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
Here's what you need to do the calculations. Let us know what you find.
http://www.repeater-builder.com/ge/ge-crystal-info.pdf
Chuck
WB2EDV
- Original Message -
From: n9lv [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Monday, January 01, 2007 10:40 AM
Subject:
If my hasty math is correct:
144.81 low side = 14.84
144.81 high side = 17.33
434.875 low side = 16.39537
434.875 high side = 16.521296
Chuck
WB2EDV
- Original Message -
From: n9lv [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Monday, January 01, 2007 10:40 AM
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
My math was TOO hasty.
434.875 low side = 15.691666, not what I originally said.
Chuck
- Original Message -
From: Chuck Kelsey [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Monday, January 01, 2007 11:22 AM
Subject: Re: [Repeater-Builder] Bowmar Crystals Ordered, all
For high side, high band -- F+11.2/9
For high side, UHF -- F+11.2/27
Chuck
WB2EDV
- Original Message -
From: Mathew Quaife
To: Repeater-Builder@yahoogroups.com
Sent: Monday, January 01, 2007 11:44 AM
Subject: Re: [Repeater-Builder] Bowmar Crystals Ordered, all the RX not
Thanks Chuck, found them in the list that was referenced. So these are
correct, why do they not work? Anyone with any good ideas?
Mathew
Chuck Kelsey [EMAIL PROTECTED] wrote:
For high side, high band -- F+11.2/9
For high side, UHF -- F+11.2/27
Chuck
WB2EDV
You did re-tune the oscillator section, didn't you?
Chuck
WB2EDV
- Original Message -
From: Mathew Quaife
To: Repeater-Builder@yahoogroups.com
Sent: Monday, January 01, 2007 11:44 AM
Subject: Re: [Repeater-Builder] Bowmar Crystals Ordered, all the RX not
working for GE
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.
Re tune the oscillator/multiplier.
Chuck
WB2EDV
- Original Message -
From: Mathew Quaife
To: Repeater-Builder@yahoogroups.com
Sent: Monday, January 01, 2007 12:27 PM
Subject: Re: [Repeater-Builder] Bowmar Crystals Ordered, all the RX not
working for GE EXEC II mobiles
Take a look at the spec sheet for the elements. The
mastr ii exec elements have selected capacitors for
different frequencies. If the new frequency is enough
of a change from the old frequency you will need to
change them. Paul kb9wlc
--- Mathew Quaife [EMAIL PROTECTED] wrote:
Thanks Chuck,
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
From what I read, the elements are all the same, and should work with any of
the bands. I don't see any difference in them, from the uhf to the vhf.
Mathew
Paul Guello [EMAIL PROTECTED] wrote:
Take a look at the spec sheet for the elements. The
mastr ii exec elements have
When retuning the receiver, and having my volt probe on pin 7, I get no
readings when I adjust c307 or c306. When mentioned to move the oscillator,
this I assumed is retuning of the complete receiver.
Mathew
mch [EMAIL PROTECTED] wrote:
That's because the radio has a very
14 matches
Mail list logo
