Re: [Repeater-Builder] Re:Duplexer Desense Problem - Mystery

2008-05-10 Thread Wayne
this brings up a couple of questions. first, what type of transmitter were you using. Second, how well was it shielded? A Mastr II station would not be as likely to come up with such a problem as long as the normal shielding was not defeated. I can't comment on batwing stations, as I

RE: [Repeater-Builder] Re:Duplexer Desense Problem - Mystery

2008-05-10 Thread Ron Wright
A CPU I use devides the crystal by 12 and with a 3.58 MHz xtal this becomes about 300 kHz and of course with lots of harmonics. I simply changed the crystal to 4.x MHz and fixed the problem. DTMF decoder/encoders that use a typical 3.58 crystal do not cause this problem. Did not affect

RE: [Repeater-Builder] Re:Duplexer Desense Problem - Mystery

2008-05-10 Thread Mike Morris WA6ILQ
Sometimes figure out what the 41st harmonic of the color burst crystal is and why a handheld or a scanner can't listen to the 146.76 repeater. At 06:46 PM 05/10/08, you wrote: A CPU I use devides the crystal by 12 and with a 3.58 MHz xtal this becomes about 300 kHz and of course with lots