[amsat-bb] Questions on USNA Satellite Identifications (PSAT2 PSK31 - use it)

[Robert Bruninga]

P.S.  The SSTV is automatic once every 2 minutes or 4 minutes depending on
Energy levels. But ONLY in spacecraft daylight.



The PSK31 audio downlink does not activate unless someone is TXing PSK31 on
the ten meter uplink.  That is around 29.4815



So I guess there is nothing to hear unless we get some people on the ten
meter uplink.  (this is unlike PSAT which has an uplink in the NORMAL
terrestrial PSK31 frequency and there is usually someone on (unknowingly
being relayed).  Not so for PSAT2 which has to have  someone transmitting
first.  But if you do, you get the full transponder for the full pass as
long as you keep transmitting.  Others can join you a few dozen Hz away and
have a multi-way chat.



Bob, WB4aPR



*From:* Robert Bruninga <bruninga at usna.edu>
*Sent:* Friday, December 13, 2019 9:53 AM
*To:* amsat bb <amsat-bb at amsat.org>
*Cc:* Robert Bruninga <bruninga at usna.edu>
*Subject:* FW: Questions on USNA Satellite Identifications



Although we have lost the PSAT-2 VHF downlink, the UHF PSK31 and SSTV
camera are still on 435.350.  We have been asked by authorities to confirm
that PSAT2 is correctly catalogued as 44354?  (I believe it is)



Similarly, USNAP1 is still beaconing once a minute on 145.825.  They are
asking if it could be 44357 (OBJECT U) instead of 44355



Having moved out of our lab/groud station of 27 years we have no antennas
and cannot easily do this until the spring.



Thanks

Bob, WB4APR