[Boatanchors] GPR-90 Vs R-390A

[Al Klase]

Hi Harold,

The primary difference is that the Collins receivers, 51J, R-388, 
R-390/390A, have a crystal controlled first oscillator, while the one in 
the GPR-90 is tunable.  This gives the Collins receivers a tremendous 
advantage in frequency accuracy that established a new generation of 
receivers.

The R-390A also benefits from Collins mechanical filters and 
considerable extra money in the original cost.  GPR-90 is rarer and has 
more sex appeal, however.

Al

Harold Hairston wrote:
> There were many Boat Anchors at the Shelby/Dallas, N.C. Hamfest this past weeknd. I saw a very nice GPR-90, first one in many years. Just wondered, from those who know, how do these two receivers compare?
>
> Harold
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-- 
Al Klase - N3FRQ
Jersey City, NJ
http://www.skywaves.ar88.net/