RIG/TRANSVERTER HEAT I have noticed when running a Transceiver at low power for Transverter or other use the Transceiver PA gets very HOT so it would appear that this is an inefficient approach excep
LOL Well I work on a 1:400 efficiency for my Mf Ae , so to radiate 1 watt erp , that's 400 watts carrier power to the Ae, I can do the same on 7 meg with 500 mW to the same Ae .... dont forget 'we' h
Happy days are here again : ) -15 , looks like the valve is bedding in nicely ! G.. 2012-11-06 23:54 SM6BHZ 0.475699 -15 0 JO57wq 0.5 WD2XSH/17 FN42pb 5768 291 2012-11-06 23:38 SM6BHZ 0.475699 -15 0
Hi Graham Thought that WSPR stuff was supposed to be ultra low power? How come its blowing rigs up? Could it be that the Wisper is really a blooming great shout and we have a misnomer which is an adv
RIG/TRANSVERTER HEAT I have noticed when running a Transceiver at low power for Transverter or other use the Transceiver PA gets very HOT so it would appear that this is an inefficient approach excep
Mal, If you're generating 500 kHz with a HF TRX then this can happen. I guess the output transformer of the PA appears almost like a short cut for the output FETs, so the losses will be relatively hi
Am 07.11.2012 00:28, schrieb Graham: [...] It all stems from the race to dB's , as you can see now Gus has a decode at -20 dB across the pond , where Stefan, just a new boy to 500 has only -23 dB , b
But what are you sending with the reduced power rig ? SSB ... Normal CW Opera all have low duty cycles and result in low heat build up But if you running at 100% key down sending qrss and the like ,