Bob<br><br><span>It seems my question was not understood. How I have showed, PCSAT was over South America. At those time Findu was showing packet of PCSAT-11 being digipeated by KC8OBZ-2. Since KC8OBZ-2 is supposed be in USA and impossible to receive a beacon from PCSAT-1 when she is over SA, I see this possibilities:<br>
a) There would be another station with callsign PCSAT-11 <br>b) The packet sent by PCSAT-11 when she was over USA was received by Findu via KC8OBZ-2 only 10 to 15 minutes after the pass.<br><br>I want only learn how this event work. Thanks for your answer.<br>
<br></span>73, Francisco<br>PT2TD<br><br>=======================================================================<br><div><span class="gmail_quote">2008/2/14, Robert Bruninga <<a href="mailto:bruninga@usna.edu">bruninga@usna.edu</a>>:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
> More than one PCSAT?<br> <br> Yes, PCSAT contains two identical redundant transponders. The<br> W3ADO-1 side has uplink and downlink on 145.825. Side B<br> (PCSAT-11) has secret uplink, but a downlink on 144.39 over<br>
North America (the continent wide APRS channel). The secret<br> uplink is available for special applications if anyone can think<br> of one.<br> <br> If you see both downlinks on 145.825, then it means the CPU has<br> crashed an has cross connected the transmitters for<br>
"redundancy". We must send the command to isolate the two sides<br> or we are wasting DOUBLE power each time it transmits on either<br> side.<br> <br> Actually, PCSAT has a total of FOUR callsigns and FOUR uplink<br>
receivers. And FOUR transponders, but the two UHF uplinks at<br> 9600 baud are kept turned off to save power. In fact it is the<br> default ON of these extra two 9600 baud systems that cause PCSAT<br> to be power negative and therefore only be useable twice a year<br>
in Full sun. We wont make that mistake again...<br> <br> Bob, WB4APR<br> <br><br> > -----Original Message-----<br> > From: <a href="mailto:aprssig-bounces@lists.tapr.org">aprssig-bounces@lists.tapr.org</a><br> > [mailto:<a href="mailto:aprssig-bounces@lists.tapr.org">aprssig-bounces@lists.tapr.org</a>] On Behalf Of<br>
> Francisco Rogerio Fontenele Aragão<br> > Sent: Wednesday, February 13, 2008 5:50 PM<br> > To: <a href="mailto:aprssig@lists.tapr.org">aprssig@lists.tapr.org</a><br> > Subject: [aprssig] More than one PCSAT?<br>
><br> > Today PCSAT had a pass over Brasilia from 2207 UTC to 2223<br> > UTC but Findu showed the following log during the pass:<br> ><br> ><br> > 20080213222151 :<br> > LW5DGM]CQ,W3ADO-1*,qAo,LW4DEM-4:=3801.42S/05734.03W`73' Via<br>
> Satelite {UISS50}<br> > 20080213222107 :<br> > W3ADO-1]BEACON,SGATE,qAo,LW4DEM-4:T#128,155,156,065,208,214,00<br> > 111111,0011,1<br> > 20080213222022 : LW5DGM]CQ,W3ADO-1*,qAo,LW4DEM-4::EMAIL<br> > :<a href="mailto:peludobueno@yahoo.com.ar">peludobueno@yahoo.com.ar</a><br>
> 20080213221938 : LW5DGM]CQ,W3ADO-1*,qAo,LW4DEM-4::LW4DEM<br> > :Hola Jorge Saludos.....<br> > 20080213221908 : W3ADO-1]APRS4,qAo,LW4DEM-4:Default LT4<br> > 20080213221907 :<br> > W3ADO-1]BEACON,SGATE,qAo,LW4DEM-4:T#126,132,140,143,134,214,00<br>
> 111111,0001,1<br> > 20080213221900 :<br> > N9FLX]APRX46,N9AMN-2*,WIDE3-2,qAo,WB9TLH-12:;PCSAT-11<br> > *131309z0000.00N/00000.00W/<br> > 20080213221847 : W3ADO-1]APRS3,qAo,LW4DEM-4:Default LT3<br> > 20080213221742 : N9FLX]APRX46,TCPIP*,qAO,WB8NUT:;PCSAT-11<br>
> *131309z0000.00N/00000.00W/<br> > 20080213221734 :<br> > LW5DGM]CQ,W3ADO-1*,qAo,LW4DEM-4::BLNQSL1/1:W3ADO-1{UISS50}<br> > 20080213221707 :<br> > W3ADO-1]BEACON,SGATE,qAo,LW4DEM-4:T#124,156,157,073,209,214,00<br>
> 111111,0011,1<br> > 20080213221704 :<br> > LW5DGM]CQ,W3ADO-1*,qAo,LW4DEM-4:=3801.42S/05734.03W`73' Via<br> > Satelite {UISS50}<br> > 20080213221413 :<br> > PCSAT-11]BEACON,SGATE,qAR,KC8OBZ-2:T#587,135,134,096,128,214,0<br>
> 0111111,1110,1<br> > 20080213221113 :<br> > N9FLX]APRX46,N9AMN-2*,WIDE3-2,qAo,WB9TLH-12:;PCSAT-11<br> > *131309z0000.00N/00000.00W/<br> > 20080213221111 :<br> > PCSAT-11]BEACON,SGATE,qAR,KC8OBZ-2:T#586,137,139,138,123,214,0<br>
> 0111111,1101,1<br> > 20080213220946 :<br> > PCSAT-11]BEACON,SGATE,qAo,9Z4GFB-7:T#594,137,139,138,123,214,0<br> > 0111111,1101,1<br> > 20080213220855 :<br> > PCSAT-11]BEACON,SGATE,qAR,KC8OBZ-2:T#585,142,052,095,063,214,0<br>
> 0111111,1100,1<br> > 20080213220840 : PCSAT-11]APRS4,qAR,KC8OBZ-2::BLN4PCSAT:In<br> > View now. QSY 145.825 for QSO.<br> > 20080213220758 : PCSAT-11]BEACON,SGATE,qAo,WP4YF:]131456z<br> reset wb4apr<br> ><br>
> How can one understand the beacons of PCSAT-11 digipeated<br> > by KC8OBZ-2 station? How about the beacons of N9FLX?<br> ><br> > 73, Francisco<br> > PT2TD<br> > Loc GH64bf (Lat 15.76020 S, Lon 47.83656 W)<br>
> --<br> > Francisco Rogerio F. Aragão<br> ><br> ><br> <br> <br> <br>_______________________________________________<br> aprssig mailing list<br> <a href="mailto:aprssig@lists.tapr.org">aprssig@lists.tapr.org</a><br>
<a href="https://lists.tapr.org/cgi-bin/mailman/listinfo/aprssig">https://lists.tapr.org/cgi-bin/mailman/listinfo/aprssig</a><br> </blockquote></div><br><br clear="all"><br>-- <br>Francisco Rogerio F. Aragão<br>