Comtech EF Data HPCST-5000 - Manual (Page 38)

Introduction High-Power TWTA Satellite Terminals
Rev. 1 1-22
Table 1-14. HPA-500, -700 Transmit Characteristics
Transmit Characteristics
TWT Rated Power 170W 400W
Rated Output Power at Flange:
Gain (minimum):
Large signal (LSG)
Small signal (SSG)
Maximum SSG Variation:
Any 40 MHz band
IF full Band
Slope
Stability (24 hr)
Stability, Temp
140W
42 dB min.
46 dB min.
1.0 dB max.
2.5 dB max.
0.04 dB/MHz max.
± 0.25 dB max.
± 1.0 dB max.
350W
47 dB min.
52 dB min.
1.0 dB max.
2.5 dB max.
0.04 dB/MHz max.
± 0.25 dB max.
± 1.0 dB max.
Inter-modulation:
(with two equal signals)
-18 dBc max. with two equal carriers at 4 dB total output
backoff
Harmonic Output 60 dBc min.
AM to PM Conversion 2.5°/dB at 6 dB below rated power
Group Delay:
Linear (LDD)
Parabolic (PDD)
Ripple
(any 40 MHz)
0.01 ns/MHz
0.005 ns/MHz
2
≤ 0.5 ns p-p
Noise Power:
Transmit band
Receive band -80 dBW/4 kHz
-160 dBW/4 kHz -70 dBW/4 kHz
-150 dBW/4 kHz
Residual AM Noise -50 dBc to 10 kHz
-20 (1.5 + logf) dBc to 500 kHz
-85 dBc above 500 kHz
Phase Noise 10 dB below IESS phase noise profile
AC fundamental -50 dBc
Sum of all spurs -47 dBc