Två nya satelliter som bygger på AMSAT-UKs FUNcube-bas är på gång och de erbjuder båda intressanta amatörradiomöjligheter:
UKube-1 planerad uppskjutning oktober 2013:
UKube-1 will carry a set of AMSAT-UK FUNcube-2 boards which will provide:
• 1200 bps BPSK telemetry beacon on 145.915 MHz
• Linear transponder downlink 145.930-145.950 MHz for SSB/CW communications
• Linear transponder uplink 435.080-435.060 MHz
In addition UKube-1 also carries:
• ISIS 1200 bps BPSK telemetry beacon on 145.840 MHz
• UKSEDS myPocketQub 442 on 437.425-437.525 MHz with 11 mW output using spread spectrum
• 1 watt transmitter on 2401.0 MHz from Cape Peninsula University of Technology (CPUT), Cape Town, for high data rate mission data downlinking using up to 1 Mbps QPSK or OQPSK modulation
Further information on UKube-1 at http://amsat-uk.org/2013/07/18/ukube-1-launch/
QB 50 planerad uppskjutning under 2014:
The AMSAT-Francophone (AMSAT-F) payload for one of the satellites will be an FM voice relay with VHF uplink and UHF downlink. It will also transmit FX25 telemetry at 9.6kbit. This secondary payload will be also used in several satellites in the main constellation as their main receiver and transmitter.
The AMSAT-NL payload, on the other precursor satellite, will incorporate an SDR based, linear, V/U, transponder core and is being designed to allow the uploading of firmware updates to enable enhanced performance and functionality. It will also provide a telemetry downlink at 1.2kbit using FUNcube compatible BPSK modulation.
The QB50 spacecraft in the main, short duration, mission will, generally, have downlinks operating on frequencies in the 435-438 MHz Amateur Satellite Service allocation and some are expected to use 2.4 GHz. They will be notified to the ITU as a Belgian network after having been coordinated by the IARU Frequency Coordination Panel. Some of these will also, on occasions, act as FM voice relays during their missions.
See http://amsat-uk.org/2013/07/20/qb50-amateur-radio-transponder-payloads-to-launch-2014/
Källa: AMSAT-UK