[amsat-bb] Re: Pre-Amp power

Bob Stewart bob at evoria.net
Mon Oct 1 15:43:01 PDT 2007

Perhaps I missed it, but I don't remember anyone pointing
out that the preamp is essentially off in transmit mode.  Considering
that transmit normally uses a lot more than 180ma on most
rigs, there should be plenty of extra power available in receive 
mode.  On the ARR preamps, there is only 10ma used during 
transmit.  It's hard to think that any rig's PSU wouldn't have 
an extra 10ma available during transmit.

Bob - AE6RV

--- WB2LLP <wb2llp at optonline.net> wrote:

> My thanks to all those who offered the requested data.  You confirmed what I
> had guessed.  Also I thank those that added opinions and arguments supporting
> their opinions.  I liked the conservativism and the attempt to avoid
> destroying expensive, possibly hard to replace hardware.
> TNX es 73 de WB2LLP    
> Gene Marks    
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