[Elecraft] Front panel temperature

[Nick Lekic]

I have observed the same with my K3.  Although I have never calibrated my FP temperature sensor, it was usually hovering around 25 Celsius before installing KRX3.  With the subreceiver installed, the FP sensor is now pushing 45C and I can feel top of the radio's front panel being quite warm to the touch. 

I also had another problem with my K3 (# 789) related to temperature.  This one is actually related to K3's ability to handle cold environment.  
I was operating some of CQ 160 contests this winter from a place with no available heating.  The temparature in the shack was around 7 degrees at the begining of the contest. 

The cold environment caused the K3 to randomly go into TX mode while spinning the VFO knob.   The faster I would spin the knob, the RX/TX ratio would increase.
   
I also had to turn off radio pooling from within contest logger (Win-Test) which would also cause K3 to go into Transmit every time PC pools the radio.  If I remember correctly,  CW keying via RS232 wouldn't work either. 

Having the temparature in the shack risen above approx 15c , K3 would start working normally. 

I wonder if anyone else observed this problem? 

73, Nick
ve3ey



----- Original Message ----
From: Barry Simpson <vk2bj at optusnet.com.au>
To: Elecraft at mailman.qth.net
Sent: Friday, March 27, 2009 6:14:23 AM
Subject: [Elecraft] Front panel temperature

I raised the issue some time ago of my K3 front panel temperature being much
higher after installing the KRX3.



At that time Wayne or Eric indicated they would look into a new function of
controlling the fan by the front panel temperature as well as by the PA
temperature. Any progress or further thoughts on this guys ?



Barry VK2BJ

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