Re: [Elecraft] KX2 in FT8 mode - heat? (Barry N1EU

[Wayne Burdick]

FWIW, the drift is proportional to frequency, so you should be seeing < 3 Hz on 
20 meters. 

It’s < 2 Hz on my lab test unit on 20.

Wayne
N6KR



http://www.elecraft.com

> On Nov 24, 2017, at 4:23 PM, Edward R Cole  wrote:
> 
> I ran intensive frequency stability tests on my KX3 in 2014 after getting it. 
>  Adding a VE3FMN heat sink and running the temp-compensation procedure 
> maximum drift running JT65 on 6m showed +13-Hz drift in the first minute; no 
> more than 10-Hz afterward.  That is good enough for JT65 (but not sure what 
> WSPR or FT8 require).  Before installing the heat sink drift was 54-Hz before 
> temp comp.
> http://www.kl7uw.com/KX3.htm
> 
> 73, Ed - KL7UW
>  http://www.kl7uw.com
> Dubus-NA Business mail:
>  dubus...@gmail.com 
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Re: [Elecraft] KX3 clock will not set from KX3 utility

[rich hurd WC3T]

Page 251 in the Fred Cady book does say it in the menu description for the
TIME function.  "A battery must be in the KXBC3 to maintain the time if the
external power supply is disconnected or turned off."



---
72,
Rich Hurd / WC3T / DMR: 3142737
PA Army MARS, Northampton County RACES, EPA-ARRL Public Information Officer
for Scouting
Latitude: 40.761621 Longitude: -75.288988  (40°45.68' N 75°17.33' W) Grid:
*FN20is*


On Thu, Nov 23, 2017 at 11:38 AM, Eugene Worth  wrote:

> OK, folks, I’ll admit to this being a “dummy load” error. However, I have
> searched the archives and can’t find a satisfactory answer.
>
> I have a KX3, SN 70xx. I installed the internal battery option more than a
> year ago, however, I moved across country in July and haven’t connected the
> KX3 up to power until today. All NiMH internal batteries were removed in
> July and have not been reinstalled.
>
> I updated all of the firmware to the KX3 today. Went smashingly well. When
> I attempted to reset the internal clock on the KX3, I see 45.85.85 on the
> display with the last ‘5’ blinking slowly. Doesn’t matter whether UTC or
> Local time, same display.
>
> I’m assuming it is b/c that board has no battery backup, hence cannot be
> updated.
>
> I’m just asking to make sure that there isn’t another problem. I really
> don’t use the clock function that much when I operate.
>
> And, PS, Fred Cady’s encyclopedia on the KX3 doesn’t address this either.
>
> Thanks in advance.
>
> gene
> WG7GW
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Re: [Elecraft] KX3 clock will not set from KX3 utility

[Nr4c]

No battery, no clocky. It has to have power. 

Sent from my iPhone
...nr4c. bill


> On Nov 23, 2017, at 11:38 AM, Eugene Worth  wrote:
> 
> OK, folks, I’ll admit to this being a “dummy load” error. However, I have 
> searched the archives and can’t find a satisfactory answer.
> 
> I have a KX3, SN 70xx. I installed the internal battery option more than a 
> year ago, however, I moved across country in July and haven’t connected the 
> KX3 up to power until today. All NiMH internal batteries were removed in July 
> and have not been reinstalled. 
> 
> I updated all of the firmware to the KX3 today. Went smashingly well. When I 
> attempted to reset the internal clock on the KX3, I see 45.85.85 on the 
> display with the last ‘5’ blinking slowly. Doesn’t matter whether UTC or 
> Local time, same display. 
> 
> I’m assuming it is b/c that board has no battery backup, hence cannot be 
> updated. 
> 
> I’m just asking to make sure that there isn’t another problem. I really don’t 
> use the clock function that much when I operate. 
> 
> And, PS, Fred Cady’s encyclopedia on the KX3 doesn’t address this either. 
> 
> Thanks in advance.
> 
> gene
> WG7GW 
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Re: [Elecraft] (OT) - Unplanned Discovery - UPDATE

[stan levandowski]

Howard, I received the core and the replacement choke earlier today.


I put the core on the 25' RG174 feedline right at the 9:1 UNUN and was 
able to wind 10 turns.  Then I connected a 33' counterpoise wire to the 
output BNC using a hose clamp.  This was just a quickie "temporary" 
installation as it was getting dark here in NY.



With no other changes made, I tried tuning up on 80, 40, 30 and 20 with 
my K2/10 and its internal KAT2 tuner.



My 80 meter SWR which had been 1.1:1 was now an unusable 2.8:1.  This 
makes sense to me if the choke was now keeping the common mode currents 
from using "everything" connected to the K2!!  I would EXPECT 80 meters 
to have a high SWR for a 33' wire and it did!  My 40 meter SWR went from 
1.2:1 to 1:1.  My 30 meter SWR went from 1.7:1 to 1:1 and my 20 meter 
SWR went from 1.1:1 to 1:1.  I was only able to make one quick contact 
but that was a pretty good one - Corsica - on 20M QRP.



Then I put the new choke you sent me on the DC cable IN ADDITION to the 
cracked one that I already had on.  I detected NO NOISE at this point.  
Switching back and forth from battery to Kx33 did NOT change the noise 
level.



Of course, I'm going to keep experimenting through radial placement, 
elevation and number of radials but for now, it looks like you solved my 
"noise problem."



That's a nifty sized little Kx33 power supply you sell and I'm glad I 
didn't give up on it.  I'm very pleased with the personal support you 
provided to me.



Well, the CQWW starts in 15 minutes and I'm looking forward to a 'no 
noise' weekend!



73, Stan WB2LQF


On Tue, Nov 21, 2017 at 03:07 PM, i...@proaudioeng.com wrote:


Hi Stan,

That is great news regarding the antenna being outside, it is my
  experience and that of many customers that a common-mode (CM)
  choke at the feedpoint of an end-fed outside is highly effective
  at decoupling the feedline as part of the active antenna.



In my opinion, and those of another expert in the field Jim
  Brown, it is money wasted purchasing a CM choke.  If you had not
  taken a look at his excellent paper on the subject here is the
  link: http://audiosystemsgroup.com/RFI-Ham.pdf 



Before I was able to measure the performance of chokes I had
  purchased both a W2DU and  DX Engineering choke myself, and
  thought they worked OK, but had no way to tell.  Once I started
  merely winding coax on mix 31 ferrites, I noticed they worked
  better than the ones I bought, and the cores are cheap.  I ended
  up selling the DX Engineering unit and in it's place I have two
  2.4" mix 31 cores stacked (for higher power handling) with 8 
turns

  of RG-8X, and it is superior.  Here is a chart showing how
  effective winding as many as 6-14 turns around that core can be, 
I

  suggest 8-10 turns depending on the size of coax you are using:



I will send you a replacement for the small choke which broke in
  shipment, I am sorry for that.  I will also send you a 2.4"
  diameter mix 31 toroid core so you can make your own CM choke at
  the feedpoint.  The core is weatherproof, so don't worry about it
  getting wet.  I look forward to getting reports from you as to 
the

  progress taming this CM noise pickup, and thank you for your
  patience!  Ease of choking CM RFI is the real advantage to the
  Kx33 you purchased relative to other switchers, it is a
  characteristic we worked hard to engineer into the supply.



Cheers & 73,

Howie - WA4PSC






  On 11/21/2017 2:30 PM, stan levandowski wrote:





Howard, thank you for the info
and the offer.  


 


YES, I would love to have a new
ferrite.  The one that was shipped was neatly cracked in half! 
I used it anyway; didn't figure it mattered that much as the
mass was still there.






And YES, I am going to install
additional counterpoises right at the 9:1 UNUN and spread them
out.  The antenna is not in the attic, it is outside as a 
sloper
from the rear of my townhouse up to the top of a 35' pine 
tree. 

It's working great so far.  Worked Paraguay last night on 20M
and Belgium this morning also on 20M.  K2@5 watts. 






Do you have a recommendation for
an effective choke at the UNUN?  Beads, a coax choke, something
from DX Engineering like their 1:1 isolator??  






Thanks and 73, Stan WB2LQF





On Tue, Nov 21, 2017 at 01:28 PM, i...@proaudioeng.com 
  wrote:






Hi Stan,

Thank you for the reply!  Regarding antennas; I feel your
pain!  I have had to endure less-than-optimum antenna 
setups

many times as well.

One of the aspects of common-mode currents is they are
reciprocal between transmit and receive.  In transmit they
cause feedline radiation and a radiation pattern which is

Re: [Elecraft] KX2 in FT8 mode - heat? (Barry N1EU

[Edward R Cole]

I ran intensive frequency stability tests on my KX3 in 2014 after 
getting it.  Adding a VE3FMN heat sink and running the 
temp-compensation procedure maximum drift running JT65 on 6m showed 
+13-Hz drift in the first minute; no more than 10-Hz afterward.  That 
is good enough for JT65 (but not sure what WSPR or FT8 
require).  Before installing the heat sink drift was 54-Hz before temp comp.

http://www.kl7uw.com/KX3.htm

73, Ed - KL7UW
  http://www.kl7uw.com
Dubus-NA Business mail:
  dubus...@gmail.com 


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Re: [Elecraft] Info on K3S packages

[G4GNX]

Thanks Howard and Don.

That's all the info I need to make an immediate order.

73,

Alan. G4GNX

-Original Message- 
From: Howard Stephenson 
Sent: Friday, November 24, 2017 10:49 PM 
To: elecraft@mailman.qth.net 
Subject: Re: [Elecraft] Info on K3S packages 


Hi Alan,

The K3S and the later SN  K3's came with the K144XV stiffener bar.
Please review the K3S FAQ for what options can be moved from a K3 to a K3S


73,
Howard Stephenson  K6IA

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[Elecraft] DXE NCC-2 & K3/K3s

[Gary Smith]

Does anyone have the DXE NCC-2 connected 
to their K3/K3s? I have a question as to 
how you have it set up. 

Thanks & 73,

Gary
KA1J
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Re: [Elecraft] XV432

[Ken Alexander]

Just sold mine today.  I guess I could have asked for a lot more for it but I'm 
not the opportunistic type. 
73,
KenVE3HLS

Sent from Yahoo Mail on Android

 
 
  On Fri, 24 Nov 2017 at 18:18, David Ferrington, M0XDF 
wrote:   That’s a shame, that was going to be a purchase next year. Did 
Elecraft discontinue this because it wasn’t selling?

Anyone got one they want to sell?

-73 de M0XDF (from my iPhone)

> On 24 Nov 2017, at 22:18, Don Wilhelm  wrote:
> 
> David,
> 
> Yes, the XV432 has been discontinued.
> 
> 73,
> Don W3FPR
> 
>> On 11/24/2017 5:09 PM, David Ferrington, M0XDF wrote:
>> Just looking at Elecraft's order page - no they no long manufacture the 
>> XV432?

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Re: [Elecraft] XV432

[David Ferrington, M0XDF]

That’s a shame, that was going to be a purchase next year. Did Elecraft 
discontinue this because it wasn’t selling?

Anyone got one they want to sell?

-73 de M0XDF (from my iPhone)

> On 24 Nov 2017, at 22:18, Don Wilhelm  wrote:
> 
> David,
> 
> Yes, the XV432 has been discontinued.
> 
> 73,
> Don W3FPR
> 
>> On 11/24/2017 5:09 PM, David Ferrington, M0XDF wrote:
>> Just looking at Elecraft's order page - no they no long manufacture the 
>> XV432?

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Re: [Elecraft] Info on K3S packages

[Howard Stephenson]

Hi Alan,

The K3S and the later SN  K3's came with the K144XV stiffener bar.
Please review the K3S FAQ for what options can be moved from a K3 to a K3S


73,
Howard Stephenson  K6IA

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Re: [Elecraft] New to QRP

[marvwheeler]

It has been interesting to read the responses to my post about being new to
QRP. I have been reminded that one of the magnificent things about our hobby
is that it has something to interest almost everyone. If you like digital,
fine, if you like slow can tv, fine; if you like ssb, fine; if you don't
have time for QRP, that is fine also. All of us can't have stacked
monobander for 40 through 6 meters even though it might be nice to dream but
during all of my 50 years as an amateur I always felt that if you need an
antenna, put it up. I might not be conventional in the estimation of some
one else but some wire is better than no wire. Don't be constrained by the
"I don't have room" or "I can't". Where there is a will there is a way.

 

That is my reason for a vertical and qrp. I have found I can have fun with
that combination and that is what the hobby is all about.

 

73 and thanks for all the comments.

 

KG7V  cu in CQWW this weekend.

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Re: [Elecraft] Info on K3S packages

[Don Wilhelm]

Alan,

Yes, the K3S had the IF Output as standard from the beginning.

73,
Don W3FPR

On 11/24/2017 4:34 PM, G4GNX wrote:

Thanks to all who pointed out the national holiday. Having worked in the
USA years ago, I should have realised.

Thanks also to those who sent info and to Don for the link.

It's now clear that the major difference between the two packages is the
auto-tuner which is not present with the "Individual" package. I now
need to decide whether I could just use my existing KAT500 or whether I
need the internal tuner to make the K3S easily portable.

Don, are all models of K3S provided with the means to connect a P3?
Also, the back-panel images show a (covered) hole to mount the BNC
connector for the K144XV transverter, so I presume that I can move all
of the filters and the K144XV from my current K3 to the new K3S without
needing to swap any rear panel hardware, just the modified K144XV
strengthener bar?

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Re: [Elecraft] XV432

[Don Wilhelm]

David,

Yes, the XV432 has been discontinued.

73,
Don W3FPR

On 11/24/2017 5:09 PM, David Ferrington, M0XDF wrote:

Just looking at Elecraft's order page - no they no long manufacture the XV432?

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[Elecraft] XV432

[David Ferrington, M0XDF]

Just looking at Elecraft's order page - no they no long manufacture the XV432?
73 de David, M0XDF (K3 #174, P3 #108)
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Re: [Elecraft] Info on K3S packages

[G4GNX]

Thanks to all who pointed out the national holiday. Having worked in the USA 
years ago, I should have realised.


Thanks also to those who sent info and to Don for the link.

It's now clear that the major difference between the two packages is the 
auto-tuner which is not present with the "Individual" package. I now need to 
decide whether I could just use my existing KAT500 or whether I need the 
internal tuner to make the K3S easily portable.


Don, are all models of K3S provided with the means to connect a P3? Also, 
the back-panel images show a (covered) hole to mount the BNC connector for 
the K144XV transverter, so I presume that I can move all of the filters and 
the K144XV from my current K3 to the new K3S without needing to swap any 
rear panel hardware, just the modified K144XV strengthener bar?


73,

Alan. G4GNX

-Original Message- 
From: Don Wilhelm

Sent: Friday, November 24, 2017 7:41 PM
To: G4GNX ; Elecraft Reflector
Subject: Re: [Elecraft] Info on K3S packages



Alan,

Go to http://www.elecraft.com/K3/K3.htm and you can see the contents of
each package listed.

73,
Don W3FPR

On 11/24/2017 12:32 PM, G4GNX wrote:

Been trying to phone Elecraft, but keep getting "All of our team is
busy." message.

Looking at the Elecraft website, can someone please tell me what the
difference is between the K3S/100 Casual User Package and the K3S/100-K
+ Free MH4 Mic, as there's a considerable difference in price? 


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Re: [Elecraft] RF feedback problems with P3 and external keyboard

[G4GNX]

I haven't connected a keyboard to my P3 yet, but I have had issues with the 
shack PC.


It's been fine on 160m thru 20m but I had issues above 20m when I changed 
keyboards. As the original keyboard that I used was OK re-connected it and 
forgot about it.


Last Wednesday with the original keyboard connected, I was on 20 metres when 
the lights on the keyboard went off and there was no output to the PC. I 
found the cure was to use a large Type 31 ferrite ring and wind 4 turns of 
the keyboard USB cord onto it, right close to the USB connector at the PC 
end.


Perhaps this will help you with your P3 issue.

73,

Alan. G4GNX

-Original Message- 
From: ANDY NEHAN

Sent: Friday, November 24, 2017 8:34 PM
To: elecraft@mailman.qth.net
Subject: [Elecraft] RF feedback problems with P3 and external keyboard

After LOTS of experimentation I think I have found that just recently I have 
some RF feedback into the usb keyboard on the rear of the P3. This manifests 
itself particularly badly with the Genovation keyboard but is also present 
with a standard usb keyboard. Oddly enough it is MUCH worse when using the 
Perwerx psu than my linear psu - but that may of course be due to different 
cable layout for the power cables. I have applied clip on ferrites with 
great enthusiasm but to no avail.
I noticed a message on my external vga screen saying "usb device removed" 
shortly after starting to transmit and then shortly after that (but whilst 
still transmitting) "usb device connected". This is also not present when on 
low power (say 5 watts) but reappears at 20 watts.

Has anyone else experienced this problem??
Andy

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Re: [Elecraft] Info on K3S packages

[Cady, Fred]

Hi again,

I think the casual user package includes the ATU but the K3S/100-K doesn't.  
That would account for $379.95.

Fred, KE7X


From: elecraft-boun...@mailman.qth.net  on 
behalf of G4GNX 
Sent: Friday, November 24, 2017 10:32 AM
To: Elecraft Reflector
Subject: [Elecraft] Info on K3S packages

Been trying to phone Elecraft, but keep getting "All of our team is
busy." message.

Looking at the Elecraft website, can someone please tell me what the
difference is between the K3S/100 Casual User Package and the K3S/100-K +
Free MH4 Mic, as there's a considerable difference in price?

I realise that the Casual User Package is Factory Built, so that would
account for part of the difference, but not all.


73,

Alan. G4GNX


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[Elecraft] RF feedback problems with P3 and external keyboard

[ANDY NEHAN]

After LOTS of experimentation I think I have found that just recently I have 
some RF feedback into the usb keyboard on the rear of the P3. This manifests 
itself particularly badly with the Genovation keyboard but is also present with 
a standard usb keyboard. Oddly enough it is MUCH worse when using the Perwerx 
psu than my linear psu - but that may of course be due to different cable 
layout for the power cables. I have applied clip on ferrites with great 
enthusiasm but to no avail. 
I noticed a message on my external vga screen saying "usb device removed" 
shortly after starting to transmit and then shortly after that (but whilst 
still transmitting) "usb device connected". This is also not present when on 
low power (say 5 watts) but reappears at 20 watts.
Has anyone else experienced this problem??
Andy
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Re: [Elecraft] Info on K3S packages

[Cady, Fred]

Hi Alan,

I think Eric sent a message saying the whole Elecraft crew was going to take 
the weekend off and that they would be back on Monday.

Cheers,

Fred KE7X



From: elecraft-boun...@mailman.qth.net  on 
behalf of G4GNX 
Sent: Friday, November 24, 2017 10:32 AM
To: Elecraft Reflector
Subject: [Elecraft] Info on K3S packages

Been trying to phone Elecraft, but keep getting "All of our team is
busy." message.

Looking at the Elecraft website, can someone please tell me what the
difference is between the K3S/100 Casual User Package and the K3S/100-K +
Free MH4 Mic, as there's a considerable difference in price?

I realise that the Casual User Package is Factory Built, so that would
account for part of the difference, but not all.


73,

Alan. G4GNX


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Re: [Elecraft] Diversity / aux RX problem

[Cady, Fred]

Hi Tony,

As Don indicates, you have two choices for what antenna input the sub rx is 
connected to when you built it.


"The Sub receiver's antenna can be connected to the ATU or to the auxiliary RF 
input.


When you install your Sub receiver you must chose an antenna configuration and 
then physically connect a TMP cable inside the K3S from the Sub receiver's J92 
antenna input to one of two places.  First, you can connect the receiver to the 
K3S ATU, which allows the Sub receiver to share the same antenna the Main 
receiver is using (ANT 1, ANT 2, or RX ANT IN).  You may also choose to have 
the Sub receiver use whichever antenna the Main receiver is NOT using (ANT 2 if 
Main is using ANT 1, or vice versa).  You must set CONFIG:KRX3 Ant=Atu for this 
option.  This may be your best choice for all around operating with a variety 
of antennas.


The second choice is to connect the receiver to a separate auxiliary RF BNC 
antenna connector.  In this case, the Sub receiver can share an antenna with 
the Main or it can use a different antenna connected to the AUX RF BNC.  Set 
CONFIG:KRX3 Ant=bnc if you choose this option.  This may be your best choice 
for diversity receiver operation with specialized receive antennas.
A factory assembled K3S with KRX3 Sub receiver is delivered with its antenna 
connected to the AUX RF BNC (CONFIG:KRX3 Ant=bnc).  Changing to KRX3 Ant=Atu 
will require you to open the K3S case and move a TMP cable from the BNC to the 
ATU.  Refer to your KRX3 assembly manual for detailed instructions."

With your antennas both being potential transmit antennas, I would recommend 
the first option.


Cheers,

Fred KE7X


For info on all KE7X Elecraft books, see www.ke7x.com.


From: elecraft-boun...@mailman.qth.net  on 
behalf of Don Wilhelm 
Sent: Friday, November 24, 2017 12:54 PM
To: Tony G6GLP; elecraft@mailman.qth.net
Subject: Re: [Elecraft] Diversity / aux RX problem


Tony,

Where is your subRX antenna AUX input connected?  To the BNC jack below
the 2 SO-239s or to the non-transmit antenna?

Once you know that, use BSET to changel the subRX input to AUX

If you do not know which antenna connector is connected to the SubRX AUX
input, you can find out physically by removing the top cover and
following the TMP cable.  If it is connected to the KAT3 then it is the
non-transmit antenna, but if connected to the BNC jack, then that is the
jack that is connected.
You might be able to determine it without removing the top cover - just
set the subRX to use the AUX input and plug the antenna into each jack
one at a time.  When you hear band noise or signals, that is the one
connected.

73,
Don W3FPR

On 11/24/2017 12:37 PM, Tony G6GLP wrote:
> Hi Guys,
>
> I built my K3 a couple of years ago complete with second RX. Until now I
> have only used the ANT 1 and ANT 2  inputs but thought I would try some
> diversity. Having an inv L mainly set for top band and  40m dipole I
> thought I might move the 40m dipole to the RX AUX port and listen to the
> diversity system.
>
> Now no matter how I play / switch things the RX AUX port sound is dead.
> I know the antenna is good because I can plug it into the unused ANT
> port and rx on both the INV L and dipole with slightly different
> reception. putting the set into diversity holding the SUB button for a
> couple of sec shows diversity and the rx goes stereo in the headphones.
> What I dont get is the sub channel audio no matter what I do with the RX
> ANT switch. Just for completeness I can rx two things one on vfo A and
> another on vfo B in contests etc.
>
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Re: [Elecraft] Diversity / aux RX problem

[Don Wilhelm]

Tony,

Where is your subRX antenna AUX input connected?  To the BNC jack below 
the 2 SO-239s or to the non-transmit antenna?


Once you know that, use BSET to changel the subRX input to AUX

If you do not know which antenna connector is connected to the SubRX AUX 
input, you can find out physically by removing the top cover and 
following the TMP cable.  If it is connected to the KAT3 then it is the 
non-transmit antenna, but if connected to the BNC jack, then that is the 
jack that is connected.
You might be able to determine it without removing the top cover - just 
set the subRX to use the AUX input and plug the antenna into each jack 
one at a time.  When you hear band noise or signals, that is the one 
connected.


73,
Don W3FPR

On 11/24/2017 12:37 PM, Tony G6GLP wrote:

Hi Guys,

I built my K3 a couple of years ago complete with second RX. Until now I
have only used the ANT 1 and ANT 2  inputs but thought I would try some
diversity. Having an inv L mainly set for top band and  40m dipole I
thought I might move the 40m dipole to the RX AUX port and listen to the
diversity system.

Now no matter how I play / switch things the RX AUX port sound is dead.
I know the antenna is good because I can plug it into the unused ANT
port and rx on both the INV L and dipole with slightly different
reception. putting the set into diversity holding the SUB button for a
couple of sec shows diversity and the rx goes stereo in the headphones.
What I dont get is the sub channel audio no matter what I do with the RX
ANT switch. Just for completeness I can rx two things one on vfo A and
another on vfo B in contests etc.


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Re: [Elecraft] Info on K3S packages

[Don Wilhelm]

Alan,

Go to http://www.elecraft.com/K3/K3.htm and you can see the contents of 
each package listed.


73,
Don W3FPR

On 11/24/2017 12:32 PM, G4GNX wrote:

Been trying to phone Elecraft, but keep getting "All of our team is
busy." message.

Looking at the Elecraft website, can someone please tell me what the
difference is between the K3S/100 Casual User Package and the K3S/100-K
+ Free MH4 Mic, as there's a considerable difference in price?

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[Elecraft] XV-432 Sold

[Ken Alexander]

The XV-432 transverter has been sold.  All other listed items are still 
available.
Thanks and 73,
KenVE3HLS
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[Elecraft] Diversity / aux RX problem

[Tony G6GLP]

Hi Guys,

I built my K3 a couple of years ago complete with second RX. Until now I 
have only used the ANT 1 and ANT 2  inputs but thought I would try some 
diversity. Having an inv L mainly set for top band and  40m dipole I 
thought I might move the 40m dipole to the RX AUX port and listen to the 
diversity system.


Now no matter how I play / switch things the RX AUX port sound is dead. 
I know the antenna is good because I can plug it into the unused ANT 
port and rx on both the INV L and dipole with slightly different 
reception. putting the set into diversity holding the SUB button for a 
couple of sec shows diversity and the rx goes stereo in the headphones. 
What I dont get is the sub channel audio no matter what I do with the RX 
ANT switch. Just for completeness I can rx two things one on vfo A and 
another on vfo B in contests etc.


Am I doing something wrong or do I have a hardware fault or event a 
build issue from the start.  I should be able to set with just one 
antenna in the RX port and get at least one channel working but this is 
a failure. Any suggestions?



73 de Tony G6GLP


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Re: [Elecraft] FLDIGI on Raspberry Pi PTT issue with the K2

[Dave B via Elecraft]

On 22/11/17 23:27, elecraft-requ...@mailman.qth.net wrote:
> Date: Tue, 21 Nov 2017 21:54:31 -0500
> From: "Elmore's" 
> To: 
> Subject: [Elecraft] FLDIGI on Raspberry Pi PTT issue with the K2
> Message-ID: 
> Content-Type: text/plain; charset="utf-8"
>
> Please carefully read everything that follows to avoid repetition of the 
> steps followed. What I have summarized here is the result of MANY hours of 
> work and extensive troubleshooting time via email with 2 incredibly helpful 
> and patient hams.
>
> I have an RPi 3 with FLDIGI and WSJT-X installed.
>
> After MUCH effort over the past 6 months I have WSJT-X working. My problem 
> now is that the PTT on the FLDIGI does not work.
>
> The PTT on the WSJT-X does work. It's underlying rig control is Hamlib. I am 
> using the Elecraft USB to serial adapter connected to the proprietary K2 
> serial cable.
>
> Note that I have successfully used the K2 with a Windows PC running FLDIGI 
> and WSJT-X for some time.
>
> I have configured FLDIGI for RigCAT. It communicates with the K2 (frequency, 
> mode, filter selection) but no PTT.
>
> I have also tried Hamlib but it will not initialize.
>
> During an extensive troubleshooting process over the past 3 weeks with a ham 
> on the Yahoo FLDIGI RPi group I tried FLRIG. It is fully functional with the 
> K2 but when I try using it with FLDIGI nothing works ? no frequency control, 
> no PTT, nothing! By this I mean that I am trying to use FLDIGI for the 
> control. I have verified that I have all the correct settings in both FLDIGI 
> and FLRIG with the ham that has been helping me. As a sanity check I 
> installed FLRIG on my Windows machine and successfully ran FLDIGI there.
>
> Has anyone had similar issues?
>
> Thanks for any help.
>
> 73,
> Jim WA4YWM
>
>

What version Fldigi, Flrig and Hamlib?   Also, what exact OS on the Pi?

Did you build Fldigi/Flrig from sources, or pulled from a repository?  
Sadly, the repo' versions are often out of date.

The best place to ask for help, would be the LinuxHam list on Groups.io.
https://groups.io/g/linuxham

73.

    Dave G0WBX.



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[Elecraft] Info on K3S packages

[G4GNX]

Been trying to phone Elecraft, but keep getting "All of our team is 
busy." message.


Looking at the Elecraft website, can someone please tell me what the 
difference is between the K3S/100 Casual User Package and the K3S/100-K + 
Free MH4 Mic, as there's a considerable difference in price?


I realise that the Casual User Package is Factory Built, so that would 
account for part of the difference, but not all.



73,

Alan. G4GNX


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[Elecraft] GEMS Products Black Friday Sale

[Scott Bastian]

Please use the code SOTA at GEMSProducts.com for 10%off good today and 
Satruday!  73 Scott AK6Q
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Re: [Elecraft] (OT) - Unplanned Discovery

[Wes Stewart]

I don't RV anymore but when I did my 5th wheel came with a charger made by Todd 
Engineering, fortunately now out of business.  It was simply awful in terms of 
RFI.  In the analog TV days the RV parked outside the garage would interfere 
with low-band TV.


I replaced it with one made by a local company, IOTA Engineering. 
https://iotaengineering.com/power.htm  I found it to be very quiet.  (Although I 
once moonlighted at another company founded by the same guys as IOTA I have no 
association with this company other than as a satisfied customer).


Wes  N7WS


On 11/20/2017 7:54 AM, Gil Drynan wrote:

Just a note to comment on my experiences with RV 'converters'/battery
chargers. I've had to put an AC switch in the input line to disable the
"converters' noise.  That solved the problem but sometimes an adjacent RV
will provide me with noise.


Gil
W7GIL



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[Elecraft] new to qrp too

[Bill Heybruck]

I started QRP a couple years ago with the NAQCC Sprints and my 756PRO at 
5 w.


This year I bought a used K2/100 and use it all the time.

I check into my CW nets at 25w or less so not to interfere with the TV 
(my Uverse box sits next to the rig).


and for my morning SSB traaffic net I bump it up to 50!

of course I still run the sprints at 5.

am looking forward to the 160m sprint in January

Bill W4EDN

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Re: [Elecraft] MacOS High Sierra FTDI driver issue

[Fred Moore]

Bill, I am currently on High Sierra, RumlogNG is still operating just
fine on my KX3  I have not checked the utilities for the for the KX3, I
don't have a K3, the drivers don't know if this information helps or
not, drivers might be different... 

Regards.. Fred

Fred Moore
email: f...@fmeco.com
   wd8...@gmail.com
phone: 321-217-8699

On 11/23/17 4:09 PM, Bill Frantz wrote:
> I upgraded my computer to MacOS High Sierra and found it could not
> contact the K3. The K3 utility failed, RUMlogNG failed, and wsjt-x
> failed. I found the following by robertklep on the web:
>
> What seems to have worked for me is actually removing the FTDI driver
> (/Library/Extensions/FTDIUSBSerialDriver.kext), after finding that
> Apple ships an FTDI driver with the OS itself
> (/System/Library/Extensions/AppleUSBFTDI.kext).
>
> I moved the driver out of /Library/Extensions/FTDIUSBSerialDriver.kext
> and things started working again.
>
> 73 Bill AE6JV
>
> ---
> Bill Frantz    |Security, like correctness, is| Periwinkle
> (408)356-8506  |not an add-on feature. - Attr-| 16345 Englewood Ave
> www.pwpconsult.com |ibuted to Andrew Tanenbaum    | Los Gatos, CA 95032
>
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Re: [Elecraft] KX2 in FT8 mode - heat? (Barry N1EU)

[Robert Allbright]

I wonder how stable is the KX2 in digital modes?
My KX3 with the temperature compensation carried out was inadequate when
running wspr at 5 watts output.
However, this was before Elecraft introduced the improved heat sink.
Rob G3RCE

On Nov 24, 2017 13:23, "Howard Hoyt"  wrote:

> Hi Barry,
>
> While using the KX2 in just about any digital mode above 5 W or so, we
> found the PA temp will reach thermal limit fairly quickly, which is why
> Elecraft rates the KX2 at 5 W in digital modes, and why we came up with an
> improved cooling solution.  (commercial content) Many owners who wish to
> run more than 5 W in digital modes have purchased the Pro Audio Engineering
> Kx22 Heatsink, which allows for an average (band and ambient temp
> dependent) 200-250% increase in transmit time before thermal limiting kicks
> in.
>
> Cheers & 73,
>
> Howie - WA4PSC
> www.proaudioeng.com
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Re: [Elecraft] KX2 in FT8 mode - heat? (Barry N1EU)

[Howard Hoyt]

Hi Barry,

While using the KX2 in just about any digital mode above 5 W or so, we 
found the PA temp will reach thermal limit fairly quickly, which is why 
Elecraft rates the KX2 at 5 W in digital modes, and why we came up with 
an improved cooling solution.  (commercial content) Many owners who wish 
to run more than 5 W in digital modes have purchased the Pro Audio 
Engineering Kx22 Heatsink, which allows for an average (band and ambient 
temp dependent) 200-250% increase in transmit time before thermal 
limiting kicks in.


Cheers & 73,

Howie - WA4PSC
www.proaudioeng.com
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[Elecraft] Repeaters on 10m

[John Newgas]

There is certainly one 10m repeater in the UK -  GB3CJ in Northampton IO92NF . 
The details are Output frequency: 29.6400 MHz, Input Receive Frequency is 
29.5400 MHz CTSS Tone 77 Hz.

All UK ( analogue ) repeaters are required to a 1750Hz access tone; the use of 
CTSS tones is an option which is universal although I am bit unsure about 
digital repeaters where CTSS must be redundant.

Regretfully I can’t claim the prize for using GB3RC :-(

John N - G7LTQ/N2UYI



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