-----Original Message----- From: Carel, pc5m [mailto:[EMAIL PROTECTED] Sent: Tuesday, August 23, 2005 1:25 AM To: '[EMAIL PROTECTED]' Subject: RE: [Elecraft] my K2 and its different frequencies.
Could it be you have an issue with the 8V internal supply ? Maybe on transmit it is somewhere loaded too much so it will drop and the BFO will also change slightly ? You could measure at pin 8 of U11. Also you could verify that the signal called V_BFO is not changed between RX and TX. It can be measured on pin1 of RP6. Another possibility could be a faulty Q24 (J310 FET) used for setting the TX power, normally the impedance on the gate of this FET wouldn't change substancially if V_ALC is applied, but maybe it is defect ? If you adjust TX power is the BFO frequency also changing ? Gl, Carel, pc5m -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED] Sent: Tuesday, August 23, 2005 12:31 AM To: elecraft@mailman.qth.net Subject: [Elecraft] my K2 and its different frequencies. Many thanks to all who answered, including those who helpfully suggested that I might be using RIT or XIT without knowing it. I just put a frequency counter on the BFO on my K2, and it changes about 70Hz when it goes from receive to transmit. Yeah, I know, there's not supposed to be any change, but I get a 70Hz CHANGE IN FREQUENCY BETWEEN RECEIVE AND TRANSMIT. Freq. counter is loosely coupled to the BFO. Any ideas? Merlin, W3ICT _______________________________________________ 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
