Comtech EF Data HPCST-5000 - Manual (Page 23)

High-Power TWTA Satellite Terminals Introduction
Rev. 1 1–7
The RFT power level at 1 dB compression to drive the external TWTA is +8 dBm. The
up and down converters are dual conversion, and are configured with individual
synthesizers for independent transmit and receive transponder selection.
For more information on RFTs, refer to the following manuals:
•
CST-5000 C-Band Satellite Terminal Installation and Operation Manual
•
CST-7000 C-Band Satellite Terminal (INSAT) Installation and Operation
Manual
•
KST-12000 Ku-Band Satellite Terminal Installation and Operation Manual
1.2.3 TWTA Models
The TWTA is an all-weather, high-power system specifically designed for compact
outdoor installation for earth station satellite communication. Because of the
compactness, the unit can be mounted on the antenna, thus reducing transmission losses
to the antenna feed. This outdoor unit contains:
•
RF filters
•
Self-contained forced air cooling system
•
Control inputs
•
Monitor output signals
EFData offers six TWTA models that operate in the satellite earth station uplink bands.
Specific models and options are identified by the EFData part number in Table 1-3.
Table Chapter 1-3. TWTA Models
Band Model # EFData
Part #
Frequency Rated RF
Power (Min.)
C-Band HPA-500
HPA-500
HPA-700
HPA-700 RF/XT-100C
RF/XT-400C
RF/XT-100CI
RF/XT-400CI 5.845 to 6.425 GHz
5.845 to 6.425 GHz
7.9 to 8.4 GHz
7.9 to 8.4 GHz 140W
350W
140W
350W
Ku-Band HPA-1200
HPA-1200 RF/XT-100K
RF/XT-400K 14.0 to 14.5 GHz
14.0 to 14.5 GHz 100W
300W
Note: Manufacturing changes which do not impact component interchangability are
reflected in the revision level of the power amplifier part number. EFData maintains a
configuration log by serial number to track the applicable revision level for each power
amplifier. Please include the amplifier serial number when ordering parts or discussing
the amplifier with EFData representatives.
Prime input power to the unit is AC, as follows:
•
115 or 230VAC for the 100W unit