[Microwave] Rigs that have all mixer injection frequencies derived from a master oscillator

Dave Brown tractorb at ihug.co.nz
Mon Apr 13 06:57:16 EDT 2009


 I've been looking hard at the Icom 706 recently as it has 1 Hz dial 
resolution and all mixing frequencies are locked/derived from a 30 MHz 
master oscillator that can be externally sourced and GPS referenced 
etc very easily.
 See this-

http://g4hup.com/FC/DFS30/DFS30.htm

The 706 also has the advantage it is getting cheaper all the time as 
its now no longer current at Icom-although I expect there's still a 
few new ones available.

Anyway- I asked Dave, G4HUP, if he knew of a list of what rigs have 
the subject line - turns out he knew of a few but like me he had been 
wondering if anyone else had bothered to make up a list as the rig 
makers don't publicise this at all - no idea why, as it's surely a 
selling point for those of us who may be considering use with 
UHF/microwave transverters etc for very narrow band work.

End result of this is that Dave has started a list and we are looking 
for more data to go in it- so if you know of a rig that has all mixer 
freqs locked back to a master then we would like to know the details- 
rig name, type etc info and master osc frequency are the prime bits of 
data we want.  But anything else thats relevant would be appreciated 
as well.

Dave is going to put the list up on his web site once we get a few 
more to add to it-for now I have put a copy here-

http://homepages.ihug.co.nz/~tractorb/MO%20reference%20data/

 so feel free to grab a copy and see whats in it.
 If you have anything to add then by all means let me or Dave G4HUP 
know.
73
 Dave, ZL3FJ



More information about the Microwave mailing list