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Spacecraft Summary
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OSCAR
Designation:
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AMSAT-OSCAR
85
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Oscar
Number:
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AO-85
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International
Designator:
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2015-058D
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Norad
Number:
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40967
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Common
Name:
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Fox-1A
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Alternate
Name:
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Fox-1A
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Satellite
Type:
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CubeSat
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Launch
Date:
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8
October 2015
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Launch
Location:
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Vandenberg
AFB
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Launch
Vehicle:
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Atlas-5(401)
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Apogee:
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795.8
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Perigee:
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508.6
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Inclination:
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64.8
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Period:
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99.97
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Dimensions:
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10
cm X 10 cm X 10 cm
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Weight:
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1.33
kg
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Organization:
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AMSAT-NA
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Frequency
Information
Uplink
(MHz): 435.170
Downlink (MHz): 145.978
Beacon (MHz): 145.978
Mode: FM CTCSS 67.0Hz/200bps DUV/9k6 FSK
Call sign:
Status: Active
Suggested pre-programmed channel frequencies
for a typical AO-85 repeater mode pass.
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Transmit
Frequency (with
67 Hz tone) |
Receive
Frequency |
| AOS
(Mem.1) |
435.170 MHz |
145.980 MHz |
| Approaching
(Mem.2) |
435.175 MHz |
145.980 MHz |
| Passing
(Mem.3) |
435.180 MHz |
145.980 MHz |
| Departing
(Mem.4) |
435.185 MHz |
145.980 MHz |
| LOS
(Mem.5) |
435.190 MHz |
145.980 MHz |
The original AO-85 (Fox-1A)
frequencies were significantly different from the frequencies shown
above. See below notes:
Measurements after launch indicate
these centre frequencies may be a better choice:
435.170 MHz (+/- 10 kHz Doppler shift) FM Uplink 67
Hz CTCSS PL tone required
145.978 MHz (+/- 3 kHz Doppler shift) FM Downlink
Note: If your rig has selectable FM filters use the
wider filter for 5 kHz deviation 25 kHz channel spacing.
David Bowman G0MRF
reports that the AO-85 downlink appears to be 2 kHz low of the
nominal frequency on about 145.978 MHz. This
suggest that for those with radios which have 5 kHz tuning steps
best results might be obtained by tuning to 145.980 MHz at
the start of the pass and then tuning to 145.795
MHz mid-way through the pass.
Measurements made by Alan
Biddle WA4SCA indicate the downlink is consistently 1.400
kHz low at 145.9786 MHz. Reports indicate the uplink may be 10 kHz
low of nominal frequency – 435.170 MHz.
See AMSAT for latest Operational OSCAR
Satellite Status Summary
http://www.amsat.org/amsat-new/satellites/status.php
See AO-85 (Fox-1A) details: http://www.amsat.org/?page_id=4690
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