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2 specifications – Comtech EF Data KST-2000A/B User Manual

Page 24

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Ku- Band Satellite Transceiver

Revision 9

Introduction

MN/KST2000AB.IOM


1–10

1.2 Specifications

The basic KST-2000A/B specifications are listed in this section.

Table 1-2

Converter Unit Specification

Table 1-3

System Transmit Characteristics

Table 1-4

LNA Characteristics

Table 1-5

LNB Characteristics

Table 1-6

SSPA Characteristics

Table 1-2. Converter Unit Specifications

Converter Transmit Characteristics

Output Frequency

13.75 to 14.5 GHz in 1 MHz steps

Input Frequency

50 to 90 MHz (100 to 180 MHz optional)

Input Power Level

–25 to –45 dBm operational
–10 dBm survival

Gain

42 dB nominal at mid-range user
attenuation setting

User Attenuation Range

0 to 20 dB in 1 dB steps

Power Output at 1 dB Compression

+ 15 dBm minimum

Transmit Phase Noise

Exceeds IESS 308/309 requirements

Converter Receive Characteristics

Input Frequency

KST-2000A

10.95 to 12.75

GHz

KST-2000B

950 to 1700 MHz

Output Frequency

50 to 90 MHz (100 to 180 MHz optional)

Gain

45 dB maximum

User Attenuation Range

0 to 20 dB in 1 dB steps

Gain Variation with Frequency
(at a fixed temperature)

Any 40 MHz band
Entire operating band


2.0 dB peak-to-peak
3.0 dB peak-to-peak

Power Output at 1 dB Compression

+16 dBm minimum

Power Output Stability over
Temperature (at a fixed frequency)

4.0 dB peak-to-peak

Phase Noise

Exceeds IESS 308/309 requirements

Spurious Signals

Signal Related

Non-Signal Related

–50 dBc at –5 dBm output
–35 dBc at <250 kHz from carrier
–87 dBm max referenced to converter
input for the KST-2000A
–126 dBm max referenced to the LNB
input for the KST-2000B

Third Order Products

–33 dBc for two carriers each at +6 dBm

Auxiliary Output Monitor

Frequency
Gain
Connector

950 to 1700 MHz
20 dB relative to carrier input
Type N, female, 50

Ω