[Repeater-Builder] UHF Micor (mobile) "spur" - conclusion
Joe was right. I feel like an idiot! But this experience served as a very effective reminder... I doubt I'll be making this mistake again any time soon. :-) Service monitors and spectrum analyzers don't live out here in the sticks. So when I had reports of a spur I dragged out my receivers to use as test equipment. I made sure I had several diverse receivers (instead of relying on one) but failed to check the IF schemes to be sure they were really diverse. It turns out all of them use a 455 kHz second IF with low side injection. I did find one receiver with a 450 kHz IF... and the "spur" magically moved 10 kHz. Oops! So it turns out to be the best kind of problem: someone else's. I'm not sure what we're going to do now... at least one person will be adversely affected unless I change repeater frequencies (AGAIN - long story) or he gets a different radio. At least now I can get these Micors off my test bench! There's other stuff in the queue waiting for bench time. Paul N1BUG Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] UHF Micor (mobile) "spur" - conclusion
> >So it turns out to be the best kind of problem: someone >else's. I'm not sure what we're going to do now... at >least one person will be adversely affected unless I change >repeater frequencies (AGAIN - long story) or he gets a >different radio. At least now I can get these Micors off >my test bench! There's other stuff in the queue waiting >for bench time. I can't see any reason for you to change frequencies. This is a weakness of his radio. A directional antenna at his site would probably help. Another thing you could try, is a notch filter, but I don't know if you'll be able to get one that narrow. When he's shopping for radios, that would be something to remember. Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] UHF Micor (mobile) "spur" - conclusion
> >Service monitors and spectrum analyzers don't live out here >in the sticks. BTW: Which sticks are you in? I'm in EC Indiana, with an SA that I could loan. Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] UHF Micor (mobile) "spur" - conclusion
> BTW: Which sticks are you in? I'm in EC Indiana, with an > SA that I could loan. A kind offer, thanks. Different sticks though... I'm in central Maine, geographically speaking (that's northern Maine to most of the world :-) Paul Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
