KAT Problems

[ANDY DURBIN]

" I still can't switch the KAT to ant 3 for 160m ??"

Don't assume you are doing anything wrong.  I have already reported (and Elecraft has confirmed) one KAT500 firmware defect that prevents selection of an enabled antenna.  Maybe you have found another case.   I'd suggest documenting exactly what you have done and sending that information and your current config file to Elecraft support.

73,
Andy, k3wyc





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[ANDY DURBIN]

"The KAT Utility Operate Tab follows the last RF Tx frequency. It does not follow the rig freq. But does not follow when Tx'ing on 40 or 160."

It seem rather unlikely to me that RF detection would fail in both the KAT500 and KPA500 and that both would fail only on the same two bands.   It seems more probable that neither is receiving a satisfactory RF signal on 160 m and 40 m.

I think what I would do is try to test the KAT500 and KPA500 separately:

Test 1 - Rig > KAT500>50 ohm dummy load.   Does the KAT500 track RF freq?

Test 2 - Rig>KPA500>50 ohm dummy load.   Does the KPA500 band track RF frequency?

If neither track 160 and 40 but do track other bands then I would look at the RF signal to check its frequency, amplitude, and spectral purity.     A dummy load, RF sampler,  and spectrum analyser would make this easy but I don't know what equipment you have available.

Is it possible that you have the rig in a cross band split configuration and you are not actually transmitting on 160 and 40?

73,
Andy, k3wyc



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[Bill Frantz]

A crude test for power output is to see if the dummy load gets warm/hot.

73 Bill AE6JV

On 6/2/19 at 3:15 PM, [hidden email] (Andy Durbin) wrote:

> If neither track 160 and 40 but do track other bands then I would look at the
> RF signal to check its frequency, amplitude, and spectral purity.     A dummy
> load, RF sampler,  and spectrum analyser would make this easy but I don't know
> what equipment you have available.
---------------------------------------------------------------------------
Bill Frantz        |"After all, if the conventional wisdom was working, the
408-356-8506       | rate of systems being compromised would be going down,
www.pwpconsult.com | wouldn't it?" -- Marcus Ranum

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[Nr4c]

Maybe this has been asked before, but, what antenna is selected on radio for 40 and 160 meters?  Is RF on these bands bypassing the KOA500/KAT500



Sent from my iPhone
...nr4c. bill

> On Jun 2, 2019, at 8:16 PM, Bill Frantz <[hidden email]> wrote:
>
> A crude test for power output is to see if the dummy load gets warm/hot.
>
> 73 Bill AE6JV
>
>> On 6/2/19 at 3:15 PM, [hidden email] (Andy Durbin) wrote:
>>
>> If neither track 160 and 40 but do track other bands then I would look at the
>> RF signal to check its frequency, amplitude, and spectral purity.     A dummy
>> load, RF sampler,  and spectrum analyser would make this easy but I don't know
>> what equipment you have available.
> ---------------------------------------------------------------------------
> Bill Frantz        |"After all, if the conventional wisdom was working, the
> 408-356-8506       | rate of systems being compromised would be going down,
> www.pwpconsult.com | wouldn't it?" -- Marcus Ranum
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html

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