out of luck if I want to use my amp with a K3.  I 
>just checked the manual for my AL-811H and "The open frame relay in the 
>AL-811H takes approximately 15ms to switch states".  My K3 is on order. 
>I hope there's a K3 firmware change made before I get my K3, that will 
>allow me to adjust the change over timing.  I'm far from an expert with 
>amps.  I have no idea what an average switch over time is for amps in 
>general.  Ameritron sells a high speed switching option, the QSK-5, 
>that reduces the switching time to 1ms.  It costs around $300.00.  A K3 
>firmware change would sure be less expensive.
>
That firmware change is surely needed, but there is another inexpensive 
way which often works - speed up that open-frame relay.

The circuit shown in the link below uses the existing relay supply rail, 
and it will shorten the switching time of most relays by about one-half. 
The same circuit will also convert many older amplifiers to a modern 
standards +12V, low-current switch interface.

http://www.ifwtech.co.uk/g3sek/in-prac/best-of.htm#speedup


-- 

73 from Ian GM3SEK 'In Practice' columnist for RadCom (RSGB)
http://www.ifwtech.co.uk/g3sek
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[Elecraft] re best desk mic for K3

[Fern Rivard]

Hi Steve:

I would very much recommend getting a Shure 444D desk microphone for your 
K3. I am using one with excellent transmit audio. It's a very simply job to 
connect the appropriate mic connector to it.
73 from Fern   VE7GZ




- Original Message - 
From: "n4lq" <[EMAIL PROTECTED]>
To: 
Sent: Monday, March 17, 2008 8:02 PM
Subject: [Elecraft] Microphone and filter question


I know this sounds lazy but what desk mic. could I order, plug directly into 
a K3 and operate with no wiring changes? Yes, a good one.
Which is better, the 200 hz 5pole or 250 hz 8 pole? Which is best for the 
160m cw test?
Steve Ellington
[EMAIL PROTECTED] 
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[Elecraft] re using Kenwood SM-220 panadapter with K3

[Fern Rivard]

Has anyone been sucessful in using the Kenwood SM-220 as a band scope 
looking at the IF of the K3? The IF's of the kenwood radio or the K3 are very 
close with only about 600 khz difference so it's a simple matter to tweek the 
oscillator trimmer in the SM-220 to adjust that. However, I get a lot of 
interaction between the SM-220 and the K3. I've also tried using a 10 db 
attenuator pad but still get erratic results.
Fern


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[Elecraft] re UP & Down features on mic

[Fern Rivard]

   Can anyone please enlighten me on whether the UP and Down feature on the 
microphone connect work against ground or +8 volts dc. Although I purchases the 
optional electret style of hand microphone, I much prefer a good dynamic 
microphone. I'm presently using the Shure 444D dynamic desk microphone with 
excellent transmit audio report. I've just tried a dynamic hand mic meant for 
the TAD line of commercial radios with also excellent transmit audio. This hand 
mic also has the UP and Down buttons so I would like to wire that feature but 
need to know as to whether it works against ground or + 8 vdc. I will be 
selling the factory electret hand mic for anyone interested.
Fern

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