Is it possible that the changing of operation frequency to MARS has caused the PA to become unstable and the resulting spurs are causing the protection circuit to dial back the power? Look at the output on a spectrum analyzer when the power loss occurs. Also, what happens to the PA current draw and the voltage when this problem occurs? The power supply may be unable to supply the needed current.
73, Eric Lemmon WB6FLY -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Hobie's Mail Sent: Friday, January 01, 2010 10:46 AM To: [email protected] Subject: [Repeater-Builder] Re: MSF 5000 Army MARS repeater, Portland, OR I have tried the output direct to a dummy load same result. I use tone access which I turned off and set the machine to squelch open, same result. ??? Hobie
