Re: SV: [Elecraft] K3 Beta firmware rev. 2.57
I have the TxG VCE set to -1.5 db in order to avoid excessive peak SSB power levels compared to CW levels... If I set it to 0 db or higher, I get more carrier power on AM at the expense of excessive SSB power. I guess it needs the power gain (Tx VCE) setting to be per mode, not SSB and AM. 73 Dave, G4AON Lennart Michaëlsson wrote: GM all, not that I am one of those AM guys but just checked my K3 which produces 45W on 160 and 40W on 80. Maybe some set up trouble, Dave? 73 Len SM7BIC ___ 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
SV: [Elecraft] K3 Beta firmware rev. 2.57
Dave, I agree with you - there is "something odd going on". Then, perhaps the power level setting should be renamed to PEP output instead? Let us see what Wayne finds out (in due time) One more early morning on 160 with SSB contest going on it was possible to work some NA westcoast on CW with an outstanding K3, the diversity really is amazing! 73 Len SM7BIC Len I checked the calibration at 5 and 50 Watts, the carrier power is close to the power control setting at other power settings too. Earlier firmware gives higher power, although still short of the expected 25 - 40 Watt carrier. I have gone back to f/w version 2.46, although that has useless AM TX audio as there is no compression. I was checking on 80m into a 50 Ohm load. I'm not too worried about AM as I rarely use it, but it should be implemented better than it is. 73 Dave, G4AON - Lennart Michaëlsson wrote: > GM all, > not that I am one of those AM guys but just checked my K3 which produces 45W > on 160 and 40W on 80. > Maybe some set up trouble, Dave? > 73 > Len > SM7BIC > > Wayne, the AM power level in this version only seems to produce a > carrier of 10 Watts when the requested power is "100W". While I don't > agree with the idea of calling the power anything other than the carrier > level, i.e. I would expect the power control to only go to about 30 > Watts on AM, 10 Watts is only 1/3rd of the carrier power a 100 W nominal > transceiver should produce. > > Back to the drawing board? > > 73 Dave, G4AON > K3/100 #80 > == > > * MORE ACCURATE AM-MODE POWER LEVEL. Also slightly higher modulation > percentage. > > ___ 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
SV: [Elecraft] K3 Beta firmware rev. 2.57
GM all, not that I am one of those AM guys but just checked my K3 which produces 45W on 160 and 40W on 80. Maybe some set up trouble, Dave? 73 Len SM7BIC Wayne, the AM power level in this version only seems to produce a carrier of 10 Watts when the requested power is "100W". While I don't agree with the idea of calling the power anything other than the carrier level, i.e. I would expect the power control to only go to about 30 Watts on AM, 10 Watts is only 1/3rd of the carrier power a 100 W nominal transceiver should produce. Back to the drawing board? 73 Dave, G4AON K3/100 #80 == * MORE ACCURATE AM-MODE POWER LEVEL. Also slightly higher modulation percentage. ___ 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 ___ 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
