Ken, How right you are! I wish I had a nickel (actually, I wish I had $10) for every radio that was brought to me with the complaint "I did a complete tune-up on this radio, and now it doesn't work!" We call these guys "diddle-stick artists."
While I am not suggesting that the topic poster did such an abomination, there is the possibility that whoever tuned up the subject radio either did not have all of the appropriate test equipment or the manufacturer's tune-up instructions. It has happened to me, so I know it can happen to others. Of course, there may be a failed part that is causing the spur. Some radios are extremely prone to generating weird spurs if the tuning instructions are not followed precisely. Also, it is very important that all shield plates be reinstalled, with every required screw in place, to avoid leakage. Bottom Line: Tuning for maximum signal is not always the best policy! 73, Eric Lemmon WB6FLY -----Original Message----- From: [email protected] [mailto:[EMAIL PROTECTED] On Behalf Of Ken Arck Sent: Thursday, January 17, 2008 4:11 PM To: [email protected] Subject: Re: [Repeater-Builder] Re: MSR2000 transmit spike At 04:06 PM 1/17/2008, you wrote: >This sort of thing happens a lot when people do a tweak peak >adjustment of an already working transmitter/exciter. Some >stages are by default properly aligned first for a meter dip >indication while others are peaked. <--I'm still wondering how a low level signal 14 megs away from the passband of a duplexer (assuming it's a Bp/Br) can radiate any distance. Ken
