Re: [Elecraft] K144XV REFERENCE OSCILLATOR PHASE LOCK OPTION

[Dave Erickson]

On 1/16/2024 5:07 PM, Robert Ward via Elecraft wrote:

I'm looking for the K144XV REFERENCE OSCILLATOR PHASE LOCK OPTION, part #
K144RFLK.

 If anyone has one spare to their needs, new or used, I'd be
interested in purchasing it from you.

Please reply off the list to my email  n...@yahoo.com

 Thanks, Bob


Contact Marilyn at Elecraft.

I just bought one a few months ago and they had a few left.

Good Luck


--
Dave Erickson
AB0R
73

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[Elecraft] K144XV REFERENCE OSCILLATOR PHASE LOCK OPTION

[Robert Ward via Elecraft]

I'm looking for the K144XV REFERENCE OSCILLATOR PHASE LOCK OPTION, part #
K144RFLK.

If anyone has one spare to their needs, new or used, I'd be
interested in purchasing it from you.

Please reply off the list to my email  n...@yahoo.com

Thanks, Bob

 

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Re: [Elecraft] K144XV REFERENCE OSCILLATOR Phase lock loop option

[Keith Trinity WE6R]

Bob;
You are looking for the K144XV REFERENCE LOCK BOARD, KIT (board, bolt, 
lockwasher and short TMP male-to-male coax).
The KBPF3 is the General Coverage board for working out of the Ham 
Bands, MARS CAP etc and does not affect the 2meter option.

Keith WE6R K3/K4 Tech
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[Elecraft] K144XV REFERENCE OSCILLATOR Phase lock loop option

[Robert Ward via Elecraft]

I'm looking for the KBPF3MDKT option that locked the K144XV to the master
oscillator. If anyone has one excess to their needs please contact me off
list.

Thanks. Bob

  n...@yahoo.com

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[Elecraft] K144XV Offset is not accurate. WAS: New K144XV module installed no power out..

[Randy Diddel]

Hi all,

I took it all apart again. The TMP cable on the IN side of the KXV3A board was 
just slightly loose. I should have checked it a 4th time-HI HI

Checked into the Beam-Spinners Weak signal net on 144.200 here in Denver. Net 
Control has a 9700 and my offset was off and had to tune to 144.199.5 to get 
everyone in clearly. So, I need to calibrate it-the manual says how to dial in 
using the factory spec but that number is obviously off. Is there a resource my 
Google-Fu has not be able to find?

Thanks for the help and 73, everyone.

K5RHD

/randy

> On Jun 19, 2020, at 12:05 AM, hdv  wrote:
> 
> Hi Randy
> 
> It looks like the unit works ok, but cannot transfer power somewhere.
> 
> Check the Ant3 coax for a short.
> Check with an ohm meter if the TMP output connector makes connection from 
> center BNC to center pin of TMP on pcb.
> 
> If that is ok, check the voltages on the PIN diodes in rx and tx and the 
> diodes themselves.
> 
> 73 Henk
> PA0C
> 
> 
> 
> Verzonden vanaf mijn Samsung Galaxy-smartphone.
> 
> 
>  Oorspronkelijk bericht 
> Van: Randy Diddel 
> Datum: 19-06-2020 06:54 (GMT+01:00)
> Aan: elecraft 
> Onderwerp: [Elecraft] New K144XV module installed no power out..
> 
> Hello,
> 
> I just received my new K244XV in the mail today. I followed the instructions 
> on how to install in my K3s (with a SN of 111xx). To a tee. I can adjust and 
> see drive on the RF meter and it looks like I should be driving it to full 
> power but through a W2 wattmeter into a dummy load, I have zero power out but 
> it does draw about 3.5A when I press and hold the tune button for a very 
> short time. I have triple checked all the TMP cables in and out of the KXV3A 
> board and into the K144XV. I am getting power to the unit and two quick 
> blinks of the LED of the XV when I power on the radio.
> 
> I have checked my menu settings and those are to spec per the instructions.
> 
> 
> 
> 
> It seems to be drawing current and everything I set right from what I can 
> tell, what am I missing?
> 
> TIA,
> 
> 73
> 
> K5RHD
> 
> /randy
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> Message delivered to h...@kpnplanet.nl 

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[Elecraft] K144XV

[hdv]

Hi all,I am looking for a K144XV transvertor.In case you want to sell it, 
please make me an off-line offer, including cheapest shipping to The 
Netherlands.73 HenkPA0CVerzonden vanaf mijn Samsung Galaxy-smartphone.
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[Elecraft] SOLD: FS: Elecraft K144XV internal transverter for K3

[Randy Lake]

Thanks all. Happy Holidays !

-- 
Randy Lake N1KWF
73 Gunn Rd.
Keene,NH
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[Elecraft] FS: Elecraft K144XV internal transverter for K3

[Randy Lake]

Changing up the stationrarely used and like-new and working perfectly.
$270 shipped.

-- 
Randy Lake N1KWF
73 Gunn Rd.
Keene,NH
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Re: [Elecraft] K144XV with microwave transverters

[Don Wilhelm]

Rus,

The key is that you cannot directly set the K3 IF to 144MHz, but you 
must set the CONFIG: XV1 ADR parameter correctly.


See the "Using External Transverters with the K144XV" section in the 
K144XV manual page 21.


You will have to switch the input to your external 144MHz IF 
transverters from the output of your band decoder.


73,
Don W3FPR



On 7/17/2019 8:55 AM, Rus Healy wrote:

Good morning. I have a K3 with the internal K144XV 2-meter transverter. I
want to use it not just for 2 meters, but also as an IF for 903, 1296,
2304, 3456, 5760, and 10 GHz. I have built a band decoder and set the XVn
displays for each band accordingly.

I see that I can't set the IF for the XVn to anything but 28 or 50 MHz, so
that implies that 144 MHz is not supported along with the higher bands and
band decoder configuration. I verified with Elecraft support that this
isn't supported--they steered me here (after a 10-day delay and three
separate emails to get any answer at all, but I digress).

How are others handling this requirement? The automation is important to
me, as I am using it not just to steer the 144-MHz IF, but also to set the
correct LO frequency and steer the output of the Down East Microwave DIGILO
to each transverter based on the band information from the radio.


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[Elecraft] K144XV with microwave transverters

[Rus Healy]

Good morning. I have a K3 with the internal K144XV 2-meter transverter. I
want to use it not just for 2 meters, but also as an IF for 903, 1296,
2304, 3456, 5760, and 10 GHz. I have built a band decoder and set the XVn
displays for each band accordingly.

I see that I can't set the IF for the XVn to anything but 28 or 50 MHz, so
that implies that 144 MHz is not supported along with the higher bands and
band decoder configuration. I verified with Elecraft support that this
isn't supported--they steered me here (after a 10-day delay and three
separate emails to get any answer at all, but I digress).

How are others handling this requirement? The automation is important to
me, as I am using it not just to steer the 144-MHz IF, but also to set the
correct LO frequency and steer the output of the Down East Microwave DIGILO
to each transverter based on the band information from the radio.

Thanks in advance.

--73, Rus, K2UA
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Re: [Elecraft] K144XV issues in K3S - audio distortion and fading signals over time

[hdv]

So the problem is clearly in the transvertor.Given the fact that both rx and tx 
follow roughly the same pattern a common cause seems to be logical.That could 
be voltage or oscillator.Check if the voltage remains constant on both rx and 
tx circuits. Also check the oscillator signal and level with a scoop or 
spectrum analyser.Most probably it is heat related. Given the fact that audio 
distortion starts rather quickly the oscillator would be my prime suspect.73 
HenkPA0CVerzonden vanaf mijn Samsung Galaxy-smartphone.
 Oorspronkelijk bericht Van: Hank  Datum: 
24-05-19  19:28  (GMT+01:00) Aan: hdv  Cc: Elecraft 
Reflector  Onderwerp: Re[2]: [Elecraft] K144XV issues 
in K3S - audio distortion and fading signals over time 
OK...here are some test results:

 - Neither problem occurs on 10m FM

 - The output power does also diminish on 2 meters - roughly follows the 
reception "weakening".  The S-Meter went from 60 over S9 to S8 over the period 
of 45 minutes and the output power (measured by a Bird WM) fell from 12 watts 
to below 5.
 - The audio distorts almost immediately
 - no testing on 2 meter AM or SSB yet

I did notice that the "weakening" occurs faster with lots of TX use.  So maybe 
it is heat related??  The problem is that it doesn't require much TX time at 
all - very little.  I seem to recall running the module at only a few watts out 
(like 2), and I could rag chew on FM for 45 minutes and the output power was 
never attenuated by protection circuits.  Running the module now at -9.0db pwr 
setting causes the effect to happen within just a few minutes.  


If I turn the K3S off and let it sit for 30 minutes, and try the transverter 
again, it works fine.  BUT after the rig sits on for 20 - 30 mins (NO TX), the 
received FM signal starts to "weaken".  Distortion starts almost immediately.

The K144XV is on the latest code release and I double-checked the 144 and 146 
offsets as printed on the module to be sure they matched the menu settings - 
all good.

What gives??  I know the transverter has got to be more robust than that!!!

Hank
K4HYJ
K3S, P3, KX3

 



- Original Message -
From: hdv (h...@kpnplanet.nl)Date: 05/23/19 13:47To: Hank (h...@optilink.us)Cc: 
Elecraft Reflector (elecraft@mailman.qth.net)Subject: Re: [Elecraft] K144XV 
issues in K3S


Just some questions to understand the problem better.
Is the audio issue only happening in FM or also in other modes?
Try FM on HF with someone close and see if if it is really caused by the K144

Does the K144 output also drops or is that stable.

73 Henk
PA0C




Verzonden vanaf mijn Samsung Galaxy-smartphone.


 Oorspronkelijk bericht 
Van: Nr4c 
Datum: 23-05-19 19:32 (GMT+01:00)
Aan: Hank 
Cc: Hank Blackwood , Elecraft Reflector 

Onderwerp: Re: [Elecraft] K144XV issues in K3S

Frequency drift comes to mind.The HF ATU probably won't do anything for VHF.Let 
the radio warm up for half an hour before doing anything with VHF.Remember 1PPM 
at VHF is 144 Hertz.You need the high def oscillator and maybe the Ref In.Sent 
from my iPhone...nr4c. bill> On May 23, 2019, at 1:05 PM, Hank 
 wrote:>>> Hey Folks...  >> I have noticed 2 unusual issues 
with my recently installed K144XV.  I bought it used from a list member and 
installed it a few months ago.  It seems to work ok but after some extended use 
(which recently begun) it is does 2 things: after it has been in use (even just 
monitoring) for local FM repeater work, the S-Meter on the K3S starts to read 
lower and lower (by as much as 3 S-Units) for the same repeater signal; and 2 - 
the audio becomes a little distorted on stronger signals (the ATT makes no 
difference in the audio distortion).>> The audio happens almost immediately 
after turning up the rig, but the signal "weakening" takes 10 to 15 minutes of 
the transverter being active (active band on K3S).  It will occur faster it is 
being used (transmitting).  I have it set to very low power (display reads 
-6db), and it will still show "weakening" on the S-Meter during reception after 
using it.  I noticed it fist doing some longer packet transmissions, but it 
will also happen after a period of time of just listening.>> The audio 
distortion is not as noticeable on signals below S-9, but listening in 
headphones will reveal the distortion is still there.>>> The K3S currently has 
the standard TXCO installed and no reference lock on the K144XV.  The 13khz 
filter is installed in the main receiver.  I have no external reference board 
installed in the K3S.  I have ordered the higher stability TXCO for the K3S and 
the K144XV reference lock, but have not received them yet from Elecraft.>>> The 
audio on HF is OK and the S-Meter does not seem to "weaken" in a similar 
fashion when monitoring strong net signals over time.>>> Any ideas?>> Hank> 
K4HYJ> K3S, P3, KX3>>>&g

Re: [Elecraft] K144XV issues in K3S - audio distortion and fading signals over time

[Grant Youngman]

Have you double checked all of the connections in and out of the 2M module?  
I’ve found it’s important to remove the transverter’s top cover to do this — 
because it is possible when pushing cables into the female connectors blind, 
even being careful, to actually bend back the business end of the sockets.  I 
don’t remember off hand which two it is, but I’ve had enough problems with them 
that I now support them from the rear with a screwdriver blade when seating 
cables to ensure a solid connection.

Otherwise, it sounds offhand like there’s something bad on the transverter 
board … 

Grant NQ5T
K3 #2091 KX3 #8342

> On May 24, 2019, at 1:28 PM, Hank  wrote:
> 
> 
> OK...here are some test results:
> 
>  - Neither problem occurs on 10m FM 
> 
>  - The output power does also diminish on 2 meters - roughly follows the 
> reception "weakening".  The S-Meter went from 60 over S9 to S8 over the 
> period of 45 minutes and the output power (measured by a Bird WM) fell from 
> 12 watts to below 5.
>  - The audio distorts almost immediately
>  - no testing on 2 meter AM or SSB yet
> 

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Re: [Elecraft] K144XV issues in K3S - audio distortion and fading signals over time

[Hank]

OK...here are some test results:

 - Neither problem occurs on 10m FM 

 - The output power does also diminish on 2 meters - roughly follows the 
reception "weakening".  The S-Meter went from 60 over S9 to S8 over the period 
of 45 minutes and the output power (measured by a Bird WM) fell from 12 watts 
to below 5.
 - The audio distorts almost immediately
 - no testing on 2 meter AM or SSB yet

I did notice that the "weakening" occurs faster with lots of TX use.  So maybe 
it is heat related??  The problem is that it doesn't require much TX time at 
all - very little.  I seem to recall running the module at only a few watts out 
(like 2), and I could rag chew on FM for 45 minutes and the output power was 
never attenuated by protection circuits.  Running the module now at -9.0db pwr 
setting causes the effect to happen within just a few minutes.   


If I turn the K3S off and let it sit for 30 minutes, and try the transverter 
again, it works fine.  BUT after the rig sits on for 20 - 30 mins (NO TX), the 
received FM signal starts to "weaken".  Distortion starts almost immediately.

The K144XV is on the latest code release and I double-checked the 144 and 146 
offsets as printed on the module to be sure they matched the menu settings - 
all good.

What gives??  I know the transverter has got to be more robust than that!!!

Hank
K4HYJ
K3S, P3, KX3

 
- Original Message -
From: hdv (h...@kpnplanet.nl)
Date: 05/23/19 13:47
To: Hank (h...@optilink.us)
Cc: Elecraft Reflector (elecraft@mailman.qth.net)
Subject: Re: [Elecraft] K144XV issues in K3S

Just some questions to understand the problem better.
Is the audio issue only happening in FM or also in other modes?
Try FM on HF with someone close and see if if it is really caused by the K144

Does the K144 output also drops or is that stable.

73 Henk
PA0C



Verzonden vanaf mijn Samsung Galaxy-smartphone.


 Oorspronkelijk bericht 
Van: Nr4c 
Datum: 23-05-19 19:32 (GMT+01:00)
Aan: Hank 
Cc: Hank Blackwood , Elecraft Reflector 

Onderwerp: Re: [Elecraft] K144XV issues in K3S

Frequency drift comes to mind.

The HF ATU probably won't do anything for VHF.

Let the radio warm up for half an hour before doing anything with VHF.

Remember 1PPM at VHF is 144 Hertz.

You need the high def oscillator and maybe the Ref In.

Sent from my iPhone
...nr4c. bill


> On May 23, 2019, at 1:05 PM, Hank  wrote:
>
>
> Hey Folks...  
>
> I have noticed 2 unusual issues with my recently installed K144XV.  I bought 
> it used from a list member and installed it a few months ago.  It seems to 
> work ok but after some extended use (which recently begun) it is does 2 
> things: after it has been in use (even just monitoring) for local FM repeater 
> work, the S-Meter on the K3S starts to read lower and lower (by as much as 3 
> S-Units) for the same repeater signal; and 2 - the audio becomes a little 
> distorted on stronger signals (the ATT makes no difference in the audio 
> distortion).
>
> The audio happens almost immediately after turning up the rig, but the signal 
> "weakening" takes 10 to 15 minutes of the transverter being active (active 
> band on K3S).  It will occur faster it is being used (transmitting).  I have 
> it set to very low power (display reads -6db), and it will still show 
> "weakening" on the S-Meter during reception after using it.  I noticed it 
> fist doing some longer packet transmissions, but it will also happen after a 
> period of time of just listening.
>
> The audio distortion is not as noticeable on signals below S-9, but listening 
> in headphones will reveal the distortion is still there.
>
>
> The K3S currently has the standard TXCO installed and no reference lock on 
> the K144XV.  The 13khz filter is installed in the main receiver.  I have no 
> external reference board installed in the K3S.  I have ordered the higher 
> stability TXCO for the K3S and the K144XV reference lock, but have not 
> received them yet from Elecraft. 
>
>
> The audio on HF is OK and the S-Meter does not seem to "weaken" in a similar 
> fashion when monitoring strong net signals over time. 
>
>
> Any ideas?
>
> Hank
> K4HYJ
> K3S, P3, KX3
>
>
> 
>
> 
>
>
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This list hosted 

Re: [Elecraft] K144XV issues in K3S

[Nr4c]

Oops. My bad!

Sent from my iPhone
...nr4c. bill


> On May 23, 2019, at 1:36 PM, Hank  wrote:
> 
> 
> Not the ATU, the ATT (attenuation function).
> 
>  
> - Original Message -
> From: Nr4c (n...@widomaker.com)
> Date: 05/23/19 13:34
> To: Hank (h...@optilink.us)
> Cc: Hank Blackwood (k4...@arrl.net), Elecraft Reflector 
> (elecraft@mailman.qth.net)
> Subject: Re: [Elecraft] K144XV issues in K3S
> 
> Frequency drift comes to mind.
> 
> The HF ATU probably won’t do anything for VHF.
> 
> Let the radio warm up for half an hour before doing anything with VHF.
> 
> Remember 1PPM at VHF is 144 Hertz.
> 
> You need the high def oscillator and maybe the Ref In.
> 
> Sent from my iPhone
> ...nr4c. bill
> 
> 
>> On May 23, 2019, at 1:05 PM, Hank  wrote:
>> 
>> 
>> Hey Folks...  
>> 
>> I have noticed 2 unusual issues with my recently installed K144XV.  I bought 
>> it used from a list member and installed it a few months ago.  It seems to 
>> work ok but after some extended use (which recently begun) it is does 2 
>> things: after it has been in use (even just monitoring) for local FM 
>> repeater work, the S-Meter on the K3S starts to read lower and lower (by as 
>> much as 3 S-Units) for the same repeater signal; and 2 - the audio becomes a 
>> little distorted on stronger signals (the ATT makes no difference in the 
>> audio distortion).
>> 
>> The audio happens almost immediately after turning up the rig, but the 
>> signal "weakening" takes 10 to 15 minutes of the transverter being active 
>> (active band on K3S).  It will occur faster it is being used (transmitting). 
>>  I have it set to very low power (display reads -6db), and it will still 
>> show "weakening" on the S-Meter during reception after using it.  I noticed 
>> it fist doing some longer packet transmissions, but it will also happen 
>> after a period of time of just listening.
>> 
>> The audio distortion is not as noticeable on signals below S-9, but 
>> listening in headphones will reveal the distortion is still there.
>> 
>> 
>> The K3S currently has the standard TXCO installed and no reference lock on 
>> the K144XV.  The 13khz filter is installed in the main receiver.  I have no 
>> external reference board installed in the K3S.  I have ordered the higher 
>> stability TXCO for the K3S and the K144XV reference lock, but have not 
>> received them yet from Elecraft.  
>> 
>> 
>> The audio on HF is OK and the S-Meter does not seem to "weaken" in a similar 
>> fashion when monitoring strong net signals over time.  
>> 
>> 
>> Any ideas?
>> 
>> Hank
>> K4HYJ
>> K3S, P3, KX3
>> 
>> 
>>  
>> 
>>  
>> 
>> 
>> __
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> 

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Re: [Elecraft] K144XV issues in K3S

[hdv]

Just some questions to understand the problem better.Is the audio issue only 
happening in FM or also in other modes?Try FM on HF with someone close and see 
if if it is really caused by the K144Does the K144 output also drops or is that 
stable.73 HenkPA0CVerzonden vanaf mijn Samsung Galaxy-smartphone.
 Oorspronkelijk bericht Van: Nr4c  Datum: 
23-05-19  19:32  (GMT+01:00) Aan: Hank  Cc: Hank Blackwood 
, Elecraft Reflector  Onderwerp: Re: 
[Elecraft] K144XV issues in K3S Frequency drift comes to mind. The HF ATU 
probably won’t do anything for VHF. Let the radio warm up for half an hour 
before doing anything with VHF.Remember 1PPM at VHF is 144 Hertz. You need the 
high def oscillator and maybe the Ref In. Sent from my iPhone...nr4c. bill> On 
May 23, 2019, at 1:05 PM, Hank  wrote:> > > Hey Folks...   > 
> I have noticed 2 unusual issues with my recently installed K144XV.  I bought 
it used from a list member and installed it a few months ago.  It seems to work 
ok but after some extended use (which recently begun) it is does 2 things: 
after it has been in use (even just monitoring) for local FM repeater work, the 
S-Meter on the K3S starts to read lower and lower (by as much as 3 S-Units) for 
the same repeater signal; and 2 - the audio becomes a little distorted on 
stronger signals (the ATT makes no difference in the audio distortion).> > The 
audio happens almost immediately after turning up the rig, but the signal 
"weakening" takes 10 to 15 minutes of the transverter being active (active band 
on K3S).  It will occur faster it is being used (transmitting).  I have it set 
to very low power (display reads -6db), and it will still show "weakening" on 
the S-Meter during reception after using it.  I noticed it fist doing some 
longer packet transmissions, but it will also happen after a period of time of 
just listening.> > The audio distortion is not as noticeable on signals below 
S-9, but listening in headphones will reveal the distortion is still there.> > 
> The K3S currently has the standard TXCO installed and no reference lock on 
the K144XV.  The 13khz filter is installed in the main receiver.  I have no 
external reference board installed in the K3S.  I have ordered the higher 
stability TXCO for the K3S and the K144XV reference lock, but have not received 
them yet from Elecraft.  > > > The audio on HF is OK and the S-Meter does not 
seem to "weaken" in a similar fashion when monitoring strong net signals over 
time.  > > > Any ideas?> > Hank> K4HYJ> K3S, P3, KX3> > >  > >  > > > 
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Re: [Elecraft] K144XV issues in K3S

[Hank]

Not the ATU, the ATT (attenuation function).

 
- Original Message -
From: Nr4c (n...@widomaker.com)
Date: 05/23/19 13:34
To: Hank (h...@optilink.us)
Cc: Hank Blackwood (k4...@arrl.net), Elecraft Reflector 
(elecraft@mailman.qth.net)
Subject: Re: [Elecraft] K144XV issues in K3S

Frequency drift comes to mind.

The HF ATU probably won’t do anything for VHF.

Let the radio warm up for half an hour before doing anything with VHF.

Remember 1PPM at VHF is 144 Hertz.

You need the high def oscillator and maybe the Ref In.

Sent from my iPhone
...nr4c. bill


> On May 23, 2019, at 1:05 PM, Hank  wrote:
>
>
> Hey Folks...  
>
> I have noticed 2 unusual issues with my recently installed K144XV.  I bought 
> it used from a list member and installed it a few months ago.  It seems to 
> work ok but after some extended use (which recently begun) it is does 2 
> things: after it has been in use (even just monitoring) for local FM repeater 
> work, the S-Meter on the K3S starts to read lower and lower (by as much as 3 
> S-Units) for the same repeater signal; and 2 - the audio becomes a little 
> distorted on stronger signals (the ATT makes no difference in the audio 
> distortion).
>
> The audio happens almost immediately after turning up the rig, but the signal 
> "weakening" takes 10 to 15 minutes of the transverter being active (active 
> band on K3S).  It will occur faster it is being used (transmitting).  I have 
> it set to very low power (display reads -6db), and it will still show 
> "weakening" on the S-Meter during reception after using it.  I noticed it 
> fist doing some longer packet transmissions, but it will also happen after a 
> period of time of just listening.
>
> The audio distortion is not as noticeable on signals below S-9, but listening 
> in headphones will reveal the distortion is still there.
>
>
> The K3S currently has the standard TXCO installed and no reference lock on 
> the K144XV.  The 13khz filter is installed in the main receiver.  I have no 
> external reference board installed in the K3S.  I have ordered the higher 
> stability TXCO for the K3S and the K144XV reference lock, but have not 
> received them yet from Elecraft.  
>
>
> The audio on HF is OK and the S-Meter does not seem to "weaken" in a similar 
> fashion when monitoring strong net signals over time.  
>
>
> Any ideas?
>
> Hank
> K4HYJ
> K3S, P3, KX3
>
>
>  
>
>  
>
>
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Re: [Elecraft] K144XV issues in K3S

[Nr4c]

Frequency drift comes to mind. 

The HF ATU probably won’t do anything for VHF. 

Let the radio warm up for half an hour before doing anything with VHF.

Remember 1PPM at VHF is 144 Hertz. 

You need the high def oscillator and maybe the Ref In. 

Sent from my iPhone
...nr4c. bill


> On May 23, 2019, at 1:05 PM, Hank  wrote:
> 
> 
> Hey Folks...   
> 
> I have noticed 2 unusual issues with my recently installed K144XV.  I bought 
> it used from a list member and installed it a few months ago.  It seems to 
> work ok but after some extended use (which recently begun) it is does 2 
> things: after it has been in use (even just monitoring) for local FM repeater 
> work, the S-Meter on the K3S starts to read lower and lower (by as much as 3 
> S-Units) for the same repeater signal; and 2 - the audio becomes a little 
> distorted on stronger signals (the ATT makes no difference in the audio 
> distortion).
> 
> The audio happens almost immediately after turning up the rig, but the signal 
> "weakening" takes 10 to 15 minutes of the transverter being active (active 
> band on K3S).  It will occur faster it is being used (transmitting).  I have 
> it set to very low power (display reads -6db), and it will still show 
> "weakening" on the S-Meter during reception after using it.  I noticed it 
> fist doing some longer packet transmissions, but it will also happen after a 
> period of time of just listening.
> 
> The audio distortion is not as noticeable on signals below S-9, but listening 
> in headphones will reveal the distortion is still there.
> 
> 
> The K3S currently has the standard TXCO installed and no reference lock on 
> the K144XV.  The 13khz filter is installed in the main receiver.  I have no 
> external reference board installed in the K3S.  I have ordered the higher 
> stability TXCO for the K3S and the K144XV reference lock, but have not 
> received them yet from Elecraft.  
> 
> 
> The audio on HF is OK and the S-Meter does not seem to "weaken" in a similar 
> fashion when monitoring strong net signals over time.  
> 
> 
> Any ideas?
> 
> Hank
> K4HYJ
> K3S, P3, KX3
> 
> 
>  
> 
>  
> 
> 
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[Elecraft] K144XV issues in K3S

[Hank]

Hey Folks...   

I have noticed 2 unusual issues with my recently installed K144XV.  I bought it 
used from a list member and installed it a few months ago.  It seems to work ok 
but after some extended use (which recently begun) it is does 2 things: after 
it has been in use (even just monitoring) for local FM repeater work, the 
S-Meter on the K3S starts to read lower and lower (by as much as 3 S-Units) for 
the same repeater signal; and 2 - the audio becomes a little distorted on 
stronger signals (the ATT makes no difference in the audio distortion).

The audio happens almost immediately after turning up the rig, but the signal 
"weakening" takes 10 to 15 minutes of the transverter being active (active band 
on K3S).  It will occur faster it is being used (transmitting).  I have it set 
to very low power (display reads -6db), and it will still show "weakening" on 
the S-Meter during reception after using it.  I noticed it fist doing some 
longer packet transmissions, but it will also happen after a period of time of 
just listening.

The audio distortion is not as noticeable on signals below S-9, but listening 
in headphones will reveal the distortion is still there.


The K3S currently has the standard TXCO installed and no reference lock on the 
K144XV.  The 13khz filter is installed in the main receiver.  I have no 
external reference board installed in the K3S.  I have ordered the higher 
stability TXCO for the K3S and the K144XV reference lock, but have not received 
them yet from Elecraft.  


The audio on HF is OK and the S-Meter does not seem to "weaken" in a similar 
fashion when monitoring strong net signals over time.  


Any ideas?

Hank
K4HYJ
K3S, P3, KX3


 

 


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[Elecraft] K144XV on digital modes - disappearing power SOLVED

[Kjeld Holm]

Dear Elecrafters,

I do appreciate the help from Elecraft support, senior supporter Gary and Wayne 
himself. After quite a few mails back and forth Wayne did the mail with 

"Have you tried setting the K3’s transmit ALC off? If there really is per-mode 
behavior, this should help.

First do a TUNE to establish ALC control level, then set CONFIG:TX ALC to OFF. 
Exit the menu. Now power control is open-loop; you can still adjust the PWR 
control, but it is only adjusting drive, without using ALC."

Vy 73 de OZ1CCM, Kjeld

-Original Message-
From: Kjeld Holm [mailto:k...@kh-translation.dk] 
Sent: 25. februar 2018 17:14
To: 'elecraft@mailman.qth.net'
Cc: 'Wayne Burdick'
Subject: K144XV on digital modes - disappearing power

Dear Elecrafters, 
For a year or so I have had an internal K144XV transverter for 144 MHz in my 
K3. I have not been using it very much – just a few FM QSOs. I have not seen 
any problems. 
Now I have just started using K144XV on digital modes – especially FT8 (42% TX 
and 58% RX). 
I started out selecting 10W output. After 4 minutes the output suddenly felt to 
a few mill watt. 
Starting out with 5W or even 2W produced exactly the same result. 
But without regard to the starting point I could get normal output again just 
by changing the output a little bit. It did not matter whether I increased or 
decreased my power a bit.  
I did not hear any fans starting up and I could not feel any heating at any 
sides of the K3. 
Can anyone explain what is going on – what I am doing wrong – what I can do to 
keep the output stable? 
Vy 73 de OZ1CCM, Kjeld

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[Elecraft] K144XV on digital modes - disappearing power

[Kjeld Holm]

Dear Elecrafters, 
For a year or so I have had an internal K144XV transverter for 144 MHz in my 
K3. I have not been using it very much – just a few FM QSOs. I have not seen 
any problems. 
Now I have just started using K144XV on digital modes – especially FT8 (42% TX 
and 58% RX). 
I started out selecting 10W output. After 4 minutes the output suddenly felt to 
a few mill watt. 
Starting out with 5W or even 2W produced exactly the same result. 
But without regard to the starting point I could get normal output again just 
by changing the output a little bit. It did not matter whether I increased or 
decreased my power a bit.  
I did not hear any fans starting up and I could not feel any heating at any 
sides of the K3. 
Can anyone explain what is going on – what I am doing wrong – what I can do to 
keep the output stable? 
Vy 73 de OZ1CCM, Kjeld

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Re: [Elecraft] K144XV on digital modes - disappearing power

[Gary Hembree]

This problem has nothing to do with setting the proper ALC level.  Both KB7Q 
and I have observed this behavior after carefully setting up our K3s for WSJT-X 
operation with the K144XV.  KB7Q found if he ran JT65 in USB mode the power 
setting behavior of the K144XV was normal but if he ran in DATA A mode it was 
anomalous.  I have had the exact same problem while running MSK144 in DATA A 
mode.  Both of us observed the same “cure” as Kjeld: slight movement of the 
power control restored normal power output.  Neither of us had this problem 
while running SSB or CW.  The two K3 transceivers we made these observations on 
were SN 7xx and SN 4611, which are widely spaced in date of production and 
board revision levels.  When KB7Q upgraded to a K3S, using the same K144XV 
module, the anomalous power setting behavior in DATA A mode did not occur.

I have a very strong suspicion that this problem is related to the new firmware 
that is shared by both the K3 and K3S.  It works correctly in the latter case 
but not the former.  Unfortunately I cannot revert to a pre-K3S firmware 
version.

73
Gary, N7IR




Kjeld,

Are you driving the audio up to 4 bars on the ALC meter with the 5th bar 
flashing?  This is the "zero ALC" point for the K3, KX3 and KX2 
transceivers.

Without sufficient audio  The K3 will "power hunt", and that may be what 
is happening.

Refer to the article on my website www.w3fpr.com.  Scroll the left 
column down to the lat article and click on that link.

73,
Don W3FPR

On 2/25/2018 5:28 AM, Kjeld Holm wrote:
Dear Elecrafters,
For a year or so I have had an internal K144XV transverter for 144 MHz in my
K3. I have not been using it very much - just a few FM QSOs. I have not seen
any problems.
Now I have just started using K144XV on digital modes - especially FT8 (42%
TX and 58% RX).
I started out selecting 10W output. After 4 minutes the output suddenly felt
to a few mill watt.
Starting out with 5W or even 2W produced exactly the same result. 
But without regard to the starting point I could get normal output again
just by changing the output a little bit. It did not matter whether I
increased or decreased my power a bit.  
I did not hear any fans starting up and I could not feel any heating at any
sides of the K3. 
Can anyone explain what is going on - what I am doing wrong - what I can do
to keep the output stable? 
Vy 73 de OZ1CCM, Kjeld
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Re: [Elecraft] K144XV on digital modes - disappearing power

[Don Wilhelm]

Kjeld,

Are you driving the audio up to 4 bars on the ALC meter with the 5th bar 
flashing?  This is the "zero ALC" point for the K3, KX3 and KX2 
transceivers.


Without sufficient audio  The K3 will "power hunt", and that may be what 
is happening.


Refer to the article on my website www.w3fpr.com.  Scroll the left 
column down to the lat article and click on that link.


73,
Don W3FPR

On 2/25/2018 5:28 AM, Kjeld Holm wrote:

Dear Elecrafters,
For a year or so I have had an internal K144XV transverter for 144 MHz in my
K3. I have not been using it very much - just a few FM QSOs. I have not seen
any problems.
Now I have just started using K144XV on digital modes - especially FT8 (42%
TX and 58% RX).
I started out selecting 10W output. After 4 minutes the output suddenly felt
to a few mill watt.

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[Elecraft] K144XV on digital modes - disappearing power

[Kjeld Holm]

Dear Elecrafters, 
For a year or so I have had an internal K144XV transverter for 144 MHz in my
K3. I have not been using it very much - just a few FM QSOs. I have not seen
any problems. 
Now I have just started using K144XV on digital modes - especially FT8 (42%
TX and 58% RX). 
I started out selecting 10W output. After 4 minutes the output suddenly felt
to a few mill watt. 
Starting out with 5W or even 2W produced exactly the same result. 
But without regard to the starting point I could get normal output again
just by changing the output a little bit. It did not matter whether I
increased or decreased my power a bit.  
I did not hear any fans starting up and I could not feel any heating at any
sides of the K3. 
Can anyone explain what is going on - what I am doing wrong - what I can do
to keep the output stable? 
Vy 73 de OZ1CCM, Kjeld


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[Elecraft] WTB: Elecraft K144XV Internal 2M Module

[Chad Wasinger]

Hi Group,


Looking for a K144XV Internal 2M module for my K3. Maybe you have one that you 
no longer use?


Please let me offline if you have one you might want to sell.


Thanks!

Chad

N0YK


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[Elecraft] K144XV Implementation and Trades/WTB

[Russ]

All:

I picked up an K144XV, a KXV3A and a K3EXREF at a hamfest last weekend from the 
estate of an SK.

It was boxed as if to say that the hardware is all I need to implement a GPS 
synchronized transverter in a K3 - minus the GPS Rx. I'm not sure that is the 
case.   (I have a 10 MHz Zyfer GPS synced reference oscillator) The K3EXREF PLL 
disciplines the K3's 49.38 MHz timebase. I am reasonably certain that I need  a 
K144REFLK board to tie the K144XV to the 49 MHz timebase. I assume that the 
firmware has been written to tie all this to the K3EXREF (It hadn't been 
shortly after the K3EXREF came out).

Now the needy/horse trading part :)

Anybody want to trade a K144REFLK board for my KXV3A (I already have one in the 
K3).
I also need a KFL3B-FM 13 kHz crystal filter

Thanks, Russ KD4JO

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[Elecraft] K144XV Question

[Gary Ferdinand]

I have managed to destroy all of the TMP jacks on the K144XV inside the K3.  
The jacks’ center conductor is totally smashed.  Questions:

1.  Can I return the K3 settings back to a “no K144XV” state to disable totally 
the XV?  (That is, all jacks/TMP plugs not energized)?

2.  Has anyone removed damaged TMP jacks and replaced them?  Can this be done 
by the owner, or should the entire XV be shipped to Elecraft?

I am not a fan of TMPs!   Thanks in advance.

Gary W2CS



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Re: [Elecraft] K144XV & KRX3A, install which first in K3s?

[Don Wilhelm]

Carl,

Time to quiz Elecraft support on that.  I have very little experience 
with the internal transverters.


73,
Don W3FPR

On 9/23/2015 4:55 PM, Carl Jón Denbow wrote:
Well, Don, I finally got both modules installed.  Boy do I hate 
working with TMP connectors in close quarters, especially the flimsily 
mounted females on boards such as the K3RXA.  But that's another 
story.  Right now, I seem to have a problem with the K144XV.  I've 
installed it according to directions and have followed the setup 
directions on p. 20, but I can neither receive not transmit anything 
on 2M.  I can tune to a 2M frequency, but I can't even execute the SQL 
function on FM.  Any suggestions as where to start looking for the 
problem?  Tnxs & 73, Carl, N8VZ




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[Elecraft] Elecraft K144XV sold. Still have XV50 and K2/100 FS

[W0WFH Bill via Elecraft]

I nice XV50 transverter $305.00I will pay shipping to lower 48.
Reason for selling I am also selling K2/100 as I have a very nice K3 with all 
bands and my K2/100 system just setting collecting dust.  It is a nice system 
but I have moved on the the K3 Line and to sell this equipment to pay for some 
of my K3 options.
Loaded Elecraft K2/100 with KAT 100 Auto Antenna Tuner Options: 100 watt 
amplifier and RS 232 IO KSB2SSB ADAPTER K60XV-MAND TRANSVERTER ADAPTER 
KNB2NOISE BLANKER KAF2AUDIO FILTER AND REAL TIME CLOCK K160RX160 METER MODULE 
WITH RX ANTENNA  SWITCH. MH2HAND MIC TOP COVER WITH BATTERY FOR QRP (CONDITION 
OF BATTERY UNKNOWN) ALL MANUALS
 $1295.00PLUS SHIPPINGBill Hudson, W0WFHLinn, mo.w0...@yahoo.com
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Re: [Elecraft] K144XV & KRX3A, install which first in K3s?

[Carl Jón Denbow]

Well, Don, I finally got both modules installed.  Boy do I hate working 
with TMP connectors in close quarters, especially the flimsily mounted 
females on boards such as the K3RXA.  But that's another story.  Right 
now, I seem to have a problem with the K144XV.  I've installed it 
according to directions and have followed the setup directions on p. 20, 
but I can neither receive not transmit anything on 2M.  I can tune to a 
2M frequency, but I can't even execute the SQL function on FM.  Any 
suggestions as where to start looking for the problem?  Tnxs & 73, Carl, 
N8VZ


Don Wilhelm wrote:

Carl,

I think I understand why you are confused.  Yes, since you already 
have the rear panel with the ANT3 hole, resume about the middle of 
page 12 where it begins with "Locate the TMP cable ..."


In order to tighten the BNC connector, you may find it easier to 
loosen the panel and tilt it back, but if you can get whichever tool 
you are using to tighten the nut on securely without removing the 
panel, that is OK too.  Make certain the BNC jack is adequately tight.


73,
Don W3FPR

On 9/22/2015 12:41 PM, Carl Jón Denbow wrote:
OK, Don, I've run into a little confusion: the bottom of page 11 of 
the K144XV instructions has details about installing a new back panel 
with an ANT 3 hole. However, I don't have a replacement panel and my 
K3s back panel already has an ANT 3 hole.   A few pages earlier the 
instructions have a note to skip over some items if you have a K3s, 
but this is not one of them; in fact, the skip instructions say to 
resume at this point.   It seems to me that I actually need to resume 
somewhere down the page on page 12, but I'm having a little trouble 
figuring out where.   Thanks for any further help you can give me.  
-- 73 de Carl, N8VZ


Don Wilhelm wrote:

Carl,

The KRX3 must go in first.  If you think about it, the K144XV fits 
above the KRX3, so if you install the K144XV first, you will not be 
able to get the KRX3 in place below it.
The K144XV instructions page 11 3rd checkbox tells you when to 
install the KRX3 *if* you had removed it.  This is the time to 
install the KRX3.


73,
Don W3FPR


On 9/21/2015 2:27 PM, Carl Jón Denbow wrote:
I seem to have a dilemma.  I'm getting ready to install both the 
K144XV and the KRX3A in my new K3s. The respective instructions 
each say to remove the other first.  I've read through both 
manuals, and I'm still confused on the best order to do these two 
operations. I put my KRX3A together last night, and it's ready to 
install after I do the other things required inside the K3s 
itself.  If anyone on this list has installed these two modules at 
the same time, I would very much appreciate their insights before I 
plunge forward.  Might save me from having to backtrack because I 
did a particular step prematurely.  Thanks for any help anyone can 
give me.










--
=
Carl Jón Denbow, N8VZ
17 Coventry Lane
Athens, Ohio 45701-3718

c...@n8vz.com
www.n8vz.com
EM89wh

IRLP 4533   Echolink 116070

PSK and JT65 Forever!
=

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Re: [Elecraft] K144XV & KRX3A, install which first in K3s?

[Carl Jón Denbow]

OK, Don, I've run into a little confusion: the bottom of page 11 of the 
K144XV instructions has details about installing a new back panel with 
an ANT 3 hole. However, I don't have a replacement panel and my K3s back 
panel already has an ANT 3 hole.   A few pages earlier the instructions 
have a note to skip over some items if you have a K3s, but this is not 
one of them; in fact, the skip instructions say to resume at this 
point.   It seems to me that I actually need to resume somewhere down 
the page on page 12, but I'm having a little trouble figuring out 
where.   Thanks for any further help you can give me.  -- 73 de Carl, N8VZ


Don Wilhelm wrote:

Carl,

The KRX3 must go in first.  If you think about it, the K144XV fits 
above the KRX3, so if you install the K144XV first, you will not be 
able to get the KRX3 in place below it.
The K144XV instructions page 11 3rd checkbox tells you when to install 
the KRX3 *if* you had removed it.  This is the time to install the KRX3.


73,
Don W3FPR


On 9/21/2015 2:27 PM, Carl Jón Denbow wrote:
I seem to have a dilemma.  I'm getting ready to install both the 
K144XV and the KRX3A in my new K3s.  The respective instructions each 
say to remove the other first.  I've read through both manuals, and 
I'm still confused on the best order to do these two operations. I 
put my KRX3A together last night, and it's ready to install after I 
do the other things required inside the K3s itself.  If anyone on 
this list has installed these two modules at the same time, I would 
very much appreciate their insights before I plunge forward.  Might 
save me from having to backtrack because I did a particular step 
prematurely.  Thanks for any help anyone can give me.






--
=
Carl Jón Denbow, N8VZ
17 Coventry Lane
Athens, Ohio 45701-3718

c...@n8vz.com
www.n8vz.com
EM89wh

IRLP 4533   Echolink 116070

PSK and JT65 Forever!
=

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Re: [Elecraft] K144XV & KRX3A, install which first in K3s?

[Don Wilhelm]

Carl,

I think I understand why you are confused.  Yes, since you already have 
the rear panel with the ANT3 hole, resume about the middle of page 12 
where it begins with "Locate the TMP cable ..."


In order to tighten the BNC connector, you may find it easier to loosen 
the panel and tilt it back, but if you can get whichever tool you are 
using to tighten the nut on securely without removing the panel, that is 
OK too.  Make certain the BNC jack is adequately tight.


73,
Don W3FPR

On 9/22/2015 12:41 PM, Carl Jón Denbow wrote:
OK, Don, I've run into a little confusion: the bottom of page 11 of 
the K144XV instructions has details about installing a new back panel 
with an ANT 3 hole. However, I don't have a replacement panel and my 
K3s back panel already has an ANT 3 hole.   A few pages earlier the 
instructions have a note to skip over some items if you have a K3s, 
but this is not one of them; in fact, the skip instructions say to 
resume at this point.   It seems to me that I actually need to resume 
somewhere down the page on page 12, but I'm having a little trouble 
figuring out where.   Thanks for any further help you can give me.  -- 
73 de Carl, N8VZ


Don Wilhelm wrote:

Carl,

The KRX3 must go in first.  If you think about it, the K144XV fits 
above the KRX3, so if you install the K144XV first, you will not be 
able to get the KRX3 in place below it.
The K144XV instructions page 11 3rd checkbox tells you when to 
install the KRX3 *if* you had removed it.  This is the time to 
install the KRX3.


73,
Don W3FPR


On 9/21/2015 2:27 PM, Carl Jón Denbow wrote:
I seem to have a dilemma.  I'm getting ready to install both the 
K144XV and the KRX3A in my new K3s. The respective instructions each 
say to remove the other first.  I've read through both manuals, and 
I'm still confused on the best order to do these two operations. I 
put my KRX3A together last night, and it's ready to install after I 
do the other things required inside the K3s itself.  If anyone on 
this list has installed these two modules at the same time, I would 
very much appreciate their insights before I plunge forward.  Might 
save me from having to backtrack because I did a particular step 
prematurely.  Thanks for any help anyone can give me.








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Re: [Elecraft] K144XV & KRX3A, install which first in K3s?

[Don Wilhelm]

Carl,

The KRX3 must go in first.  If you think about it, the K144XV fits above 
the KRX3, so if you install the K144XV first, you will not be able to 
get the KRX3 in place below it.
The K144XV instructions page 11 3rd checkbox tells you when to install 
the KRX3 *if* you had removed it.  This is the time to install the KRX3.


73,
Don W3FPR


On 9/21/2015 2:27 PM, Carl Jón Denbow wrote:
I seem to have a dilemma.  I'm getting ready to install both the 
K144XV and the KRX3A in my new K3s.  The respective instructions each 
say to remove the other first.  I've read through both manuals, and 
I'm still confused on the best order to do these two operations. I put 
my KRX3A together last night, and it's ready to install after I do the 
other things required inside the K3s itself.  If anyone on this list 
has installed these two modules at the same time, I would very much 
appreciate their insights before I plunge forward.  Might save me from 
having to backtrack because I did a particular step prematurely.  
Thanks for any help anyone can give me.




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[Elecraft] K144XV & KRX3A, install which first in K3s?

[Carl Jón Denbow]

I seem to have a dilemma.  I'm getting ready to install both the K144XV 
and the KRX3A in my new K3s.  The respective instructions each say to 
remove the other first.  I've read through both manuals, and I'm still 
confused on the best order to do these two operations. I put my KRX3A 
together last night, and it's ready to install after I do the other 
things required inside the K3s itself.  If anyone on this list has 
installed these two modules at the same time, I would very much 
appreciate their insights before I plunge forward.  Might save me from 
having to backtrack because I did a particular step prematurely.  Thanks 
for any help anyone can give me.


73,

Carl
--
=
Carl Jón Denbow, N8VZ
17 Coventry Lane
Athens, Ohio 45701-3718

c...@n8vz.com
www.n8vz.com
EM89wh

IRLP 4533   Echolink 116070

PSK and JT65 Forever!
=

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Re: [Elecraft] K144XV Frequency Error

[Bob]

Hi Bill,

 Under main menu look for XV OFS.  Believe has a +/- 10kc shift range 
which will move you on frequency.   If you had it right before it  may have got 
shifted or even turned off accidentally.


73,
Bob
K2TK

On 9/18/2015 6:51 PM, Bill Schwantes wrote:

Hi Folks,

I need help.  I have an early K3 equipped with the K3EXREF Frequency Lock
Option, K144XV Two Meter Module and K144XV Reference Oscillator Phase Lock
Option.

Some time after installing the KSYN3A synthesizers I noticed that the 144
Mhz band has a 5.6 KHz frequency error.  Signals occurring on the 144.200
calling frequency appear at 144.1944.

Other bands do not display this frequency error.

These observations have been verified by a very precise RF signal
generator.

I verified that the 10 Mhz GPS reference is present and meets the Elecraft
amplitude requirements. The tech mode menu "ref cal" asterisk is present
and blinking, indicating that the radio is phase locked to the 10 Mhz
reference.

I went back through the installation manuals for the options mentioned and
did not find any error.  I'm concluding that I may have made an assembly
error when installing the KSYN3a.

Can some member of the Elecraft "brain trust" help me find and resolve this
problem please?

Thanks, Bill
W7QQ



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Re: [Elecraft] K144XV Frequency Error

[Bill Frantz]

I just installed a 2nd receiver and the 2M ref lock. The KRX3A 
installation manual, which uses the new synths shows J4 of the 
new style main synth connected to REF IN on the 2M transverter.


The ref lock installation manual shows J83 of the old style 
synth connected to REF IN and REF OUT connected to J2 on the 
KREF3 board.


Absent advice from someone at Elecraft who knows, I would use J4 
with the new synths and the J83 with a jumper to the KREF3 board 
with the old synths.


73 Bill AE6JV

On 9/18/15 at 3:51 PM, bill4...@gmail.com (Bill Schwantes) wrote:


Hi Folks,

I need help.  I have an early K3 equipped with the K3EXREF Frequency Lock
Option, K144XV Two Meter Module and K144XV Reference Oscillator Phase Lock
Option.

Some time after installing the KSYN3A synthesizers I noticed that the 144
Mhz band has a 5.6 KHz frequency error.  Signals occurring on the 144.200
calling frequency appear at 144.1944.

Other bands do not display this frequency error.

These observations have been verified by a very precise RF signal
generator.

I verified that the 10 Mhz GPS reference is present and meets the Elecraft
amplitude requirements. The tech mode menu "ref cal" asterisk is present
and blinking, indicating that the radio is phase locked to the 10 Mhz
reference.

I went back through the installation manuals for the options mentioned and
did not find any error.  I'm concluding that I may have made an assembly
error when installing the KSYN3a.

Can some member of the Elecraft "brain trust" help me find and resolve this
problem please?

Thanks, Bill
W7QQ

---
Bill Frantz| Privacy is dead, get over| Periwinkle
(408)356-8506  | it.  | 16345 
Englewood Ave
www.pwpconsult.com |  - Scott McNealy | Los Gatos, 
CA 95032


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Re: [Elecraft] K144XV Frequency Error

[Jim Brown]

On Fri,9/18/2015 5:28 PM, Bill Frantz wrote:
I just installed a 2nd receiver and the 2M ref lock. The KRX3A 
installation manual, which uses the new synths shows J4 of the new 
style main synth connected to REF IN on the 2M transverter. 


I installed five synth boards. It's been a while, but I think I remember 
the instructions for the new boards having really good pix documenting 
what plugs to what, but I don't have an internal 2M transverter.


73, Jim
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Re: [Elecraft] K144XV Frequency Error

[Don Wilhelm]

Bill,

A wild guess - did you have an offset turned on in the menu before you 
installed the K3EXREF?
I assume you have both the K3EXREF option along with the K144RFLK 
options for best stability of the K144XV.

Check the XVn OFS menu parameter.

73,
Don W3FPR

On 9/18/2015 6:51 PM, Bill Schwantes wrote:

Hi Folks,

I need help.  I have an early K3 equipped with the K3EXREF Frequency Lock
Option, K144XV Two Meter Module and K144XV Reference Oscillator Phase Lock
Option.

Some time after installing the KSYN3A synthesizers I noticed that the 144
Mhz band has a 5.6 KHz frequency error.  Signals occurring on the 144.200
calling frequency appear at 144.1944.




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[Elecraft] K144XV Frequency Error

[Bill Schwantes]

Hi Folks,

I need help.  I have an early K3 equipped with the K3EXREF Frequency Lock
Option, K144XV Two Meter Module and K144XV Reference Oscillator Phase Lock
Option.

Some time after installing the KSYN3A synthesizers I noticed that the 144
Mhz band has a 5.6 KHz frequency error.  Signals occurring on the 144.200
calling frequency appear at 144.1944.

Other bands do not display this frequency error.

These observations have been verified by a very precise RF signal
generator.

I verified that the 10 Mhz GPS reference is present and meets the Elecraft
amplitude requirements. The tech mode menu "ref cal" asterisk is present
and blinking, indicating that the radio is phase locked to the 10 Mhz
reference.

I went back through the installation manuals for the options mentioned and
did not find any error.  I'm concluding that I may have made an assembly
error when installing the KSYN3a.

Can some member of the Elecraft "brain trust" help me find and resolve this
problem please?

Thanks, Bill
W7QQ
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[Elecraft] K144XV How to use fm repeaters

[Amateur Radio Operator N5GE]

How dose one set the access tones and and offsets on repeaters when
using K144XV.
Amateur Radio Operator 
N5GE

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Re: [Elecraft] K144XV How to use fm repeaters

[Wayne Burdick]

See "FM" at the bottom of the right column on page 31 of the K3 or K3S manual. 
Let me know if you need further info.

73,
Wayne
N6KR



On Sep 12, 2015, at 1:55 PM, Amateur Radio Operator N5GE  wrote:

> How dose one set the access tones and and offsets on repeaters when
> using K144XV.
> Amateur Radio Operator 
> N5GE


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[Elecraft] K144XV

[Mark]

Has anybody run into this?

Building my K3S and I'm ready to install the K144XV which needs a 1-pin 
connector on the RF board.  The two options in the instructions don't seem 
to match my board and the errata sheet doesn't address it.  I've sent email 
to tech support, but really need to wrap this project up before the wife 
gets home tonight and finds her dining table looking like a work bench!!


I've been looking through the radio for a 1-pin unused connector 
pre-installed - no joy.


The instructions indicate two possible locations near U12 and C198.  No 
holes in that location on my board.


73

Mark, ab7mp (S# 10186) 


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Re: [Elecraft] K144XV

[Mark]

Just heard from tech support.  I will use pin 1 of P95 and got a thanks for 
pointing out an error in the manual.


Great bunch of people at Elecraft - fastest reply to an email query I've 
ever received!


Mark, ab7mp

-Original Message- 
From: Mark

Sent: Friday, August 07, 2015 10:40 AM
To: elecraft@mailman.qth.net
Subject: [Elecraft] K144XV

Has anybody run into this?

Building my K3S and I'm ready to install the K144XV which needs a 1-pin
connector on the RF board.  The two options in the instructions don't seem
to match my board and the errata sheet doesn't address it.  I've sent email
to tech support, but really need to wrap this project up before the wife
gets home tonight and finds her dining table looking like a work bench!!

I've been looking through the radio for a 1-pin unused connector
pre-installed - no joy.

The instructions indicate two possible locations near U12 and C198.  No
holes in that location on my board.

73

Mark, ab7mp (S# 10186)

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Re: [Elecraft] K144XV

[Mark]

Elecraft got right back to me on this - error in the manual.


From Elecraft:


The KXV144 power cord plugs in to P95 (near the batt on the RF board)  the 
pin 1 end

Thanks for pointing the error out in the K3S Manual.


73

Mark, ab7mp



-Original Message- 
From: Mark

Sent: Friday, August 07, 2015 10:40 AM
To: elecraft@mailman.qth.net
Subject: [Elecraft] K144XV

Has anybody run into this?

Building my K3S and I'm ready to install the K144XV which needs a 1-pin
connector on the RF board.  The two options in the instructions don't seem
to match my board and the errata sheet doesn't address it.  I've sent email
to tech support, but really need to wrap this project up before the wife
gets home tonight and finds her dining table looking like a work bench!!

I've been looking through the radio for a 1-pin unused connector
pre-installed - no joy.

The instructions indicate two possible locations near U12 and C198.  No
holes in that location on my board.

73

Mark, ab7mp (S# 10186)

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[Elecraft] K144XV module wanted.

[Viggo Magnus Nilsen]

 

Hello Elecrafter's. 

Do some of you have an Elecraft K144XV module for sale ? 

73' Viggo LA9NEA 

 
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[Elecraft] K144XV

[Mike Harris]

Any particular reason why heatsink compound shouldn't be used between 
the K144XV module and the K3 side panel?


Regards,

Mike VP8NO
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Re: [Elecraft] K144XV

[Don Wilhelm]

Because it is messy stuff and gets everywhere any time it is used!
I believe the thermal pads normally used are just as good if properly 
fitted.


73,
Don W3FPR

On 11/10/2014 9:53 AM, Mike Harris wrote:
Any particular reason why heatsink compound shouldn't be used between 
the K144XV module and the K3 side panel?




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Re: [Elecraft] K144XV

[Mike Harris]

I see no reference in the parts list of the K144XV to thermal pads. 
Neither is there any reference that I have read to thermal pads in the 
installation instructions.


Sure, heatsink compound, carelessly applied, can be messy but given 
there is an oft reported issue with heat and the K144XV it seems, unless 
there are thermal pads somewhere hidden in the procedure, compound 
between the aluminium slab wall of the K144XV and the K3 side panel 
might be a something worth trying.


Regards,

Mike VP8NO

On 10/11/2014 13:05, Don Wilhelm wrote:

Because it is messy stuff and gets everywhere any time it is used!
I believe the thermal pads normally used are just as good if properly
fitted.

73,
Don W3FPR

On 11/10/2014 9:53 AM, Mike Harris wrote:

Any particular reason why heatsink compound shouldn't be used between
the K144XV module and the K3 side panel?





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Re: [Elecraft] K144XV

[Harry Yingst via Elecraft]

I just tested mine into a dummy load
at 144 I get 7 watts and 148 I get 8 watts





  From: Edward R Cole kl...@acsalaska.net
 To: Elecraft@mailman.qth.net 
 Sent: Friday, October 3, 2014 1:30 PM
 Subject: Re: [Elecraft] K144XV
   
Harlan,

I was waiting to see if anyone from Elecraft would respond before 
replying.  I use a different transverter for 2m but the situation is 
the same using the K3.  RF output appears to drop quickly above 
30-MHz when in the transverter mode though receive seems functional 
to 32-MHz enabling receiving the entire 4-MHz 2meter band.

At 146.52 (K3=30.52 MHz) my 50w 2m transverter will only output 8w 
because drive drops to minimum.  This is too low for me to operate in 
the FM repeater sub-band of 2m as all but one repeater are  65 miles 
from me.  Typically takes 25w to have a full-quieted signal thru 
these repeaters.

 From what I understood in communication with Elecraft this is a 
hardware limitation with no fix.  That is the bad news.

The good news is the KX3 suffers no power drop off over the whole 
2meter band with the new 2M module.  3w drives my little RFS 2-23 
amp to 30w which is adequate for my FM needs.

If I need more power the 30w drives my RFC 2-317 to 150w, and if that 
is not enough 55w out of the RFC 2-317 will drive my 8877 to 
1400w.  Of course I do not use the 8877 with repeaters else they 
melt down :-)  I usually run my K3 with the 8877 via the 50w 
transverter for ms/eme.

73, Ed - KL7UW

---
Subject: [Elecraft] K144XV
Message-ID: tpinkyybba4q901cgs6do76g.1412293242...@email.android.com
Content-Type: text/plain; charset=utf-8

Finally got around to installing this in my K3.
There seems to be a large difference in output power vs input power 
when transitioning across the 146.000 threshold. ?
Below 146, 0.5mW drive gives 6 out. Above 146 it only gives 2 out. 
And swr does not change. Ideas?

Harlan
NC3C


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

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Re: [Elecraft] K144XV

[hsherriff]

Thanks Harry.  I just thought it was strange that it changed right where the 
crystal boundaries are. Still not sure I don't have a bum 2m module.  I haven't 
looked at the actual signal to see how it looks. 


Sent from my Verizon Wireless 4G LTE smartphone

div Original message /divdivFrom: Harry Yingst via 
Elecraft elecraft@mailman.qth.net /divdivDate:10/04/2014  2:07 PM  
(GMT-05:00) /divdivTo: Edward R Cole 
kl...@acsalaska.net,Elecraft@mailman.qth.net /divdivSubject: Re: 
[Elecraft] K144XV /divdiv
/divI just tested mine into a dummy load
at 144 I get 7 watts and 148 I get 8 watts





  From: Edward R Cole kl...@acsalaska.net
To: Elecraft@mailman.qth.net 
Sent: Friday, October 3, 2014 1:30 PM
Subject: Re: [Elecraft] K144XV
   
Harlan,

I was waiting to see if anyone from Elecraft would respond before 
replying.  I use a different transverter for 2m but the situation is 
the same using the K3.  RF output appears to drop quickly above 
30-MHz when in the transverter mode though receive seems functional 
to 32-MHz enabling receiving the entire 4-MHz 2meter band.

At 146.52 (K3=30.52 MHz) my 50w 2m transverter will only output 8w 
because drive drops to minimum.  This is too low for me to operate in 
the FM repeater sub-band of 2m as all but one repeater are  65 miles 
from me.  Typically takes 25w to have a full-quieted signal thru 
these repeaters.

From what I understood in communication with Elecraft this is a 
hardware limitation with no fix.  That is the bad news.

The good news is the KX3 suffers no power drop off over the whole 
2meter band with the new 2M module.  3w drives my little RFS 2-23 
amp to 30w which is adequate for my FM needs.

If I need more power the 30w drives my RFC 2-317 to 150w, and if that 
is not enough 55w out of the RFC 2-317 will drive my 8877 to 
1400w.  Of course I do not use the 8877 with repeaters else they 
melt down :-)  I usually run my K3 with the 8877 via the 50w 
transverter for ms/eme.

73, Ed - KL7UW

---
Subject: [Elecraft] K144XV
Message-ID: tpinkyybba4q901cgs6do76g.1412293242...@email.android.com
Content-Type: text/plain; charset=utf-8

Finally got around to installing this in my K3.
There seems to be a large difference in output power vs input power 
when transitioning across the 146.000 threshold. ?
Below 146, 0.5mW drive gives 6 out. Above 146 it only gives 2 out. 
And swr does not change. Ideas?

Harlan
NC3C


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

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Re: [Elecraft] K144XV

[Edward R Cole]

Harlan,

I was waiting to see if anyone from Elecraft would respond before 
replying.  I use a different transverter for 2m but the situation is 
the same using the K3.  RF output appears to drop quickly above 
30-MHz when in the transverter mode though receive seems functional 
to 32-MHz enabling receiving the entire 4-MHz 2meter band.


At 146.52 (K3=30.52 MHz) my 50w 2m transverter will only output 8w 
because drive drops to minimum.  This is too low for me to operate in 
the FM repeater sub-band of 2m as all but one repeater are  65 miles 
from me.  Typically takes 25w to have a full-quieted signal thru 
these repeaters.


From what I understood in communication with Elecraft this is a 
hardware limitation with no fix.  That is the bad news.


The good news is the KX3 suffers no power drop off over the whole 
2meter band with the new 2M module.  3w drives my little RFS 2-23 
amp to 30w which is adequate for my FM needs.


If I need more power the 30w drives my RFC 2-317 to 150w, and if that 
is not enough 55w out of the RFC 2-317 will drive my 8877 to 
1400w.  Of course I do not use the 8877 with repeaters else they 
melt down :-)  I usually run my K3 with the 8877 via the 50w 
transverter for ms/eme.


73, Ed - KL7UW

---
Subject: [Elecraft] K144XV
Message-ID: tpinkyybba4q901cgs6do76g.1412293242...@email.android.com
Content-Type: text/plain; charset=utf-8

Finally got around to installing this in my K3.
There seems to be a large difference in output power vs input power 
when transitioning across the 146.000 threshold. ?
Below 146, 0.5mW drive gives 6 out. Above 146 it only gives 2 out. 
And swr does not change. Ideas?


Harlan
NC3C


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

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[Elecraft] K144XV

[hsherriff]

Finally got around to installing this in my K3.
There seems to be a large difference in output power vs input power when 
transitioning across the 146.000 threshold.  
Below 146, 0.5mW drive gives 6 out. Above 146 it only gives 2 out. And swr does 
not change. Ideas?

Harlan
NC3C


Sent from my Verizon Wireless 4G LTE smartphone
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Re: [Elecraft] [K144XV] [K3] Programmable memory?

[Oliver Johns]

Thanks, Dick.  Also thanks to Brian Hunt.  Will try that.

--Oliver
W6ODJ

Sent from my iPad

 On Mar 31, 2014, at 8:29 PM, Dick Dievendorff d...@elecraft.com wrote:
 
 http://www.elecraft.com/K3/FreqMemEdit/K3_Freq_Mem_Editor.htm
 
 73 de Dick, K6KR
 
 On Mar 31, 2014, at 19:46, Oliver Johns ojo...@metacosmos.org wrote:
 
 Just finished installing a K144XV + K144RFLK in my older K3.  Had to 
 exchange for a KXV3a also.  Went well and everything appears to work as 
 advertised.  But, let me tell you, this exercise renewed and deepened my 
 hatred for those TMP coax connectors.  I accept what Wayne says about their 
 reliability.  But, they sure are a capital P in the A to plug and unplug!  
 Price of excellence.
 
 Am now programming the local repeaters into the memory locations.  This is 
 not quite as tedious as manually programming a BaoFeng UV5r, but it is 
 really close.  And the BaoFeng can be programmed using a nice utility called 
 CHIRP that lets you enter settings in a spreadsheet and then press a button 
 to transfer them en bloc.
 
 Not so for the K3.  You have to do it all by hand.  Which brings me to my 
 point.  Could there be a couple of programmer's commands added to set the 
 memories?  Then maybe someone could write a nice Python program to do it 
 with a computer, or maybe port CHIRP.  Maybe something like:
 ZFxxx145.3205;  (set frequency)
 ZTxxx088.5+;  (set tone)
 ZLxxx*W1AW; (set label)
 where the xxx stands for memory slot 000 to 099. 
 
 Also, while I'm at it, why are there only 5 slots in the label?  After the 
 *, there are only four free.  Not enough for a typical call sign, or much 
 of anything else.  Maybe that is due to memory limitations?
 
 Taking the K3 apart and putting it back together reminded me what a lovely, 
 precision piece of equipment it really is. Amazing what fits in that little 
 box!
 
 Thanks for reading this far.
 
 Oliver
 W6ODJ
 
 
 
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Re: [Elecraft] K144XV power output and tune mode

[John Lemay]

Hello

Mine is much the same - it can run from about 3w to 9w max. It would be
great to have a larger range of adjustment in a more linear progression.

John G4ZTR


-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Pierfrancesco Caci
Sent: 30 March 2014 22:03
To: elecraft@mailman.qth.net
Subject: [Elecraft] K144XV power output and tune mode


Am I supposed to be able to set any arbitrary power level between 0 and
10W on the K144XV? It looks like I can't go below 4-5 W, and the
relation between drive and output looks like it's extremely non-linear. 

driveoutput
0.1 mW   4.2 W
0.2 mW   6.6 W
0.3 mW   8.5 W
0.4 mW   9.5 W
0.5 mW   9.7 W
0.6 mW  10.0 W
0.7 mW  10.6 W
0.8 mW  10.6 W
0.9 mW  10.6 W
1.0 mW  10.6 W
1.5 mW  10.6 W

drive as indicated by the K3, output is measured with a W2 (but I got
similarly looking results with a Diamond).

Seems to me there's no point in using more than 0.6 mW drive.
Also, does the transverter have a concept of TUNE power? Changing power
while in TUNE seems to also change the normal power setting. 

Thanks for the attention

Pf

-- 
Pierfrancesco Caci, ik5pvx
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[Elecraft] [K144XV] [K3] Programmable memory?

[Oliver Johns]

Just finished installing a K144XV + K144RFLK in my older K3.  Had to exchange 
for a KXV3a also.  Went well and everything appears to work as advertised.  
But, let me tell you, this exercise renewed and deepened my hatred for those 
TMP coax connectors.  I accept what Wayne says about their reliability.  But, 
they sure are a capital P in the A to plug and unplug!  Price of excellence.

Am now programming the local repeaters into the memory locations.  This is not 
quite as tedious as manually programming a BaoFeng UV5r, but it is really 
close.  And the BaoFeng can be programmed using a nice utility called CHIRP 
that lets you enter settings in a spreadsheet and then press a button to 
transfer them en bloc.

Not so for the K3.  You have to do it all by hand.  Which brings me to my 
point.  Could there be a couple of programmer's commands added to set the 
memories?  Then maybe someone could write a nice Python program to do it with a 
computer, or maybe port CHIRP.  Maybe something like:
ZFxxx145.3205;  (set frequency)
ZTxxx088.5+;  (set tone)
ZLxxx*W1AW; (set label)
where the xxx stands for memory slot 000 to 099. 

Also, while I'm at it, why are there only 5 slots in the label?  After the *, 
there are only four free.  Not enough for a typical call sign, or much of 
anything else.  Maybe that is due to memory limitations?

Taking the K3 apart and putting it back together reminded me what a lovely, 
precision piece of equipment it really is. Amazing what fits in that little box!

Thanks for reading this far.

Oliver
W6ODJ



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Re: [Elecraft] [K144XV] [K3] Programmable memory?

[Phil Wheeler]

You can't program those memories with the 
utilities on the computer, Oliver?


73, Phil W7OX

On 3/31/14, 7:46 PM, Oliver Johns wrote:

Just finished installing a K144XV + K144RFLK in my older K3.  Had to exchange 
for a KXV3a also.  Went well and everything appears to work as advertised.  
But, let me tell you, this exercise renewed and deepened my hatred for those 
TMP coax connectors.  I accept what Wayne says about their reliability.  But, 
they sure are a capital P in the A to plug and unplug!  Price of excellence.

Am now programming the local repeaters into the memory locations.  This is not 
quite as tedious as manually programming a BaoFeng UV5r, but it is really 
close.  And the BaoFeng can be programmed using a nice utility called CHIRP 
that lets you enter settings in a spreadsheet and then press a button to 
transfer them en bloc.

Not so for the K3.  You have to do it all by hand.  Which brings me to my 
point.  Could there be a couple of programmer's commands added to set the 
memories?  Then maybe someone could write a nice Python program to do it with a 
computer, or maybe port CHIRP.  Maybe something like:
ZFxxx145.3205;  (set frequency)
ZTxxx088.5+;  (set tone)
ZLxxx*W1AW; (set label)
where the xxx stands for memory slot 000 to 099.

Also, while I'm at it, why are there only 5 slots in the label?  After the *, 
there are only four free.  Not enough for a typical call sign, or much of anything else.  
Maybe that is due to memory limitations?

Taking the K3 apart and putting it back together reminded me what a lovely, 
precision piece of equipment it really is. Amazing what fits in that little box!

Thanks for reading this far.

Oliver
W6ODJ


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Re: [Elecraft] [K144XV] [K3] Programmable memory?

[Dick Dievendorff]

http://www.elecraft.com/K3/FreqMemEdit/K3_Freq_Mem_Editor.htm

73 de Dick, K6KR

 On Mar 31, 2014, at 19:46, Oliver Johns ojo...@metacosmos.org wrote:
 
 Just finished installing a K144XV + K144RFLK in my older K3.  Had to exchange 
 for a KXV3a also.  Went well and everything appears to work as advertised.  
 But, let me tell you, this exercise renewed and deepened my hatred for those 
 TMP coax connectors.  I accept what Wayne says about their reliability.  But, 
 they sure are a capital P in the A to plug and unplug!  Price of excellence.
 
 Am now programming the local repeaters into the memory locations.  This is 
 not quite as tedious as manually programming a BaoFeng UV5r, but it is really 
 close.  And the BaoFeng can be programmed using a nice utility called CHIRP 
 that lets you enter settings in a spreadsheet and then press a button to 
 transfer them en bloc.
 
 Not so for the K3.  You have to do it all by hand.  Which brings me to my 
 point.  Could there be a couple of programmer's commands added to set the 
 memories?  Then maybe someone could write a nice Python program to do it with 
 a computer, or maybe port CHIRP.  Maybe something like:
 ZFxxx145.3205;  (set frequency)
 ZTxxx088.5+;  (set tone)
 ZLxxx*W1AW; (set label)
 where the xxx stands for memory slot 000 to 099. 
 
 Also, while I'm at it, why are there only 5 slots in the label?  After the 
 *, there are only four free.  Not enough for a typical call sign, or much 
 of anything else.  Maybe that is due to memory limitations?
 
 Taking the K3 apart and putting it back together reminded me what a lovely, 
 precision piece of equipment it really is. Amazing what fits in that little 
 box!
 
 Thanks for reading this far.
 
 Oliver
 W6ODJ
 
 
 
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[Elecraft] K144XV power output and tune mode

[Pierfrancesco Caci]

Am I supposed to be able to set any arbitrary power level between 0 and
10W on the K144XV? It looks like I can't go below 4-5 W, and the
relation between drive and output looks like it's extremely non-linear. 

driveoutput
0.1 mW   4.2 W
0.2 mW   6.6 W
0.3 mW   8.5 W
0.4 mW   9.5 W
0.5 mW   9.7 W
0.6 mW  10.0 W
0.7 mW  10.6 W
0.8 mW  10.6 W
0.9 mW  10.6 W
1.0 mW  10.6 W
1.5 mW  10.6 W

drive as indicated by the K3, output is measured with a W2 (but I got
similarly looking results with a Diamond).

Seems to me there's no point in using more than 0.6 mW drive.
Also, does the transverter have a concept of TUNE power? Changing power
while in TUNE seems to also change the normal power setting. 

Thanks for the attention

Pf

-- 
Pierfrancesco Caci, ik5pvx
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Re: [Elecraft] K144XV - More Advice Requested

[K7MDL]

The ref lock and TCXO options are not needed for normal work.  I do have them
both since I use mine to drive microwave transverters and I also run digital
modes where it is desirable to have the smallest drift and absolute
frequency predictability.  At 2M for FM and casual CW/SSB work I doubt you
need the options.

Filters: FM covers AM.   Be sure to assign the filters to each mode.

The accessory connector has a few digital control outputs you can leverage.
The manual explains the various ways to configure them, it is quite
flexible.

The FT-847 was a good VHF radio for me as long as you are not exposed to
nearby strong local stations.  For contesting on a mountain top as a rover
it was hurting bad, even with an Inrad filter added.  However if you want to
operate satellite, it is really easy to do with the 2M/70cm cross banding
capability.  





--
View this message in context: 
http://elecraft.365791.n2.nabble.com/K144XV-More-Advice-Requested-tp7581720p7581757.html
Sent from the Elecraft mailing list archive at Nabble.com.
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[Elecraft] K144XV - More Advice Requested

[Joel Black]

After my initial email regarding the K144XV, I went to work trying to 
sell stuff. As of today, I think I have enough to buy all I need for the 
K144XV option. I have some questions though. I'll get to those in a minute.


As I stated before, the purchase of the K144XV is being done to both 
consolidate and simplify my station. I have just sold an ID-880H D-STAR 
radio which I used very little. I really don't much get on 2 m in the 
house - mostly when I'm piddling around town or back and forth to work. 
However, I do want the capability to work local repeaters. I have never 
done any terrestrial 2 m CW / SSB (although I did my share of satellite 
work in the late 90's and early 00's). I am interested in 2 m CW and 
have antennas I could modify for that; however, my tower is only 35' 
tall (about 10.5 m). I don't know if I'll be satisfied with that or not. 
All of that said, here are my questions:


1. I will need the FM filter to work local 2 m FM repeaters. If memory 
serves, the FM filter will also allow AM transmission. Is this correct 
or am I mistaken?


2. For 2 m SSB / CW work, I will need the K144RFLK (or it's at least 
recommended), correct? Does the K144RFLK lock to the standard TCXO or 
will I need the super-stable TCXO (KTCXO3-1) also?


3. I have a 2 m preamp left over from my satellite days (it's an Icom 
AG-35 that will allow transmit through). Is there a way to turn the 
preamp on from the K3 without having to install a bias-T and switch?


I want to get as much bang for my buck as possible. I don't want to 
spend all this money and only be able to work 2 m FM with very limited 2 
m CW.


At the risk of expanding my station (something I do *not* want to do), I 
have limited access to an FT-847 that I could try before I buy. I could 
actually buy it cheaper than all that I think I need for the K144XV. The 
FT-847 does not have a very good HF transceiver, but the the VHF/UHF 
part is great.


I appreciate all advice or suggestions. Thanks.

73,
Joel - W4JBB
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Re: [Elecraft] K144XV Option

[WW2R Elecraft]

There was talk by Wayne when the K144XV was introduced that the K144XV could
be wired for a separate 144rx ports, but I have seen nothing written up so
far. 

I noticed that there was a 3 pin header (normally with jumper) near the
unused cable outlets marked 144IF in the box cover. Investigation revealed
that by removing the jumper and connecting a coax centre conductor to the
centre pin of the 3 and the coax shield to the previously unused pin
(ground) I had a separate 144 receiver Input. I have an rg174 lead coming
out of the back panel, there is probably a prettier way!

Perhaps this will get officially written up some day?

Dave

Ww2r
 

From: Lance Collister, W7GJ w...@q.com
To: Joel Black w4...@charter.net, elecraft
elecraft@mailman.qth.net, elecraft...@yahoogroups.com
Subject: Re: [Elecraft] K144XV Option

Hello Joel,

However, it only has ONE coaxial connector on the rear of the radio, so you
lose the 
ability to have a separate receive input like you can on all the other
bands.   The 
option for a 2m transverter set up is ELIMINATED when you install the
K144XV.  

Hope this helps!  GL and VY 73, Lance


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Re: [Elecraft] K144XV Option

[Lance Collister, W7GJ]

Hi Dave,

Boy, it sure would be GREAT if there were some way that the K144XV receive line could 
be routed out through the BNC connectors in the transverter module so you could 
enable the 2m receive by either adding a BNC jumper or an external receive-only 
preamp acoss those terminals!  For those of us with tower mounted preamps on 2m, a 
separate 2m receive line would sure be convenient!!!


VY 73, Lance


On 12/9/2013 5:38 PM, WW2R Elecraft wrote:

There was talk by Wayne when the K144XV was introduced that the K144XV could
be wired for a separate 144rx ports, but I have seen nothing written up so
far.

I noticed that there was a 3 pin header (normally with jumper) near the
unused cable outlets marked 144IF in the box cover. Investigation revealed
that by removing the jumper and connecting a coax centre conductor to the
centre pin of the 3 and the coax shield to the previously unused pin
(ground) I had a separate 144 receiver Input. I have an rg174 lead coming
out of the back panel, there is probably a prettier way!

Perhaps this will get officially written up some day?

Dave

Ww2r
  


From: Lance Collister, W7GJ w...@q.com
To: Joel Black w4...@charter.net, elecraft
elecraft@mailman.qth.net,   elecraft...@yahoogroups.com
Subject: Re: [Elecraft] K144XV Option

Hello Joel,

However, it only has ONE coaxial connector on the rear of the radio, so you
lose the
ability to have a separate receive input like you can on all the other
bands.   The
option for a 2m transverter set up is ELIMINATED when you install the
K144XV.

Hope this helps!  GL and VY 73, Lance


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--
Lance Collister, W7GJ
(ex WA3GPL, WA1JXN, WA1JXN/C6A, ZF2OC/ZF8, E51SIX, 3D2LR, 5W0GJ, E6M, TX5K)
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] K144XV Option

[Joel Black]

Thanks for all the replies regarding the K144XV option. For some reason, 
I never got them in my email reader - they seem to be filtered. Have I 
filtered myself? I do not know.


I may purchase at a later date, but for now, I'll have to keep what I 
have. I have to sell the ID-880H and have it fully fund the K144XV. 
Unfortunately, that is not possible given all the additional equipment 
I'd have to buy to keep my current capabilities. To have it replace what 
I have, I'd have to purchase the 13 MHz FM filter which I do not have.


However, that is not to say that I will *not* buy that option.

Years ago, I was big into amateur satellites. That era of my amateur 
radio hobby ended with the lack of reliable linear transponder 
satellites and the restrictions that came about after the events of 
9/11/2001. This is neither the time nor the place for political 
arguments regarding those decisions and I do not debate news or politics 
anymore. That said, I still have a couple of 2m antennas I used for 
satellite work. One of them is a dual-polarized (not circular) Cushcraft 
that might work nicely for terrestrial 2m CW.


Terrestrial 2m CW really intrigues me.

73,
Joel - W4JBB
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[Elecraft] K144XV Option

[Joel Black]

Sorry if this is a duplicate post. I think I sent it from the wrong email.

I am looking at further downsizing my station and I have a question 
about the K144XV transverter for the K3.


My current setup is the K3 (160 - 6 m), the P3, and an Icom ID-880H 
(D-STAR). I am on D-STAR less than once per month. For that matter, I 
rarely get on 2 m when I'm at home. Two meters is my to-and-from work 
and my out-and-about driving band. I don't do mobile HF because it's too 
much to fiddle with and I drive a company work truck (I probably 
wouldn't do mobile HF unless someone else was driving). Even though I do 
not get on 2 m from the house very much, I'd still like the capability 
and I'm in the process of simplifying and minimizing my life. I thought 
the K144XV would help with that.


What are the opinions of the K144XV? All good and bad are welcome.

Thanks,
Joel - W4JBB
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Re: [Elecraft] K144XV Option

[Lance Collister, W7GJ]

Hello Joel,

I have the K144XV built-in tranvsverter option for the K3, and I am very pleased with 
it.  Here are some thoughts about it:


On the POSITIVE side, it is very stable in frequency, and allows me to operate  2m 
EME without changing rigs or cables ;-)


However, it only has ONE coaxial connector on the rear of the radio, so you lose the 
ability to have a separate receive input like you can on all the other bands.   The 
option for a 2m transverter set up is ELIMINATED when you install the K144XV.  So, I 
had to add a pair of coaxial relays on the back of the rig to switch the rig to 
connect to my preamp and receive line on RX, or my amplifier on TX.  Since it only 
has 10w output maximum, I had to add a solid state intermediate amp in the TX line to 
drive my 8877.


If all you want to do on 2m is use it barefoot for repeaters, or have it run through 
some sort of RF-SWITCHED solid state amp, you should have not trouble.  Of course, I 
don't have the FM filters in mine anyway, so I couldn't use it on FM repeaters even 
if I wanted to.


The only issue I have with it is that it seems to be a little off frequency on 2m, 
but I am sure there must be some way to tweak just the 2m frequency.  I know when I 
still had the option of using the external 2m transverter ports, there was an option 
for tweaking the K3 frequency to adjust for variations in the frequency of the 
transverter xtals.


Hope this helps!  GL and VY 73, Lance

On 12/7/2013 2:10 PM, Joel Black wrote:

Sorry if this is a duplicate post. I think I sent it from the wrong email.

I am looking at further downsizing my station and I have a question about the 
K144XV transverter for the K3.


My current setup is the K3 (160 - 6 m), the P3, and an Icom ID-880H (D-STAR). I am 
on D-STAR less than once per month. For that matter, I rarely get on 2 m when I'm 
at home. Two meters is my to-and-from work and my out-and-about driving band. I 
don't do mobile HF because it's too much to fiddle with and I drive a company work 
truck (I probably wouldn't do mobile HF unless someone else was driving). Even 
though I do not get on 2 m from the house very much, I'd still like the capability 
and I'm in the process of simplifying and minimizing my life. I thought the K144XV 
would help with that.


What are the opinions of the K144XV? All good and bad are welcome.

Thanks,
Joel - W4JBB
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--
Lance Collister, W7GJ
(ex WA3GPL, WA1JXN, WA1JXN/C6A, ZF2OC/ZF8, E51SIX, 3D2LR, 5W0GJ, E6M, TX5K)
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] K144XV Option

[Matt Zilmer]

Use of the K144RFLK will provide better K144XV frequency stability.
This device locks the transverter's internal oscillator to the TCXO.

It's listed under K3 and Accessories on Elecraft's web page.

73,
matt W6NIA

On Sat, 07 Dec 2013 17:31:04 +, you wrote:

Hello Joel,

I have the K144XV built-in tranvsverter option for the K3, and I am very 
pleased with 
it.  Here are some thoughts about it:

On the POSITIVE side, it is very stable in frequency, and allows me to operate 
 2m 
EME without changing rigs or cables ;-)

However, it only has ONE coaxial connector on the rear of the radio, so you 
lose the 
ability to have a separate receive input like you can on all the other bands.  
 The 
option for a 2m transverter set up is ELIMINATED when you install the K144XV.  
So, I 
had to add a pair of coaxial relays on the back of the rig to switch the rig 
to 
connect to my preamp and receive line on RX, or my amplifier on TX.  Since it 
only 
has 10w output maximum, I had to add a solid state intermediate amp in the TX 
line to 
drive my 8877.

If all you want to do on 2m is use it barefoot for repeaters, or have it run 
through 
some sort of RF-SWITCHED solid state amp, you should have not trouble.  Of 
course, I 
don't have the FM filters in mine anyway, so I couldn't use it on FM repeaters 
even 
if I wanted to.

The only issue I have with it is that it seems to be a little off frequency on 
2m, 
but I am sure there must be some way to tweak just the 2m frequency.  I know 
when I 
still had the option of using the external 2m transverter ports, there was an 
option 
for tweaking the K3 frequency to adjust for variations in the frequency of the 
transverter xtals.

Hope this helps!  GL and VY 73, Lance

On 12/7/2013 2:10 PM, Joel Black wrote:
 Sorry if this is a duplicate post. I think I sent it from the wrong email.

 I am looking at further downsizing my station and I have a question about 
 the 
 K144XV transverter for the K3.

 My current setup is the K3 (160 - 6 m), the P3, and an Icom ID-880H 
 (D-STAR). I am 
 on D-STAR less than once per month. For that matter, I rarely get on 2 m 
 when I'm 
 at home. Two meters is my to-and-from work and my out-and-about driving 
 band. I 
 don't do mobile HF because it's too much to fiddle with and I drive a 
 company work 
 truck (I probably wouldn't do mobile HF unless someone else was driving). 
 Even 
 though I do not get on 2 m from the house very much, I'd still like the 
 capability 
 and I'm in the process of simplifying and minimizing my life. I thought the 
 K144XV 
 would help with that.

 What are the opinions of the K144XV? All good and bad are welcome.

 Thanks,
 Joel - W4JBB
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Matt Zilmer, W6NIA
www.elecraft.com
831-763-4211  x129
Skype: matt.zilmer

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Re: [Elecraft] K144XV Option

[Jim Bennett]

Hi Joel -

I did what you are considering - downsizing, sort of. I had the K3/100 and P3 
combo along with an IC-207H dual band radio. I rarely ever got on 440, so I 
decided to add the K3 internal 144 MHz module. As a bonus, selling the 
dual-bander paid for a good part of the K144XV's price! Installation was pretty 
easy, and the unit works perfectly. I have the FM filter in the K3 so I can 
(and do) use the local repeaters when I get in the mood. In addition, having 
CW/SSB capability on 2 meters is pretty cool. A long time ago I had a Yaesu 
FT-736R and I did a little CW operating on the band, and I missed that 
capability. Anyway, the K144XV puts out a max of about 10-12 watts, so unless 
you've got a tower and a nice high-gain yagi on top of it, you aren't going to 
be doing Worked All States or EME. I gave my 2 meter signal a little more 
muscle by building the 80 watt all-mode linear amp that was designed by W6PQL 
and featured in the May 2013 issue of QST. Here is a link to the amp info on
  his web site: http://www.w6pql.com/2_meter_80w_all_mode_amplifier.htm

Bottom line: a nice addition to your K3 and a way to eliminate a piece of 
equipment from your desk.

Jim / W6JHB

On   Saturday, Dec 7, 2013, at  Saturday, 6:10 AM, Joel Black wrote:

 Sorry if this is a duplicate post. I think I sent it from the wrong email.
 
 I am looking at further downsizing my station and I have a question about the 
 K144XV transverter for the K3.
 
 My current setup is the K3 (160 - 6 m), the P3, and an Icom ID-880H (D-STAR). 
 I am on D-STAR less than once per month. For that matter, I rarely get on 2 m 
 when I'm at home. Two meters is my to-and-from work and my out-and-about 
 driving band. I don't do mobile HF because it's too much to fiddle with and I 
 drive a company work truck (I probably wouldn't do mobile HF unless someone 
 else was driving). Even though I do not get on 2 m from the house very much, 
 I'd still like the capability and I'm in the process of simplifying and 
 minimizing my life. I thought the K144XV would help with that.
 
 What are the opinions of the K144XV? All good and bad are welcome.
 
 Thanks,
 Joel - W4JBB
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[Elecraft] [K144XV] SWR indication

[Oliver Johns]

Folks,

Can't seem to find this in the user's manuals.  The K144XV internal 2 meter 
transverter for the K3 presumably has a 50 ohm output, but no antenna tuner.  
I'd like to use one with a commercial antenna that has a nominal impedance of 
50 ohms, fed by a 30 foot run of LMR400 coax.  I wonder if there is any 
indication from the K144XV if the SWR is out of line.  What would it do?  
Unfortunately, my VNA doesn't reach 2 meters, so I'd be guessing all the way.  
Maybe someone has some experience with this?

Thanks and 73,

Oliver Johns
W6ODJ
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[Elecraft] K144xv power output

[Fausto Coletti]

Hi all, 

I should reduce the output power of the K144XV to a level of less than 1 Watt. 
I need this because I use the 144 MHz band to drive my microwave transverter. 
I tried to adjust the parameter config XV1 PWR to the value L .01 but the 
output power does not drop below 3 W. 
Then I thought of two possible solutions: 

1) insert an attenuator on the cable IF IN of the K144XV 
2)try adjusting the trimmer R87 on the K144XV 

Which is the best solution? 

73, Fausto IK4NMF
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[Elecraft] K144XV + K144RFLK for sale

[Oliver Dröse]

Hi guys,

my K144XV internal 2 m transverter does not see much practical use (for
contests I'm using my Icom transceiver as I need more power out to drive the
big tube amp). Therefor I just removed it from my K3 during assembly of the
sub-RX. It's up for sale including the K144RFLK reference lock board.

Preferrably in Germany or Europe, but will also ship worldwide. Let me know 
off list if interested.


73, Olli - DH8BQA



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[Elecraft] K144XV Utility for Mac OS/X and LInux now available

[Dick Dievendorff]

We have updated our K144XV software page to include new links to Mac OS/X
and Linux versions of our K144XV Utility.

 

http://www.elecraft.com/K3/k144xv_software.htm

 

Thanks to David, W4SMT for his porting efforts.

 

73 de Dick, K6KR

 

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[Elecraft] K144XV

[Fausto Coletti]

Today I installed the module K144XV. It all works ok but I noticed several 
spurious signals received, in particular each 12.5 kHz at a level 
of around -140 dbm indicated on P3, plus some pretty strong signals such as at 
144.4165 to S7 and others.
Obviously signals are present with the antenna disconnected and with a 50 Ohm 
load on the antenna connector. 
I exclude the origin from the outside of the transceiver, I disconnected all 
possible noise sources such as switching power supplies and similar. 
It 's normal or there may be a problem? Any suggestions? 

Fausto IK4NMF
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Re: [Elecraft] K144XV

[Tom H Childers]

That sounds like a P3 cable problem.  There have been reports of
faulty BNC cables supplied in a batch that was bad from the supplier.

Try contacting Elecraft and describe the problem to them.

Also while you are waiting to call Elecraft over the week-end, make
sure that ALL of the cable routing is as it was before the
installation.  That covers any existing cables you may have moved
around.

Good luck,

73,
Tom
Amateur Radio Operator N5GE
ARRL Lifetime Member
QCWA Lifetime Member




On Sat, 18 May 2013 18:41:53 +0200, Fausto Coletti
faustocole...@alice.it wrote:

Today I installed the module K144XV. It all works ok but I noticed several 
spurious signals received, in particular each 12.5 kHz at a level 
of around -140 dbm indicated on P3, plus some pretty strong signals such as at 
144.4165 to S7 and others.
Obviously signals are present with the antenna disconnected and with a 50 Ohm 
load on the antenna connector. 
I exclude the origin from the outside of the transceiver, I disconnected all 
possible noise sources such as switching power supplies and similar. 
It 's normal or there may be a problem? Any suggestions? 

Fausto IK4NMF
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73,
Tom
Amateur Radio Operator N5GE
ARRL Lifetime Member
QCWA Lifetime Member

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Re: [Elecraft] K144XV

[Fausto Coletti]

Thank you for answer,

The spurious signals are not only visible on P3 but perfectly audible in the
speaker.
I have also tried turning P3 off and unplug it but the signals are always
present and audible.

Fausto IK4NMF

- Original Message - 
From: Tom H Childers n...@n5ge.com

To: Fausto Coletti faustocole...@alice.it
Cc: 'Elecraft Mailing List' elecraft@mailman.qth.net
Sent: Saturday, May 18, 2013 7:31 PM
Subject: Re: [Elecraft] K144XV


That sounds like a P3 cable problem.  There have been reports of
faulty BNC cables supplied in a batch that was bad from the supplier.

Try contacting Elecraft and describe the problem to them.

Also while you are waiting to call Elecraft over the week-end, make
sure that ALL of the cable routing is as it was before the
installation.  That covers any existing cables you may have moved
around.

Good luck,

73,
Tom
Amateur Radio Operator N5GE
ARRL Lifetime Member
QCWA Lifetime Member




On Sat, 18 May 2013 18:41:53 +0200, Fausto Coletti
faustocole...@alice.it wrote:

Today I installed the module K144XV. It all works ok but I noticed several 
spurious signals received, in particular each 12.5 kHz at a level
of around -140 dbm indicated on P3, plus some pretty strong signals such as 
at 144.4165 to S7 and others.
Obviously signals are present with the antenna disconnected and with a 50 
Ohm load on the antenna connector.
I exclude the origin from the outside of the transceiver, I disconnected 
all possible noise sources such as switching power supplies and similar.

It 's normal or there may be a problem? Any suggestions?

Fausto IK4NMF
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73,
Tom
Amateur Radio Operator N5GE
ARRL Lifetime Member
QCWA Lifetime Member



-
Nessun virus nel messaggio.
Controllato da AVG - www.avg.com
Versione: 2013.0.3336 / Database dei virus: 3162/6335 -  Data di rilascio: 
18/05/2013



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Re: [Elecraft] K144XV Strange Readings

[Jim Miller]

Will someone please describe this center spacer so I can verify whether it
is in mine or not?  

Was it an active part of the circuitry?  If I have it in mine can I just
remove it without any other modifications?  Why does removing an inactive
part have any effect?

73, Jim KG0KP

-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Ron D'Eau Claire
Sent: Friday, May 17, 2013 10:20 PM
To: mtebe...@mchsi.com; elecraft@mailman.qth.net
Subject: Re: [Elecraft] K144XV Strange Readings

Mike: First e-mail k3supp...@elecraft.com or call them (831-763-4211) for
further guidance. 

As Dave says the center spacer was removed very early on when some stability
issues arose. I have an early pre-production board, but it was stable with
and now without that spacer. This sounds like something new but may be
something that you can tackle yourself. 

73, Ron AC7AC


-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Michael Eberle
Sent: Friday, May 17, 2013 7:57 PM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] K144XV Strange Readings

Dave,

Yes that is exactly what it appears to be doing.  My frequency counter is
showing RF at 153.600 MHz regardless of what part of the band it is tuned
to.  I removed the K144XV Reference Lock Board and there was no change.  Is
there anything that can be done to correct this, or do I need to send it
back to Elecraft?  I just bought it 2 months ago so it shouldn't be an early
production run board.

Thanks,
Mike KI0HA

On 5/17/2013 6:50 PM, WW2R Elecraft wrote:
 Both my early edition K144XV were not unconditionally stable and were 
 swr intolerant

 I think you will find that the 3:1 swr is because it is oscillating 
 out of band. Try listening on a scanner. I have experienced this on 
 my two k144xv and g4ddk had the same issue with his. One example 
 produced 162MHz, one 168MHz one around 158MHz. When you tune or speak 
 it
stabilizes and generates
 on 2m   My k144xv were fine if I operated at the bottom end of 2m where
the
 swr was 1.1:1 but my antenna swr rose to 1.6:1 at around 144.8MHz  and 
 above this point it showed the instability you mentioned


 Mine were replaced with the later production run k144xv (the one 
 without the centre spacer, but that could just be coincidence!) and 
 the issue has not arisen since

 Dave

 G4FRE

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Re: [Elecraft] K144XV Strange Readings

[Ron D'Eau Claire]

Jim, it was a ground loop problem caused by the metal spacer. You'd have to
have a very early K144XV for it to be present. Here's how to tell if yours
needs modifying as described in the mod instructions:

This change was incorporated into the K144XV assembly process in September,
2010. All K144XV's shipped
after September are already modified. If you are unsure, remove the K3 top
cover and inspect the K144XV
module mounted on the left side panel. If there is a screw in the hole
directly above the Elecraft
name on the top label, the modification has not been done.

The K144XV module is directly under the K3 top cover mounted on the left
side panel (when the front of the K3 is toward you). The label says
Elecraft K144XV 2M Module.  You probably don't need to completely remove
the top cover. Just lift it enough to see that label. Note that there should
be two empty holes in the top - that one and one closer to the side panel
(unless Elecraft has redesigned the cover to remove the superfluous holes).


Note that there SHOULD be a screw in a hole just to the right of the word
STATUS on the edge farthest from the side panel.

If yours has a screw in that location (instead of an empty hole), let me
know and I'll dig up a copy of the mod sheet for you. I can no longer find
it on the Elecraft web site. 

73 Ron AC7AC



-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Jim Miller
Sent: Saturday, May 18, 2013 1:59 PM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] K144XV Strange Readings

Will someone please describe this center spacer so I can verify whether it
is in mine or not?  

Was it an active part of the circuitry?  If I have it in mine can I just
remove it without any other modifications?  Why does removing an inactive
part have any effect?

73, Jim KG0KP

-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Ron D'Eau Claire
Sent: Friday, May 17, 2013 10:20 PM
To: mtebe...@mchsi.com; elecraft@mailman.qth.net
Subject: Re: [Elecraft] K144XV Strange Readings

Mike: First e-mail k3supp...@elecraft.com or call them (831-763-4211) for
further guidance. 

As Dave says the center spacer was removed very early on when some stability
issues arose. I have an early pre-production board, but it was stable with
and now without that spacer. This sounds like something new but may be
something that you can tackle yourself. 

73, Ron AC7AC


-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Michael Eberle
Sent: Friday, May 17, 2013 7:57 PM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] K144XV Strange Readings

Dave,

Yes that is exactly what it appears to be doing.  My frequency counter is
showing RF at 153.600 MHz regardless of what part of the band it is tuned
to.  I removed the K144XV Reference Lock Board and there was no change.  Is
there anything that can be done to correct this, or do I need to send it
back to Elecraft?  I just bought it 2 months ago so it shouldn't be an early
production run board.

Thanks,
Mike KI0HA

On 5/17/2013 6:50 PM, WW2R Elecraft wrote:
 Both my early edition K144XV were not unconditionally stable and were 
 swr intolerant

 I think you will find that the 3:1 swr is because it is oscillating 
 out of band. Try listening on a scanner. I have experienced this on 
 my two k144xv and g4ddk had the same issue with his. One example 
 produced 162MHz, one 168MHz one around 158MHz. When you tune or speak 
 it
stabilizes and generates
 on 2m   My k144xv were fine if I operated at the bottom end of 2m where
the
 swr was 1.1:1 but my antenna swr rose to 1.6:1 at around 144.8MHz  and 
 above this point it showed the instability you mentioned


 Mine were replaced with the later production run k144xv (the one 
 without the centre spacer, but that could just be coincidence!) and 
 the issue has not arisen since

 Dave

 G4FRE

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[Elecraft] K144XV Strange Readings

[Michael Eberle]

I've noticed strange behavior on both the W2 watt meter and a 
cross-needle meter when using my K3 on 2 meters.  Just curious if anyone 
has had problems like this?  In SSB mode, keying the mic without any 
audio causes the watt meter to show about 3 watts output power and 3:1 
SWR.  However If I hold the TUNE button and put out a carrier It shows 
the expected 7-10 Watts forward with normal low SWR.  It also appears to 
show normal readings while speaking into the mic, but goes to the 
unusual readings with in between audio peaks.


Thanks
Mike KI0HA
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Re: [Elecraft] K144XV Strange Readings

[Chad Wasinger]

Mike - yes, I've seen the same thing. I can't put my finger on it either but 
when using the k144xv with my wattmeter, I have high SWR always. Normally I can 
still run the 5-7 watts into an amp without issues but there are times this 
high SWR trips things off.
Elecraft - it would be nice to finally understand what needs to be done to 
correct this issues. Very common among the users that are on SSB/CW, not so 
much FM. 

 Date: Fri, 17 May 2013 05:26:24 -0500
 From: mtebe...@mchsi.com
 To: Elecraft@mailman.qth.net
 Subject: [Elecraft] K144XV Strange Readings
 
 I've noticed strange behavior on both the W2 watt meter and a 
 cross-needle meter when using my K3 on 2 meters.  Just curious if anyone 
 has had problems like this?  In SSB mode, keying the mic without any 
 audio causes the watt meter to show about 3 watts output power and 3:1 
 SWR.  However If I hold the TUNE button and put out a carrier It shows 
 the expected 7-10 Watts forward with normal low SWR.  It also appears to 
 show normal readings while speaking into the mic, but goes to the 
 unusual readings with in between audio peaks.
 
 Thanks
 Mike KI0HA
 __
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Re: [Elecraft] K144XV Strange Readings

[Michael Eberle]

I have the same problem even running it with an amp.  I wondered if maybe 
somehow some of the 10M IF was coming through causing the meter to show SWR.  
But during modulation, the higher power 2 meter signal caused the meter to 
display correctly. 


Sent from my U.S. Cellular® Smartphone

 Original message 
From: Chad Wasinger chadwasin...@outlook.com 
Date: 05/17/2013  7:12 AM  (GMT-06:00) 
To: mtebe...@mchsi.com,elecraft@mailman.qth.net 
Subject: RE: [Elecraft] K144XV Strange Readings 
 
Mike - yes, I've seen the same thing. I can't put my finger on it either but 
when using the k144xv with my wattmeter, I have high SWR always. Normally I can 
still run the 5-7 watts into an amp without issues but there are times this 
high SWR trips things off.

Elecraft - it would be nice to finally understand what needs to be done to 
correct this issues. Very common among the users that are on SSB/CW, not so 
much FM. 

 Date: Fri, 17 May 2013 05:26:24 -0500
 From: mtebe...@mchsi.com
 To: Elecraft@mailman.qth.net
 Subject: [Elecraft] K144XV Strange Readings
 
 I've noticed strange behavior on both the W2 watt meter and a 
 cross-needle meter when using my K3 on 2 meters. Just curious if anyone 
 has had problems like this? In SSB mode, keying the mic without any 
 audio causes the watt meter to show about 3 watts output power and 3:1 
 SWR. However If I hold the TUNE button and put out a carrier It shows 
 the expected 7-10 Watts forward with normal low SWR. It also appears to 
 show normal readings while speaking into the mic, but goes to the 
 unusual readings with in between audio peaks.
 
 Thanks
 Mike KI0HA
 __
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Re: [Elecraft] K144XV Strange Readings

[John Lemay]

I'm sure this issue was raised only a week or two ago - worth checking back
?

John G4ZTR


-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Chad Wasinger
Sent: 17 May 2013 13:12
To: mtebe...@mchsi.com; elecraft@mailman.qth.net
Subject: Re: [Elecraft] K144XV Strange Readings

Mike - yes, I've seen the same thing. I can't put my finger on it either but
when using the k144xv with my wattmeter, I have high SWR always. Normally I
can still run the 5-7 watts into an amp without issues but there are times
this high SWR trips things off.
Elecraft - it would be nice to finally understand what needs to be done to
correct this issues. Very common among the users that are on SSB/CW, not so
much FM. 

 Date: Fri, 17 May 2013 05:26:24 -0500
 From: mtebe...@mchsi.com
 To: Elecraft@mailman.qth.net
 Subject: [Elecraft] K144XV Strange Readings
 
 I've noticed strange behavior on both the W2 watt meter and a 
 cross-needle meter when using my K3 on 2 meters.  Just curious if anyone 
 has had problems like this?  In SSB mode, keying the mic without any 
 audio causes the watt meter to show about 3 watts output power and 3:1 
 SWR.  However If I hold the TUNE button and put out a carrier It shows 
 the expected 7-10 Watts forward with normal low SWR.  It also appears to 
 show normal readings while speaking into the mic, but goes to the 
 unusual readings with in between audio peaks.
 
 Thanks
 Mike KI0HA
 __
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Re: [Elecraft] K144XV Strange Readings

[AD6XY]

Its oscillating. Stop using it as you are transmitting outside the band -
hence the high VSWR



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Re: [Elecraft] K144XV Strange Readings

[WW2R Elecraft]

Both my early edition K144XV were not unconditionally stable and were swr
intolerant

I think you will find that the 3:1 swr is because it is oscillating out of
band. Try listening on a scanner. I have experienced this on my two k144xv
and g4ddk had the same issue with his. One example produced 162MHz, one
168MHz one around 158MHz. When you tune or speak it stabilizes and generates
on 2m   My k144xv were fine if I operated at the bottom end of 2m where the
swr was 1.1:1 but my antenna swr rose to 1.6:1 at around 144.8MHz  and above
this point it showed the instability you mentioned


Mine were replaced with the later production run k144xv (the one without the
centre spacer, but that could just be coincidence!) and the issue has not
arisen since

Dave

G4FRE



 

Message: 19
Date: Fri, 17 May 2013 05:26:24 -0500
From: Michael Eberle mtebe...@mchsi.com
To: Elecraft@mailman.qth.net
Subject: [Elecraft] K144XV Strange Readings
Message-ID: 519605d0.20...@mchsi.com
Content-Type: text/plain; charset=ISO-8859-1; format=flowed

I've noticed strange behavior on both the W2 watt meter and a 
cross-needle meter when using my K3 on 2 meters.  Just curious if anyone 
has had problems like this?  In SSB mode, keying the mic without any 
audio causes the watt meter to show about 3 watts output power and 3:1 
SWR.  However If I hold the TUNE button and put out a carrier It shows 
the expected 7-10 Watts forward with normal low SWR.  It also appears to 
show normal readings while speaking into the mic, but goes to the 
unusual readings with in between audio peaks.

Thanks
Mike KI0HA

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Re: [Elecraft] K144XV Strange Readings

[Michael Eberle]

Dave,

Yes that is exactly what it appears to be doing.  My frequency counter 
is showing RF at 153.600 MHz regardless of what part of the band it is 
tuned to.  I removed the K144XV Reference Lock Board and there was no 
change.  Is there anything that can be done to correct this, or do I 
need to send it back to Elecraft?  I just bought it 2 months ago so it 
shouldn't be an early production run board.


Thanks,
Mike KI0HA

On 5/17/2013 6:50 PM, WW2R Elecraft wrote:

Both my early edition K144XV were not unconditionally stable and were swr
intolerant

I think you will find that the 3:1 swr is because it is oscillating out of
band. Try listening on a scanner. I have experienced this on my two k144xv
and g4ddk had the same issue with his. One example produced 162MHz, one
168MHz one around 158MHz. When you tune or speak it stabilizes and generates
on 2m   My k144xv were fine if I operated at the bottom end of 2m where the
swr was 1.1:1 but my antenna swr rose to 1.6:1 at around 144.8MHz  and above
this point it showed the instability you mentioned


Mine were replaced with the later production run k144xv (the one without the
centre spacer, but that could just be coincidence!) and the issue has not
arisen since

Dave

G4FRE



  


Message: 19
Date: Fri, 17 May 2013 05:26:24 -0500
From: Michael Eberle mtebe...@mchsi.com
To: Elecraft@mailman.qth.net
Subject: [Elecraft] K144XV Strange Readings
Message-ID: 519605d0.20...@mchsi.com
Content-Type: text/plain; charset=ISO-8859-1; format=flowed

I've noticed strange behavior on both the W2 watt meter and a
cross-needle meter when using my K3 on 2 meters.  Just curious if anyone
has had problems like this?  In SSB mode, keying the mic without any
audio causes the watt meter to show about 3 watts output power and 3:1
SWR.  However If I hold the TUNE button and put out a carrier It shows
the expected 7-10 Watts forward with normal low SWR.  It also appears to
show normal readings while speaking into the mic, but goes to the
unusual readings with in between audio peaks.

Thanks
Mike KI0HA

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Re: [Elecraft] K144XV Strange Readings

[Ron D'Eau Claire]

Mike: First e-mail k3supp...@elecraft.com or call them (831-763-4211) for
further guidance. 

As Dave says the center spacer was removed very early on when some stability
issues arose. I have an early pre-production board, but it was stable with
and now without that spacer. This sounds like something new but may be
something that you can tackle yourself. 

73, Ron AC7AC


-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Michael Eberle
Sent: Friday, May 17, 2013 7:57 PM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] K144XV Strange Readings

Dave,

Yes that is exactly what it appears to be doing.  My frequency counter is
showing RF at 153.600 MHz regardless of what part of the band it is tuned
to.  I removed the K144XV Reference Lock Board and there was no change.  Is
there anything that can be done to correct this, or do I need to send it
back to Elecraft?  I just bought it 2 months ago so it shouldn't be an early
production run board.

Thanks,
Mike KI0HA

On 5/17/2013 6:50 PM, WW2R Elecraft wrote:
 Both my early edition K144XV were not unconditionally stable and were 
 swr intolerant

 I think you will find that the 3:1 swr is because it is oscillating 
 out of band. Try listening on a scanner. I have experienced this on 
 my two k144xv and g4ddk had the same issue with his. One example 
 produced 162MHz, one 168MHz one around 158MHz. When you tune or speak it
stabilizes and generates
 on 2m   My k144xv were fine if I operated at the bottom end of 2m where
the
 swr was 1.1:1 but my antenna swr rose to 1.6:1 at around 144.8MHz  and 
 above this point it showed the instability you mentioned


 Mine were replaced with the later production run k144xv (the one 
 without the centre spacer, but that could just be coincidence!) and 
 the issue has not arisen since

 Dave

 G4FRE

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Re: [Elecraft] K144XV Problem

[K7MDL]

Might double check your xvtr settings in the menus and make sure they look
right.  If you have a recent good config backup of the K3 you can try
restoring it.  

Other things to try:
- Direct setting the frequency via the keypad.
- If you have quick memories assigned to  M1-4 keys to set 2M favorite
frequencies try that.
- Check to see if you can hear a known frequency like packet on 144.390MHz
or a FM repeater. Perhaps the .XXX portion of the dial is accurate as is the
xvrter and the XXX. portion of the display frequency is corrupt.
- Spin the dial either side of 146.0 causes the xverter to switch local LOs.

Any of these methods might get you back were you belong. 

- Mike



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[Elecraft] K144XV TX Spur

[Dale Parfitt]

I did not see any threads on this issue, so here goes.
I added the K144XV to my K3 several years ago. I don't think I have ever used 
it aside maybe from an FM contact to check it out.
My new 23cM transverter has a 144MHz IF so I will now be suing the K144XV.
While setting up the 2M power out, I noticed the Bird wattmeter registering 
around 3W with no audio in SSB mode. Same thing in CW if I depress XMIT on the 
K3 with the CW key open. According to my counter the energy is around 150.4 
MHz- drifting up  slowly in frequency  at 2.8W regardless of drive level to the 
transverter.
Has anyone else seen this? Did I miss an update on the 144XV?
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Re: [Elecraft] K144XV TX Spur

[K7MDL]

Are you sure the transverter is actually transmitting on the desired
frequency also?  Or is the PLL unlocked and on a semi-random frequency.  I
am thinking of the transverter frequency calibration process and if you are
using the reflock feature you have it working right.



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[Elecraft] K144XV?

[Jim Miller]

Is the optional 5V signal on the ANT3 center pin intended to be a T/R
signal to a remote amp/preamp?

I'm just trying to learn a bit about 2m stuff. What sort of external
amps/preamps have folks found useful? Are the preamps/amps mast mounted,
combined or separate?

Thanks

jim
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Re: [Elecraft] K144XV?

[K7MDL]

Could be used for TR signal to a mast preamp or an external amp, but most of
those I have seen need 12V by deafult.  I suspect the 5V is more useful for
transverter TR switching for simplified connections (fewer wires).  You
could have the transverters mounted on a tower making this method more
attractive.  Several transverters support this method of switching.  They in
turn usually have external PTT.  By the time you get a chain of VHF+
equipment hooked up on towers and such, you are probably looking at a
sequencer and/or careful use of indicator contacts on TR relays for positive
switchover control vs a pure timing based operation (hoping the relay
switches in time, every time).



--
View this message in context: 
http://elecraft.365791.n2.nabble.com/K144XV-tp7567376p7567386.html
Sent from the Elecraft mailing list archive at Nabble.com.
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Re: [Elecraft] K144XV vs XV144

[Edward R Cole]

Not a comment on the K144XV vs XV144, but one about running eme.

Use of a low-noise figure preamp is not optional for eme, so 
transverter sensitivity is less important an issue, though its nice 
if it is low.  I use a DEMI 144-28 transverter with 0.8 dB NF 
(unmeasured) and 17-dB conversion gain.  With my 0.1 dB NF preamp 
(26-dB gain) this produces a S4 noise floor in the K3 on 28-MHz (a 
bit too much gain).  This will result in impacting large signal 
handling but I have no issues for that on 2m since the nearest active 
2m eme station is in BC about 1300km away.


Use of an external preamp is encouraged on 2m and higher freq if one 
is into working CW/SSB/digital long-range, weak-signal contacts.  You 
can't work em if you can't hear me!  My 2m-eme receiving system MDS= 
-153 dBm. (-172 dBm with antenna gain).  K3 diversity receiving makes 
eme a real joy!


Best Wished for the Holidays!
Ed - KL7UW
we will be attending Dayton this year!  We will be at the microwavers 
flea mkt location with WA5VJB and NE8I (and others).  I plan to demo 
the new 5w/140w HF amp using the KX3 as exciter.


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Re: [Elecraft] K144XV vs XV144

[Edward R Cole]

oops!  meant to say: you can't work em if you can't hear em, but 
also true on 2m-eme if you can not hear me - LOL!

I run ERP= 73kW on 2m-eme.

Ed

At 09:53 AM 12/16/2012, Edward R Cole wrote:

Not a comment on the K144XV vs XV144, but one about running eme.

Use of a low-noise figure preamp is not optional for eme, so 
transverter sensitivity is less important an issue, though its nice 
if it is low.  I use a DEMI 144-28 transverter with 0.8 dB NF 
(unmeasured) and 17-dB conversion gain.  With my 0.1 dB NF preamp 
(26-dB gain) this produces a S4 noise floor in the K3 on 28-MHz (a 
bit too much gain).  This will result in impacting large signal 
handling but I have no issues for that on 2m since the nearest 
active 2m eme station is in BC about 1300km away.


Use of an external preamp is encouraged on 2m and higher freq if one 
is into working CW/SSB/digital long-range, weak-signal 
contacts.  You can't work em if you can't hear me!  My 2m-eme 
receiving system MDS= -153 dBm. (-172 dBm with antenna gain).  K3 
diversity receiving makes eme a real joy!


Best Wished for the Holidays!
Ed - KL7UW
we will be attending Dayton this year!  We will be at the 
microwavers flea mkt location with WA5VJB and NE8I (and others).  I 
plan to demo the new 5w/140w HF amp using the KX3 as exciter.


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Re: [Elecraft] K144XV vs XV144

[David G4DMP]

Both have a similar low noise, high gain front ends, Ron, and there is
little to choose between them as regards performance. There have been
several comparisons between the two on the reflector and a search on the
nabble archive might prove useful. In your application, with an external
amplifier I think I would be inclined to go for the XV144. (I have both)

73 de David G4DMP

In a recent message, Ron W3ZV w...@verizon.net writes
I am looking to add 2m to my K3. I need to decide whether to get the
internal transverter or the external. The way I would purchase them,
cost is almost equal. Crystal oven on the external, K144RFLK and KXV3
upgrade on the internal. Neither will drive my current brick amp to
full output so, thats a wash as well. Building the XV144  is a plus. So
I guess it comes down to receive performance and transmit stability. If
anyone has made this choice, what made you choose one or the other?
-- 
 + - - - - - - - - - - - - - - - - +
 | David M Pratt, Kippax, Leeds.   |
 | Website: http://www.g4dmp.co.uk |
 + - - - - - - - - - - - - - - - - +

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Re: [Elecraft] K144XV vs XV144

[Fred Smith]

I chose the internal for several reasons the first was to cut down on desk
top clutter even with less power output nice package. I have a 350w brick
and for digital modes and a little SSB it makes more than enough power with
my M2 34' boom 2m yagi that takes care of the heavy lifting for a little
pistol. The key also is to use a very good mast mounted preamp.

With the internal module it also gives you direct frequency readout very
easy, it will do the same with a external also but a little extra setup. All
in all a very nice package bundled all in the radio.

73,
Fred/N0AZZ


-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Ron W3ZV
Sent: Friday, December 14, 2012 11:56 PM
To: Elecraft
Subject: [Elecraft] K144XV vs XV144

I am looking to add 2m to my K3. I need to decide whether to get the
internal transverter or the external. The way I would purchase them, cost is
almost equal. Crystal oven on the external, K144RFLK and KXV3 upgrade on the
internal. Neither will drive my current brick amp to full output so, thats a
wash as well. Building the XV144  is a plus. So I guess it comes down to
receive performance and transmit stability. If anyone has made this choice,
what made you choose one or the other?

Ron, W3ZV




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Re: [Elecraft] K144XV vs XV144

[n5ge]

I have both but like the built-in better.




On Sat, 15 Dec 2012 00:55:47 -0500, Ron W3ZV w...@verizon.net
wrote:

I am looking to add 2m to my K3. I need to decide whether to get the internal 
transverter or the external. The way I would purchase them, cost is almost 
equal. Crystal oven on the external, K144RFLK and KXV3 upgrade on the 
internal. Neither will drive my current brick amp to full output so, thats a 
wash as well. Building the XV144  is a plus. So I guess it comes down to 
receive performance and transmit stability. If anyone has made this choice, 
what made you choose one or the other?

Ron, W3ZV
[snip]
73,
Tom
Amateur Radio Operator N5GE
ARRL Lifetime Member
QCWA Lifetime Member

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Re: [Elecraft] K144XV vs XV144

[John Buck]

The receiver sensitivity of the XV144 was good enough to do moon bounce 
with no other preamp at the antenna.  Had about 120 ft of BuryFlex. 
JT65, and did not drive the power amp to more than 300 watts.  I might 
have gotten more but a bias resistor in the amp was bad at the time.


73, John KH7T


On 12/15/2012 12:25 AM, elecraft-requ...@mailman.qth.net wrote:

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Today's Topics:

1. Re: are KXUSB and KXUSBa interchangeable? (iain macdonnell - N6ML)
2. Re: Vibroplex (Joe K2UF)
3. Re: Vibroplex (Bill Hammond)
4. Re: Vibroplex (Fred Jensen)
5. Re: Is it possible to generate 1750Hz tone on HF with the K3
   ? (Phil Kane)
6. Re: Vibroplex (Buck - k4ia)
7. Re: KPA/KAT 500 Firmware 1.18 (ab2tc)
8. Re: Vibroplex (Ron D'Eau Claire)
9. Re: Is it possible to generate 1750Hz tone on HF with
   (Edward Dickinson III)
   10. Re: Vibroplex (John Saxon)
   11. Re: Vibroplex (w2b...@aol.com)
   12. Re: Cheap and Easy SDR (Kevin Cozens)
   13. Re: KUSB Noise Query - K3 (john petters)
   14. Re: Cheap and Easy SDR (Barry LaZar)
   15. Re: Vibroplex (stan levandowski)
   16. Re: Vibroplex (Ron D'Eau Claire)
   17. CW Machine issue??? (Paul Ormandy ZL4PW)
   18. Re: missed market (Buddy Brannan)
   19. KPA500 Band Changes (n...@n5ge.com)
   20. Re: missed market (Bob K6UJ)
   21. Re: missed market (Bob K6UJ)
   22. Re: missed market (Matt Zilmer)
   23. Just plain WOW! (dan)
   24. K3 KPA500 clearance under shelf (Ron W3ZV)
   25. Possible firmware regression related to ACC2 IO / PTT=LO (K7MJG)
   26. Re: Just plain WOW! (W4SK)
   27. K144XV vs XV144 (Ron W3ZV)
   28. Re: K3 KPA500 clearance under shelf (Gary W. Hvizdak)
   29. Re: K3 KPA500 clearance under shelf (Rick Bates)
   30. Re: K144XV vs XV144 (David G4DMP)
   31. Re: missed market (Fred Smith)
   32. Re: K144XV vs XV144 (Fred Smith)


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[Elecraft] K144XV vs XV144

[Ron W3ZV]

I am looking to add 2m to my K3. I need to decide whether to get the internal 
transverter or the external. The way I would purchase them, cost is almost 
equal. Crystal oven on the external, K144RFLK and KXV3 upgrade on the internal. 
Neither will drive my current brick amp to full output so, thats a wash as 
well. Building the XV144  is a plus. So I guess it comes down to receive 
performance and transmit stability. If anyone has made this choice, what made 
you choose one or the other?

Ron, W3ZV




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[Elecraft] K144XV ordering

[SRD]

Hi,

I'd like to make sure I've got this complete (always did hate the
order page). I have a K3/100 and wanting to add 2M's. Please correct
me if I'm wrong, but what follows is my understanding of whats
required.

- K144XV-K Internal 2M 10w Module Kit
- Check the K3/100 below it
- KXV3A RX Ant., IF Out and Xverter Interface
- A KXUSB interface cable will also be shipped w/ this.

I didn't leave anything out thats required? And the K144RFLK, just
how recommended is this?

Much appreciated.
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Re: [Elecraft] K144XV ordering

[Matt Zilmer]

The K144RFLK is strongly recommended.  There were frequency stability
issues with the 116 and 118 MHz crystals (though  believe this was
improved sometime in the last year or so) used for the injection
frequency at the tranverter.  The K144RFLK  removes that problem,
because the root frequency reference will be the TCXO in the K3 (or
the K3EXREF source if you have a 10 MHz lab reference avaiable).

73,
matt W6NIA

On Sat, 08 Sep 2012 16:42:54 -0500, you wrote:

To: elecraft@mailman.qth.net
Subject: [Elecraft] K144XV ordering
From: SRD software.research.developm...@gmail.com
Date: Sat, 08 Sep 2012 16:42:54 -0500

Hi,

I'd like to make sure I've got this complete (always did hate the
order page). I have a K3/100 and wanting to add 2M's. Please correct
me if I'm wrong, but what follows is my understanding of whats
required.

- K144XV-K Internal 2M 10w Module Kit
- Check the K3/100 below it
- KXV3A RX Ant., IF Out and Xverter Interface
- A KXUSB interface cable will also be shipped w/ this.

I didn't leave anything out thats required? And the K144RFLK, just
how recommended is this?

Much appreciated.
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[Elecraft] K144XV (Urgent)

[Vic Goncharsky]

Today K144XV safely arrived from FAIRS Hq., Floyd VA

The European 144 MHz championship is held this weekend.
Started to install the module and found no IF connectors on my KXV3-1 (2008) 
board.
Can someone let me know where to go next and connect the IF?
Really hate missing the major annual VHF contest. Do I need to buy a new KXV3A 
board or it can be replaced?
So sorry, so sad
73 Vic US5WE
UARL VHF committee
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Re: [Elecraft] K144XV (Urgent)

[Scott Manthe]

If you're trying to install it internally, you'll need the KXV3A.

73,
Scott, N9AA


On 8/30/12 1:20 PM, Vic Goncharsky wrote:
 Today K144XV safely arrived from FAIRS Hq., Floyd VA

 The European 144 MHz championship is held this weekend.
 Started to install the module and found no IF connectors on my KXV3-1 (2008) 
 board.
 Can someone let me know where to go next and connect the IF?
 Really hate missing the major annual VHF contest. Do I need to buy a new 
 KXV3A board or it can be replaced?
 So sorry, so sad
 73 Vic US5WE
 UARL VHF committee
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Re: [Elecraft] K144XV (Urgent)

[Don Wilhelm]

Vic,

The K144XV is the internal transverter, and you must have the KXV3A to 
connect it.
If you call right now and beg them to ship it overnight, you may have it 
in time for the weekend.

73,
Don W3FPR

On 8/30/2012 1:20 PM, Vic Goncharsky wrote:
 Today K144XV safely arrived from FAIRS Hq., Floyd VA

 The European 144 MHz championship is held this weekend.
 Started to install the module and found no IF connectors on my KXV3-1 (2008) 
 board.
 Can someone let me know where to go next and connect the IF?
 Really hate missing the major annual VHF contest. Do I need to buy a new 
 KXV3A board or it can be replaced?
 So sorry, so sad
 73 Vic US5WE
 UARL VHF committee


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