[amsat-bb] AO-7 mode A experieces from KP35
Mika Siira
oh8mbn at suomi24.fi
Fri Oct 8 14:09:44 PDT 2010
Hello folks,
I have been mostly mode B user on AO- 7 satellite but
today I decided to try mode A from my summer QTH. I have two
antennas
for downlink (vertical and Spiderbeam with four elements for 28MHz) and
no problems for receiving signals from the sat. Of course because of
the polarsation change switching between these antennas during the pass
gives best results.
For the uplink I have used FT-817 (5w power) to 9-
element yagi, unfortunately SWR is high above 145MHz. On every pass
that I tried today I have heard my own signal on downlink (weak but
heard).
What is the recommended power level for mode A (if there is
one)? From my previous visits to my summer QTH I have heard some
japanese stations and satations from stateside, so this mode would be
worth to try. On mode B from my city location
5-15 watts is well
enough. What kind of antennas people are using on mode A?
Mika, OH8MBN
More information about the AMSAT-BB
mailing list