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Category: AM / FM Radio

 
FMT Series Low Power FM  Mono/Stereo Transmitters

 

FMT10 FRONT VIEW

        The Linear Broadcast FMT series of low power  FM Transmitters are designed to fill the needs of the broadcaster requiring high performance and reliability at a cost effective price. The FMT unit is self-contained in a 1RU rack case and provides fully adjustable power output and a user-programmable Phase Locked Loop frequency via simple internally accessible rotary switches.
        As with nearly all our FM transmitters, a stereo encoder can be added inside the FMT unit if stereo broadcast is required and an external encoder is not being used. The LCD display on the front panel displays frequency, RF power, audio levels and supply voltage. This allows the user to quickly confirm the transmitter status. If remote monitoring is required, the information on the LCD screen is repeated on an RS232 serial data stream from the 9 pin connector on the rear panel.

         These transmitters are fitted with an audio processing system which prevents overmodulation and keeps the modulation at a consistently high level. Noise and distortion are thus kept low over a wide range of audio input levels.

 

 

SPECIFICATIONS:

     

Audio Input:

Mono (RCA)
MPX (BNC)

200mV to 1V, 47kW unbalanced
1V to 4V p/p 10k
W

Controls:

 

Audio input level, RF output power, freq.  4 rotary switches for frequency

Frequency Range:

 

87 to 108MHz in 100kHz steps

Carrier Freq. Stability:

 

0.0005%

PLL Phase Jitter:

 

0.001%

Spurious:

 

< -65dBc

Pre-Emphasis:

 

Flat / 50ÁS

Frequency Response:

Mono
MPX

30Hz to 15kHz
30Hz to 65kHz

Total Distortion:

 

<0.04%

Signal to Noise:

 

> 68dB (Mono & MPX)

Power Supply:  100 to 240V AC, 50Hz,  IEC 3 pin socket

Dimensions:

 

1RU rack case x 250mm deep

                                      FMT2                     FMT5                      FMT10       

Weight:                                   4kg                               4kg                                5kg

RF Power Output:             0.1 - 2W                      0.1 - 5W                        0.1 - 10W

Power Consumption:       11VA                           17VA                             23VA