WR-G39WSBi Control Panel

The WiNRADiO MS-8118/WSB Sonobuoy Telemetry Multichannel Receiving System provides an elegant, fully integrated solution, specifically designed for reception and monitoring of VHF telemetry transmitters, in particular sonobuoy transmitters, on multiple channels.

This system is based on a 19" rack-mounted ruggedized industrial computer. The front panel features a high-contrast wide-angle display. There is a provision for connection of an external keyboard and mouse. The system is capable of simultaneous independent monitoring of up to eight channels in the sonobuoy VHF range of 136 to 173.5 MHz. Other frequencies are available upon request. The systems are scaleable and can be built into large simultaneously receiving multiple-channel receiver arrays.

The MS-8118/WSB control software and its intuitive graphical user interface make it possible for the user to control each individual receiver separately and observe its operational status, as well as set the system parameters for multichannel reception and monitoring operations.

An optional antenna distribution system is available which contains a low-noise preamplifier with extremely high linearity, and a power splitter with high isolation between outputs, to provide ideal matching of a single antenna to multiple receivers with minimum loss or signal deterioration.

The MS-8118/WSB Sonobuoy Telemetry Multichannel Receiving System is shipped in a specially designed ruggedized 19" rack-mounted chassis with built-in shock absorbers, to ensure safe transport.

The unit can then be either removed from the enclosure, or operated from inside it. This is particularly useful for fast-deployment mobile operations. For larger stationary installations, various rack-mount options are available (see an example of a larger multichannel receiver system installation pictured on the right).

Technical Specifications

Frequency range 136.000-173.500 MHz
Number of simultaneous channels 8
Channel spacing 375 kHz
Modes FM (DIFAR)
Sensitivity 0.9 µV
IF bandwidth 230 kHz @ -6 dB
Skirt selectivity 470 kHz @ -25 dB
730 kHz @ -60 dB
Frequency response 5 Hz to 25 kHz @ ±1 dB
5 Hz to 40 kHz @ ±2 dB
Output level 1.0 ± 0.2 V rms @ 75 kHz deviation and 1 kHz modulation frequency
RSSI range 80 dB typ.
Image rejection 70 dB or better
Tuning accuracy ±1 ppm
Frequency stability ±0.5 ppm
Input impedance 50 ohm
Output impedance 600 ohm
Connectors SMA for RF input and demodulator output; 3.5 mm audio jack for monitor output
Power requirements 100/120 or 220/240 V (switchable) @ 200 W
Dimensions 19" rack mount
Height: 4U (6.9" = 177 mmm)
Depth: 16.5" (415 mm)
Weight 43 lb (19.5 kg)
Ambient temperature Storage: -20° to +75° C
Operation: 0° to +45° C

Specifications are subject to change without notice due to continuous product development and improvement.