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PC1L > SATELL 16.08.04 19:48l 30 Lines 2386 Bytes #999 (0) @ WW
BID : G8ELX0PAC005
Read: GUEST
Subj: WRKD AO-51 Echo
Path: ON0AR<ON0AR<7M3TJZ<SP7MGD<RZ6HXA<LX0PAC
Sent: 040816/1942z @:LX0PAC.LUX.EU [Bourscheid JN39AV] bcm1.43l
From: PC1L @ LX0PAC.LUX.EU (Leon)
To: SATELLIT @ WW
X-Info: No login password
From : PC1L ( ex PA3GJE ) @ ON0LGE
to : satellit @ ww
sub : AO-51 Echo Contact
Maastricht 16 Aug 2004
After a short try ( testing the sub command tone CTCSS 74.4 Hz and PL 67 Hz ..... hi hi ) via SO-50, 15 Aug ( worked Jep, F6BYJ in JN05FS ), 08:46 UTC, I decided to make another try, concerning AO-51 Echo.
During orbit 660, AOS, I listened carefully for a while on the TXB frequency. The signals were very good and stable too. CQ from ON4BK, DK1NR, UT5UAR, DG2BCA and RV3EAX. ON4BK in JO20FM had a QSO with DK1NR in JN59MI. After it and several CQ's from the other stations I gave my callsign and could receive it on the downlink ( less uplink noise ). So I mentioned my callsign again and then I called RV3EAX hi. RV3EAX could not answer that moment and ON4BK came back ( MA PHASE 27 AF ) ! We had a short contact, 10:29 UTC. The ON4BK input was 100 % ( no uplink noise and clear audio ).
I digitalized the recorded audio, perhaps I will place it in my site : www.qsl.net/pa3gje/ if yes, you can find it in : AUDIO ( QSO ).
Some are wondering : sometimes stations can hear a part of the transmission on the downlink, then nothing anymore, only the TXB carrier is there. As if you are no longer on the input ! It seems the RX sensitivity is bad and the sat can not receive your signals but that is not true ! Often it has to do with unwanted mix or strong carriers without modulation ( no PL tone ). After the disturbings you can continue. During the test period the best thing you can do is use 'full duplex' to have a good coordination ! Further, if there are very strong stations working it is a fact the weaker stations do not come over.
The downlink turnstile system ( Mary array ) works excellent ! It delivers a VERY good and stable signal if working on ground with LIN antenna's like rubber duck etc. Several attitudes of your HT are possible.
The receiver/uplink antenna combination is very sensitive and this configuration delivers very good results on the uplink. Remark : the 'attitude' of your HT is IMPORTANT now ! ( Because of the satellite uplink antenna ( LIN, no CP ! ). Prevent mismatch.
Wish All Success with the Satellites, in this case ofcourse AO-51, Echo !
73, Leon ((-,O)) PC1l.
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