[SignalOne] Re: SignalOne digest, Vol 4 #39 - 1 msg

Tue, 14 Oct 2003 15:33:35 +0200

Hi Gary,

I do not completely agree. The Signal/One Milspec 1030 has a reference oscillator at 10 MHz. The (special) crystal in this oscillator works at an unconventionally high power level. If it fails and you substitute it with a "normal" crystal it will first work properly, then slowly start drifting, then jumping in frequency and after several hours/days of operation the crystal disc will break. So crystal oscillators can get sort of weak. Not in output level but in oscillation behaviour. But this is normally not true with L/C oscillators - you are perfectly right there.

Best 73

Uli, DK4SX

-----Original Message-----
From: [email protected]
[mailto:[email protected]]On Behalf Of Gary Follett
Sent: Dienstag, 14. Oktober 2003 15:10
To: [email protected]
Subject: [SignalOne] Re: SignalOne digest, Vol 4 #39 - 1 msg

Just a guess but, generally, if a crystal oscillator has anything wrong 
with it, it just stops oscillating. Ditto for PTO/VFO type oscillators. 
Seldom are they "weak".

Are you aligning the radio just on principle or was the radio 
malfunctioning? If it was malfunctioning, alignment is the LAST thing 
you want to do, especially in a solid state  radio. Again, generally, 
alignment in a solid state radio does not change much unless someone 
fiddled with it. Parts fail and you don't want to try to correct a 
failed part problem with alignment! I'm new to the group so I am not 
directly familiar with your radio's problems so please, if you can, 
fill me in.

Gary

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