Es’hail 2

Es'hail-2 Geostationary Satellite - credit Es'hailSat

Es’hail-2 Geostationary Satellite – credit Es’hailSat

The geostationary satellite Es’hail-2 carrying amateur radio transponders launched from Kennedy Space Center at 20:46 GMT on Thursday, November 15, 2018 and is now in a geostationary orbit at 25.5° East. These are the first amateur radio transponders to be put into geostationary orbit and they are expected to link radio amateurs from Brazil to Thailand.

Es'hail-2 coverage areaEs’hail-2 will carry two “Phase 4” amateur radio transponders operating in the 2400 MHz and 10450 MHz bands. A 250 kHz bandwidth linear transponder intended for conventional analogue operations and an 8 MHz bandwidth transponder for experimental digital modulation schemes and DVB amateur television.

Narrowband Linear transponder
 2400.050 -  2400.300 MHz Uplink
10489.550 - 10489.800 MHz Downlink

Wideband digital transponder
 2401.500 -  2409.500 MHz Uplink
10491.000 - 10499.000 MHz Downlink

Read this article Eshail-2_Transponder_Information

Equipment requirements:

Es'Hail-2 Geostationary P4-A Transponder Frequencies

Es’Hail-2 Geostationary P4-A Transponder Frequencies

X-Band 10 GHz Downlink:
– 89 cm dishes in rainy areas at EOC like Brazil or Thailand
– 60 cm around coverage peak
– 75 cm dishes at peak -2dB
– NB: linear vertical polarisation
– WB: linear horizontal polarisation

S-Band 2.4 GHz NB-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 WB-Uplink (DATV):
– wide band modes, DVB-S2
– peak EIRP of 53 dBW (2.4m dish and 100W) required
– RHCP polarisation

Coming soon Es’hail-2 WebSDR

AMSAT-DL Phase 4A Es’hail-2 geostationary satellite amateur radio transponder slides

AMSAT-DL Phase 4A leaflet

Presentation on Es’hail-2 by Peter Guelzow DB2OS, President of AMSAT-DL, at the 2013 AMSAT-UK Colloquium

SpaceX Mission Timeline

Es’hailSat announces tender process for Es’hail-2

Es’hailSat – the Qatar Satellite Company

Phase-4A GeoSat S mode uplink converter developed by JH1CEP. S mode uplink converter developed by JH1CEP. Assembled power line and local oscillator by JA1OGZ

Phase-4A GeoSat S mode uplink converter developed by JH1CEP
Assembled power line and local oscillator by JA1OGZ