Correction...dropping the power below 10W shifts the birdy about 300Hz it does not "kill the birdy" (no birdys were harmed during these tests).
----- Original Message ----- From: "Tom Althoff" <[EMAIL PROTECTED]> To: "Elecraft" <[email protected]> Sent: Sunday, January 02, 2005 3:50 PM Subject: Re: [Elecraft] Birdy on 28020 with K2? > Yes..its the HV osc...I can make a theramin out of the diode/capacitor > strings. Sadly..there is no trimmer cap that I can tweak. But lowering > the power to get the KPA-100 to drop out kills the birdy which is fine in a > pinch if there is a new country ... Like the 5T5 that has been hanging out > on 28020. > > 73 de Tom K2TA > > ----- Original Message ----- > From: "Tom Hammond" <[EMAIL PROTECTED]> > To: "Tom Althoff" <[EMAIL PROTECTED]> > Sent: Saturday, January 01, 2005 10:34 AM > Subject: Re: [Elecraft] Birdy on 28020 with K2? > > > > Tom: > > > > >I'm getting a birdy near 28.020MHz with my K2/100. Is there anything > > >that can be done to eliminate this or move it a few kHz? > > > > Does it go away if the KPA100 is not powered up (e.g. DC removed)? Might > be > > the HV osc (PIN diode blocking voltage osc.) in the KPA. > > > > If so, it can probably be MOVED elsewhere... maybe significantly reduced > as > > well. > > > > Tom N0SS > > > _______________________________________________ Elecraft mailing list Post to: [email protected] 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
