KPA1500, First Contest

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KPA1500, First Contest

K9MA
OK, just a CWT mini-test.  Max. temperature when running was 63 C, fan
noise not an issue with Radiosport headset.  The flashing SWR lights,
stopped in PTT mode.  Temperature jumping around when transmitting
persists in PTT mode, but stable on receive.  Power gain seems to drift
around a bit, probably temperature dependent, not a big deal.  (I'm
pretty sure the K3 output is stable.)

73,

Scott K9MA

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Scott  K9MA

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Re: KPA1500, First Contest

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 Scott
Are you also getting temp fluctuations in xmit and how much?  Mine is dependant on the temp, at lower temps the fluctuation is less than if up at 60Cand mine only happens on 40 mtrs.  Spoke with an Elecraft engineer and this could possibly result in a mod surrounding the temp sensor.
BillK3WJV

    On Wednesday, May 23, 2018, 10:22:01 AM EDT, K9MA <[hidden email]> wrote:  
 
 OK, just a CWT mini-test.  Max. temperature when running was 63 C, fan
noise not an issue with Radiosport headset.  The flashing SWR lights,
stopped in PTT mode.  Temperature jumping around when transmitting
persists in PTT mode, but stable on receive.  Power gain seems to drift
around a bit, probably temperature dependent, not a big deal.  (I'm
pretty sure the K3 output is stable.)

73,

Scott K9MA

--
Scott  K9MA

[hidden email]

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Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
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