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

High-Power TWTA Satellite Terminals Introduction
Rev. 1 1-19
1.4.3 Performance
1.4.3.1 Receive
The receiver performance is defined for the LNA input to the 70 MHz output of the RFT
units.
Note: Intervening cable losses due to installation variables must be considered when
comparing the performance data listed in Table 1-12.
Table 1-12. HPCST-5000/-7000 Receive Characteristics
Receive Characteristics
Input Frequency Range, RFT-500 3.625 to 4.200 GHz, in 2.5 MHz steps
Input Frequency Range, RFT-700 4.50 to 4.80 GHz, in 2.5 MHz steps
Frequency Sense No inversion
Input Level -127 to -80 dBm
RX Gain
Adj. (1 dB max. steps)
95 dB min.
0 to 15 dB min. (remotely controlled)
RX Freq. Stability ± 1 x 10 -8 at 23°C
Life RX Freq. Drift ± 1 x 10 -7 at 23°C
Gain Flatness ± 1.0 dB/36 MHz
+0.5 dB/4 MHz
RX IF Output Bandwidth 70
±
18 MHz at 1 dB
Noise Figure 65
°
K (other options available)
Transmit Freq. Reject 60 dB
Receive Image Rejection -45 dBc
Linearity (Third Order Intercept) -30 dBc for 2 tones at -88 dBm (with LNA)
Group Delay (any 36 MHz)
Linear
Parabolic
Ripple
IESS-309, Figure 3, < 10 ns
0.28 ns/MHz
0.025 ns/MHz
2
< 5 ns P-P
Synthesizer Lock Time < 1 second
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
Spurious (signal related) at 0 dBm RX IF
output -40 dBc
Inband Overdrive No damage to 0 dBm
Third Order Intercept +24 dBm minimum
RX IF Output at 1 dB Compression +17 dBm minimum