Search found 5 matches

by karlschneider
Fri Nov 09, 2007 4:32 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: GP300 only transmits when held horizontal!
Replies: 2
Views: 492

GP300 only transmits when held horizontal!

I got my hands on a P94 8 ch 300 that receives perfectly and programs tx & rx fine. If I hold it upright, it usually won't transmit but if I hold down the PTT and tilt it down to near horizontal, it suddenly has output. Thumping (gently of course) on the case when it's upright will cause it to send ...
by karlschneider
Wed Dec 28, 2005 6:30 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Bad transmitter or PA in a Maxtrac 300?
Replies: 10
Views: 1158

[quote="Max-trac"]Does it do anything differently when you go into the Service transmitter alignment section with RSS and attempt to tx using the F6 key?[/quote]

AH! Update here...thanks to your suggestion, I discovered that I COULD key the XT from in the RSS. I cut back on the xmtr power to about ...
by karlschneider
Wed Dec 28, 2005 5:13 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Bad transmitter or PA in a Maxtrac 300?
Replies: 10
Views: 1158

[quote="Max-trac"]Does it do anything differently when you go into the Service transmitter alignment section with RSS and attempt to tx using the F6 key?[/quote]

I didn't think to try that. I will in a few minutes...thanks will let you know!
ks
by karlschneider
Wed Dec 28, 2005 5:11 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Bad transmitter or PA in a Maxtrac 300?
Replies: 10
Views: 1158

Re: Bad transmitter or PA in a Maxtrac 300?

[quote="Jim202"]You might try looking around the TX VCO area. it kind of sounds like the TX may try to come up and then the VCO goes out of lock. I would expect you to get an error tone when this happens.

The other area is the power supply feed in the PA. It could be loosing the DC power to the ...
by karlschneider
Wed Dec 28, 2005 3:29 pm
Forum: General Motorola Solutions & Legacy Radio Discussion
Topic: Bad transmitter or PA in a Maxtrac 300?
Replies: 10
Views: 1158

Bad transmitter or PA in a Maxtrac 300?

I tried to find anything on this but didn't...sorry if it has been covered!

I'm new to Batlabs and also to modern Moto radios having been out of the hobby for many years, I built what I think was the first 2M repeater west of the Miss river back in ~62 on my mom's back porch using a scavanged 1 ...

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