Re: [Elecraft] W2 directional coupler

[Larry Shapiro]

I might..
Will look when I get home on Friday,
Larry k6ro

www.LSRarecoins.com
310-710-2869

> On Aug 16, 2022, at 3:28 PM, Ronnie Hull  wrote:
> 
> Anyone have a E850370 Directional Coupler for 144/450 mhz they will part 
> with?
> Please let me know if you do
> 
> Thanks and 73
> 
> Ron W5SUM
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[Elecraft] KPA1500 Devices

[eric norris via Elecraft]

Does anyone know what devices are used in the KPA1500 PA?  Idle curiosity.  
Thanks,

73, Eric WD6DBM

 
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Re: [Elecraft] K4 remote software progress

[Wayne Burdick]

Hi Magnus,

I can't put a date on full remote control yet, but I can tell you that the 
entire team is working on it. 

We recently completed two important pieces of the implementation -- streaming 
panadapter data protocol, and internal audio streaming paths. (The latter was 
needed both for remote and for the DVR (RX and TX. DVR for TX came out some 
time ago, but we're now almost finished with DVR for RX.) 

What's left is audio streaming support and radio-to-radio meta level control 
protocol. We'll post periodic progress reports.

73,
Wayne
N6KR



> On Aug 16, 2022, at 5:01 AM, Magnus Danielson via Elecraft 
>  wrote:
> 
> Hi all,
> 
> I am wondering about the K4 remote software progress. I just do not seem to 
> find anything.
> 
> At the same time I want to make sure there is good and robust methods doing 
> it. There is both the HTTP/3 and RIST methods, both public standards and 
> already tested and available in open source. They also carry with them 
> suitable secure methods to be used. I used to sit on the RIST committee and 
> my company even payed for the RIST implementation within FFMPEG.
> 
> The two methods have different benefits. We've already made a test 
> implementation for remote operation over existing HTTP/3 just within a 
> browser Window.
> 
> Anyway, already a Linux remote would work well. As alrways preferably 
> packaged as Debian packages.
> 
> Cheers,
> Magnus
> 
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[Elecraft] Diagnosing Serial Port Issue

[Pete Smith N4ZR]

My station took a lightning hit a couple of weeks ago, and I have just 
finished configuring a new computer with my old C drive.  That all works 
fine, but for some reason I'm not able to get COM port communication 
between N1MM Logger and my K3.  I'm using a USB-to-serial cable.  When I 
open the Config menu, I see COM 11 with an asterisk indicating that it 
doesn't exist, and COM1 as another option.This seems odd because my 
setup used COM3 for radio and COM6 for CW keying before the event.


I'm at a loss about how to diagnose the problem.  It could be the IO 
board in the K3, I suppose (shudder) or the RS232 to USB adapter cable. 
I can just buy another cable, to rule that out, but is there a way to 
run a self-test on the K3 IO to see if it is damaged?


As an aside, I have had a KIO3B on order for +/- 2 years, but I don't 
know when or if that's going to happen. The radio seems otherwise to be 
fine; I've tested its sensitivity and power output on several bands. I 
just want to try to dig myself out of this before CQWW and SS.


--
73, Pete N4ZR
Check out the new Reverse Beacon Network
web server at .
For spots, please use your favorite
"retail" DX cluster.

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[Elecraft] W2 directional coupler

[Ronnie Hull]

Anyone have a E850370 Directional Coupler for 144/450 mhz they will part with?
Please let me know if you do

Thanks and 73

Ron W5SUM
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[Elecraft] KPA500 Parts

[Dr. William J. Schmidt]

The latest revision of the schematic for the KPA500 TR Switch shows a Zener
diode at the gate of Q4 in place of R3, the 100K resistor previously.  Its
obviously for gate protection.  There are no markings on the schematic what
this diode is although the spec sheet for the IRFSL9N60APBE does say the
gate-source threshold is maximum of 4V.  Anyone know what the value of this
thing is before I just stuff in a 4v Zener?

 

 

Dr. William J. Schmidt - K9HZ J68HZ

 

 

 

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[Elecraft] K4 remote software progress

[Magnus Danielson via Elecraft]

Hi all,

I am wondering about the K4 remote software progress. I just do not seem 
to find anything.


At the same time I want to make sure there is good and robust methods 
doing it. There is both the HTTP/3 and RIST methods, both public 
standards and already tested and available in open source. They also 
carry with them suitable secure methods to be used. I used to sit on the 
RIST committee and my company even payed for the RIST implementation 
within FFMPEG.


The two methods have different benefits. We've already made a test 
implementation for remote operation over existing HTTP/3 just within a 
browser Window.


Anyway, already a Linux remote would work well. As alrways preferably 
packaged as Debian packages.


Cheers,
Magnus

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