Frequency Converters Model 4100 — Ku-band Downconverter

(For beacon receivers, please see

Frequency Converters from Satellite Systems Corporation

The Model 4100 is a full Ku-band downconverter, selectable in two sub-bands through front-panel control or remotely over a monitor-and-control bus.

The Model 4100 accepts an input frequency range of 10.7 GHz to 12.75 GHz, and supplies an output frequency range of 950 – 2000 MHz in two bands.

Form “C” relay contacts provide Fault Alarm output. A front-panel LCD displays operating band, and normal or alarm status.

Also see: data sheets.


Input Frequency 10.7 – 12.75 GHz
Input Level -50 to -100 dBm typical
Gain nominal 10 dB
Alarms Form-C relay contacts
Input Frequency Range
Band 1 Input 10.7 – 11.7 GHz
Band 2 Input 11.7 – 12.75 GHz
Output Frequency Range
Band 1 Output 950 – 1950 MHz
Band 2 Output 950 – 2000 MHz
Internal LO frequency
Band 1 9.75 GHz
Band 2 10.75 GHz
Alarm Connector Modular socket & plug
Input Connector Type “SMA” Female, 50 ohm
Optional Type “N” Female, 50 ohm
Output Connector Type “F” Female, 75 ohm
Remote monitor-and-control serial interface is supported.
Dimensions 1 RU, 19″ X 16″ X 1.75″
Power 90-260 VAC, 47-63 Hz, auto-sensing, 45 Watts Max
Weight 10 Lbs

Valid Options

Monitor and Control
RS-232 & RS-485 both included, selected via front-panel menu options. Available baud rates of 1200, 2400, 4800, 9600 and 19200 are selected via front panel menu options. Extended RS-485 addressing range of hexadecimal 01 – FF. Remote Port polling active in Local Mode.
Input Connector
N 50 ohm N female connector
S 50 ohm SMA female connector.

Part Numbering
Typical part number: 4100-S

Base Model Input Connector
4100 0 or N

Other frequency ranges are available.

Please note: for unused options, the 0 placeholder must be inserted.