wwg@brambo.UUCP (Warren W. Gay) (03/30/89)
If anyone objects to these postings, let me know by email. My only
purpose in distributing these observations is to hopefully stir up
some interest in satellites-- especially those who, like me, only own
HF gear at the present time. RS10/11 and OSCAR-9 are good satellites
to tune in on using HF. There are probably others. RS-10/11 is
workable from 15 meters-- giving the HFer a chance to "test drive"
satellite communication, before jumping in with wallet, er I mean,
both feet :-).
If there are errors, please feel free to email me. The interpretation
of the telemetry is based upon old information-- ie: that of
prelaunch information for RS-03 thru RS-08. There are "?" where new
signals are used. Some of the decoded signals below, might not be
correctly interpreted, if the formulas have changed for RS-10/11. For
what its worth:
Recent Observations of RS-10/11 from QTH of 43.5 N 79.6 W
---------------------------------------------------------
Mar 29 '89 0117z 29.357 Mhz beacon.
0129z lost carrier.
Telemetry:
RK00 Transponder Output Power 0 mW
RO00 Solar Panel # 1 -70.2 C
WS35 Input ROBOT Attenuator 35 dB
UR29 ?
AD38 9 V Transponder Line 3.8 V
UG34 9 V Regulator # 1 3.4 V
MA00 ?
WW00 Input Attenuator (transp). 0 dB
WK46 Transponder Output Power 423.2 mW
UO80 7.5 V Transponder Line 8 Volts
IS01 ROBOT S Meter -.9 S units
NR00 ?
RD04 ?
IG45 Transponder Sensitivity
NU45 Solar Panel # 3 51.3 C
SW00 Command Receiver S Meter -1 S units
RK00 Transponder Output Power 0 mW
RO00 Solar Panel # 1 -70.2 C
WS35 Input ROBOT Attenuator 35 dB
AR06 ?
UD49 9 V Transponder Line 4.9 Volts
WU00 Command Unit Power 0 mW
WW00 Transp Input Atten. 0 dB
WK46 Transponder Output Power 423.2 mW
AO80 7.5 V Transponder Line 8.0 Volts
Mar 28 '89 2336z 29.357 Mhz beacon
2340z "CQ DE ..."
2348z lost carrier
Telemetry:
IW00 Command Receiver S Meter -1
RK00 Transponder Output Power 0 mW
RO00 Solar Panel # 1 -70.2 C
WS35 Input ROBOT Attenuator 35 dB
UR27 ?
UD38 9 V Transponder Line 3.8 Volts
WU00 Command Unit Power 0 mW
WW00 Transponder Attenuator 0 dB
WK46 Transponder Output Power 423.2 mW
UO89 7.5 V Transponder Line 8.9 V
Mar 28 '89 0025z Heard strong FM signals in
RS11 transponder passband--
no beacons heard on HF 10 meter band.
Mode T operation? (I wish I had a VHF
downconverter!).
Doppler was not noticed, though the FM
signals did deviate a lot.
0033z After this time the transponder
bandpass was silent.
Mar 27 '89 0203z 29.357 Mhz beacon
0212z lost carrier
Telemetry:
SS81 Robot S Meter: 7.1 S units
RD07 Solar Panel Current: 350 mA
IG45 Transponder Sensitivity
NU45 Solar Panel # 3 51.3 C
IW00 Command Receiver S Meter -1 S units
UK10 Transponder Output Power 20 mW
NO02 Solar Panel # 1 -64.8 C
MS35 Input Robot Attenuator 35 dB
NW00 Hermetically Sealed Casing -4 C
MK44 Transponder Output Power 387.2 mW
UO09 7.5 V Transponder Line 0.9 Volts
other telemetry:
4 marnr 8498 0020 ut2108 ap /BT
11 marnr 8594 0022 ut2238 ap /BT
18 marnr 8690 0024 ut2358 ap /BT
25 marnr 8786 0026 ut2408 ap /BT
period 105.5022 min / ob /BT
~~~~ 26.53813 grad / ob /BT
73 de rs3a /AR
Mar 27 '89 0020z 29.357 Mhz beacon
0027z lost carrier
Mar 22 '89 0149z 29.357 Mhz beacon
Heard some multipath.
0156z "CQ DE RS10"
0158z lost carrier
Mar 22 '89 0015z Heard enhanced 10 Meter reception--
mode T pass? Also heard FM signals
in transponder passband. Mode T?
0022z Band segment went silent.
Mar 21 '89 0054z 29.537 Mhz beacon
0056z lost carrier
Mar 18 '89 0248z 29.357 Mhz beacon
0252z lost carrier
Mar 18 '89 0103z 29.357 Mhz beacon
29.403 Mhz was active on this pass.
0111z lost carrier
Mar 17 '89 2324z 29.357 Mhz beacon
2335z lost carrier
Feb 5 '89 0455z 29.407 Mhz beacon
73s de + LSI represents Large Scale Investment,
VE3WWG | transistors are "discrete", but tubes are just plain fun.
+------+ Bramalea Software Systems Inc...!utgpu!telly \ !brambo!wwg
!{uunet!mnetor, watmath!utai}!lsuc!ncrcan /
telly!brambo!wwg@gpu.utcs.utoronto.ca : Internetvail@tegra.UUCP (Johnathan Vail) (03/31/89)
I have listened here occasionally. My equipment here is an R7000 and scanner beam antenna, not the greatest for this band but... My question is why is it RS-10/11? I think my AMSAT reference card lists them separately. Are there 2 birds in the same orbit (they launch many together, maybe these are too close together)? Is it some kind of dual transponder/robot combo? Just curious... "Baby, It might sound dodgy now But it, sounds, great, when you're dead" -- Robin Hitchcock _____ | | Johnathan Vail | tegra!N1DXG@ulowell.edu |Tegra| (508) 663-7435 | N1DXG @ 145.110-, 444.2+, 448.625- -----