[Elecraft] K3 internal SWR meter

[Jörg Rüschenschmidt]

Richard,

If I use a dummy load or perfect tuned antenna (SWR 1:1.1) the problem is not recognized. 

I think SWR measurement will  done in KAT3 if this unit is installed, even in bypass mode. Maybe this issue is related to users with KAT3 only.  Don, W3FPR assumes it could be a software problem. Let's wait for someone who knows how SWR measurement is done in K3 firmware.

73 de Joerg (DL3QQ)

 
-----Ursprüngliche Nachricht-----
Von: Richard Fjeld [mailto:rpfjeld at embarqmail.com] 
Gesendet: Montag, 23. September 2013 18:54
An: Jörg Rüschenschmidt
Cc: elecraft at mailman.qth.net
Betreff: Re: [Elecraft] K3 internal SWR meter

Joerg,

FWIW, I do not have the KAT3 yet, and I have no SWR troubles with the meter. 

Also FWIW, I wonder how your meter will behave into a known good dummy load? 


Dick,n0ce


----- Original Message -----
From: "Jörg Rüschenschmidt" <dl3qq at rrdxa.eu>
To: elecraft at mailman.qth.net
Sent: Sunday, September 22, 2013 2:17:12 PM
Subject: [Elecraft] K3 internal SWR meter

Hello all,

 

this weekend I tested my new K3 transceiver received last week. TRX is a factory build version with 100 watt, KAT3 tuner, KXV3A and KDVR3. I use a Elecraft MH-2 microphone. While testing I recognized strange internal SWR meter behavior during SSB operation. The internal SWR bar meter shows wrong SWR if KAT3 is set to bypass. It shows spikes up to SWR 1:3 but my real SWR is about 1:1.5. only. If I press tune button correct SWR is shown on SWR bar meter and in digits on display. Also in CW mode correct values are shown. I am afraid K3 will drop SSB power if SWR bar meter shows SWR of 3.

 

Is this a known issue ?

 

Regards …

 

Joerg (DL3QQ)