ARLA/CLUSTER: Novos satélites chineses para radioamadores serão lançados a 15 de Setembro de 2020

[João Costa > CT1FBF]

New Chinese amateur satellites expected to launch in September

Two new Chinese amateur radio satellites are now expected to launch on
September 15, 2020.

The first of these satellites, *CAS-7A*, is a 27 kg microsat (750 mm x 650
mm x 260 mm) with three-axis stabilization and several transponders.
The transponders include a 15m to 10m linear transponder (H/t), a 15m to
70cm linear transponder (H/u), and a 2m to 70cm linear transponder(V/u).
The satellite also includes a 2m to 70cm (V/u) FM transponder.

Several beacons and data downlinks are also featured, CW beacons on 10m and
70cm, 4.8k or 9.6k GMSK telemetry on 70cm, and a 1 Mbps GMSK image data
downlink on 3cm for the on board camera.
IARU coordinated frequencies for the uplinks and downlinks are listed below.

This launch is also expected to carry *CAS-7C*, a 2U CubeSat with a V/u
linear transponder and a CW beacon. Frequencies for CAS-7C have not been
coordinated by the IARU at the time of this writing. CAS-7C will also
deploy a 1 mm diameter 1080 meter long carbon fiber rope.

CAS-7A and CAS-7C will launch from Jiuquan Satellite Launch Center into a
500 km sun-synchronous orbit with an inclination of 98 degrees.

Frequencies:

CAS-7A H/t Linear Transponder
Uplink - 21.245MHz through 21.275 MHz
Downlink - 29.435MHz through 29.465 MHz
CW Beacon 29.425 MHz

CAS-7A H/u Linear Transponder
Uplink - 21.3125 MHz through 21.3275 MHz Downlink - 435.3575 MHz through
435.3725 MHz CW Beacon 435.430MHz

CAS-7A V/u Linear Transponder
Uplink - 145.865 MHz through 145.895 MHz Downlink - 435.385 MHz through
435.415 MHz CW Beacon 435.430MHz

CAS-7A V/u FM Transponder
Uplink 145.950 MHz
Downlink 435.455 MHz

4.8k / 9.6k GMSK telemetry downlink - 435.480 MHz
1 Mbps GMSK image data downlink - 10460.00 MHz

ANS, IARU
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