[Milsurplus] Multiple Front End receiver

Ray Fantini RAFANTINI at salisbury.edu
Mon Aug 23 08:54:53 EDT 2010


They are expensive but one of the advantages of the URC-101 or 110 family of radios is they cover both VHF and UHF AM and FM and have the ability to scan or store multiple channels in memory, also they are relatively small for all they do. The only disadvantage is that you cannot mix AM and FM together. The memory only presets frequencies and splits, not mode. If you want to spend more money there are some really neat software defined radios out their where you can construct scanning and mode functions but think combining multiple mixer output into one IF may have some nasty heterodynes as a byproduct.
Ray Fantini KA3EKH

-----Original Message-----
From: Robert Flory [mailto:robandpj at earthlink.net] 
> One difference in how a multiple front end receiver with a common IF will
> perform compared multiple independent receivers is that the strongest
> signal will drive the AGC.  You'll also probably experience some
> heterodynes.

Ah, hadn't thought of either of these.  Okay, back to finding aircraft
radios that are no longer accepted for the VHF side and hoping to find
equivalents for the UHF side.

Thank you.

Best regards,
 
Michael, WH7HG BL01xh
http://www.nationalmssociety.org/chapters/NTH/index.aspx 
http://wh7hg.blogspot.com/ 
http://kludges-other-blog.blogspot.com 
Hiki Nô! 



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