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Antenna Preamp
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June 20th 04, 03:34 PM
Paul Burridge
Posts: n/a
On 18 Jun 2004 04:36:49 GMT,
(Avery Fineman)
wrote:
Putting on the skeptic's hat, I'd have to ask why the need of a
preamp? If more receive gain is desired, the safer place to do
that could be in the transceiver itself. The T/R switching is already
there and presumably safe to use as it is.
An exceedingly well-written explanation, if I may say so, Len.
You're of course right to suggest the above solution; the only problem
nowadays being the mind-boggling lack of space inside the new
transceivers!
As for the use of switching relays at RF; surely someone must make RF
relays specifically to preserve the 50 ohm characteristic impedance of
most transmission lines? After all, 29Mhz is one thing, but what is
one to do at say 2Ghz??
--
"What is now proved was once only imagin'd." - William Blake, 1793.
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