AMSAT

Amateur Satellite Frequency Guide

Compiled December 1996

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Weekly Satellite Report

SATELLITE	MODE	Note 1	FREQUENCIES
AO-10 (note 2)	B (U/V)	Down Up		Bcn 145.810
RS-10 (notes 3)	A (V/A)	Down Up	Robot	Bcn 29.357 & 29.403
		Down	145.860 870 880 890 145.900
RS-12 (notes 3)	K (H/A)	Down Up	Robot	Bcn 29.408 & 29.454
	T	Down Up	Robot	Bcn 145.912 & 145.959
		Down	29.460 470 480 490 29.500
RS-15		Down Up		Bcns 29.352 & 29.399
FO-20 (JAS-1b) (note 7)	JA	Down Up		Bcn 435.795
	JD(a)	Down Up	435.910 145.850 145.890 145.910
FO-29 (JAS-2) (note 7)	JA	Down Up		Bcn 435.795
	JD(a)	Down Up	435.910 145.850 145.870 145.890 145.910
	JD(c)	Down Up	435.910 145.870
	JD(d)	Down	435.910
AO-27 (EYESAT/ AMRAD)	J(b,a)	Down Up	436.800 145.850
MIR	(b) FM voice	Up&Down Down Up	145.800 145.200 145.800
SAFEX	FM Voice	Down	437.950
	Rpt.	Up	435.750
	Dgr.Voice	Down Up	437.925 435.725
	Packet	Up/Down	437.975
SAREX (on some Shuttle missions)	(b) & FM voice	Down Up	145.550 or 145.840 144.490 (packet) 144.450 & 144.470 (voice)
AO-16 (Pacsat) (Notes 4,5 & 7)		Down Up	437.025 (437.050 Sec.) 145.900 145.920 145.940 145.960
UO-11				Beacons 145.826, 435.025 & 2401.500
AO-16 (Pacsat) (notes 4,5, 6 & 7)	[a]	Down Up	145.825 (437.050 Sec.) none
DO-17 (DOVE) (notes 6 & 7)	[b,c]	Down Up	145.825 2401.220 none
WO-18 (WeberSat)	[a]	Down Up	437.075 437.100(Sec.) none
LU-19 (Lusat) notes 4 & 7	[a]	Down Up	437.125 437.150(sec) 145.840 145.860 145.880 145.900
UO-22 UoSat (OSCAR-22)	[c]	Down Up	435.120 145.900 145.975
IO-26 (IT-AMSAT)	[a,c]	Down Up	435.867 435.820(Sec.) 145.875 145.900 145.925 145.950
KO-23 (KITSAT A)	[c]	Down Up	435.173 145.850 145.900
KO-25 (KITSAT B)	[c]	Down Up	435.175 436.500 145.870 145.980

UO-14

Downlink (Recieve) (MHz)

Uplink (Transmit) (MHz)

435.080	145.970
435.075	145.975
435.070	145.975
435.065	145.975
435.060	145.975
435.055	145.980

AO-27

Downlink (Recieve) (MHz)

Uplink (Transmit) (MHz)

436.810	145.845
436.805	145.850
436.800	145.850
436.795	145.850
436.790	145.850
436.785	145.855

AO-27 is operational during daylight passes only. Hard satellite to hear.

SO-35 (SUNSAT)

Downlink (Recieve) (MHz)

Uplink (Transmit) (MHz)

436.255	145.820
436.250	145.825
436.245	145.825
436.240	145.825
436.235	145.825
436.230	145.830

The voice repeater is active for 14 minutes at a time. Starting times are in UTC.
Weekday operations may be cancelled to support the non-ham payloads.

ISS (Alpha)

Downlink (Recieve) (MHz)

Uplink (Transmit) (MHz)

145.810	144.49
145.805	144.49
145.800	144.49
145.795	144.49
145.790	144.49
145.785	144.49

Operating Procedures:

As the satellite comes towards you, start with the frequencies from the top and work you way down and listen to the downlink signals and adjust to strongest signal.
Listen prior to transmitting.
Never transmit on the uplink unless you can clearly hear the downlink.
Do not use excessive power. Five watts is the guideline for a non-directional antenna. Low power, two watts of output of the typical hand-held transceiver will be sufficient with a high efficiency directional antenna.
Be courteous and allow QSO's to finish before making a call.

Notes:

1. The modes in ( ) are the new designations to be instituted with Phase 3D.

2. The AO-10 beacon is an unmodulated carrier. This satellite has suffered computer damage making it impossible to orient it for optimum service or solar illumination. It may mot be present for weeks at a time and may also disappear suddenly, apparently when it enters darkness. In order to preserve it as long as possible, do not transmit to it when you hear the beacon or the transponded signals FMing.

3. RS-10 and its backup RS-11, and RS-12 and its backup RS-13 are each mounted on common spaceframes, along with communication and navigation packages. RS-11 &13 are currently turned off. All of these packages have the capability of being operated in modes A, K, & T, with modes K & T running simultaneously.

4. Transmitters on both AO-16 & LU-19 are currently using Raised Cosine Mode.

5. AO-16 users are encouraged to select 145.900, 145.920 and 145.940 for uploading and 145.960 for directory and/or file requests.

6. DOVE is designed to transmit digital voice messages but, due to hardware and software difficulties, it has not yet met this objective.

7. Letters in [ ] represent digital formats, which are as follows:
[a] = 1200 bps PSK AX-25
[b] = 1200 bps AFSK AX-25
[c] = 9600 bps PSK
[d] = digital voice

Additional Satellite Information: