|Phase 4 AMSAT planed|
Qatar Satellite Company’s second satellite, Es’hailSat-2, will be placed in a geostationary orbit by a Space-X Falcon-9 rocket in December 2016. It will carry an AMSAT linear transponder as a secondary payload, giving Radio Amateurs access to a geostationary satellite for the first time.
Es’hailSat-2 will be “parked” 35 786 km above the equator at 25.5°East, nearly due North from Pretoria and Johannesburg (which are at 28°E).
Planned Frequency.This satellite will have two linear transponders. (250 Khz and 8Mhz wide)
Uplinks: 2400.050 - 2400.300 MHz modes SSB and CW. 5 Watt uplink power,
Downlinks: 10489.550 - 10489.800 centre 10 489.675 MHz. Vertical polarization.
Uplinks: 2401.500 - 2409.500 MHz
Downlinks: 10491.000 -10499.000 MHz
It will be so nice to have fixed antennas mounted on mast pointing to the satellite having continuous communication to any where in Africa and Europe. HI ;-) ;-)
Will have to start looking for some equipment and antennas for this one.
Here is a list of Equipment that should work for the P4A satellite.
X-Band 10 GHz Downlink:
HailSat-2 Downlink configuration.
- 89 cm dishes in rainy areas at EOC like Brazil or Thailand.
- 60 cm around coverage peak,
- 75 cm dishes at peak -2dB.
- Wide Band: linear horizontal polarisation.
S-Band 2.4 GHz Narrow Band-Uplink:
- Narrow band modes like SSB, CW
- 5W nominal Uplink power (22.5 dBi antenna gain, 75cm dish)
- RHCP polarisation
S-Band 2.4 GHz Wide Band-Uplink (DATV):
- Wide band modes, DVB-S2
- Peak EIRP of 53 dBW (2.4m dish and 100W) required
- RHCP polarisation
Azimuth and Elevation details for Johannesburg South Africa.
|Azimuth and Elevation from Johannesburg|
You can generate your own details here http://www.satlex.us/en/azel_calc-params.html?satlo=&user_satlo=25.5&user_satlo_dir=E&location=-26.16%2C28.03&la=-26.16&lo=28.03&country_code=za&diam_w=75&diam_h=80
More information http://amsat-uk.org/2015/07/03/phase-4-spacecraft-frequencies/
and here http://www.itu.int/en/ITU-R/space/workshops/2015-prague-small-sat/Presentations/Eshail-2.pdf