Since K3 #145 has had it's sub receiver the forward area of the right hand side panel seems to get a little warmer and I've assumed this is due to the sub rx or second dsp drawing extra through the 2 voltage regs bolted to that panel. Shows it's all working ok since the panel is the heatsink for those devices.
I don't understand how you could suspect the sub rx of increasing the PA temperature if everything has been installed correctly. BTW: I took part in a local RTTY contest for the first time the other evening and was a little concerned about running full power despite reassurances here. Running about 95 watts for 90 contest minutes I kept an eye on the PA temperature and it never went above 46 deg; I put my hand over the back once or twice and the fans seemed to be running but only slowly. I'm now reassured......... Stewart Rolfe, GW0ETF wayne burdick wrote: > >> Since I fitted the second receiver, my K3 is running a whole lot >> warmer, even on receive with the sub receiver turned off. > > The aux DSP adds around 100 mA even when the sub receiver is turned > off, as I recall, so some increase in temperature is normal. The KRX3 > module itself adds nearly zero current when turned off, and I don't > believe it could cause any increase in temperature since just due to > its location above the RF board. When turned on, the KRX3 adds about > 150-200 mA. > > -- View this message in context: http://n2.nabble.com/K3-temperature-tp2216250p2217060.html Sent from the Elecraft mailing list archive at Nabble.com. _______________________________________________ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
