date:20121231


Bernie,

Are you tuning the desired signal to your sidetone pitch - use the SPOT 
and match the signals to the same tone - when the two are quite close in 
pitch, you will hear a WOW WOW WOW sound of the beat frequency.  When 
that beat sound slows down to nothing, you are at Zero Beat.  Adjust the 
AF Gain control  (and the ST L menu if needed) to make the amplitude of 
the sidetone and the signal about the same to hear that beat note best.


If your tuning is not the problem, then give it another try with 
Spectrogram and a noise generator.
Make certain the CW DAC values (or frequencies if you are displaying 
that) are lower than the CWrev values.
Also make certain the menu sidetone pitch setting matches the center 
frequency you set for FL2, FL3 and FL4.  The transmit frequency is 
offset by that amount by the firmware.


For FL1, since it is wide, you cannot set its center at your sidetone 
pitch, but the passband must be entirely within the Spectrogram 
display.  Make sure you can see the left side of the passband skirt drop 
down significantly before reaching zero frequency.  Failure to do that 
will cause loss of the Single Signal reception - in other words, you 
will hear part of the opposite sideband.


There are also instructions on my website www.w3fpr.com.  Look at part 3 
of the article on K2 Dial Calibration.


BTW - multiply those widths by 10.  That is a 700 Hz filter, not 70 Hz.  
The last zero is not displayed.


73,
Don W3FPR

On 12/31/2012 12:42 PM, Bernie KF0QS wrote:

Dear Folks:

I am the proud owner of K2-10 #6922 and, so far, have been operating it
exclusively on cw (I am building the SSB option right now, though I am a
brass pounder).  It is a fine radio and has caused my TS-850S and AL-80 amp
to gather a lot of dust.

My only problem has been the filter alignment.  I have repeatedly tried to
align the filters, and always seem to end up with a situation where the
passband of the filters never falls within the passband of the receiver at
its maximum bandwidth (I have it set for 150hz).  In other words, the
received signal, when the receiver is right on it, always seems to fall
outside of the 70hz filter (if I tune the receiver to copy the received
signal with the 70hz filter in use, and then switch to the 40 and 20hz
filters, the signal stays within the bandwith).

The last time I tried to align the filters, I used a noise generator and
Spectrogram, and followed Tom Hammond's (N0SS) instructions.  After doing
this, I always need to turn on the RIT and turn a few hz below the received
signal to bring it within the bandwith of the 70hz filter.

What am I doing wrong?  For reference purposes, I have my sidetone set for
600hz.




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Re: [Elecraft] KRC2 Manual configuration?

2012-12-31 Thread Jack Brindle

Joe;

First thing - with the V1.6 firmware, if you want to restore the default 
bandmap configuration, power up the KRC2 while holding down the F4 key.

The real KRC2 Configuration Tool is now on the Elecraft web site. Uninstall any 
other KRC2 COnfig Tool versions and use this one. It should work just fine for 
you.

After trying these two things, if you still cannot get things working, let us 
know.

Jack Brindle, W6FB
Elecraft Engineering


On Dec 31, 2012, at 10:07 AM, Joe Hetrick kc0...@bitjanitor.net wrote:

 So, I'm doing battle with my least favorite piece of Elecraft gear to
 manage...my KRC2.
 
 A while ago it started acting funky and after a lot of hassle I was able
 to update the firmware (though it was already current).  At that same
 time I must have updated the bandmap but only now realized that it's not
 correct.
 
 For the life of me with various PC's both with real and with
 USB--Serial dongles the most I can do is re-flash the firmware,
 consistently; but I *cannot* write a new bandmap.
 
 Typically the config tool will see the KRC2 once and spit out the 1.6
 firmware notice; after that in order for it to be seen again, I have to
 power cycle it, at which point I've tried to shove a bandmap on it, but
 it always fails, and never seems to have the changes I've made.
 
 I would just wire-OR the 3 bands of interest; but; whatever map is in
 there does not activate those 3 bands, ever, yet, due to another
 mapping, they do still source 12V as they should, just not when I need
 them to!
 
 Is there _any_ way to put a bandmap in by hand that doesn't use the
 config tool?  Is the format documented so I could generate it myself and
 put it on via an alternate method?  I'm not concerned with whether or
 not I'd need to write some software of my own to do this..  I just want
 the thing to function for me again!
 
 73,
 
 Joe KC0VKN
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Re: [Elecraft] k-3 2 meter


No soldering is required if you order the factory built power cable.
I am not sure how you found information that it is related to the 2 
meter module, there really is no connection there - unless you order the 
external XV144 which comes only as a kit.

There is no soldering for the K3 kits, mainly mechanical assembly.

BTW - there are no dashes in Elecraft product designations.  There are 2 
exceptions within the mini modules, the N-Gen and the 2T-Gen.


73,
Don W3FPR

On 12/29/2012 1:20 PM, tony rowland wrote:

am thinking of  geting a k-3 100 w/ all the goodies. the only
problem i have is the 2 meter board. am not that great at soldering. thought i 
read somewhere that the power pole now comes
preinstalled and you no longer have to do it yourself.




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Re: [Elecraft] k-3 2 meter

2012-12-31 Thread Ron D'Eau Claire

Hello Tony. New K3's should have the power connector pre-installed. You can
confirm that when you place the order to be sure that your has it
retrofitted. The connector in question is shown on page 11 of the K144XV
manual. You can download it from Elecraft by clicking here:

http://www.elecraft.com/manual/K144XV_Manual_Rev_C.pdf

Note that this is not a PowerPole connector, it's simple one pin connector
that fits in a hole in the K3's main (RF) board. 

73 Ron AC7AC


-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of tony rowland
Sent: Saturday, December 29, 2012 10:21 AM
To: elecraft@mailman.qth.net
Subject: [Elecraft] k-3 2 meter

am thinking of  geting a k-3 100 w/ all the goodies. the only problem i have
is the 2 meter board. am not that great at soldering. thought i read
somewhere that the power pole now comes preinstalled and you no longer have
to do it yourself.

s/tony rowland
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Re: [Elecraft] OT - PSK signal strengths

2012-12-31 Thread Bill Frantz

Most of the stations I contact on 20M PSK31 claim to be running 
25-50 watts, some with beam antennas.


I also notice that the PSK31 signals on my P3 are a lot clearer 
than the ones on my computer waterfall.


Cheers - Bill, AE6JV

On 12/31/12 at 6:22 AM, als...@nc.rr.com (Brian Alsop) wrote:

I found it interesting that PSK31 signal strengths on my 
panadapter are as large as typical CW/SSB signals.


Either there is something magic about PSK or PSKer's are not the wet noodle/5 
watt crowd any more.


---
Bill Frantz| Concurrency is hard. 12 out  | Periwinkle
(408)356-8506  | programmers get it wrong.| 16345 
Englewood Ave
www.pwpconsult.com |- Jeff Frantz | Los Gatos, 
CA 95032


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[Elecraft] K3/100 - SN 7071 - No output on SSB

OK, I just assembled this rig a few days after Christmas (I have the best XYL 
ever), and while I've made hundreds of successful CW contacts, I haven't had 
anyone hear me on SSB.

When TUNE or key on CW, I get the full 100 watt output. 

I believe the microphone works. The VOX trips, I can hear my voice in the 
monitor, and adjust the ALC and CMP levels easily.

However, when I flip the meter over to SWR / RF and speak, there is only one 
bar indication on the RF meter. No matter how much I talk / yell into the 
microphone.

I've been trying to think what might be wrong. I only have the stock 2.7 kHz 
filter, which I installed at FL3. I have the FLTX SB menu set to FL3. I do not 
have the rig in TX TEST mode. In TX TEST mode, there is NO bar in the RF meter. 

What have I done wrong?

Bill Coleman, AA4LR, PP-ASELMail: aa...@arrl.net
Web: http://boringhamradiopart.blogspot.com
Quote: Not within a thousand years will man ever fly!
   -- Wilbur Wright, 1901

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Re: [Elecraft] USB Cable Power Requirements

2012-12-31 Thread Bill Frantz

I have been running my SignaLink USB directly from my MacBook 
Pro for two years now with no problem. I checked the Wikipedia 
page for USB http://en.wikipedia.org/wiki/USB and I think it 
has an explanation:


  Power

  ...

  A unit load is defined as 100 mA in USB 2.0, and 150 mA in 
USB 3.0.
  A device may draw a maximum of 5 unit loads (500 mA) from a 
port in

  USB 2.0; 6 (900 mA) in USB 3.0. ... Every device functions initially
  as low-power but the device may request high-power and will 
get it

  if the power is available on the providing bus.

  ...

  A bus-powered hub initializes itself at 1 unit load and transitions
  to maximum unit loads after it completes hub configuration. Any
  device connected to the hub will draw 1 unit load regardless 
of the

  current draw of devices connected to other ports of the hub (i.e.
  one device connected on a four-port hub will draw only 1 unit load
  despite the fact that more unit loads are being supplied to the
  hub).

  A self-powered hub will supply maximum supported unit loads 
to any

  device connected to it. ...

The MacBook Pro USB ports act as a powered hub. The SignaLink 
probably won't work on a unpowered hub.


Cheers - Bill, AE6JV

On 12/31/12 at 8:21 AM, n...@yahoo.com (Bayard Coolidge) wrote:


BUT, you should be aware that the Signalink USB *does* require an external 
powered
USB hub, because it draws close to 500mA, and says so in its specs, etc.


---
Bill Frantz| If the site is supported by  | Periwinkle
(408)356-8506  | ads, you are the product.| 16345 
Englewood Ave
www.pwpconsult.com |  | Los Gatos, 
CA 95032


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Re: [Elecraft] K3/100 - SN 7071 - No output on SSB

Try setting your MIC SEL so that the last character reads 'H' (for
high).

I had the same problem with a Goldline mic a few years back.

73,
matt W6NIA
 
On Mon, 31 Dec 2012 14:12:19 -0500, you wrote:

OK, I just assembled this rig a few days after Christmas (I have the best XYL 
ever), and while I've made hundreds of successful CW contacts, I haven't had 
anyone hear me on SSB.

When TUNE or key on CW, I get the full 100 watt output. 

I believe the microphone works. The VOX trips, I can hear my voice in the 
monitor, and adjust the ALC and CMP levels easily.

However, when I flip the meter over to SWR / RF and speak, there is only one 
bar indication on the RF meter. No matter how much I talk / yell into the 
microphone.

I've been trying to think what might be wrong. I only have the stock 2.7 kHz 
filter, which I installed at FL3. I have the FLTX SB menu set to FL3. I do not 
have the rig in TX TEST mode. In TX TEST mode, there is NO bar in the RF 
meter. 

What have I done wrong?

Bill Coleman, AA4LR, PP-ASELMail: aa...@arrl.net
Web: http://boringhamradiopart.blogspot.com
Quote: Not within a thousand years will man ever fly!
   -- Wilbur Wright, 1901

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Re: [Elecraft] K3/100 - SN 7071 - No output on SSB


Bill,

You said you can adjust the ALC and CMP levels, but you did not tell us 
the level you adjusted them to.


The proper way to adjust is to set the compression at zero to start, 
then increase the mic gain until you see 5 to 7 bars on the ALC meter 
(do that in TX TEST so you don't bother fellow hams).  Then adjust the 
compression to the level you desire.


If you can't get the 5 to 7 bars (7 bars on peaks) then you do not have 
enough mic gain.  If it is a Heil dynamic mic, you may have to set the 
mic gain range to H in the menu.


73,
Don W3FPR

On 12/31/2012 2:12 PM, Bill Coleman wrote:

OK, I just assembled this rig a few days after Christmas (I have the best XYL 
ever), and while I've made hundreds of successful CW contacts, I haven't had 
anyone hear me on SSB.

When TUNE or key on CW, I get the full 100 watt output.

I believe the microphone works. The VOX trips, I can hear my voice in the 
monitor, and adjust the ALC and CMP levels easily.

However, when I flip the meter over to SWR / RF and speak, there is only one 
bar indication on the RF meter. No matter how much I talk / yell into the 
microphone.

I've been trying to think what might be wrong. I only have the stock 2.7 kHz 
filter, which I installed at FL3. I have the FLTX SB menu set to FL3. I do not 
have the rig in TX TEST mode. In TX TEST mode, there is NO bar in the RF meter.

What have I done wrong?

Bill Coleman, AA4LR, PP-ASELMail: aa...@arrl.net
Web: http://boringhamradiopart.blogspot.com
Quote: Not within a thousand years will man ever fly!
-- Wilbur Wright, 1901

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Re: [Elecraft] K3/100 - SN 7071 - No output on SSB

Tried that. The Heil Pro-Set with the HC4 crystal element really likes the high 
setting. It works on the low setting, but you have to crank the Mic gain way up.

As like I said, I can set the Mic and CMP gain and get indications on the ALC 
and CMP meters, as well as hear myself speak in the monitor.

The problem is NOT that the audio isn't getting into the K3/100 -- the problem 
is that RF is not coming out.

On Dec 31, 2012, at 2:41 PM, Matt Zilmer mzil...@verizon.net wrote:

 Try setting your MIC SEL so that the last character reads 'H' (for
 high).
 
 I had the same problem with a Goldline mic a few years back.
 
 73,
 matt W6NIA
 
 On Mon, 31 Dec 2012 14:12:19 -0500, you wrote:
 
 OK, I just assembled this rig a few days after Christmas (I have the best 
 XYL ever), and while I've made hundreds of successful CW contacts, I haven't 
 had anyone hear me on SSB.
 
 When TUNE or key on CW, I get the full 100 watt output. 
 
 I believe the microphone works. The VOX trips, I can hear my voice in the 
 monitor, and adjust the ALC and CMP levels easily.
 
 However, when I flip the meter over to SWR / RF and speak, there is only one 
 bar indication on the RF meter. No matter how much I talk / yell into the 
 microphone.
 
 I've been trying to think what might be wrong. I only have the stock 2.7 kHz 
 filter, which I installed at FL3. I have the FLTX SB menu set to FL3. I do 
 not have the rig in TX TEST mode. In TX TEST mode, there is NO bar in the RF 
 meter. 
 
 What have I done wrong?
 
 Bill Coleman, AA4LR, PP-ASELMail: aa...@arrl.net
 Web: http://boringhamradiopart.blogspot.com
 Quote: Not within a thousand years will man ever fly!
 -- Wilbur Wright, 1901
 
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Bill Coleman, AA4LR, PP-ASELMail: aa...@mac.com
Quote: Boot, you transistorized tormentor! Boot!
 -- Archibald Asparagus, VeggieTales

Bill Coleman, AA4LR, PP-ASELMail: aa...@arrl.net
Web: http://boringhamradiopart.blogspot.com
Quote: Not within a thousand years will man ever fly!
   -- Wilbur Wright, 1901

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Re: [Elecraft] K3/100 - SN 7071 - No output on SSB


On Dec 31, 2012, at 2:54 PM, Don Wilhelm w3...@embarqmail.com wrote:

 Bill,
 
 You said you can adjust the ALC and CMP levels, but you did not tell us the 
 level you adjusted them to.
 
 The proper way to adjust is to set the compression at zero to start, then 
 increase the mic gain until you see 5 to 7 bars on the ALC meter (do that in 
 TX TEST so you don't bother fellow hams).  Then adjust the compression to the 
 level you desire.

Yes, that's exactly what I did. Using the Heil Pro-Set with the HC4 element, 
and the mic gain in the H range, I end up with a mic gain setting of about 9 
or 10, and a CMP gain setting of 25 to get around 10 dB of compression.

 If you can't get the 5 to 7 bars (7 bars on peaks) then you do not have 
 enough mic gain.  If it is a Heil dynamic mic, you may have to set the mic 
 gain range to H in the menu.

No problem getting bars on the meter.


Bill Coleman, AA4LR, PP-ASELMail: aa...@arrl.net
Web: http://boringhamradiopart.blogspot.com
Quote: Not within a thousand years will man ever fly!
   -- Wilbur Wright, 1901

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Re: [Elecraft] K3/100 - SN 7071 - No output on SSB


Bill,

Then the next logical thing to do is check the filter offset - look on 
the filter and set that offset in the menu (or K3 Utility.
The offset is either positive or negative, so if it is marked with a 
minus sign, did you perhaps interpret that as a dash?
I can't think of anything else that might give you good CW transmit but 
not SSB.


73,
Don W3FPR

On 12/31/2012 3:06 PM, Bill Coleman wrote:

On Dec 31, 2012, at 2:54 PM, Don Wilhelm w3...@embarqmail.com wrote:


Bill,

You said you can adjust the ALC and CMP levels, but you did not tell us the 
level you adjusted them to.

The proper way to adjust is to set the compression at zero to start, then 
increase the mic gain until you see 5 to 7 bars on the ALC meter (do that in TX 
TEST so you don't bother fellow hams).  Then adjust the compression to the 
level you desire.

Yes, that's exactly what I did. Using the Heil Pro-Set with the HC4 element, and the mic 
gain in the H range, I end up with a mic gain setting of about 9 or 10, and a 
CMP gain setting of 25 to get around 10 dB of compression.


If you can't get the 5 to 7 bars (7 bars on peaks) then you do not have enough mic gain.  
If it is a Heil dynamic mic, you may have to set the mic gain range to H in 
the menu.

No problem getting bars on the meter.


Bill Coleman, AA4LR, PP-ASELMail: aa...@arrl.net
Web: http://boringhamradiopart.blogspot.com
Quote: Not within a thousand years will man ever fly!
-- Wilbur Wright, 1901

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[Elecraft] K3 won't shut off?

So I connected my PR6 - 6 meter preamp to my K3 for the first time last week
and work some DX.  At the end of the day I go to shut the radio off and the
display goes blank (hear the relays disengage) but all of the LEDs are still
lit on the radio. and it will not turn back on except to cycle the power on
the power supply.  I discuss this with a friend and he reminds me that there
was a MOD for K3's to put a diode on the KPA3 board for the 12V sense
circuit, but after looking at the MOD sheet on the Elecraft website, it says
that this MOD was incorporated into the radio as of 2009 (my radio less than
a year old).  I remove the fans to check for the 1N4148 on P68A of the KPA3
and it's not there.  So two questions. Has anyone else experienced this
phenomena, and does anyone know. was that diode actually incorporated into
the radio on the board somewhere else and mine is just bad?

 

 

Dr. William J. Schmidt - K9HZ / J68HZ/ 8P6HK/ ZF2HZ/ PJ4HZ

 

Owner - Operator

Big Signal Ranch

Staunton, Illinois

 

email:   mailto:b...@wjschmidt.com b...@wjschmidt.com

 

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Re: [Elecraft] K3/100 - SN 7071 - No output on SSB


On Dec 31, 2012, at 2:12 PM, Bill Coleman aa...@arrl.net wrote:

 OK, I just assembled this rig a few days after Christmas (I have the best XYL 
 ever), and while I've made hundreds of successful CW contacts, I haven't had 
 anyone hear me on SSB.
 
 When TUNE or key on CW, I get the full 100 watt output. 
 
 I believe the microphone works. The VOX trips, I can hear my voice in the 
 monitor, and adjust the ALC and CMP levels easily.
 
 However, when I flip the meter over to SWR / RF and speak, there is only one 
 bar indication on the RF meter. No matter how much I talk / yell into the 
 microphone.
 
 I've been trying to think what might be wrong. I only have the stock 2.7 kHz 
 filter, which I installed at FL3. I have the FLTX SB menu set to FL3. I do 
 not have the rig in TX TEST mode. In TX TEST mode, there is NO bar in the RF 
 meter. 
 
 What have I done wrong?

OK. I figure this out.

During the installation of the KREF3 board, I busted C2 off the board while 
trimming a connector lead. Gary is already working on sending me a replacement.

To verify this was the cause, I carefully tack soldered a small ceramic disc 
capacitor to the connection points. SSB now works. 

Sorry to mess up the list with my stupidity.

Bill Coleman, AA4LR, PP-ASELMail: aa...@arrl.net
Web: http://boringhamradiopart.blogspot.com
Quote: Not within a thousand years will man ever fly!
   -- Wilbur Wright, 1901

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[Elecraft] [KAT500] Looking for a microcontroller project that reads transceiver serial frequency messages and outputs BCD bands

2012-12-31 Thread Dick Dievendorff

I vaguely recall seeing an e-mail over the last few months describing a
small microcontroller project that reads Kenwood RS-232 frequency messages
and outputs the four Elecraft / Unified Microsystems / Yaesu TTL level band
lines (sometimes described as a BCD encoding) described as BAND0 thru
BAND3 in the K3 Owner's manual description of the ACC connector.

 

We have a query from a Kenwood transceiver owner that would like to supply
band information to his KAT500 from his Kenwood radio so that the ATU tracks
band changes without requiring transmission.

 

I believe that a commercial band decoder (very likely one of microHAM's
units) might do this as well.

 

Can someone help me find the URL of that project description?  I recall it
was a UK ham, but my memory is a bit fuzzy.

 

73 de Dick, K6KR

 

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Re: [Elecraft] [KAT500] Looking for a microcontroller project that reads transceiver serial frequency messages and outputs BCD bands

2012-12-31 Thread iain macdonnell - N6ML

You may be thinking of this:

http://www.geekshed.co.uk/icom-ci-v-or-band-data-to-yaesu-bcd-band-data-converter/

but it doesn't solve the Kenwood problem.

I think the KRC2 *may* be able to output BCD representing band data
gleaned from Kenwood serial traffic, but I'm not sure. W6FB would
know, of course.

73,

~iain / N6ML


On Mon, Dec 31, 2012 at 12:41 PM, Dick Dievendorff die...@comcast.net wrote:
 I vaguely recall seeing an e-mail over the last few months describing a
 small microcontroller project that reads Kenwood RS-232 frequency messages
 and outputs the four Elecraft / Unified Microsystems / Yaesu TTL level band
 lines (sometimes described as a BCD encoding) described as BAND0 thru
 BAND3 in the K3 Owner's manual description of the ACC connector.



 We have a query from a Kenwood transceiver owner that would like to supply
 band information to his KAT500 from his Kenwood radio so that the ATU tracks
 band changes without requiring transmission.



 I believe that a commercial band decoder (very likely one of microHAM's
 units) might do this as well.



 Can someone help me find the URL of that project description?  I recall it
 was a UK ham, but my memory is a bit fuzzy.



 73 de Dick, K6KR



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[Elecraft] [K3] K144XV adjacent channel rejection in FM

2012-12-31 Thread Pierfrancesco Caci


How good is the K144XV at keeping a signal 12.5 kHz away, from someone
just a few km nearby, under control? 

-- 
Pierfrancesco Caci, ik5pvx
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[Elecraft] Key Out issue

2012-12-31 Thread Paul Ormandy ZL4PW

Hi all,

Am hoping someone can help me with a problem. I have a K3 with a KD9SV rx antenna switch and use the
Key Out line to toggle this device.

For some reason, the K3 will not send the key Out low in CW mode via:

- external software (Logger32, N1MM)
- the macro buttons
- a paddle plugged in the rear port

It won't send it low using any software-oriented mode, e.g. voice keyer or
MMVARI either.

However, it does send it low when PTT is activated, i.e. by a footswitch, and will do so when the K3
is in CW mode as well as SSB so in the meantime I can toggle the rx ant switch with the footswitch.
So it seems the cabling and MOSFET controlling the Key Out lien are functioning correctly.

Have just downloaded the latest firmware, the latest firmware installer and the problem persists. I
have tried EEINIT prior to reloading the complete firmware, tried loading older configurations etc...

My usual set-up is K3/KPA500/KAT500 connected via the serial cables for control and keying. I have
tried disconnecting all external equipment save the rx ant switch and used the M1-M4 macros to
generate code with VOX on and it still won't operate the Key Out line.

The KD9SV box also has a rig-saver interface, this is not connected to the amp.

Makes no difference if in VOX or QSK off/on or set PTT to OFF-OFF and use the
paddle or M1-M4 macros.

I have

Cheers,

Paul

Paul Ormandy, ZL4PW, Oamaru, New Zealand
http://www.zl4pw.orconhosting.net.nz/
www.radiodx.com

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Re: [Elecraft] K3 won't shut off?

2012-12-31 Thread iain macdonnell - N6ML

Does the K3 power off fully if you disconnect the ACC connector? It
sounds like something is pulling pin 8 down

73,

~iain / N6ML


On Mon, Dec 31, 2012 at 12:20 PM, Dr. William J. Schmidt, II
b...@wjschmidt.com wrote:
 So I connected my PR6 - 6 meter preamp to my K3 for the first time last week
 and work some DX.  At the end of the day I go to shut the radio off and the
 display goes blank (hear the relays disengage) but all of the LEDs are still
 lit on the radio. and it will not turn back on except to cycle the power on
 the power supply.  I discuss this with a friend and he reminds me that there
 was a MOD for K3's to put a diode on the KPA3 board for the 12V sense
 circuit, but after looking at the MOD sheet on the Elecraft website, it says
 that this MOD was incorporated into the radio as of 2009 (my radio less than
 a year old).  I remove the fans to check for the 1N4148 on P68A of the KPA3
 and it's not there.  So two questions. Has anyone else experienced this
 phenomena, and does anyone know. was that diode actually incorporated into
 the radio on the board somewhere else and mine is just bad?





 Dr. William J. Schmidt - K9HZ / J68HZ/ 8P6HK/ ZF2HZ/ PJ4HZ



 Owner - Operator

 Big Signal Ranch

 Staunton, Illinois



 email:   mailto:b...@wjschmidt.com b...@wjschmidt.com



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[Elecraft] KX3 and W2 have been sold

2012-12-31 Thread NZ8J

The KX3 and W2 I posted for sale earlier today have been sold
Thanks 
Tim
Nz8J
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Re: [Elecraft] [KAT500] Looking for a microcontroller project that reads transceiver serial frequency messages and outputs BCD bands

2012-12-31 Thread Dick Dievendorff

Thanks, Iain.  This is the project I remembered, but as sometimes happens as
I age, some of the details were wrong.  

A similar project might be used to decode the serial data stream from any
number of transceivers, perhaps with the addition of an RS-232 level
shifter.  

And of course a small microcontroller with two serial ports might be used to
read frequency information from most any CAT-enabled transceiver (using
RS-232 or CI-V messages) and send KAT500 serial messages to perform memory
tune operations to the bin boundary without requiring transmission.

It's amazing what a $5 microcontroller or $30-35 Arduino, Chip-Kit,
Raspberry Pi or a $13 Stellaris Launchpad evaluation board can do these
days!

73 de Dick, K6KR

-Original Message-
From: dse...@dseven.org [mailto:dse...@dseven.org] On Behalf Of iain
macdonnell - N6ML
Sent: Monday, December 31, 2012 1:03 PM
To: Dick Dievendorff
Cc: Elecraft@mailman.qth.net
Subject: Re: [Elecraft] [KAT500] Looking for a microcontroller project that
reads transceiver serial frequency messages and outputs BCD bands

You may be thinking of this:

http://www.geekshed.co.uk/icom-ci-v-or-band-data-to-yaesu-bcd-band-data-conv
erter/

but it doesn't solve the Kenwood problem.

I think the KRC2 *may* be able to output BCD representing band data gleaned
from Kenwood serial traffic, but I'm not sure. W6FB would know, of
course.

73,

~iain / N6ML


On Mon, Dec 31, 2012 at 12:41 PM, Dick Dievendorff die...@comcast.net
wrote:
 I vaguely recall seeing an e-mail over the last few months describing 
 a small microcontroller project that reads Kenwood RS-232 frequency 
 messages and outputs the four Elecraft / Unified Microsystems / Yaesu 
 TTL level band lines (sometimes described as a BCD encoding) 
 described as BAND0 thru
 BAND3 in the K3 Owner's manual description of the ACC connector.



 We have a query from a Kenwood transceiver owner that would like to 
 supply band information to his KAT500 from his Kenwood radio so that 
 the ATU tracks band changes without requiring transmission.



 I believe that a commercial band decoder (very likely one of 
 microHAM's
 units) might do this as well.



 Can someone help me find the URL of that project description?  I 
 recall it was a UK ham, but my memory is a bit fuzzy.



 73 de Dick, K6KR



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Re: [Elecraft] AA4LR K3/100 - SN 7071 - No output on SSB

On Mon, 31 Dec 2012 14:08:18 -0700, you wrote:

Check you have the roofing filter offset entered correctly from the side 
of the 2.7 filter.

On Gary's point, make sure you have the numeric sign set correctly
too.  I had a friend over here with similar symptoms.  He'd entered a
plus offset when it was a minus (took us a while to find that one!).

Also check REF CAL is accurately done as it can affect the SSB RF output 
too.

Whatever is not working, Elecaft's reputation for stellar support is
well-deserved more than just a reputation.

matt W6NIA
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Re: [Elecraft] K3 won't shut off?

I cannot be certain, but I would expect the production would be of the 
SMD variety rather than the discrete leaded diode that was used for the mod.


73,
Don W3FPR

On 12/31/2012 3:20 PM, Dr. William J. Schmidt, II wrote:

So I connected my PR6 - 6 meter preamp to my K3 for the first time last week
and work some DX.  At the end of the day I go to shut the radio off and the
display goes blank (hear the relays disengage) but all of the LEDs are still
lit on the radio. and it will not turn back on except to cycle the power on
the power supply.  I discuss this with a friend and he reminds me that there
was a MOD for K3's to put a diode on the KPA3 board for the 12V sense
circuit, but after looking at the MOD sheet on the Elecraft website, it says
that this MOD was incorporated into the radio as of 2009 (my radio less than
a year old).  I remove the fans to check for the 1N4148 on P68A of the KPA3
and it's not there.  So two questions. Has anyone else experienced this
phenomena, and does anyone know. was that diode actually incorporated into
the radio on the board somewhere else and mine is just bad?



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Re: [Elecraft] K3 won't shut off?

Yes, it works fine with the preamp completely removed... 


Dr. William J. Schmidt - K9HZ / J68HZ/ 8P6HK/ ZF2HZ

Owner - Operator
Big Signal Ranch
Staunton, Illinois

email:  b...@wjschmidt.com

-Original Message-
From: dse...@dseven.org [mailto:dse...@dseven.org] On Behalf Of iain
macdonnell - N6ML
Sent: Monday, December 31, 2012 3:18 PM
To: b...@wjschmidt.com
Cc: Elecraft Mailing List
Subject: Re: [Elecraft] K3 won't shut off?

Does the K3 power off fully if you disconnect the ACC connector? It sounds
like something is pulling pin 8 down

73,

~iain / N6ML


On Mon, Dec 31, 2012 at 12:20 PM, Dr. William J. Schmidt, II
b...@wjschmidt.com wrote:
 So I connected my PR6 - 6 meter preamp to my K3 for the first time 
 last week and work some DX.  At the end of the day I go to shut the 
 radio off and the display goes blank (hear the relays disengage) but 
 all of the LEDs are still lit on the radio. and it will not turn back 
 on except to cycle the power on the power supply.  I discuss this with 
 a friend and he reminds me that there was a MOD for K3's to put a 
 diode on the KPA3 board for the 12V sense circuit, but after looking 
 at the MOD sheet on the Elecraft website, it says that this MOD was 
 incorporated into the radio as of 2009 (my radio less than a year 
 old).  I remove the fans to check for the 1N4148 on P68A of the KPA3 
 and it's not there.  So two questions. Has anyone else experienced 
 this phenomena, and does anyone know. was that diode actually incorporated
into the radio on the board somewhere else and mine is just bad?





 Dr. William J. Schmidt - K9HZ / J68HZ/ 8P6HK/ ZF2HZ/ PJ4HZ



 Owner - Operator

 Big Signal Ranch

 Staunton, Illinois



 email:   mailto:b...@wjschmidt.com b...@wjschmidt.com



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Re: [Elecraft] K3 won't shut off?

2012-12-31 Thread iain macdonnell - N6ML

I would check inside the DE15 connector - maybe something is shorting
pin 8 to ground inside there.

73,

~iain / N6ML


On Mon, Dec 31, 2012 at 1:49 PM, Dr. William J. Schmidt, II
b...@wjschmidt.com wrote:
 Yes, it works fine with the preamp completely removed...


 Dr. William J. Schmidt - K9HZ / J68HZ/ 8P6HK/ ZF2HZ

 Owner - Operator
 Big Signal Ranch
 Staunton, Illinois

 email:  b...@wjschmidt.com

 -Original Message-
 From: dse...@dseven.org [mailto:dse...@dseven.org] On Behalf Of iain
 macdonnell - N6ML
 Sent: Monday, December 31, 2012 3:18 PM
 To: b...@wjschmidt.com
 Cc: Elecraft Mailing List
 Subject: Re: [Elecraft] K3 won't shut off?

 Does the K3 power off fully if you disconnect the ACC connector? It sounds
 like something is pulling pin 8 down

 73,

 ~iain / N6ML


 On Mon, Dec 31, 2012 at 12:20 PM, Dr. William J. Schmidt, II
 b...@wjschmidt.com wrote:
 So I connected my PR6 - 6 meter preamp to my K3 for the first time
 last week and work some DX.  At the end of the day I go to shut the
 radio off and the display goes blank (hear the relays disengage) but
 all of the LEDs are still lit on the radio. and it will not turn back
 on except to cycle the power on the power supply.  I discuss this with
 a friend and he reminds me that there was a MOD for K3's to put a
 diode on the KPA3 board for the 12V sense circuit, but after looking
 at the MOD sheet on the Elecraft website, it says that this MOD was
 incorporated into the radio as of 2009 (my radio less than a year
 old).  I remove the fans to check for the 1N4148 on P68A of the KPA3
 and it's not there.  So two questions. Has anyone else experienced
 this phenomena, and does anyone know. was that diode actually incorporated
 into the radio on the board somewhere else and mine is just bad?





 Dr. William J. Schmidt - K9HZ / J68HZ/ 8P6HK/ ZF2HZ/ PJ4HZ



 Owner - Operator

 Big Signal Ranch

 Staunton, Illinois



 email:   mailto:b...@wjschmidt.com b...@wjschmidt.com



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[Elecraft] Question

2012-12-31 Thread Milt -- N5IA


Don and the list,

This is my first time to need any guidance.  I appreciate in advance the 
reply to my question.


The BNC connector for the AUX RF input has become loose on my K3.

I cannot determine the best manner of accessing the inside of the rear panel 
so I can tighten the nut on the rear of the connector body.


It has been 4+ years since I have had this radio open and do not remember 
(nor can I find in the construction manual) the most efficient, least 
obtrusive method of gaining access to the rear of the connector.


All suggestions are appreciated.

Thanks, and Happy New Year to everyone.

de Milt, N5IA 




-
No virus found in this message.
Checked by AVG - www.avg.com
Version: 2013.0.2805 / Virus Database: 2637/5975 - Release Date: 12/20/12
Internal Virus Database is out of date.

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Re: [Elecraft] AA4LR K3/100 - SN 7071 - No output on SSB

2012-12-31 Thread Gary Surrency

A typical 2.7 filter offset will be something like -0.91 or -0.89 with 
the negative sign definitely to be included in the menu or filter setup 
in the K3 Utility.


--
73, Gary AB7MY

=
supp...@elecraft.com
Elecraft Technical Support
  


On 12/31/2012 2:37 PM, Matt Zilmer wrote:

On Mon, 31 Dec 2012 14:08:18 -0700, you wrote:


Check you have the roofing filter offset entered correctly from the side
of the 2.7 filter.

On Gary's point, make sure you have the numeric sign set correctly
too.  I had a friend over here with similar symptoms.  He'd entered a
plus offset when it was a minus (took us a while to find that one!).

Also check REF CAL is accurately done as it can affect the SSB RF output
too.

Whatever is not working, Elecaft's reputation for stellar support is
well-deserved more than just a reputation.

matt W6NIA



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Re: [Elecraft] [KAT500] Looking for a microcontroller project that reads transceiver serial frequency messages and outputs BCD bands

2012-12-31 Thread Jack Brindle

As usual, Iain is correct. The KRC2 normally outputs standard BCD (check the 
KRC2 manual for details) for the band that is currently selected. The serial 
input selection does read Kenwood/Elecraft serial data, outputting it to the 
decoder terminals as well as the BCD terminals. It should work quite well in 
this application.

73!

Jack B, W6FB

On Dec 31, 2012, at 1:02 PM, iain macdonnell - N6ML a...@dseven.org wrote:

 You may be thinking of this:
 
 http://www.geekshed.co.uk/icom-ci-v-or-band-data-to-yaesu-bcd-band-data-converter/
 
 but it doesn't solve the Kenwood problem.
 
 I think the KRC2 *may* be able to output BCD representing band data
 gleaned from Kenwood serial traffic, but I'm not sure. W6FB would
 know, of course.
 
 73,
 
~iain / N6ML
 
 
 On Mon, Dec 31, 2012 at 12:41 PM, Dick Dievendorff die...@comcast.net wrote:
 I vaguely recall seeing an e-mail over the last few months describing a
 small microcontroller project that reads Kenwood RS-232 frequency messages
 and outputs the four Elecraft / Unified Microsystems / Yaesu TTL level band
 lines (sometimes described as a BCD encoding) described as BAND0 thru
 BAND3 in the K3 Owner's manual description of the ACC connector.
 
 
 
 We have a query from a Kenwood transceiver owner that would like to supply
 band information to his KAT500 from his Kenwood radio so that the ATU tracks
 band changes without requiring transmission.
 
 
 
 I believe that a commercial band decoder (very likely one of microHAM's
 units) might do this as well.
 
 
 
 Can someone help me find the URL of that project description?  I recall it
 was a UK ham, but my memory is a bit fuzzy.
 
 
 
 73 de Dick, K6KR
 
 
 
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[Elecraft] N-gen question

Couple of questions on the N-gen:

1. The instruction sheet gives 35 dB of Excess Noise Output.  Is
this referenced to -174 dBm or some other?

I'm seeing S0 on a KX3 with the switch OFF, and S5-6 with the switch
on.  Seems usable.  I have S5 at -97 dBm, S6 at -91 dBm.  So the
reference level is around -132 to -126 dBm, if I read this spec
correctly.

2. Can someone reference a data sheet for the MAR-1 MMIC?  I'm going
to search for it, but thought someone might have it around.

The N-gen makes a nice 30 minute build, and is fun.  Parents are still
giving me kits even though I'm 55 y/o - because they want to watch me
build them - yes, right on the spot in their living room in Tucson.

I restrained meself until we got back to SoCal and I had my wrist
strap on.

Happy New Year to All.

73,
matt W6NIA
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[Elecraft] [KAT500]schematic

2012-12-31 Thread ab2tc

Hi all,

Will a schematic be forthcoming soon for the KAT500? I have noticed that the
port to port isolation between the 3 antenna ports is rather poor, even
worse than the RX/MAIN antenna isolation on the K3 which has received plenty
of complaints in the past. I am guessing that unused antenna ports are not
grounded on the KAT500. Had they been, isolation should have been much
better. I am surprised that Elecraft pays so little attention to these
things. If the antenna relays are of the changeover kind and have been
oriented correctly adding a ground shunt should be easy. But we need
schematics.

Anyway, it's still a great product. Happy new year!

AB2TC - Knut



--
View this message in context: 
http://elecraft.365791.n2.nabble.com/KAT500-schematic-tp7568007.html
Sent from the Elecraft mailing list archive at Nabble.com.
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Re: [Elecraft] N-gen question

2012-12-31 Thread Robert Friess

Hi Matt,

The 35dB excess noise is in reference to  a 50 ohm resistor at room
temperature.  The power is a function of bandwidth.  If the bandwidth is
500 Hz, that is -174dBm.

Here is the MAR1 data sheet

http://www.minicircuits.com/pdfs/MAR-1+.pdf

73 and Happy New Year,

Bob, N6CM



On Mon, Dec 31, 2012 at 2:33 PM, Matt Zilmer mzil...@verizon.net wrote:

 Couple of questions on the N-gen:

 1. The instruction sheet gives 35 dB of Excess Noise Output.  Is
 this referenced to -174 dBm or some other?

 I'm seeing S0 on a KX3 with the switch OFF, and S5-6 with the switch
 on.  Seems usable.  I have S5 at -97 dBm, S6 at -91 dBm.  So the
 reference level is around -132 to -126 dBm, if I read this spec
 correctly.

 2. Can someone reference a data sheet for the MAR-1 MMIC?  I'm going
 to search for it, but thought someone might have it around.

 The N-gen makes a nice 30 minute build, and is fun.  Parents are still
 giving me kits even though I'm 55 y/o - because they want to watch me
 build them - yes, right on the spot in their living room in Tucson.

 I restrained meself until we got back to SoCal and I had my wrist
 strap on.

 Happy New Year to All.

 73,
 matt W6NIA
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Re: [Elecraft] [KAT500] Looking for a microcontroller project that reads transceiver serial frequency messages and outputs BCD bands

2012-12-31 Thread Joe Subich, W4TV



Dick,


I believe that a commercial band decoder (very likely one of
microHAM's units) might do this as well.


Of course it will G.

Station Master can be used either by programming one of the antenna
switch ports to generate BCD or by using the amplifier control port
as if one were driving the KPA500/FL-7000/Quadra.

73,

   ... Joe, W4TV


On 12/31/2012 3:41 PM, Dick Dievendorff wrote:

I vaguely recall seeing an e-mail over the last few months describing a
small microcontroller project that reads Kenwood RS-232 frequency messages
and outputs the four Elecraft / Unified Microsystems / Yaesu TTL level band
lines (sometimes described as a BCD encoding) described as BAND0 thru
BAND3 in the K3 Owner's manual description of the ACC connector.



We have a query from a Kenwood transceiver owner that would like to supply
band information to his KAT500 from his Kenwood radio so that the ATU tracks
band changes without requiring transmission.



I believe that a commercial band decoder (very likely one of microHAM's
units) might do this as well.



Can someone help me find the URL of that project description?  I recall it
was a UK ham, but my memory is a bit fuzzy.



73 de Dick, K6KR



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Re: [Elecraft] N-gen question

Thanks very much, Bob.  Should I look for you during SKN tonight?

73,
matt

On Mon, 31 Dec 2012 14:53:20 -0800, you wrote:

Hi Matt,

The 35dB excess noise is in reference to  a 50 ohm resistor at room
temperature.  The power is a function of bandwidth.  If the bandwidth is
500 Hz, that is -174dBm.

Here is the MAR1 data sheet

http://www.minicircuits.com/pdfs/MAR-1+.pdf

73 and Happy New Year,

Bob, N6CM



On Mon, Dec 31, 2012 at 2:33 PM, Matt Zilmer mzil...@verizon.net wrote:

 Couple of questions on the N-gen:

 1. The instruction sheet gives 35 dB of Excess Noise Output.  Is
 this referenced to -174 dBm or some other?

 I'm seeing S0 on a KX3 with the switch OFF, and S5-6 with the switch
 on.  Seems usable.  I have S5 at -97 dBm, S6 at -91 dBm.  So the
 reference level is around -132 to -126 dBm, if I read this spec
 correctly.

 2. Can someone reference a data sheet for the MAR-1 MMIC?  I'm going
 to search for it, but thought someone might have it around.

 The N-gen makes a nice 30 minute build, and is fun.  Parents are still
 giving me kits even though I'm 55 y/o - because they want to watch me
 build them - yes, right on the spot in their living room in Tucson.

 I restrained meself until we got back to SoCal and I had my wrist
 strap on.

 Happy New Year to All.

 73,
 matt W6NIA
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Re: [Elecraft] [KAT500] Looking for a microcontroller project that reads transceiver serial frequency messages and outputs BCD bands

2012-12-31 Thread Dick Dievendorff

And I'm embarrassed to have had to be informed that our own KRC2 will
perform a similar function. 

But what I was really looking for was the under $20 PIC project URL that
N6ML found for me.  

And it might even be easier to do with a PIC that has two serial ports, one
speaking Kenwood (or ICOM CI-V, or Elecraft K3), the other speaking KAT500.
Maybe a couple of level shifters.  

73  Happy New Year, Joe!

Dick



-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Joe Subich, W4TV
Sent: Monday, December 31, 2012 2:54 PM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] [KAT500] Looking for a microcontroller project that
reads transceiver serial frequency messages and outputs BCD bands


Dick,

 I believe that a commercial band decoder (very likely one of 
 microHAM's units) might do this as well.

Of course it will G.

Station Master can be used either by programming one of the antenna switch
ports to generate BCD or by using the amplifier control port as if one were
driving the KPA500/FL-7000/Quadra.

73,

... Joe, W4TV


On 12/31/2012 3:41 PM, Dick Dievendorff wrote:
 I vaguely recall seeing an e-mail over the last few months describing 
 a small microcontroller project that reads Kenwood RS-232 frequency 
 messages and outputs the four Elecraft / Unified Microsystems / Yaesu 
 TTL level band lines (sometimes described as a BCD encoding) 
 described as BAND0 thru
 BAND3 in the K3 Owner's manual description of the ACC connector.



 We have a query from a Kenwood transceiver owner that would like to 
 supply band information to his KAT500 from his Kenwood radio so that 
 the ATU tracks band changes without requiring transmission.



 I believe that a commercial band decoder (very likely one of 
 microHAM's
 units) might do this as well.



 Can someone help me find the URL of that project description?  I 
 recall it was a UK ham, but my memory is a bit fuzzy.



 73 de Dick, K6KR



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Re: [Elecraft] Question


Milt,

The most direct way is to remove the right side panel.
You will find instructions to do that on page 26 of the KRX3 
installation manual.  You will probably have to remove the KRX3 assembly 
to gain access to the nuts holding the two regulators to the side panel.


73,
Don W3FPR

On 12/31/2012 5:16 PM, Milt -- N5IA wrote:

Don and the list,

This is my first time to need any guidance.  I appreciate in advance 
the reply to my question.


The BNC connector for the AUX RF input has become loose on my K3.

I cannot determine the best manner of accessing the inside of the rear 
panel so I can tighten the nut on the rear of the connector body.


It has been 4+ years since I have had this radio open and do not 
remember (nor can I find in the construction manual) the most 
efficient, least obtrusive method of gaining access to the rear of the 
connector.


All suggestions are appreciated.

Thanks, and Happy New Year to everyone.

de Milt, N5IA


-
No virus found in this message.
Checked by AVG - www.avg.com
Version: 2013.0.2805 / Virus Database: 2637/5975 - Release Date: 12/20/12
Internal Virus Database is out of date.

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Re: [Elecraft] Question

2012-12-31 Thread Milt -- N5IA


OK Don.

That is what I had figured out but wanted to know if there was a simpler 
method.  Yeah, the KRX3 has to come out to get at the regulator nuts.  They 
are too tight between the KRX3 and the side panel to do otherwise.  That was 
what had me stumped.  Didn't want to disturb them.  But, it is what it is. 
Now to find the KRX3 manual.  Thanks, and Happy new Year.


de Milt, N5IA


-Original Message- 
From: Don Wilhelm

Sent: Monday, December 31, 2012 4:16 PM
To: Milt -- N5IA
Cc: 'Elecraft Mailing List'
Subject: Re: [Elecraft] Question

Milt,

The most direct way is to remove the right side panel.
You will find instructions to do that on page 26 of the KRX3
installation manual.  You will probably have to remove the KRX3 assembly
to gain access to the nuts holding the two regulators to the side panel.

73,
Don W3FPR

On 12/31/2012 5:16 PM, Milt -- N5IA wrote:

Don and the list,

This is my first time to need any guidance.  I appreciate in advance the 
reply to my question.


The BNC connector for the AUX RF input has become loose on my K3.

I cannot determine the best manner of accessing the inside of the rear 
panel so I can tighten the nut on the rear of the connector body.


It has been 4+ years since I have had this radio open and do not remember 
(nor can I find in the construction manual) the most efficient, least 
obtrusive method of gaining access to the rear of the connector.


All suggestions are appreciated.

Thanks, and Happy New Year to everyone.

de Milt, N5IA


-
No virus found in this message.
Checked by AVG - www.avg.com
Version: 2013.0.2805 / Virus Database: 2637/5975 - Release Date: 12/20/12
Internal Virus Database is out of date.

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-
No virus found in this message.
Checked by AVG - www.avg.com
Version: 2013.0.2805 / Virus Database: 2637/5975 - Release Date: 12/20/12
Internal Virus Database is out of date. 




-
No virus found in this message.
Checked by AVG - www.avg.com
Version: 2013.0.2805 / Virus Database: 2637/5975 - Release Date: 12/20/12
Internal Virus Database is out of date.

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Re: [Elecraft] N-gen question

2012-12-31 Thread Alan Bloom


Matt,

-174 dBm is the noise of a resistor at room temperature in a 1 Hz 
bandwidth.  In a 500 Hz bandwidth (which seems to be the standard for 
receiver measurements) you get 10 * log(500) = 27 dB more, or -147 dBm 
thermal noise.


So 35 dB excess noise is -147 + 35 = -112 dBm in a 500 Hz bandwidth. 
With a 2.7 kHz SSB filter, it should be -104.7 dBm.


The KX3 S meter may not be accurate for noise.  I expect the AGC tends 
to respond to peak signal level rather than RMS.  That would give a 
higher than expected S meter reading, which is what you observed.


The way to measure the N-gen output is to turn off the AGC, reduce the 
signal level so the audio output is not distorting (using attenuator or 
whatever) and measure the audio output with an RMS voltmeter.  Then 
connect a calibrated signal generator and adjust its output level for 
the same meter reading.  If you don't have a true RMS voltmeter you'll 
be off a dB or two, but it should be in the ballpark.


Alan N1AL


On 12/31/2012 2:33 PM, Matt Zilmer wrote:

Couple of questions on the N-gen:

1. The instruction sheet gives 35 dB of Excess Noise Output.  Is
this referenced to -174 dBm or some other?

I'm seeing S0 on a KX3 with the switch OFF, and S5-6 with the switch
on.  Seems usable.  I have S5 at -97 dBm, S6 at -91 dBm.  So the
reference level is around -132 to -126 dBm, if I read this spec
correctly.

2. Can someone reference a data sheet for the MAR-1 MMIC?  I'm going
to search for it, but thought someone might have it around.

The N-gen makes a nice 30 minute build, and is fun.  Parents are still
giving me kits even though I'm 55 y/o - because they want to watch me
build them - yes, right on the spot in their living room in Tucson.

I restrained meself until we got back to SoCal and I had my wrist
strap on.

Happy New Year to All.

73,
matt W6NIA
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Re: [Elecraft] N-gen question

2012-12-31 Thread Robert Friess

oops, Alan is right. Brain not engaged.

Bob

On Mon, Dec 31, 2012 at 3:41 PM, Alan Bloom n...@sonic.net wrote:

Matt,

-174 dBm is the noise of a resistor at room temperature in a 1 Hz
bandwidth. In a 500 Hz bandwidth (which seems to be the standard for
receiver measurements) you get 10 * log(500) = 27 dB more, or -147 dBm
thermal noise.

So 35 dB excess noise is -147 + 35 = -112 dBm in a 500 Hz bandwidth. With
a 2.7 kHz SSB filter, it should be -104.7 dBm.

The KX3 S meter may not be accurate for noise. I expect the AGC tends to
respond to peak signal level rather than RMS. That would give a higher
than expected S meter reading, which is what you observed.

The way to measure the N-gen output is to turn off the AGC, reduce the
signal level so the audio output is not distorting (using attenuator or
whatever) and measure the audio output with an RMS voltmeter. Then connect
a calibrated signal generator and adjust its output level for the same
meter reading. If you don't have a true RMS voltmeter you'll be off a dB
or two, but it should be in the ballpark.

Alan N1AL

On 12/31/2012 2:33 PM, Matt Zilmer wrote:

Couple of questions on the N-gen:

1. The instruction sheet gives 35 dB of Excess Noise Output. Is
this referenced to -174 dBm or some other?

I'm seeing S0 on a KX3 with the switch OFF, and S5-6 with the switch
on. Seems usable. I have S5 at -97 dBm, S6 at -91 dBm. So the
reference level is around -132 to -126 dBm, if I read this spec
correctly.

2. Can someone reference a data sheet for the MAR-1 MMIC? I'm going
to search for it, but thought someone might have it around.

The N-gen makes a nice 30 minute build, and is fun. Parents are still
giving me kits even though I'm 55 y/o - because they want to watch me
build them - yes, right on the spot in their living room in Tucson.

I restrained meself until we got back to SoCal and I had my wrist
strap on.

Happy New Year to All.

73,
matt W6NIA
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[Elecraft] Entire K3 Collection sale

2012-12-31 Thread Joel Cohen

I have the following equipment in near mint cond and very rarely used!

K3/100--ser # 05659 with the 2.8 filter, 100 watt amp and the KXV3A
interface.

KPA-500 amp--ser #368 with the KPAK3#AUX cable to interface the K3 with the
amp

P3--ser # 1729

Heil HM-12 mike with PL-2t boom and FS-3 footswitch plus handswitch and
cable to match K3

I will also include The Elecraft K3 book by KE7X , all the manuals plus
serial connecting cables to hook right to your computer.  Should be plug
and play. Just too much radio and no time to learn. Going back to the old
tube radios I am familiar with. Looking for Collins KWM2 with PS and 312B4.

$4500 plus shipping.
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Re: [Elecraft] Question

2012-12-31 Thread Rick Prather

Milt,

Don't forget that the manual is available online.

Rick
K6LE

On 12/31/2012, at 3:35 , Milt -- N5IA n...@zia-connection.com wrote:

 OK Don.
 
 That is what I had figured out but wanted to know if there was a simpler 
 method.  Yeah, the KRX3 has to come out to get at the regulator nuts.  They 
 are too tight between the KRX3 and the side panel to do otherwise.  That was 
 what had me stumped.  Didn't want to disturb them.  But, it is what it is. 
 Now to find the KRX3 manual.  Thanks, and Happy new Year.
 
 de Milt, N5IA

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[Elecraft] KX3 FS

2012-12-31 Thread John_N1JM

Like New KX3-K, #926 with roofing filter, 160/80M IMD upgrade, manuals and
cables, NO OTHER OPTIONS!
$990.
Non smoking environment ,USPS MO, PayPal with fees. CONUS only, US based
hams
with US call signs only. No trades!!
Please contact off list.

73, John N1JM



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View this message in context: 
http://elecraft.365791.n2.nabble.com/KX3-FS-tp7568017.html
Sent from the Elecraft mailing list archive at Nabble.com.
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Re: [Elecraft] [KAT500]schematic

2012-12-31 Thread Phil Debbie Salas

“...I have noticed that the port-to-port isolation between the 3 antenna ports 
is rather poor...”

I measured about 42dB isolation on 6M from port 1-2.  And this stays pretty 
constant down to 15M and then gets better fast.
I measured about 61dB isolation on 6M from port 1-3.  This gets better very 
fast, going to 75dB on 10M.

I use ports 1 and 3 for my two HF antennas (43ft vertical and 20/15/10M 
rotatable dipole), and put my 6M beam on port 2.

Phil – AD5X
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[Elecraft] Wanted: A few more testers for the KX3's new DVR feature

2012-12-31 Thread Wayne Burdick


Hi all,

A number of KX3 owners are busy testing the latest firmware release,  
which includes the DVR (digital voice recorder) feature. I believe  
we've gotten all the bugs out, but we could use a few more testers  
just to make sure, prior to doing the official beta release.


Please email me directly if you'd like to try it in the next two days.  
On a not-to-interfere basis with New Year's celebrations, of course :)


73,
Wayne
N6KR


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[Elecraft] [KX3} TenTec 418 QST Review

2012-12-31 Thread Phil Debbie Salas

If you are an ARRL member, you can access the February 2013 review of the TT418 
amplifier at http://www.arrl.org/qst-product-review-and-short-takes-columns

Phil – AD5X
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[Elecraft] kx3 memory mode

2012-12-31 Thread Reginald J Mackey SR

I got 6 meter repeater into memory finally. Now I can't get back out of memory 
mode.   How do I get back to regular bands. cant find out how to exit mem mode

thanks



Reggie k6xr
Ham Radio Since 1955
DXCC,RCC,WAZ



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[Elecraft] KBPF3 coverage

2012-12-31 Thread Merv Schweigert


Is anyone using the K3 for receive on 500KHZ?

I do not have the KBPF3 installed and of course the K3
is deaf on 500KHZ,  so before I order one, would like
to know if it works down that far in freq.  Or is it
compromise performance compared to a good 500KHZ
receiver?

Thanks  73 Merv K9FD/KH6
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[Elecraft] K3/100 into DX-CC antenna (HI-SWR)

2012-12-31 Thread Jay Krishna


Hi all,
 
Just spent the day putting up a multi-band DX-CC (fan dipole, 80-10M) in an 
inverted V configuration. Unfortunately, I could not get the center mast 
extended beyond 20 feet, with one end up ~9 feet from ground, the other, ~5 
feet from ground. I am seeing HI-SWR on all bands. Any suggestions on what 
might be the issue? I was able to get decent SWR with my old 20M monoband 
dipole, 30 feet up.
 
I have heard that the DX-CC is sensitive to height above ground, and am 
concerned that 20 feet might be too low. On the other hand, I was hoping it 
will at least tune well on 20 M at that height, if not all the bands...
 
Appreciate any ideas/suggestions. I don't have an ATU in my K3/100, and was 
hoping a multi-band fan-dipole like the DX-CC would work well without need for 
an ATU.
 
73,
 
Jay (KD6AMA)  
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Re: [Elecraft] K3/100 into DX-CC antenna (HI-SWR)

2012-12-31 Thread Jay Krishna


Sorry for the multiple emails; on more careful checking, I found that the SWR 
is nice and low on 40, 15 and 10. High (3+) on 20 and 80, so I must have some 
mismatch on just 20 and 80.
 
Jay
 



From: j_kris...@msn.com
To: elecraft@mailman.qth.net
Subject: K3/100 into DX-CC antenna (HI-SWR)
Date: Mon, 31 Dec 2012 18:34:20 -0800




Hi all,
 
Just spent the day putting up a multi-band DX-CC (fan dipole, 80-10M) in an 
inverted V configuration. Unfortunately, I could not get the center mast 
extended beyond 20 feet, with one end up ~9 feet from ground, the other, ~5 
feet from ground. I am seeing HI-SWR on all bands. Any suggestions on what 
might be the issue? I was able to get decent SWR with my old 20M monoband 
dipole, 30 feet up.
 
I have heard that the DX-CC is sensitive to height above ground, and am 
concerned that 20 feet might be too low. On the other hand, I was hoping it 
will at least tune well on 20 M at that height, if not all the bands...
 
Appreciate any ideas/suggestions. I don't have an ATU in my K3/100, and was 
hoping a multi-band fan-dipole like the DX-CC would work well without need for 
an ATU.
 
73,
 
Jay (KD6AMA)
  
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Re: [Elecraft] K3/100 into DX-CC antenna (HI-SWR)

2012-12-31 Thread Rose

Hi Jay !

I suggest that you need to use ... borrow? ... some sort of an antenna
analyzer such as an MFJ-259B and find the points on each band where
the antenna -is- resonant.  The resonant points on some bands will be
quite narrow (80M), but I'd think you can adjust the lengths of the dipoles
to make the antenna resonant on portions of the bands that are of interest.

I have one here that I use for a general purpose receiving antenna for my
K3's second receiver, so low SWR resonance isn't so important.

Bear in mind that like all fan dipoles, there is considerable interaction
between the elements and length adjustments on a given band will almost
certainly impact the other bands.  You're likely to chase your tail as
you try to make it satisfactory on all bands it's supposed to cover.

An antenna tuner will be almost mandatory.

73!

Ken - K0PP
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[Elecraft] kx3 macbook air programs

2012-12-31 Thread william martin

looking for suggestions for a program using my new kx3 and macbook air… would 
like to run psk, rtty , cw. Would also like a spectrum display. Love the radio. 
One super big suggestions to improve your kx3 experience.. Purchase Bose 
companion 2 speakers, man such a difference listening thru these speakers.. 
take care.. 72 
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Re: [Elecraft] kx3 macbook air programs

2012-12-31 Thread Bayard Coolidge

My (strong) recommendation would be 'fldigi', which runs natively under Mac OS 
X,
including/especially Mountain Lion. I also recommend RUMlog for day-to-day 
logging
and RUMped for contesting. The DSP code running in 'fldigi' is also used on Ham 
Radio
DeLuxe, which runs under Windows - it's very solid and has done an excellent 
job for me.

72,

Bayard R. Brandy Coolidge, N1HO
(K3 S/N 6852)



 From: william martin km...@bellsouth.net
To: elecraft@mailman.qth.net 
Sent: Monday, December 31, 2012 9:58 PM
Subject: [Elecraft] kx3 macbook air programs
 
looking for suggestions for a program using my new kx3 and macbook air… would 
like to run psk, rtty , cw. Would also like a spectrum display. Love the radio. 
One super big suggestions to improve your kx3 experience.. Purchase Bose 
companion 2 speakers, man such a difference listening thru these speakers.. 
take care.. 72 
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Re: [Elecraft] K3/100 into DX-CC antenna (HI-SWR)

2012-12-31 Thread Ron D'Eau Claire

Yes. A horizontal, or semi-horizontal, antenna is sensitive to height above
ground. You want to be about 1/2 wavelength up for optimum DX results. The
way the radiation interacts with the earth provides additional gain - up to
6 dB - at those heights. 

Your inverted V configuration provides some vertical polarization that has
a lower radiation angle, but it's not much. 

It will be effective for at least short skip down to about 1/4  wavelength
above ground where the main lobe is straight up and will scatter off of the
ionosphere. That's what many Hams today call a NVIS (Near Vertical Incidence
System) antenna. At lower heights the main lobe continues to point straight
up but with less and less strength as more of the RF is absorbed by the
earth. 

What you've run into with the SWR is exactly why tuners are so popular. It's
very difficult to get an antenna to show a low SWR, especially on several
bands, without one. 

73, Ron AC7AC

-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Jay Krishna
Sent: Monday, December 31, 2012 6:34 PM
To: elecraft@mailman.qth.net
Subject: [Elecraft] K3/100 into DX-CC antenna (HI-SWR)


Hi all,
 
Just spent the day putting up a multi-band DX-CC (fan dipole, 80-10M) in an
inverted V configuration. Unfortunately, I could not get the center mast
extended beyond 20 feet, with one end up ~9 feet from ground, the other, ~5
feet from ground. I am seeing HI-SWR on all bands. Any suggestions on what
might be the issue? I was able to get decent SWR with my old 20M monoband
dipole, 30 feet up.
 
I have heard that the DX-CC is sensitive to height above ground, and am
concerned that 20 feet might be too low. On the other hand, I was hoping it
will at least tune well on 20 M at that height, if not all the bands...
 
Appreciate any ideas/suggestions. I don't have an ATU in my K3/100, and was
hoping a multi-band fan-dipole like the DX-CC would work well without need
for an ATU.
 
73,
 
Jay (KD6AMA)  

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Re: [Elecraft] kx3 macbook air programs

2012-12-31 Thread Rick Prather

fldigi is a good suggestion and RUMlog is a great suggestion, especially it you 
are chasing DX and also interested in using the built in FSK-D and PSK-D 
capabilities of the KX-3.

For casual RTTY and PSK and dx'ing you may find that the combination of RUMlog 
and cocoaModem are hard to beat.  One audio connection from the radio to the 
Macbook and you're good to go using the waterfall from cocoaModem integrated 
with RUMlog for transmit.

Rick
K6LE

On 12/31/2012, at 7:22 , Bayard Coolidge n...@yahoo.com wrote:

 My (strong) recommendation would be 'fldigi', which runs natively under Mac 
 OS X,
 including/especially Mountain Lion. I also recommend RUMlog for day-to-day 
 logging
 and RUMped for contesting. The DSP code running in 'fldigi' is also used on 
 Ham Radio
 DeLuxe, which runs under Windows - it's very solid and has done an excellent 
 job for me.
 
 72,
 
 Bayard R. Brandy Coolidge, N1HO
 (K3 S/N 6852)
 
 
 
 From: william martin km...@bellsouth.net
 To: elecraft@mailman.qth.net 
 Sent: Monday, December 31, 2012 9:58 PM
 Subject: [Elecraft] kx3 macbook air programs
 
 looking for suggestions for a program using my new kx3 and macbook air… would 
 like to run psk, rtty , cw. Would also like a spectrum display. Love the 
 radio. One super big suggestions to improve your kx3 experience.. Purchase 
 Bose companion 2 speakers, man such a difference listening thru these 
 speakers.. take care.. 72 
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[Elecraft] Humidity and corrosion reducers

For those who operate their radios in high humidity or corrosive
atmospheres, we have used these before with great success around electronic
gear..  They can be stuck to the inside of the radio and changed once a
year.

 

http://www.geniefilters.com/_literature_137666/Humidisorb_Product_Sheet

 

 

 

Dr. William J. Schmidt - K9HZ / J68HZ/ 8P6HK/ ZF2HZ

 

Owner - Operator

Big Signal Ranch

Staunton, Illinois

 

email:   mailto:b...@wjschmidt.com b...@wjschmidt.com

 

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Re: [Elecraft] K3 won't shut off?

I found the problem... There is a jumper inside the preamp that needs to be
removed when used with the K3 and the accessory connector.  I thought I
removed it when it arrived, but I guess my age is starting to show...


Dr. William J. Schmidt - K9HZ / J68HZ/ 8P6HK/ ZF2HZ

Owner - Operator
Big Signal Ranch
Staunton, Illinois

email:  b...@wjschmidt.com


-Original Message-
From: dse...@dseven.org [mailto:dse...@dseven.org] On Behalf Of iain
macdonnell - N6ML
Sent: Monday, December 31, 2012 4:04 PM
To: b...@wjschmidt.com
Cc: Elecraft Mailing List
Subject: Re: [Elecraft] K3 won't shut off?

I would check inside the DE15 connector - maybe something is shorting pin 8
to ground inside there.

73,

~iain / N6ML


On Mon, Dec 31, 2012 at 1:49 PM, Dr. William J. Schmidt, II
b...@wjschmidt.com wrote:
 Yes, it works fine with the preamp completely removed...


 Dr. William J. Schmidt - K9HZ / J68HZ/ 8P6HK/ ZF2HZ

 Owner - Operator
 Big Signal Ranch
 Staunton, Illinois

 email:  b...@wjschmidt.com

 -Original Message-
 From: dse...@dseven.org [mailto:dse...@dseven.org] On Behalf Of iain 
 macdonnell - N6ML
 Sent: Monday, December 31, 2012 3:18 PM
 To: b...@wjschmidt.com
 Cc: Elecraft Mailing List
 Subject: Re: [Elecraft] K3 won't shut off?

 Does the K3 power off fully if you disconnect the ACC connector? It 
 sounds like something is pulling pin 8 down

 73,

 ~iain / N6ML


 On Mon, Dec 31, 2012 at 12:20 PM, Dr. William J. Schmidt, II 
 b...@wjschmidt.com wrote:
 So I connected my PR6 - 6 meter preamp to my K3 for the first time 
 last week and work some DX.  At the end of the day I go to shut the 
 radio off and the display goes blank (hear the relays disengage) but 
 all of the LEDs are still lit on the radio. and it will not turn back 
 on except to cycle the power on the power supply.  I discuss this 
 with a friend and he reminds me that there was a MOD for K3's to put 
 a diode on the KPA3 board for the 12V sense circuit, but after 
 looking at the MOD sheet on the Elecraft website, it says that this 
 MOD was incorporated into the radio as of 2009 (my radio less than a 
 year old).  I remove the fans to check for the 1N4148 on P68A of the 
 KPA3 and it's not there.  So two questions. Has anyone else 
 experienced this phenomena, and does anyone know. was that diode 
 actually incorporated
 into the radio on the board somewhere else and mine is just bad?





 Dr. William J. Schmidt - K9HZ / J68HZ/ 8P6HK/ ZF2HZ/ PJ4HZ



 Owner - Operator

 Big Signal Ranch

 Staunton, Illinois



 email:   mailto:b...@wjschmidt.com b...@wjschmidt.com



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Re: [Elecraft] K3 won't shut off?