Comtech EF Data CST-5000 - Manual (Page 27)

CST-5000 C-Band Satellite Terminal Introduction
Rev. 9 1–11
Table 1-2. RFT-500 Specifications (Continued)
Monitor and Control
Control Interface EIA-232, EIA-485, or optional keyboard
Control Functions SELECT PARITY
RF OUTPUT LNA PWR
U/C FREQ LNA FLT
D/C FREQ CALIB.
U/C ATTN REF ADJ
D/C ATTN XFLT EN
PROGRAM RSW MODE
BAUD LOCK MODE
ADDRESS
Monitor Functions U/C TEMP TUV
D/C TEMP TDV
HPA TEMP TIV
Fault Detect Functions RESTART U/C LOCK
UPLINK U/C TUN
DOWNLINK D/C LOCK
5V PWR D/C TUN
12V PWR IF LOCK
HPA IF TUN
LNA
Table 1-3. LNA Specifications
LNA Dimensions Refer to Figure 1-5 or 1-6, respectively
Frequency 3.620 to 4.200 GHz
Noise Temperature (with TRF) 65 ° K maximum (lower temperatures optional)
Gain 50 dB minimum, 54 dB nominal
(optional 60 db)
Gain Flatness ± 1 dB/575 MHz
Gain vs. Temperature ± 3 dB maximum
1 dB Compression Point +10 dBm minimum
Third Order Intercept +20 dBm minimum
Group Delay:
Linear
Parabolic
Ripple ± 0.01 ns/MHz maximum
0.001 ns/MHz 2 maximum
0.1 ns P-P
Input VSWR 1.25:1
Output VSWR 1.25:1
Input Connector CPR229G (hold pressure to 0.5 PSIG)
Output Connector Type N
Spurious Below thermal noise/100 kHz
TRF Rejection 60 dB