Can be easily done with a PRO-43, its nearly as sensitive as the radios
used for satcom. One of the early satcom radios (PSC-3) used a simple
short whip to receive selective calling signals via the satellite while
the radio was on a G.I.s back. He would then attach the larger CP
antenna to transmit back to the satellite. You can uplink to some the
UHF military satellites with as little as 5w into a CP 5dBi gain
antenna. Normal power is about 20w. A dish for UHF sats?? Maybe you
should read up on typical equipment used for this....

Ralph A. Schmid, DK5RAS wrote:
"Jeff" wrote:


Pardon my skepticism but by the time any satellite signal reaches
earth you're talking signals in the nanowatt range. Thats the reason why
you need a beam and preamp, or a dish with a LNA. And you want
us to believe a consumer grade RS handheld can do this feat with
just a rubber duck??????? Come on.


It is definetely possible, BTDT. Why should there any difference to my
satellite handheld phone, which also works just with some flimsy
antenna?!



regards - Ralph

The difference might be big...the receiver in the satellite phone will be
optimized for a narrow range of frequencies and may have more gain at those
frequencies to compensate for the lower level signal. It's not just antenna
type & size that are important.


It is definetely possible, BTDT. Why should there any difference to my
satellite handheld phone, which also works just with some flimsy
antenna?!

regards - Ralph

Usually the UHF satcom radios are full 225 to 400MHz, not that narrow.


DougSlug wrote:
The difference might be big...the receiver in the satellite phone will be
optimized for a narrow range of frequencies and may have more gain at those
frequencies to compensate for the lower level signal. It's not just antenna
type & size that are important.



It is definetely possible, BTDT. Why should there any difference to my
satellite handheld phone, which also works just with some flimsy
antenna?!

regards - Ralph