That's because the radio has a very tight front end on it. You have to retune the helicals. Nothing special has to be done with the high side injection - just the same retuning.
Joe M. Mathew Quaife wrote: > > Ok, gonna sound stupid here. The xtal that originally came with the > unit was set for normal frequency range. Does everything have to be > redone when you go with a high side xtal? At this point it will not > receive even with a 5 watt ht next to it, aside the 0 dBm my service > monitor gives it. > > Mathew > > Chuck Kelsey <[EMAIL PROTECTED]> wrote: > > You did re-tune the oscillator section, didn't you? > > Chuck > WB2EDV > > > > > ----- Original Message ----- > From: Mathew Quaife > To: [email protected] > Sent: Monday, January 01, 2007 11:44 AM > Subject: Re: [Repeater-Builder] Bowmar Crystals > Ordered, all the RX not working for GE EXEC II > mobiles > > Thanks Chuck, that is what they sent me, so your > math is just fine. Then there must be something I > am missing. I can take one of the old xtals and > they work out just fine, so I know the receivers > are working. Might I ask what the formula you > used was? It's been a long time since I have > calculated a crystal freq. so just need the > formula configuration. > > Mathew > > Chuck Kelsey <[EMAIL PROTECTED]> wrote: > > If my hasty math is correct: > > 144.81 low side = 14.845555 > 144.81 high side = 17.334444 > > 434.875 low side = 16.39537 > 434.875 high side = 16.521296 > > Chuck > WB2EDV > > ----- Original Message ----- > From: "n9lv" <[EMAIL PROTECTED]> > To: <[email protected]> > Sent: Monday, January 01, 2007 10:40 AM > Subject: [Repeater-Builder] Bowmar > Crystals Ordered, all the RX not working > > for GE EXEC II mobiles > > > Hope someone can help shed some light > here. I ordered xtals from > > Bomar (3 week wait) for the GE EXEC II > mobile radios, 6 for RX for > > 144.810 and one RX of 434.875, all > high side injection. None of them > > are working at all. At the same time I > ordered tx xtals for the same > > radio, they all work just fine. What > might I be missing here, or did > > they just cut them all wrong. > > > > Mathew > > > > > > > > > > > > > > > > Yahoo! Groups Links > > > > > > > > > > __________________________________________________ > Do You Yahoo!? > Tired of spam? Yahoo! Mail has the best spam > protection around > http://mail.yahoo.com > > __________________________________________________ > Do You Yahoo!? > Tired of spam? Yahoo! Mail has the best spam protection around > http://mail.yahoo.com
