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Transponder
Transponder products include five kinds of products, the main function of which is to achieve Ground TT&C or TT&C for TT&C satellite.The working frequency band of these products covers S/Ka frequency band.There are two TT&C methods, which are simulation system and spread spectrum system. These products can be selected according to different needs, suitable for LEO, MEO, GEO satellites or spacecrafts.
Main Specifications of Transponder Products
|
Types Iterm |
YDJ-31-2-3 |
YDJ-33-1-1 |
YDJ-33-2-1 |
YDJ-33-3-1 |
YDJ-73-1-1 |
|
Working frequency |
S-band |
S-band |
S-band |
S-band |
Ka-band |
|
Modulation mode |
PCM-PSK-PM |
PCM-CDMA-BPSK |
PCM-CDMA-BPSK |
DS/BPSK |
PCM-CDMA-BPSK |
|
Remote receiving sensitivity |
≤-110dBm |
≤-112dBm |
≤-112dBm (Ground TT&C)； ≤-124dBm (TT&C for TT&C satellite) |
≤-120dBm (Ranging mode)； ≤-117dBm(Data mode) |
≤ -115dBm |
|
Output power |
≥27dBm |
0±2dBm |
≥27dBm (Ground TT&C)； 0±2dBm (TT&C for TT&C satellite) |
≥30dBm |
≥30dBm |
|
Harmonic and clutter suppression |
≥60dB |
≥40dB (Beyond30MHz) |
≥60dB (Beyond 30MHz) |
≥20dB (±15MHz) ≥50dB (±30MHz) ≥60dB (±60MHz) |
≥20dB (±60MHz) ≥40dB (±110MHz) |
|
Supply voltage |
28V |
28V |
28V |
28V |
28V |
|
Power |
≤22W |
≤12W |
≤25W |
≤23W |
≤38W |
|
Mass |
≤2.0kg |
≤1.0kg |
≤2.0kg |
≤2.0kg |
≤3.0kg |
|
Dimension |
160×65×100mm |
138×54.5×79mm |
160×61×100mm |
138×61×100mm |
200×155×86mm |
|
Development period |
T0+12months |
T0+12months |
T0+12months |
T0+12months |
T0+12months |