The paper covers global band planning considerations and among the recommendations says:
Emphasise that spaceborne APRS must be confined to globally coordinated amateur satellite sub bands. Therefore items that are ambiguous and generate confusion in national band plans such as ‘Space communications’ and ‘New Oscar Sub band’ should be removed as soon as possible in all Regions in accordance with IARU-AC and Satellite Coordination guidance
It is believed that ‘New Oscar Sub band’ refers to the USA’s ARRL 144 MHz band plan and ‘Space communications’ to the Australian WIA 144 MHz band plan. These band plans, as well as those for some other countries, show 144.300 – 144.500 MHz as being for Amateur Satellite use.
This page will be maintained by multiple volunteers, including myself, and we will be able to add and delete satellites as required, as well as keep information links current. It will take a few days to populate the database, but please begin using this page as soon as possible. In the near future the old page will point to this one for a while, until people get used to the new address.
There are still some satellites to add and delete, so this will be a work in progress for a bit. First and foremost we will delete the reentered sats, and add Fox-1A for next Thursday [Oct 8]!
E-members of AMSAT-UK can now download the Summer edition of OSCAR News here. In this issue is a picture of Brent Salmi KB1LQD and Bryce Salmi KB1LQC at the National Radio Centre in Bletchley Park where they met up with AMSAT-UK’s Graham Shirville G3VZV.
The paper edition should be posted to members in 2-3 weeks.
In this issue:
• Prof Colin Pillinger obituary
• AGM Calling Notice
• AO7 40th Birthday
• Astronaut Wubbo Occels remembered
• AMSAT-UK satellite Projects update
• UK CubeSat Forum report
• FUNcube-1 Lessons learnt
• DUO 817 Satellite Controller
• FUNcube-1 Activity report
• The FUNcube Dongle and SDR Software School Experiments at UCF in Cuba
• FUNcube Turnstile announcement
• Colloquium 2014 Booking Details
AMSAT-UK FUNcube Mission Patch
Membership of AMSAT-UK is open to anyone who has an interest in amateur radio satellites or space activities, including the International Space Station (ISS).
E-members of AMSAT-UK are able to download OSCAR News as a convenient PDF that can be read on laptops, tablets or smartphones anytime, anyplace, anywhere. Join as an E-member at Electronic (PDF) E-membership
AO-27 transmits with a power output of 0.5 W into a quarter-wavelength whip antenna. Satellites are approximately 500 miles (800 km) distant when directly overhead and over 2,000 miles (3,200 km) distant when near the horizon. For use on AO-27 with a half-wavelength whip, your receiver sensitivity at 436 MHz should be at least 0.18 uV for 12 dB SINAD, which corresponds to the approximate signal strength of AO-27 at 10 degrees elevation when your whip antenna is correctly positioned for the polarization of the incoming signal. At the horizon, AO-27’s signal strength, under similar conditions, is approximately 0.13 uV. Most modern, high-quality amateur radio transceivers will meet these specifications if designed to operate at this frequency (i.e., without modifications). Most scanners, and most radios which have had to be modified to cover 436 MHz, will not.
AO-27 transmits FM on about 436.795 MHz, plus/minus Doppler shift of up to 10 kHz on either side. Their uplink frequency is 145.850 MHz, plus/minus Doppler corrections of up to approximately 3.4 kHz.
by Ray Soifer, W2RS
The Spring edition of the AMSAT-UK colour A4 newsletter OSCAR News is being posted to members this week.
In this issue
– Dick Daniels W4PUJ SK
– VEGA Maiden Flight Report
– My way to solve the TLE lottery by Mike DK3WN
– Your Spacecraft recording wanted, urgently
– Getting back on the Satellites by Andrew Sellers G8TZJ
– FUNcube satellite project update
– The Clive Wallis G3CWV Column
– A Swiss satellite to tackle space debris
– ARISSat-1/KEDR goes silent
– FUNcube satellite models part 2
– KickSat – your personal spacecraft in space!
We are looking for articles relating to ham radio satellites or anything related to ham radio in space. This can be anything from tips on working your favorite satellite
to using satellite tracking software or your latest project.
Qtmm is a simple AFSK1200 decoder that uses the computer’s sound card for input. It can be used to decode packet radio, APRS and telemetry from OSCAR and Cubesats.
Testing shows a good performance in monitoring the International space station APRS Beacon. More @ Qtmm soundcard modem for decoding AFSK1200
Telemetry reception from the AO-27 amateur radio satellite, which also uses AFSK.