Comtech EF Data HPCST-5000 - Manual (Page 35)

High Power C-Band Satellite Terminal Introduction
Rev. 0 1–19
1.7.6 System Transmit Characteristics
TX characteristics for the system are provided in Table 1-10.
Note: 1 dB compression characteristic is measured at the output flange of the C-Band
SSPA.
Table 1-10. System Transmit Characteristics
Transmit Characteristics
Frequency Range 5.845 to 6.425 GHz, in 2.5 MHz steps
(125 kHz optional)
Small Signal Gain (10 dB backoff), Nominal 75W
79 dB 100W
80 dB 125W
81 dB 150W
82 dB
TX IF Input Level Range -35 to -25 dBm typical
Power Output at P
1dB:
(minimum) 75W
48 dBm 100W
49 dBm 125W
50 dBm 150W
51 dBm
TX IF Input Bandwidth at –1 dB 70
# 18 MHz (Optional: 140 # 36 MHz)
Gain: Stability (Overtemp)
Flatness
Variation
# 1.5 dB
# 1.5 dB/36 MHz
# 2.0 dB
Group Delay (any 36 MHz):
Linear
Parabolic
Ripple
% 30 ns
0.28 ns/MHz
0.15 ns/MHz
2
% 1 ns P-P
TX Frequency Stability # 1 x 10 -8
TX Synthesizer Lock-up Time % 1 second
Spurious (not inter-mods) :
At 6 dB backoff from P1 dB
With Carrier Off
Intermod Spurious with two equal carriers
Harmonics (out-of-band)
IESS-309, Para. 3.2.1
-40 dBc min. (
& 2.048 MHz inform. rate)
-50 dBc min. (
' 2.048 MHz inform. rate)
- 24 dBm/4 kHz (anywhere in satellite band)
- 32 dBm at 6 dB backoff
- 60 dBm at 6 dB backoff
Phase Noise (SSB) at:
10 Hz
100 Hz
1 kHz
10 kHz
100 kHz
(Maximum)
-30 dBc/Hz
-60 dBc/Hz
-70 dBc/Hz
-75 dBc/Hz
-80 dBc/Hz Or
% 2.8! rms (DSB)
integrated 10 Hz to 1 MHz