Re: [Elecraft] Unbelievable!

[Igor Sokolov]

Hi Barry,
I suspect your RX noise level there is very low. When I put headphones on 
first thing I hear is 59 + noise on most of the bands. Sure enough I am 
never bothered by fan noise of my K3.
All of the above is said to tell how much I envy you :)

73, Igor UA9CDC

- Original Message - 
From: "Barry Simpson" 
To: "Brian Alsop" 
Cc: 
Sent: Monday, January 23, 2012 1:58 PM
Subject: Re: [Elecraft] Unbelievable!


> Hi Brian
>
> My experience with the KPA500 exactly mirrors yours. After some fairly 
> long
> overs, my fan begins to sound a bit like a vacuum cleaner although nowhere
> near as loud as my former linear, a Yaesu FL7000. I do not find any cause
> for complaint. It is simply a fact of life.
>
> I am also bewildered by people who say they never hear the fan in their 
> K3.
> Mine comes on almost from the start and I can always hear it, even with my
> headphones on.
>
> 73
>
> Barry Simpson  VK2BJ
>
> On 22 January 2012 11:40, Brian Alsop  wrote:
>
>> Like all things too good to be true, this posting about the KPA500 is a
>> bit unbelievable.  Like cars, YMMV.
>>
>> My experience with the KPA500 is much different.  I suspect Jack only
>> operates SSB.
>>
>> On CW expect the fan to come on after a few transmissions in under 30
>> seconds.  Levels 1, 2 and sometimes 3 are often heard when doing some
>> rag chewing at 500 W.  The temperature stays below 70C as it should.
>> RTTY is about the same with contest type operation.   Expect the fan to
>> operate as designed for these modes.
>>
>> It is not an absolutely quiet fan. I doubt Muffin type fans can be more
>> quiet that what is used on the KPA500.  One would have to go to a
>> centrifugal fan like used on some of the really silent big amps to have
>> it "pin drop" quiet.
>>
>> 73 de Brian/K3KO
>>
>>
>>
>> On 1/21/2012 23:19, Jack Berry wrote:
>>
>> > I'm with you Fred. I wish Elecraft made cars. They would read our 
>> > minds,
>> last for 20 years and get 300 mpg!
>> >
>> > On Jan 21, 2012, at 4:03 PM, Fredric Serota  wrote:
>> >
>> >> I don't usually say much on these lists. But I have just finished
>> building
>> >> my KPA500, and I have to say that in my almost 50 years of hamming,
>> this is
>> >> the most incredible piece of equipment I have ever had. Now, I am not
>> >> related to Elecraft in any way. They don't even know who I am. But I 
>> >> am
>> so
>> >> impressed with the quality of components and the engineering and 
>> >> thought
>> >> that went in to this little package that I may sell my other amp (name
>> >> starts with the first letter of the Greek alphabet) and buy another. 
>> >> My
>> >> other amp is so noisy, the fan runs so loud and the "QSK" relays
>> >> clickity-clack" when sending CW. The KPA500 is as silent as can be,
>> >> generates over 600 watts without any noise at all. The only time I can
>> hear
>> >> the fan is when I shut down the amplifier, it turns on to bleed the 
>> >> high
>> >> voltage to make it safe if you want to poke inside. No other piece of
>> >> equipment I have ever had does that. It follows the K3 without
>> blinking. And
>> >> the software gives you all the measurements, including temperature,
>> that you
>> >> would ever want to know. And the satisfaction of breaking a pile up 
>> >> with
>> >> half the power I usually run, puts the fun back in operating.
>> >>
>> >>
>> >>
>> >> And all you guys can say is you don't like the color of the buttons.
>> >> Unbelievable!
>> >>
>> >>
>> >>
>> >> Fred Serota, K3BHX
>> >>
>> >> __
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>> >
>> > -
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>> > Checked by AVG - www.avg.com
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>> >
>> >
>>
>>
>>
>> -
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>> Checked by AVG - www.avg.com
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>>
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> El

[Elecraft] K3 fan noise

[Rose]

This subject has been discussed before. There are
apparently fans by different manufacturers used in
the K3.

I'm fortunate ... the fans in mine (S/N 0056) are not
audible, even during hours-long contesting events.
They are absolutely silent.  Yes, they -do- run ... I've
seen 'em. (:-)

If could read the make/model of mine through the grilles
I'd provide the information, but I'd have to disconnect the
K3 and disassemble the fan panel.

73!

Ken Kopp - K0PP
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Re: [Elecraft] Use of K3 voice keyer

[Mike Clarke]

Hi George,

Being terminally lazy, I too tired of reaching all the way over
to the radio when I wanted to trigger the voice keyer!  To solve
the problem (as well as the more serious irritation of losing
audio for a fraction of a second when I tap the PTT to cancel
message playback) I've made a custom PTT controller using a Wii
nunchuk and an arduino that talks to the K3 over serial.

There are a couple of blog posts on it here:

http://clarkema.org/posts/2011-12/2011-12-20-arduino-rig-control.html
http://clarkema.org/posts/2012-01/2012-01-05-arduino-rig-control.html

It's all very rough at the moment, buut I've been using it on air
since the beginning of the year and been delighted with it.
Indeed, I've found that the ease of triggering playback has
changed the whole way I use the voice keyer.

I'm hoping to be able to publish a more polished version of the
setup including serial pasthrough when I get back to the UK; but
the basic hard-coded version is fairly straightforward to
implement if you have access to an Arduino and something you want
to use as a controller.

73,

-- 
Mike, M0PRL / VP8DMH

On 22/Jan 22:40, georgek...@aol.com wrote:

> Also, is there a way to key the messages from an external key pad, kinda  
> like the iMate is for the Icom 756Pro radios?
>  
> 73, George
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Re: [Elecraft] Use of K3 voice keyer

[nr4c]

Since you can access the M1-M4 buttons for 'playback' from N1MM for CW 
messages, I assume it (N1MM) could playback the M1-M4 DVR messages as 
well.  I think it just sends the EPL macro as ascii text over the serial 
line.

...bill  nr4c




On Mon, 23 Jan 2012 14:19:01 +, Mike Clarke wrote:
> Hi George,
>
> Being terminally lazy, I too tired of reaching all the way over
> to the radio when I wanted to trigger the voice keyer!  To solve
> the problem (as well as the more serious irritation of losing
> audio for a fraction of a second when I tap the PTT to cancel
> message playback) I've made a custom PTT controller using a Wii
> nunchuk and an arduino that talks to the K3 over serial.
>
> There are a couple of blog posts on it here:
>
> http://clarkema.org/posts/2011-12/2011-12-20-arduino-rig-control.html
> http://clarkema.org/posts/2012-01/2012-01-05-arduino-rig-control.html
>
> It's all very rough at the moment, buut I've been using it on air
> since the beginning of the year and been delighted with it.
> Indeed, I've found that the ease of triggering playback has
> changed the whole way I use the voice keyer.
>
> I'm hoping to be able to publish a more polished version of the
> setup including serial pasthrough when I get back to the UK; but
> the basic hard-coded version is fairly straightforward to
> implement if you have access to an Arduino and something you want
> to use as a controller.
>
> 73,
>
> --
> Mike, M0PRL / VP8DMH
>
> On 22/Jan 22:40, georgek...@aol.com wrote:
>
>> Also, is there a way to key the messages from an external key pad, 
>> kinda
>> like the iMate is for the Icom 756Pro radios?
>>
>> 73, George
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Re: [Elecraft] Use of K3 voice keyer

[Jim McDonald]

True, and DXLab's WinWarbler works too.

73, Jim N7US



-Original Message-


Since you can access the M1-M4 buttons for 'playback' from N1MM for CW
messages, I assume it (N1MM) could playback the M1-M4 DVR messages as well.
I think it just sends the EPL macro as ascii text over the serial line.

...bill  nr4c




On Mon, 23 Jan 2012 14:19:01 +, Mike Clarke wrote:
> Hi George,
>
> Being terminally lazy, I too tired of reaching all the way over to the 
> radio when I wanted to trigger the voice keyer!  To solve the problem 
> (as well as the more serious irritation of losing audio for a fraction 
> of a second when I tap the PTT to cancel message playback) I've made a 
> custom PTT controller using a Wii nunchuk and an arduino that talks to 
> the K3 over serial.
>
> There are a couple of blog posts on it here:
>
> http://clarkema.org/posts/2011-12/2011-12-20-arduino-rig-control.html
> http://clarkema.org/posts/2012-01/2012-01-05-arduino-rig-control.html
>
> It's all very rough at the moment, buut I've been using it on air 
> since the beginning of the year and been delighted with it.
> Indeed, I've found that the ease of triggering playback has changed 
> the whole way I use the voice keyer.
>
> I'm hoping to be able to publish a more polished version of the setup 
> including serial pasthrough when I get back to the UK; but the basic 
> hard-coded version is fairly straightforward to implement if you have 
> access to an Arduino and something you want to use as a controller.
>
> 73,
>
> --
> Mike, M0PRL / VP8DMH
>
> On 22/Jan 22:40, georgek...@aol.com wrote:
>
>> Also, is there a way to key the messages from an external key pad, 
>> kinda like the iMate is for the Icom 756Pro radios?
>>
>> 73, George


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Re: [Elecraft] Use of K3 voice keyer

[Mike Clarke]

In theory of course it can be done from any logging program that
lets you send macros to the radio.  All you need to do is emulate
button presses, which is exactly what I do with the Arduino.  I
just prefer having a physical controller.

-- 
Mike, VP8DMH


On 23/Jan 08:50, Jim McDonald wrote:
> True, and DXLab's WinWarbler works too.
> 
> 73, Jim N7US
> 
> -Original Message-
> 
> Since you can access the M1-M4 buttons for 'playback' from N1MM for CW
> messages, I assume it (N1MM) could playback the M1-M4 DVR messages as well.
> I think it just sends the EPL macro as ascii text over the serial line.
> 
> ...bill  nr4c
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[Elecraft] K3 Hum on transmit

[Hunsdon Cary III]

K3 Experts:  My K3-100 has been flawless in its performance until yesterday.  I 
had a schedule with W5ZNN who told me I had a hum on my signal; I put my 
headphones on and sure enough there it was on transmit.  I tried plugging the 
Astron 35M directly into the AC outlet instead of the outlet strip - no luck, 
hum was still there.  I connected the K3 to my SEC 1223 switching power supply 
and, you guessed it, the hum is still there.  I hate to think there's something 
amiss with the K3 but it looks that way.  Any ideas?
73,
Cary, K4TM
Lynchburg VAh
h3c...@gmail.com



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Re: [Elecraft] K3 Hum on transmit

[VE3GNO Daniel]

Try to use a car battery and check if the humm is still there, if yes than most 
likely is something inside the K3, if not than concentrate on PS. I've put on 
mine some big chocke on K3 DC input and I'm using SEC1223 with no hum problems


VE3GNO Daniel



From: Hunsdon Cary III 
To: elecraft@mailman.qth.net 
Cc: Wyatt Henry Wyatt  
Sent: Monday, January 23, 2012 10:10:50 AM
Subject: [Elecraft] K3 Hum on transmit

K3 Experts:  My K3-100 has been flawless in its performance until yesterday.  I 
had a schedule with W5ZNN who told me I had a hum on my signal; I put my 
headphones on and sure enough there it was on transmit.  I tried plugging the 
Astron 35M directly into the AC outlet instead of the outlet strip - no luck, 
hum was still there.  I connected the K3 to my SEC 1223 switching power supply 
and, you guessed it, the hum is still there.  I hate to think there's something 
amiss with the K3 but it looks that way.  Any ideas?
73,
Cary, K4TM
Lynchburg VAh
h3c...@gmail.com



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Re: [Elecraft] K3 Hum on transmit

[Don Wilhelm]

Cary,

Is it hum or is it actually "buzz"?  Hum is 60 Hz AC, but buzz will be 
of various frequencies, and it is difficult to tell them apart with just 
your ears as detectors.

Does it disappear if the microphone is not connected?  Use XMIT to put 
the K3 in transmit while you are listening.  If it is only when the 
microphone is connected, you may have a broken wire in the mic cable.

73,
Don W3FPR

On 1/23/2012 10:10 AM, Hunsdon Cary III wrote:
> K3 Experts:  My K3-100 has been flawless in its performance until yesterday.  
> I had a schedule with W5ZNN who told me I had a hum on my signal; I put my 
> headphones on and sure enough there it was on transmit.  I tried plugging the 
> Astron 35M directly into the AC outlet instead of the outlet strip - no luck, 
> hum was still there.  I connected the K3 to my SEC 1223 switching power 
> supply and, you guessed it, the hum is still there.  I hate to think there's 
> something amiss with the K3 but it looks that way.  Any ideas?
> 73,
> Cary, K4TM
> Lynchburg VAh
> h3c...@gmail.com
>
>
>
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Re: [Elecraft] K3 Hum on transmit

[Hunsdon Cary III]

Don:
You know it's hard to tell the difference between a buzz and a 60 hertz 
hum, at least to my 66 year old ears.  HOWEVER, when I disconnected the mic 
front the front panel connector and used the XMIT button on the front panel, 
there is no buzz or hum!  I'll start troubleshooting the mic cable now!
Tnx for your help.
73,
Cary, K4TM

On Jan 23, 2012, at 10:23 AM, Don Wilhelm wrote:

> Cary,
> 
> Is it hum or is it actually "buzz"?  Hum is 60 Hz AC, but buzz will be of 
> various frequencies, and it is difficult to tell them apart with just your 
> ears as detectors.
> 
> Does it disappear if the microphone is not connected?  Use XMIT to put the K3 
> in transmit while you are listening.  If it is only when the microphone is 
> connected, you may have a broken wire in the mic cable.
> 
> 73,
> Don W3FPR
> 
> On 1/23/2012 10:10 AM, Hunsdon Cary III wrote:
>> K3 Experts:  My K3-100 has been flawless in its performance until yesterday. 
>>  I had a schedule with W5ZNN who told me I had a hum on my signal; I put my 
>> headphones on and sure enough there it was on transmit.  I tried plugging 
>> the Astron 35M directly into the AC outlet instead of the outlet strip - no 
>> luck, hum was still there.  I connected the K3 to my SEC 1223 switching 
>> power supply and, you guessed it, the hum is still there.  I hate to think 
>> there's something amiss with the K3 but it looks that way.  Any ideas?
>> 73,
>> Cary, K4TM
>> Lynchburg VAh
>> h3c...@gmail.com
>> 
>> 
>> 
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>> 

H. Cary III
h3c...@gmail.com



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[Elecraft] MFJ4035MV power supply - anyone used one?

[NZ0T]

I'm looking at linear supplies and the MFJ-4035MV looks like a good value. 
Has anyone used one?  Thoughts?

73 Bill NZ0T

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View this message in context: 
http://elecraft.365791.n2.nabble.com/MFJ4035MV-power-supply-anyone-used-one-tp7216724p7216724.html
Sent from the Elecraft mailing list archive at Nabble.com.
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Re: [Elecraft] Unbelievable!

[Phil Hystad]

On KPA500 fan...

My fan will only kick on after a somewhat sustained signal.  This occurs at 
about the
one minute mark for SSB and maybe about the same for CW but my CW transmissions
do not always cause the fan to switch on.  I monitor the temperature too and it 
seems
to run cool.

Note that the efficiency of heat removal has a lot to do with not just external
air temperature but also the density of the air which of course is affected by
humidity too.  And of course, the availability of surrounding air currents that
help to cool without the fan.  My KPA500 is in a fairly open room where the
average air temperature is about 68 degrees.

phil, K7PEH

On Jan 22, 2012, at 11:58 PM, Barry Simpson wrote:

> Hi Brian
> 
> My experience with the KPA500 exactly mirrors yours. After some fairly long
> overs, my fan begins to sound a bit like a vacuum cleaner although nowhere
> near as loud as my former linear, a Yaesu FL7000. I do not find any cause
> for complaint. It is simply a fact of life.
> 
> I am also bewildered by people who say they never hear the fan in their K3.
> Mine comes on almost from the start and I can always hear it, even with my
> headphones on.
> 
> 73
> 
> Barry Simpson  VK2BJ
> 
> On 22 January 2012 11:40, Brian Alsop  wrote:
> 
>> Like all things too good to be true, this posting about the KPA500 is a
>> bit unbelievable.  Like cars, YMMV.
>> 
>> My experience with the KPA500 is much different.  I suspect Jack only
>> operates SSB.
>> 
>> On CW expect the fan to come on after a few transmissions in under 30
>> seconds.  Levels 1, 2 and sometimes 3 are often heard when doing some
>> rag chewing at 500 W.  The temperature stays below 70C as it should.
>> RTTY is about the same with contest type operation.   Expect the fan to
>> operate as designed for these modes.
>> 
>> It is not an absolutely quiet fan. I doubt Muffin type fans can be more
>> quiet that what is used on the KPA500.  One would have to go to a
>> centrifugal fan like used on some of the really silent big amps to have
>> it "pin drop" quiet.
>> 
>> 73 de Brian/K3KO
>> 
>> 
>> 
>> On 1/21/2012 23:19, Jack Berry wrote:
>> 
>>> I'm with you Fred. I wish Elecraft made cars. They would read our minds,
>> last for 20 years and get 300 mpg!
>>> 
>>> On Jan 21, 2012, at 4:03 PM, Fredric Serota  wrote:
>>> 
 I don't usually say much on these lists. But I have just finished
>> building
 my KPA500, and I have to say that in my almost 50 years of hamming,
>> this is
 the most incredible piece of equipment I have ever had. Now, I am not
 related to Elecraft in any way. They don't even know who I am. But I am
>> so
 impressed with the quality of components and the engineering and thought
 that went in to this little package that I may sell my other amp (name
 starts with the first letter of the Greek alphabet) and buy another. My
 other amp is so noisy, the fan runs so loud and the "QSK" relays
 clickity-clack" when sending CW. The KPA500 is as silent as can be,
 generates over 600 watts without any noise at all. The only time I can
>> hear
 the fan is when I shut down the amplifier, it turns on to bleed the high
 voltage to make it safe if you want to poke inside. No other piece of
 equipment I have ever had does that. It follows the K3 without
>> blinking. And
 the software gives you all the measurements, including temperature,
>> that you
 would ever want to know. And the satisfaction of breaking a pile up with
 half the power I usually run, puts the fun back in operating.
 
 
 
 And all you guys can say is you don't like the color of the buttons.
 Unbelievable!
 
 
 
 Fred Serota, K3BHX
 
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>>> 
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>>> 
>>> 
>> 
>> 
>> 
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>> Checked by AVG - www.avg.com
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[Elecraft] Unusual Phenomenon OT

[Dan Atchison]

I am posting this observation here only because I am using a K3.  I do 
not have any clue what may have caused this phenomenon and I'd like 
someone to give me a rational explanation other than magic!

Just a few minutes ago, I was calling HK0NA on 12M SSB.  I was operating 
split (10 kHz) according to both the rig and the P3.  When I un-keyed 
the radio, I heard RX, of course, BUT ALSO the last several characters 
of my callsign.  In other words, I heard "3 November delta."  Yes, I was 
unkeyed.  There was a delay, like an LDE.

I thought that was strange, of course, but them someone came on 
frequency and said, "November Delta he's operating split."  I was 
operating split!  However, I did hit the split button again (with no 
changes on the rig's display or the P3, and my delayed "echo" subsided 
and I worked the station.  There was no operator error even though many 
of you are currently shaking your heads!  IS IT POSSIBLE that the rig 
was actually transmitting on the VFO A freq instead of the VFO B freq 
regardless of the indications on the rig and P3?

What is going on?  This is, indeed, very strange.  I am also using a 
KPA500 for what it's worth.

Dan -- N3ND
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Re: [Elecraft] K3 Hum on transmit

[Phil Hystad]

Cary,

I battled a hum/buzz problem just two weeks ago.  After almost a full day spent 
hunting, experimenting, searching, and doing everything under the sun plus some 
very helpful dialog from others here on Elecraft forum, the hum/buzz was 
finally fixed.

I did not fix it, it just disappeared.  So, here are some things I did...

(1)  I did all my tests with the monitor on and TX in TEST mode since that in 
itself showed the hum/buzz.

(2)  With the help of Jim Brown (K9YC) I used the TX EQualization feature of 
the K3 to crimp down to minimum
  the low frequencies of the hum/buzz.  Doing this, it appeared that this 
was indeed a buzz and not a 60-cycle
  hum because the buzz did not start to be attenuated until after the 400 
Hz TXEQ was set to zero and I started
  working on the next higher frequency band.

(3)  I was confused as to whether this was front mic and back end mic inputs or 
just front.  I finally determined that
  this was on the front mic only with 98 percent confidence.  It is not 100 
percent confidence because all of my
  experiments to prove one way or the other were a bit scrambled but I 
think this was front panel mic only.

(4)  I then focused on the mic itself, an Elecraft MH2 hand mic.  Unfortunately 
it was the only mic I had for the front
  panel but if you have more then one then I definitely suggest you test 
them all to see if the hum/buzz is 
  independent of mic.

(5)  I jiggled and bumped this front panel mic and connector to see if there 
was some loose connection.  Someone
  suggested florescent lighting as a noise generated and I tested with all 
lights turned off (see next point).

(6)  I also had a nice 13.8 Li-nanoPhosphate battery so I disconnected 
EVERYTHING from the K3.  The only two
  things connected were the 13.8 volt battery on the power and the mic on 
the front panel.  No Antenna, no
  ground, no other connector to the K3.  Hum/Buzz was still there and in 
that test I also turned off the circuit
  breaker for all AC in my shack.  Did not help.

(7)  After some tests, and other things, the hum just seemed to disappear and 
never came back since.  My best
  guess is that it was one of the following: (1)  either an external noise 
source that eventually turned off and
  my front panel mic was just more susceptible to picking it up; or, (2) 
the front panel mic itself had some kind
  of loose connection that just seemed to finally correct itself.  I favor 
cause (1) though.  I am kind of hoping it
  comes back so I can test some more.

73, phil, K7PEH


On Jan 23, 2012, at 7:37 AM, Hunsdon Cary III wrote:

> Don:
>   You know it's hard to tell the difference between a buzz and a 60 hertz 
> hum, at least to my 66 year old ears.  HOWEVER, when I disconnected the mic 
> front the front panel connector and used the XMIT button on the front panel, 
> there is no buzz or hum!  I'll start troubleshooting the mic cable now!
>   Tnx for your help.
>   73,
>   Cary, K4TM
> 
> On Jan 23, 2012, at 10:23 AM, Don Wilhelm wrote:
> 
>> Cary,
>> 
>> Is it hum or is it actually "buzz"?  Hum is 60 Hz AC, but buzz will be of 
>> various frequencies, and it is difficult to tell them apart with just your 
>> ears as detectors.
>> 
>> Does it disappear if the microphone is not connected?  Use XMIT to put the 
>> K3 in transmit while you are listening.  If it is only when the microphone 
>> is connected, you may have a broken wire in the mic cable.
>> 
>> 73,
>> Don W3FPR
>> 
>> On 1/23/2012 10:10 AM, Hunsdon Cary III wrote:
>>> K3 Experts:  My K3-100 has been flawless in its performance until 
>>> yesterday.  I had a schedule with W5ZNN who told me I had a hum on my 
>>> signal; I put my headphones on and sure enough there it was on transmit.  I 
>>> tried plugging the Astron 35M directly into the AC outlet instead of the 
>>> outlet strip - no luck, hum was still there.  I connected the K3 to my SEC 
>>> 1223 switching power supply and, you guessed it, the hum is still there.  I 
>>> hate to think there's something amiss with the K3 but it looks that way.  
>>> Any ideas?
>>> 73,
>>> Cary, K4TM
>>> Lynchburg VAh
>>> h3c...@gmail.com
>>> 
>>> 
>>> 
>>> __
>>> Elecraft mailing list
>>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
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>>> This list hosted by: http://www.qsl.net
>>> Please help support this email list: http://www.qsl.net/donate.html
>>> 
> 
> H. Cary III
> h3c...@gmail.com
> 
> 
> 
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Re: [Elecraft] K3 Hum on transmit

[Hunsdon Cary III]

Took the mic connector apart, even the Heil mic (gasp!).  Could find no short 
on the connecting wires, although I did clip out the unused posts in the 8-pin 
connector.  Put it back together, connected it to the K3 and, miraculously, 
like Phil, the hum/buzz is gone.  Have no idea what I did, just glad it's gone 
after only 30" of effort!
Tnx for the help!
73, 
Cary, K4TM

Sent from my iPhone in Lynchburg VA - named a Runner Friendly City by Road 
Runner's Club of America in 2011.


On Jan 23, 2012, at 11:28 AM, Phil Hystad  wrote:

> Cary,
> 
> I battled a hum/buzz problem just two weeks ago.  After almost a full day 
> spent hunting, experimenting, searching, and doing everything under the sun 
> plus some very helpful dialog from others here on Elecraft forum, the 
> hum/buzz was finally fixed.
> 
> I did not fix it, it just disappeared.  So, here are some things I did...
> 
> (1)  I did all my tests with the monitor on and TX in TEST mode since that in 
> itself showed the hum/buzz.
> 
> (2)  With the help of Jim Brown (K9YC) I used the TX EQualization feature of 
> the K3 to crimp down to minimum
>  the low frequencies of the hum/buzz.  Doing this, it appeared that this 
> was indeed a buzz and not a 60-cycle
>  hum because the buzz did not start to be attenuated until after the 400 
> Hz TXEQ was set to zero and I started
>  working on the next higher frequency band.
> 
> (3)  I was confused as to whether this was front mic and back end mic inputs 
> or just front.  I finally determined that
>  this was on the front mic only with 98 percent confidence.  It is not 
> 100 percent confidence because all of my
>  experiments to prove one way or the other were a bit scrambled but I 
> think this was front panel mic only.
> 
> (4)  I then focused on the mic itself, an Elecraft MH2 hand mic.  
> Unfortunately it was the only mic I had for the front
>  panel but if you have more then one then I definitely suggest you test 
> them all to see if the hum/buzz is 
>  independent of mic.
> 
> (5)  I jiggled and bumped this front panel mic and connector to see if there 
> was some loose connection.  Someone
>  suggested florescent lighting as a noise generated and I tested with all 
> lights turned off (see next point).
> 
> (6)  I also had a nice 13.8 Li-nanoPhosphate battery so I disconnected 
> EVERYTHING from the K3.  The only two
>  things connected were the 13.8 volt battery on the power and the mic on 
> the front panel.  No Antenna, no
>  ground, no other connector to the K3.  Hum/Buzz was still there and in 
> that test I also turned off the circuit
>  breaker for all AC in my shack.  Did not help.
> 
> (7)  After some tests, and other things, the hum just seemed to disappear and 
> never came back since.  My best
>  guess is that it was one of the following: (1)  either an external noise 
> source that eventually turned off and
>  my front panel mic was just more susceptible to picking it up; or, (2) 
> the front panel mic itself had some kind
>  of loose connection that just seemed to finally correct itself.  I favor 
> cause (1) though.  I am kind of hoping it
>  comes back so I can test some more.
> 
> 73, phil, K7PEH
> 
> 
> On Jan 23, 2012, at 7:37 AM, Hunsdon Cary III wrote:
> 
>> Don:
>>You know it's hard to tell the difference between a buzz and a 60 hertz 
>> hum, at least to my 66 year old ears.  HOWEVER, when I disconnected the mic 
>> front the front panel connector and used the XMIT button on the front panel, 
>> there is no buzz or hum!  I'll start troubleshooting the mic cable now!
>>Tnx for your help.
>>73,
>>Cary, K4TM
>> 
>> On Jan 23, 2012, at 10:23 AM, Don Wilhelm wrote:
>> 
>>> Cary,
>>> 
>>> Is it hum or is it actually "buzz"?  Hum is 60 Hz AC, but buzz will be of 
>>> various frequencies, and it is difficult to tell them apart with just your 
>>> ears as detectors.
>>> 
>>> Does it disappear if the microphone is not connected?  Use XMIT to put the 
>>> K3 in transmit while you are listening.  If it is only when the microphone 
>>> is connected, you may have a broken wire in the mic cable.
>>> 
>>> 73,
>>> Don W3FPR
>>> 
>>> On 1/23/2012 10:10 AM, Hunsdon Cary III wrote:
 K3 Experts:  My K3-100 has been flawless in its performance until 
 yesterday.  I had a schedule with W5ZNN who told me I had a hum on my 
 signal; I put my headphones on and sure enough there it was on transmit.  
 I tried plugging the Astron 35M directly into the AC outlet instead of the 
 outlet strip - no luck, hum was still there.  I connected the K3 to my SEC 
 1223 switching power supply and, you guessed it, the hum is still there.  
 I hate to think there's something amiss with the K3 but it looks that way. 
  Any ideas?
 73,
 Cary, K4TM
 Lynchburg VAh
 h3c...@gmail.com
 
 
 
 __
 Elecraft mailing list
>>>

Re: [Elecraft] Unusual Phenomenon OT

[Guy Olinger K2AV]

LDE's do not change frequency except in very small (a few Hz).  Someone was
retransmitting part of your call on frequency.  Easy to do that. But he
mis-timed it.  You weren't supposed to hear it.  Just more of the nasty
behavior you sometimes see these days.  73, Guy

On Mon, Jan 23, 2012 at 11:15 AM, Dan Atchison  wrote:

> I am posting this observation here only because I am using a K3.  I do
> not have any clue what may have caused this phenomenon and I'd like
> someone to give me a rational explanation other than magic!
>
> Just a few minutes ago, I was calling HK0NA on 12M SSB.  I was operating
> split (10 kHz) according to both the rig and the P3.  When I un-keyed
> the radio, I heard RX, of course, BUT ALSO the last several characters
> of my callsign.  In other words, I heard "3 November delta."  Yes, I was
> unkeyed.  There was a delay, like an LDE.
>
> I thought that was strange, of course, but them someone came on
> frequency and said, "November Delta he's operating split."  I was
> operating split!  However, I did hit the split button again (with no
> changes on the rig's display or the P3, and my delayed "echo" subsided
> and I worked the station.  There was no operator error even though many
> of you are currently shaking your heads!  IS IT POSSIBLE that the rig
> was actually transmitting on the VFO A freq instead of the VFO B freq
> regardless of the indications on the rig and P3?
>
> What is going on?  This is, indeed, very strange.  I am also using a
> KPA500 for what it's worth.
>
> Dan -- N3ND
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[Elecraft] AGC and SSB - Low signals after Xmit

[Lee Buller]

I this weekend's NAQP SSB contest, I notice times when the K3 went to receive 
the audio volume was low...less signal...but then recovered after a few seconds 
or on the next transmission cycle.

Is there something going on with the AGC?  My K3 is very standard...run of the 
mill settingsslow AGC...factory settings.  But it seems the receiver did 
not 
come back fast enough after Xmit.

Comments?

Lee - K0WA


 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)

Never interfere with anything that isn't bothering you.
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Re: [Elecraft] Unusual Phenomenon OT

[Matthew Pitts]

I heard this sort of thing on Saturday; it's sad that some people will try to 
ruin events like this for other people.

Matthew Pitts
N8OHU

Sent from my Wireless Device

-Original Message-
From: Guy Olinger K2AV 
Sender: elecraft-boun...@mailman.qth.net
Date: Mon, 23 Jan 2012 12:38:25 
To: Dan Atchison
Cc: 
Subject: Re: [Elecraft] Unusual Phenomenon OT

LDE's do not change frequency except in very small (a few Hz).  Someone was
retransmitting part of your call on frequency.  Easy to do that. But he
mis-timed it.  You weren't supposed to hear it.  Just more of the nasty
behavior you sometimes see these days.  73, Guy

On Mon, Jan 23, 2012 at 11:15 AM, Dan Atchison  wrote:

> I am posting this observation here only because I am using a K3.  I do
> not have any clue what may have caused this phenomenon and I'd like
> someone to give me a rational explanation other than magic!
>
> Just a few minutes ago, I was calling HK0NA on 12M SSB.  I was operating
> split (10 kHz) according to both the rig and the P3.  When I un-keyed
> the radio, I heard RX, of course, BUT ALSO the last several characters
> of my callsign.  In other words, I heard "3 November delta."  Yes, I was
> unkeyed.  There was a delay, like an LDE.
>
> I thought that was strange, of course, but them someone came on
> frequency and said, "November Delta he's operating split."  I was
> operating split!  However, I did hit the split button again (with no
> changes on the rig's display or the P3, and my delayed "echo" subsided
> and I worked the station.  There was no operator error even though many
> of you are currently shaking your heads!  IS IT POSSIBLE that the rig
> was actually transmitting on the VFO A freq instead of the VFO B freq
> regardless of the indications on the rig and P3?
>
> What is going on?  This is, indeed, very strange.  I am also using a
> KPA500 for what it's worth.
>
> Dan -- N3ND
> __
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Re: [Elecraft] K3 Hum on transmit

[István Szabó]

I had the same problem with Heil Proset, finally in an angry moment I 
hit the mike to the desk and problem went away probably temporarily. I 
have not found error nor in the K3 mic grounding, neither in the Proset 
capsule wiring. Wanted to buy new mic element, no answer from Heil. 
Still question.

72'

István Szabó



On 1/23/2012 6:31 PM, Hunsdon Cary III wrote:
> Took the mic connector apart, even the Heil mic (gasp!).  Could find no short 
> on the connecting wires, although I did clip out the unused posts in the 
> 8-pin connector.  Put it back together, connected it to the K3 and, 
> miraculously, like Phil, the hum/buzz is gone.  Have no idea what I did, just 
> glad it's gone after only 30" of effort!
> Tnx for the help!
> 73,
> Cary, K4TM
>
> Sent from my iPhone in Lynchburg VA - named a Runner Friendly City by Road 
> Runner's Club of America in 2011.
>
>
> On Jan 23, 2012, at 11:28 AM, Phil Hystad  wrote:
>
>> Cary,
>>
>> I battled a hum/buzz problem just two weeks ago.  After almost a full day 
>> spent hunting, experimenting, searching, and doing everything under the sun 
>> plus some very helpful dialog from others here on Elecraft forum, the 
>> hum/buzz was finally fixed.
>>
>> I did not fix it, it just disappeared.  So, here are some things I did...
>>
>> (1)  I did all my tests with the monitor on and TX in TEST mode since that 
>> in itself showed the hum/buzz.
>>
>> (2)  With the help of Jim Brown (K9YC) I used the TX EQualization feature of 
>> the K3 to crimp down to minimum
>>   the low frequencies of the hum/buzz.  Doing this, it appeared that 
>> this was indeed a buzz and not a 60-cycle
>>   hum because the buzz did not start to be attenuated until after the 
>> 400 Hz TXEQ was set to zero and I started
>>   working on the next higher frequency band.
>>
>> (3)  I was confused as to whether this was front mic and back end mic inputs 
>> or just front.  I finally determined that
>>   this was on the front mic only with 98 percent confidence.  It is not 
>> 100 percent confidence because all of my
>>   experiments to prove one way or the other were a bit scrambled but I 
>> think this was front panel mic only.
>>
>> (4)  I then focused on the mic itself, an Elecraft MH2 hand mic.  
>> Unfortunately it was the only mic I had for the front
>>   panel but if you have more then one then I definitely suggest you test 
>> them all to see if the hum/buzz is
>>   independent of mic.
>>
>> (5)  I jiggled and bumped this front panel mic and connector to see if there 
>> was some loose connection.  Someone
>>   suggested florescent lighting as a noise generated and I tested with 
>> all lights turned off (see next point).
>>
>> (6)  I also had a nice 13.8 Li-nanoPhosphate battery so I disconnected 
>> EVERYTHING from the K3.  The only two
>>   things connected were the 13.8 volt battery on the power and the mic 
>> on the front panel.  No Antenna, no
>>   ground, no other connector to the K3.  Hum/Buzz was still there and in 
>> that test I also turned off the circuit
>>   breaker for all AC in my shack.  Did not help.
>>
>> (7)  After some tests, and other things, the hum just seemed to disappear 
>> and never came back since.  My best
>>   guess is that it was one of the following: (1)  either an external 
>> noise source that eventually turned off and
>>   my front panel mic was just more susceptible to picking it up; or, (2) 
>> the front panel mic itself had some kind
>>   of loose connection that just seemed to finally correct itself.  I 
>> favor cause (1) though.  I am kind of hoping it
>>   comes back so I can test some more.
>>
>> 73, phil, K7PEH
>>
>>
>> On Jan 23, 2012, at 7:37 AM, Hunsdon Cary III wrote:
>>
>>> Don:
>>> You know it's hard to tell the difference between a buzz and a 60 hertz 
>>> hum, at least to my 66 year old ears.  HOWEVER, when I disconnected the mic 
>>> front the front panel connector and used the XMIT button on the front 
>>> panel, there is no buzz or hum!  I'll start troubleshooting the mic cable 
>>> now!
>>> Tnx for your help.
>>> 73,
>>> Cary, K4TM
>>>
>>> On Jan 23, 2012, at 10:23 AM, Don Wilhelm wrote:
>>>
 Cary,

 Is it hum or is it actually "buzz"?  Hum is 60 Hz AC, but buzz will be of 
 various frequencies, and it is difficult to tell them apart with just your 
 ears as detectors.

 Does it disappear if the microphone is not connected?  Use XMIT to put the 
 K3 in transmit while you are listening.  If it is only when the microphone 
 is connected, you may have a broken wire in the mic cable.

 73,
 Don W3FPR

 On 1/23/2012 10:10 AM, Hunsdon Cary III wrote:
> K3 Experts:  My K3-100 has been flawless in its performance until 
> yesterday.  I had a schedule with W5ZNN who told me I had a hum on my 
> signal; I put my headphones on and sure enough there it was on transmit.  
> I tried plugging the Astron 3

Re: [Elecraft] AGC and SSB - Low signals after Xmit

[Bill W4ZV]

Lee Buller wrote
> 
> I this weekend's NAQP SSB contest, I notice times when the K3 went to
> receive 
> the audio volume was low...less signal...but then recovered after a few
> seconds 
> or on the next transmission cycle.
> 
> Is there something going on with the AGC?  My K3 is very standard...run of
> the 
> mill settingsslow AGC...factory settings.  But it seems the receiver
> did not 
> come back fast enough after Xmit.
> 

Was NR enabled?  It can cause problems like this.  BTW I never use Slow AGC
in contests...it's best left for leisurely ragchewing.

73,  Bill


--
View this message in context: 
http://elecraft.365791.n2.nabble.com/AGC-and-SSB-Low-signals-after-Xmit-tp7217053p7217092.html
Sent from the Elecraft mailing list archive at Nabble.com.
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Re: [Elecraft] Unusual Phenomenon OT

[David Gilbert]

Yup.  It would be easy to do, causes more interference than a carrier 
(which can be auto-notched out), and creates additional QRM when others 
on frequency call you out for being a LID.

Dave   AB7E



On 1/23/2012 10:38 AM, Guy Olinger K2AV wrote:
> LDE's do not change frequency except in very small (a few Hz).  Someone was
> retransmitting part of your call on frequency.  Easy to do that. But he
> mis-timed it.  You weren't supposed to hear it.  Just more of the nasty
> behavior you sometimes see these days.  73, Guy
>
> On Mon, Jan 23, 2012 at 11:15 AM, Dan Atchison  wrote:
>
>> I am posting this observation here only because I am using a K3.  I do
>> not have any clue what may have caused this phenomenon and I'd like
>> someone to give me a rational explanation other than magic!
>>
>> Just a few minutes ago, I was calling HK0NA on 12M SSB.  I was operating
>> split (10 kHz) according to both the rig and the P3.  When I un-keyed
>> the radio, I heard RX, of course, BUT ALSO the last several characters
>> of my callsign.  In other words, I heard "3 November delta."  Yes, I was
>> unkeyed.  There was a delay, like an LDE.
>>
>> I thought that was strange, of course, but them someone came on
>> frequency and said, "November Delta he's operating split."  I was
>> operating split!  However, I did hit the split button again (with no
>> changes on the rig's display or the P3, and my delayed "echo" subsided
>> and I worked the station.  There was no operator error even though many
>> of you are currently shaking your heads!  IS IT POSSIBLE that the rig
>> was actually transmitting on the VFO A freq instead of the VFO B freq
>> regardless of the indications on the rig and P3?
>>
>> What is going on?  This is, indeed, very strange.  I am also using a
>> KPA500 for what it's worth.
>>
>> Dan -- N3ND
>> __
>> 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
>>
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Re: [Elecraft] Unusual Phenomenon OT

[Guy Olinger K2AV]

I forgot to add one thing, that Dan is a perfect gentleman and a really
good operator.  I know personally he would NEVER do something like that
intentionally.  His worry that he may somehow have unintentionally done so
is the reason for his posting.  Those of us who know you, Dan, know exactly
what was going on and how transparent that was.   73, Guy.

On Mon, Jan 23, 2012 at 12:38 PM, Guy Olinger K2AV wrote:

> LDE's do not change frequency except in very small (a few Hz).  Someone
> was retransmitting part of your call on frequency.  Easy to do that. But he
> mis-timed it.  You weren't supposed to hear it.  Just more of the nasty
> behavior you sometimes see these days.  73, Guy
>
>
> On Mon, Jan 23, 2012 at 11:15 AM, Dan Atchison  wrote:
>
>> I am posting this observation here only because I am using a K3.  I do
>> not have any clue what may have caused this phenomenon and I'd like
>> someone to give me a rational explanation other than magic!
>>
>> Just a few minutes ago, I was calling HK0NA on 12M SSB.  I was operating
>> split (10 kHz) according to both the rig and the P3.  When I un-keyed
>> the radio, I heard RX, of course, BUT ALSO the last several characters
>> of my callsign.  In other words, I heard "3 November delta."  Yes, I was
>> unkeyed.  There was a delay, like an LDE.
>>
>> I thought that was strange, of course, but them someone came on
>> frequency and said, "November Delta he's operating split."  I was
>> operating split!  However, I did hit the split button again (with no
>> changes on the rig's display or the P3, and my delayed "echo" subsided
>> and I worked the station.  There was no operator error even though many
>> of you are currently shaking your heads!  IS IT POSSIBLE that the rig
>> was actually transmitting on the VFO A freq instead of the VFO B freq
>> regardless of the indications on the rig and P3?
>>
>> What is going on?  This is, indeed, very strange.  I am also using a
>> KPA500 for what it's worth.
>>
>> Dan -- N3ND
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Re: [Elecraft] AGC and SSB - Low signals after Xmit

[Don Wilhelm]

Lee,

Did you have NR turned on?  If so, that is the reason - it takes dome 
time to build a filter around a signal.

73,
Don W3FPR

On 1/23/2012 12:44 PM, Lee Buller wrote:
>
> I this weekend's NAQP SSB contest, I notice times when the K3 went to receive
> the audio volume was low...less signal...but then recovered after a few 
> seconds
> or on the next transmission cycle.
>
> Is there something going on with the AGC?  My K3 is very standard...run of the
> mill settingsslow AGC...factory settings.  But it seems the receiver did 
> not
> come back fast enough after Xmit.
>
> Comments?
>
> Lee - K0WA
>
>
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[Elecraft] 4035 Power Supply

[John Veach]

I'm looking at linear supplies and the MFJ-4035MV looks like a good value. 
Has anyone used one?  Thoughts?

73 Bill NZ0T

I have one Bill.  I replaced a 2225 or something like that switching power 
supply with the 4035. The first one MFJ sent me had a defective volt meter in 
it 
but they promptly replaced it for me. The only complaint I have is that the fan 
is rather noisy. I read about one guy who stuck a resistor in the fan circuit 
to 
slow it down but since I use my cans almost all the time, I don't hear it like 
I 
do when I don't put the headset on.  Overall, for the price, I'm pretty happy 
with my 4035.  


John KE4D
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Re: [Elecraft] K3 Hum on transmit

[Guy Olinger K2AV]

Given ROHS and the new world of lead-free solder that does not always "wet"
to wire or pins, you may find it useful on a mic to reheat ALL the solder
joints in the plug AND in the microphone housing.

Microphones are a very low margin item, and everyone is getting them made
CHEEP somewhere.  There are no tests to measure "just barely soldered"
connections, where the actual connection is only a handful of molecules
wide.

I have not gotten to the point where I do that routinely to brand-new
microphones, but I am sorely tempted.

Microphone cords, per se, can wear out faster than socks.  Power supply
makers spend millions of dollars of research dollars to make power supplies
even cheaper than they are now.  You want to see cheap, flimsy sh*t just
crack open your power supply, especially if you were looking for best
price.  They have made a science of not putting in anything unless it was
absolutely necessary.  They are PLANNING on a certain level of warranty
returns and have that VERY carefully balanced against lowest quality (cost)
components in a COST-ONLY equation.  Careful whom or what you implicitly
trust.  The one disgusting parallel comes from the old admonition to
not visit the sausage line at a meat-packing factory.  Their strategy
depends on your ignorance.

Always remember, tear apart your K3 DEAD LAST after EVERYTHING ELSE is
ruled out.  Most of the things we think are wrong with the transceiver are
external.  You can learn that hard or you can learn that easy.

73, Guy

2012/1/23 István Szabó 

> I had the same problem with Heil Proset, finally in an angry moment I
> hit the mike to the desk and problem went away probably temporarily. I
> have not found error nor in the K3 mic grounding, neither in the Proset
> capsule wiring. Wanted to buy new mic element, no answer from Heil.
> Still question.
>
> 72'
>
> István Szabó
>
>
>
> On 1/23/2012 6:31 PM, Hunsdon Cary III wrote:
> > Took the mic connector apart, even the Heil mic (gasp!).  Could find no
> short on the connecting wires, although I did clip out the unused posts in
> the 8-pin connector.  Put it back together, connected it to the K3 and,
> miraculously, like Phil, the hum/buzz is gone.  Have no idea what I did,
> just glad it's gone after only 30" of effort!
> > Tnx for the help!
> > 73,
> > Cary, K4TM
> >
> > Sent from my iPhone in Lynchburg VA - named a Runner Friendly City by
> Road Runner's Club of America in 2011.
> >
> >
> > On Jan 23, 2012, at 11:28 AM, Phil Hystad  wrote:
> >
> >> Cary,
> >>
> >> I battled a hum/buzz problem just two weeks ago.  After almost a full
> day spent hunting, experimenting, searching, and doing everything under the
> sun plus some very helpful dialog from others here on Elecraft forum, the
> hum/buzz was finally fixed.
> >>
> >> I did not fix it, it just disappeared.  So, here are some things I
> did...
> >>
> >> (1)  I did all my tests with the monitor on and TX in TEST mode since
> that in itself showed the hum/buzz.
> >>
> >> (2)  With the help of Jim Brown (K9YC) I used the TX EQualization
> feature of the K3 to crimp down to minimum
> >>   the low frequencies of the hum/buzz.  Doing this, it appeared
> that this was indeed a buzz and not a 60-cycle
> >>   hum because the buzz did not start to be attenuated until after
> the 400 Hz TXEQ was set to zero and I started
> >>   working on the next higher frequency band.
> >>
> >> (3)  I was confused as to whether this was front mic and back end mic
> inputs or just front.  I finally determined that
> >>   this was on the front mic only with 98 percent confidence.  It is
> not 100 percent confidence because all of my
> >>   experiments to prove one way or the other were a bit scrambled
> but I think this was front panel mic only.
> >>
> >> (4)  I then focused on the mic itself, an Elecraft MH2 hand mic.
>  Unfortunately it was the only mic I had for the front
> >>   panel but if you have more then one then I definitely suggest you
> test them all to see if the hum/buzz is
> >>   independent of mic.
> >>
> >> (5)  I jiggled and bumped this front panel mic and connector to see if
> there was some loose connection.  Someone
> >>   suggested florescent lighting as a noise generated and I tested
> with all lights turned off (see next point).
> >>
> >> (6)  I also had a nice 13.8 Li-nanoPhosphate battery so I disconnected
> EVERYTHING from the K3.  The only two
> >>   things connected were the 13.8 volt battery on the power and the
> mic on the front panel.  No Antenna, no
> >>   ground, no other connector to the K3.  Hum/Buzz was still there
> and in that test I also turned off the circuit
> >>   breaker for all AC in my shack.  Did not help.
> >>
> >> (7)  After some tests, and other things, the hum just seemed to
> disappear and never came back since.  My best
> >>   guess is that it was one of the following: (1)  either an
> external noise source that eventually turned off and
> >>   my front panel mic was

Re: [Elecraft] AGC and SSB - Low signals after Xmit

[ab2tc]

Hi,

Did you use slow AGC and was the RX gain still reduced (from a strong RX
signal) when you started your transmission? If yes to both, it works as
intended. The RX starts back up with the AGC level as it was just before
transmission started.

AB2TC - Knut


Lee Buller wrote
> 
> I this weekend's NAQP SSB contest, I notice times when the K3 went to
> receive 
> the audio volume was low...less signal...but then recovered after a few
> seconds 
> or on the next transmission cycle.
> 
> Is there something going on with the AGC?  My K3 is very standard...run of
> the 
> mill settingsslow AGC...factory settings.  But it seems the receiver
> did not 
> come back fast enough after Xmit.
> 
> Comments?
> 
> Lee - K0WA
> 
> 
> 


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Re: [Elecraft] AGC and SSB - Low signals after Xmit

[David Gilbert]

Same here, and I almost never use slow AGC for anything.  I mistakenly 
started the NAQP this weekend with AGC set to slow, but I quickly 
realized the problem when the gain wasn't recovering fast enough to 
catch the reports of weaker callers ... especially if the AGC had just 
been hit hard by QRM or a strong late caller.   Fast AGC worked just fine.

73,
Dave   AB7E



On 1/23/2012 10:55 AM, Bill W4ZV wrote:
> BTW I never use Slow AGC
> in contests...it's best left for leisurely ragchewing.
>
> 73,  Bill
>
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Re: [Elecraft] 4035 Power Supply

[Buddy Brannan]

FWIW, I have a little Jetstream power supply. This one's 28 amps peak, 25 
continuous, No meters, but I think they make one with meters. They also have a 
45-amp peak one. Nice little switching supply, very small, and the fan is 
quiet, and I haven't heard a bunch of noise from it either. I think I got mine 
from Cheapham.com although you can also check randl.com. Prices on these are 
really very reasonable.
--
Buddy Brannan, KB5ELV - Erie, PA
Phone: (814) 860-3194 or 888-75-BUDDY



On Jan 23, 2012, at 1:33 PM, John Veach wrote:

> I'm looking at linear supplies and the MFJ-4035MV looks like a good value. 
> Has anyone used one?  Thoughts?
> 
> 73 Bill NZ0T
> 
> I have one Bill.  I replaced a 2225 or something like that switching power 
> supply with the 4035. The first one MFJ sent me had a defective volt meter in 
> it 
> but they promptly replaced it for me. The only complaint I have is that the 
> fan 
> is rather noisy. I read about one guy who stuck a resistor in the fan circuit 
> to 
> slow it down but since I use my cans almost all the time, I don't hear it 
> like I 
> do when I don't put the headset on.  Overall, for the price, I'm pretty happy 
> with my 4035.  
> 
> 
> John KE4D
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[Elecraft] Space weather

[kevinr]

http://www.spaceweather.com/

A very interesting day on SpaceWeather.com.  The sun has been and will 
be very active for the next day or so.  The ionosphere is being 
"compressed" from the force of the lastest CME.  When all of this calms 
down I'll bet the bands will be in very good condition.

Kevin.  KD5ONS

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Re: [Elecraft] Portable Power Supply

[Shel Radin KF0UR]

Thanks, Phil (and everyone else).

I'm planning on using the supply with the KX3 at the 10 watt output as well. 
I'm guessing something in the order of 2 amps will be needed.  This should
provide the needed current with a little overhead to spare.

By the way, when I got home last night, I found an old supply from some
external disk drive. It's 12V, 2A and a perfect size.  I hooked it up and I
didn't hear any artifacts or hash on 20, 30 or 40M.  When I transmitted, the
signal sounded OK to my uncalibrated ears listening on my K3, but on the P3,
the signal was VERY dirty looking, especially compared to using a Samlec
1235M.  So, I don't think that's a good solution.

Appreciate the advice...

73, Shel  KF0UR

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Re: [Elecraft] K3 Hum on transmit

[Buck - k4ia]

I have found, on occasion, I get a raspy pulsing noise on the audio.  I 
believe it is coming from a USB connection through an audio switching 
device.  I must make sure the RS232 plug on the back of the K3 is 
securely screwed on (not just pushed on) and wiggling the audio plugs in 
the row below the RS232 and the ACC jacks will make it go away.  I 
haven't figured out exactly which one it is yet.

The K3 is star-point grounded with the computer case but not the audio 
switching device.  I have done the pin1 mic mod.

The plugs are one more thing to check as you look for the source of your 
"hum."

Buck
k4ia


On 1/23/2012 11:28 AM, Phil Hystad wrote:
> Cary,
>
> I battled a hum/buzz problem just two weeks ago.  After almost a full day 
> spent hunting, experimenting, searching, and doing everything under the sun 
> plus some very helpful dialog from others here on Elecraft forum, the 
> hum/buzz was finally fixed.
>
> I did not fix it, it just disappeared.  So, here are some things I did...
>
> (1)  I did all my tests with the monitor on and TX in TEST mode since that in 
> itself showed the hum/buzz.
>
> (2)  With the help of Jim Brown (K9YC) I used the TX EQualization feature of 
> the K3 to crimp down to minimum
>the low frequencies of the hum/buzz.  Doing this, it appeared that 
> this was indeed a buzz and not a 60-cycle
>hum because the buzz did not start to be attenuated until after the 
> 400 Hz TXEQ was set to zero and I started
>working on the next higher frequency band.
>
> (3)  I was confused as to whether this was front mic and back end mic inputs 
> or just front.  I finally determined that
>this was on the front mic only with 98 percent confidence.  It is not 
> 100 percent confidence because all of my
>experiments to prove one way or the other were a bit scrambled but I 
> think this was front panel mic only.
>
> (4)  I then focused on the mic itself, an Elecraft MH2 hand mic.  
> Unfortunately it was the only mic I had for the front
>panel but if you have more then one then I definitely suggest you test 
> them all to see if the hum/buzz is
>independent of mic.
>
> (5)  I jiggled and bumped this front panel mic and connector to see if there 
> was some loose connection.  Someone
>suggested florescent lighting as a noise generated and I tested with 
> all lights turned off (see next point).
>
> (6)  I also had a nice 13.8 Li-nanoPhosphate battery so I disconnected 
> EVERYTHING from the K3.  The only two
>things connected were the 13.8 volt battery on the power and the mic 
> on the front panel.  No Antenna, no
>ground, no other connector to the K3.  Hum/Buzz was still there and in 
> that test I also turned off the circuit
>breaker for all AC in my shack.  Did not help.
>
> (7)  After some tests, and other things, the hum just seemed to disappear and 
> never came back since.  My best
>guess is that it was one of the following: (1)  either an external 
> noise source that eventually turned off and
>my front panel mic was just more susceptible to picking it up; or, (2) 
> the front panel mic itself had some kind
>of loose connection that just seemed to finally correct itself.  I 
> favor cause (1) though.  I am kind of hoping it
>comes back so I can test some more.
>
> 73, phil, K7PEH
>
>
> On Jan 23, 2012, at 7:37 AM, Hunsdon Cary III wrote:
>
>> Don:
>>  You know it's hard to tell the difference between a buzz and a 60 hertz 
>> hum, at least to my 66 year old ears.  HOWEVER, when I disconnected the mic 
>> front the front panel connector and used the XMIT button on the front panel, 
>> there is no buzz or hum!  I'll start troubleshooting the mic cable now!
>>  Tnx for your help.
>>  73,
>>  Cary, K4TM
>>
>> On Jan 23, 2012, at 10:23 AM, Don Wilhelm wrote:
>>
>>> Cary,
>>>
>>> Is it hum or is it actually "buzz"?  Hum is 60 Hz AC, but buzz will be of 
>>> various frequencies, and it is difficult to tell them apart with just your 
>>> ears as detectors.
>>>
>>> Does it disappear if the microphone is not connected?  Use XMIT to put the 
>>> K3 in transmit while you are listening.  If it is only when the microphone 
>>> is connected, you may have a broken wire in the mic cable.
>>>
>>> 73,
>>> Don W3FPR
>>>
>>> On 1/23/2012 10:10 AM, Hunsdon Cary III wrote:
 K3 Experts:  My K3-100 has been flawless in its performance until 
 yesterday.  I had a schedule with W5ZNN who told me I had a hum on my 
 signal; I put my headphones on and sure enough there it was on transmit.  
 I tried plugging the Astron 35M directly into the AC outlet instead of the 
 outlet strip - no luck, hum was still there.  I connected the K3 to my SEC 
 1223 switching power supply and, you guessed it, the hum is still there.  
 I hate to think there's something amiss with the K3 but it looks that way. 
  Any ideas?
 73,
 Cary, K4TM
 Lynchburg VAh

Re: [Elecraft] AGC and SSB - Low signals after Xmit

[Lee Buller]

H.got some things to try out here

I will switch from slow to fast AGC.  I am a slow agc user.  Why?  Dunno

I will also check out the outside relay box too.

Lee - K0WA


 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)

Never interfere with anything that isn't bothering you.
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[Elecraft] Question K3

[Phil LaMarche]

Working split. A is receive on 18.30 and B transmit is 18.120.  After a
short time, without touching the radio, it stays in split but B goes back to
the A frequency by itself.  Done this all day???  Help!

 

Phil

 

Philip LaMarche

 

 

727-944-3226

727-510-5038 Cell 

   www.w9dvm.com

K3 # 1605

KPA500 # 029

P3 #1480

 

 CCA 98-00827

CRA 1701

W9DVM

 

 

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Re: [Elecraft] Space weather

[Fred Jensen]

http://www.n3kl.org/sun/noaa.html and you can watch it play out in 
living color in real-time.

73,

Fred K6DGW
- Northern California Contest Club
- CU in the 2012 Cal QSO Party 6-7 Oct 2012
- www.cqp.org

On 1/23/2012 11:08 AM, kevinr wrote:
> http://www.spaceweather.com/
>
> A very interesting day on SpaceWeather.com.  The sun has been and will
> be very active for the next day or so.  The ionosphere is being
> "compressed" from the force of the lastest CME.  When all of this calms
> down I'll bet the bands will be in very good condition.

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Re: [Elecraft] Question K3

[Guy Olinger K2AV]

You haven't told us what is attached to the radio (or not), and therefore
able to command the radio to do that.  73, Guy.

On Mon, Jan 23, 2012 at 3:23 PM, Phil LaMarche  wrote:

> Working split. A is receive on 18.30 and B transmit is 18.120.  After a
> short time, without touching the radio, it stays in split but B goes back
> to
> the A frequency by itself.  Done this all day???  Help!
>
>
>
> Phil
>
>
>
> Philip LaMarche
>
>
>
>
>
> 727-944-3226
>
> 727-510-5038 Cell
>
>   www.w9dvm.com
>
> K3 # 1605
>
> KPA500 # 029
>
> P3 #1480
>
>
>
>  CCA 98-00827
>
> CRA 1701
>
> W9DVM
>
>
>
>
>
> __
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Re: [Elecraft] Question K3

[Phil LaMarche]

K3/P3/KPA500

 

Philip LaMarche

 

 

727-944-3226

727-510-5038 Cell 

 www.w9dvm.com  

K3 # 1605

KPA500 # 029

P3 #1480

 

 CCA 98-00827

CRA 1701

W9DVM

 

 

From: guyk...@gmail.com [mailto:guyk...@gmail.com] On Behalf Of Guy Olinger
K2AV
Sent: Monday, January 23, 2012 3:34 PM
To: Phil LaMarche
Cc: elecraft@mailman.qth.net
Subject: Re: [Elecraft] Question K3

 

You haven't told us what is attached to the radio (or not), and therefore
able to command the radio to do that.  73, Guy.

On Mon, Jan 23, 2012 at 3:23 PM, Phil LaMarche  wrote:

Working split. A is receive on 18.30 and B transmit is 18.120.  After a
short time, without touching the radio, it stays in split but B goes back to
the A frequency by itself.  Done this all day???  Help!



Phil



Philip LaMarche





727-944-3226

727-510-5038 Cell

  www.w9dvm.com

K3 # 1605

KPA500 # 029

P3 #1480



 CCA 98-00827

CRA 1701

W9DVM





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Re: [Elecraft] Question K3

[Guy Olinger K2AV]

No PC and programs?

On Mon, Jan 23, 2012 at 3:40 PM, Phil LaMarche  wrote:

> K3/P3/KPA500
>
> ** **
>
> Philip LaMarche
>
> ** **
>
>  
>
> 727-944-3226
>
> 727-510-5038 Cell 
>
>  www.w9dvm.com
>
> K3 # 1605
>
> KPA500 # 029
>
> P3 #1480
>
> ** **
>
>  CCA 98-00827
>
> CRA 1701
>
> W9DVM
>
>  
>
> ** **
>
> *From:* guyk...@gmail.com [mailto:guyk...@gmail.com] *On Behalf Of *Guy
> Olinger K2AV
> *Sent:* Monday, January 23, 2012 3:34 PM
> *To:* Phil LaMarche
> *Cc:* elecraft@mailman.qth.net
> *Subject:* Re: [Elecraft] Question K3
>
> ** **
>
> You haven't told us what is attached to the radio (or not), and therefore
> able to command the radio to do that.  73, Guy.
>
> On Mon, Jan 23, 2012 at 3:23 PM, Phil LaMarche 
> wrote:
>
> Working split. A is receive on 18.30 and B transmit is 18.120.  After a
> short time, without touching the radio, it stays in split but B goes back
> to
> the A frequency by itself.  Done this all day???  Help!
>
>
>
> Phil
>
>
>
> Philip LaMarche
>
>
>
>
>
> 727-944-3226
>
> 727-510-5038 Cell
>
>   www.w9dvm.com
>
> K3 # 1605
>
> KPA500 # 029
>
> P3 #1480
>
>
>
>  CCA 98-00827
>
> CRA 1701
>
> W9DVM
>
>
>
>
>
> __
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
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> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>
> ** **
>
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[Elecraft] K3 sidetone

[SAM BRIDGES]

Hello Guys: 
Anyone know how to have the sidetone volume on the K3 go higher than 60? Yes, I 
am half deaf. The Kenwood HS-5 are nice and loud at 45 and the Sennhieser 240 
also does fine. But neither are as comfortable as the AKG K240 phones. The AKG 
headphones are about as deaf as myself. 
Tnx de KJ4ZM Sam 
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Re: [Elecraft] Question K3

[Phil LaMarche]

Sorry .. I'm using CommCat as a direct connect to click on DX spots to
change the K3 to that station and frequency etc.

 

Philip LaMarche

 

 

727-944-3226

727-510-5038 Cell 

 www.w9dvm.com  

K3 # 1605

KPA500 # 029

P3 #1480

 

 CCA 98-00827

CRA 1701

W9DVM

 

 

From: guyk...@gmail.com [mailto:guyk...@gmail.com] On Behalf Of Guy Olinger
K2AV
Sent: Monday, January 23, 2012 3:44 PM
To: Phil LaMarche
Cc: elecraft@mailman.qth.net
Subject: Re: [Elecraft] Question K3

 

No PC and programs?

On Mon, Jan 23, 2012 at 3:40 PM, Phil LaMarche  wrote:

K3/P3/KPA500

 

Philip LaMarche

 

 

727-944-3226

727-510-5038 Cell 

 www.w9dvm.com  

K3 # 1605

KPA500 # 029

P3 #1480

 

 CCA 98-00827

CRA 1701

W9DVM

 

 

From: guyk...@gmail.com [mailto:guyk...@gmail.com] On Behalf Of Guy Olinger
K2AV
Sent: Monday, January 23, 2012 3:34 PM
To: Phil LaMarche
Cc: elecraft@mailman.qth.net
Subject: Re: [Elecraft] Question K3

 

You haven't told us what is attached to the radio (or not), and therefore
able to command the radio to do that.  73, Guy.

On Mon, Jan 23, 2012 at 3:23 PM, Phil LaMarche  wrote:

Working split. A is receive on 18.30 and B transmit is 18.120.  After a
short time, without touching the radio, it stays in split but B goes back to
the A frequency by itself.  Done this all day???  Help!



Phil



Philip LaMarche





727-944-3226

727-510-5038 Cell

  www.w9dvm.com

K3 # 1605

KPA500 # 029

P3 #1480



 CCA 98-00827

CRA 1701

W9DVM





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Re: [Elecraft] K3 Headphone socket problem

[Keith]

Do you have a saved config file from before this problem occurred?
If so, try loading it. (maybe save your current file first).
If you don't have an old file, save your current file, do an EEINIT. You 
will have to set up some basic things, but should be able to test to see 
if the headphone jack problem is fixed.
If fixed, reload your saved config, and write down ALL parameters of all 
menus and also the Filter setup.
The do EEINIT again and enter everything manually.
The headphone switching is all done by computer and gets glitchy sometimes.
Keith

On 1/21/2012 2:20 AM, dk...@aol.com wrote:
> Hello
>
> the menu parameter SPKR+PH is set = NO
>
> When I plug the headphone into the rear socket there is also audio through
> the front socket, but only if I plug in a second headphone also into the
> rear  socket.
>
> If I only plug it into the front socket there is no audio in the headphone
> and the internal speaker is not muted.
> I guess I need a new front socket and how difficult is the replacement?
>
>
> 73 de Harry,  DK2GZ
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Re: [Elecraft] Question K3

[David Gilbert]

It might be a good idea when asking a question like that to let everyone 
know if you have anything else (hardware, software) interfaced to your rig.

Dave   AB7E




On 1/23/2012 1:23 PM, Phil LaMarche wrote:
> Working split. A is receive on 18.30 and B transmit is 18.120.  After a
> short time, without touching the radio, it stays in split but B goes back to
> the A frequency by itself.  Done this all day???  Help!
>
>
>
> Phil
>
>
>
> Philip LaMarche
>
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Re: [Elecraft] K3 Hum on transmit

[Ron D'Eau Claire]

Let me add to Guy's excellent advice something I ran into often when
servicing shipboard radio systems. If you have a curly "stretch" cord on
your mic, they often fail somewhere inside the cord, not at the connectors.
And the failure will often be internal to the wire's insulation, so even if
you tore off the molded exterior, you'd not see the break. But, inside, the
strands of the copper wire have torn and separated. Even high quality mics
generally use very lightweight wires with only a few strands. 

Often just pulling and releasing the tension on the cord will cause the
wires to shift so they are touching again, and they will continue to work
for a while, even if the cord is stretched somewhat. 

The only way I could identify one that "fixed itself" was to work along the
cord, one loop at a time, pulling it straight and twisting it. That will
often locate the problem. But it was seldom worth it. 

Once the problem has been isolated to the mic, as it was in this case, I'd
just replace the whole cord. And be sure the soldered connections are good,
as Vic noted. 

73 Ron AC7AC

-Original Message-

Microphone cords, per se, can wear out faster than socks...

Always remember, tear apart your K3 DEAD LAST after EVERYTHING ELSE is
ruled out.  Most of the things we think are wrong with the transceiver are
external.  You can learn that hard or you can learn that easy.

73, Guy


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[Elecraft] My sub Receiver is DEAF lately; what could be the problem?

[NH7RO]

I am having a similar problem with my K3 sub-receiver; my sub-receiver is not
dead but the signal levels are way down---much more so than they should be.

I noticed this the other day when operating split; I could barely hear the
stations calling the dx unless i hit the REV button.

I recently ran the latest K3 Utility and fixed the dsp error messages that I
was having as well as double-checking (and correcting) the filter settings.

I still have greatly reduced signals on the sub receiver.  This is not an
audio issue as the background hiss sounds as it should when I turn up the
audio level.

I have a day off tomorrow so I'll call elecraft support then;in the meantime
does anyone have any good ideas what the problem could be?

I've been playing around with all the antenna inputs, filter settings, BSET
settings, RX ANT settings, SUB settings to no avail or change.

73,  Jeff 

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View this message in context: 
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Re: [Elecraft] Question K3

[Mike K2MK]

Hi Phil,

I'm not familiar with CommCat but these type of problems always turn out to
be the computer program you are running. You probably refreshed your spot
from the PC and when you did, the spot didn't have any QSX information so
the B VFO was refreshed to equal A. Find a spot where the user has indicated
QSX 18. and I'll bet the A VFO will go the spot frequency and the B VFO
will go to the QSX frequency. I'm just surprised that it didn't also drop
you out of SPLIT. 

Here's the rule of 3s for any K3 problem.
1. It's the computer
2. It's user error
3. It's a K3 software bug

73,
Mike K2MK


Phil LaMarche-2 wrote
> 
> Working split. A is receive on 18.30 and B transmit is 18.120.  After a
> short time, without touching the radio, it stays in split but B goes back
> to
> the A frequency by itself.  Done this all day???  Help!
> 
> Phil
> 


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Re: [Elecraft] AGC and SSB - Low signals after Xmit

[Tommy Alderman]

Another option (for contest), in CONFIG, set AGC-S to a higher number.
Setting mine to 75 during contest seemed to remove the recovery delay.

Tom - W4BQF



-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Lee Buller
Sent: Monday, January 23, 2012 2:47 PM
To: Elecraft Reflector
Subject: Re: [Elecraft] AGC and SSB - Low signals after Xmit


H.got some things to try out here

I will switch from slow to fast AGC.  I am a slow agc user.  Why?  Dunno

I will also check out the outside relay box too.

Lee - K0WA


 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)

Never interfere with anything that isn't bothering you.
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[Elecraft] KX3 Sanyo eneloop batteries

[bodel...@juno.com]

Doing some rainy day day dreaming here.
I have been using the Sanyo eneloop AA batteries in my Yaesu 817 with very good 
results. Thinking about purchasing a set for the KX3 so they will be ready to 
install when it gets here.
Anybody have input on the subject of batteries for the KX3 with internal 
charger charged by a folding PV panel when I am operation portable ?
Mike WB6CLZ

53 Year Old Mom Looks 33
The Stunning Results of Her Wrinkle Trick Has Botox Doctors Worried
http://thirdpartyoffers.juno.com/TGL3141/4f1df781945932f9dc8st06vuc
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Re: [Elecraft] My sub Receiver is DEAF lately; what could be the problem?

[Dick Dievendorff]

It's often an antenna setting problem:  ANT2 versus ANT1, aux bnc versus
transmit antenna, BSET Rx ANT, etc.

Another possibility is that a TMP cable isn't seated correctly.  K3support
may have more ideas.

73 de Dick, K6KR

-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of NH7RO
Sent: Monday, January 23, 2012 2:25 PM
To: elecraft@mailman.qth.net
Subject: [Elecraft] My sub Receiver is DEAF lately; what could be the
problem?

I am having a similar problem with my K3 sub-receiver; my sub-receiver is
not dead but the signal levels are way down---much more so than they should
be.

I noticed this the other day when operating split; I could barely hear the
stations calling the dx unless i hit the REV button.

I recently ran the latest K3 Utility and fixed the dsp error messages that I
was having as well as double-checking (and correcting) the filter settings.

I still have greatly reduced signals on the sub receiver.  This is not an
audio issue as the background hiss sounds as it should when I turn up the
audio level.

I have a day off tomorrow so I'll call elecraft support then;in the meantime
does anyone have any good ideas what the problem could be?

I've been playing around with all the antenna inputs, filter settings, BSET
settings, RX ANT settings, SUB settings to no avail or change.

73,  Jeff 

--
View this message in context:
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[Elecraft] What autotuner to use with KPA500?

[AC6JA]

Just wondering what most people are using with their KPA500's until the  
KAT500 becomes available?
And how are you interfacing the tuner with the KPA500/K3 combination?
Was wondering if/how the LDG 600W or 1KW tuners would work with the  
K3/KPA500 and if the One-Touch-Tune feature could be used?
Any info would be appreciated.
Thanks.

Mike  AC6JA
 
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Re: [Elecraft] What autotuner to use with KPA500?

[Jim Bennett]

Hi Mike -

Prior to building and operating KPA500 #585, I was using (1) a resonant 80 
meter Inverted L, (2) a resonant 160 meter Inverted L, and (3) an 88-foot long, 
45-foot high doublet, fed with 600 ohm ladder line and a 1:1 balun. My K3/100 
internal tuner does a bang-up job matching this antenna on 80-6 meters, 
although it is pretty much an NVIS antenna on 80. Obviously, the KPA500 has no 
problem with the two Inverted L antennas. It is not at all happy with the 
doublet, so for now it is my RX antenna, when necessary. In a feeble attempt to 
remain on the other HF bands, I installed a Hustler 6BTV in the back yard, 
ground mounted, with 40 short radials "sewn" in the grass. Took a few hours to 
get resonance on the 80, 40, 30, 20, 15, and 10 meter CW bands, but I now have 
a temporary "all band" HF antenna that my KPA500 gets along with.

Neither me nor the XYL (KF6ZNT) is too thrilled with a 33-foot aluminum stick 
in the middle of the back yard, but she understands, and I get to operate on 
other than 80 and 160. 

C'mon Elecraft - we need that KAT500! :-)

I had looked at the LDG tuners and the auto tuner(s) from MFJ, but don't want 
to shell out dollars for something that most likely will be inferior to the 
Elecraft unit. 

Waiting semi-patiently for the upcoming KAT500 announcements…

Jim / W6JHB
Folsom, CA


On   Monday, Jan 23, 2012, at  Monday, 5:24 PM, ac...@aol.com wrote:

> Just wondering what most people are using with their KPA500's until the  
> KAT500 becomes available?
> And how are you interfacing the tuner with the KPA500/K3 combination?
> Was wondering if/how the LDG 600W or 1KW tuners would work with the  
> K3/KPA500 and if the One-Touch-Tune feature could be used?
> Any info would be appreciated.
> Thanks.
> 
> Mike  AC6JA
> 
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Re: [Elecraft] What autotuner to use with KPA500?

[Phil Hystad]

I don't use an auto tuner with my K3+KPA500.  I use a Palstar AT1KM to a
delta loop antenna.  As soon as the KAT500 is available though, I will be
slapping the credit card on the counter and placing my order.

73, phil, K7PEH


On Jan 23, 2012, at 5:24 PM, ac...@aol.com wrote:

> Just wondering what most people are using with their KPA500's until the  
> KAT500 becomes available?
> And how are you interfacing the tuner with the KPA500/K3 combination?
> Was wondering if/how the LDG 600W or 1KW tuners would work with the  
> K3/KPA500 and if the One-Touch-Tune feature could be used?
> Any info would be appreciated.
> Thanks.
> 
> Mike  AC6JA
> 
> __
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Re: [Elecraft] Space weather

[Phil Hystad]

This is very similar to the opening scenes of the movie 2012!
And, here it is 2012.  The bands may be in good condition but
I think Santa Monica is going to slip into the Pacific later this
year.  After all, movie movie plots are either true or they
soon become true.  Just look at great movies like Frankenstein's
Monster and Dracula and then look at today's political scene.


On Jan 23, 2012, at 11:08 AM, kevinr wrote:

> http://www.spaceweather.com/
> 
> A very interesting day on SpaceWeather.com.  The sun has been and will 
> be very active for the next day or so.  The ionosphere is being 
> "compressed" from the force of the lastest CME.  When all of this calms 
> down I'll bet the bands will be in very good condition.
> 
> Kevin.  KD5ONS
> 
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[Elecraft] Harris Platinum I Channel 2 TV amps for 6m - Status update

[Lance Collister, W7GJ]

All outstanding orders have now been filled. 10w typically produces around 800 
to 
900w output on 6m; around 25w input typically produces around 1300w output on 
6m.  I 
still have 10 amps left, and will start to advertise them next month if any are 
left 
by then:

http://www.bigskyspaces.com/w7gj/HarrisAmps.htm

I will continue to update the above web page with more notes and suggestions 
and 
photos as appropriate, and will indicate on that page when they are "sold out". 
 If 
you know of some barefoot 6m operator overseas who is in need of power, please 
have 
him contact me.  Although most of the amps sent out so far have been shipped 
via 
insured UPS here in the USA, I have sent out 11 of these amps so far to foreign 
countries.

GL and CU on 6m!  TNX and VY 73, Lance
-- 
Lance Collister, W7GJ
(ex WA3GPL, WA1JXN, WA1JXN/C6A, ZF2OC/ZF8, E51SIX, 3D2LR, 5W0GJ)
P.O. Box 73
Frenchtown, MT   59834-0073
USA
TEL: (406) 626-5728
QTH: DN27ub
URL: http://www.bigskyspaces.com/w7gj
Windows Messenger: w...@hotmail.com
Skype: lanceW7GJ
2m DXCC #11/6m DXCC #815

Interested in 6m EME?  Ask me about subscribing to the Magic Band EME
email group, or just fill in the request box at the bottom of my web
page (above)!
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Re: [Elecraft] AGC and SSB - Low signals after Xmit

[Bill W4ZV]

Tommy Alderman wrote
> 
> Another option (for contest), in CONFIG, set AGC-S to a higher number.
> Setting mine to 75 during contest seemed to remove the recovery delay.
> 
> Tom - W4BQF
> 

AGC-S can only be set as high as 40, so you may be thinking of a different
rig (Orion?).  AGC-S in the K3 ranges from 5 to 40 and AGC-F ranges from 80
to 200.  

K0WA never stated whether he had NR activated, which also could have
contributed to his problem.  I recently experienced this myself while
calling to 4W0VB on 80m and discovered I had accidentally enabled NR instead
of disabling NB.

73,  Bill


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