20 Watt Professional Broadcasting FM Transmitter




20W FM Stereo Broadcasting Transmitter with Audio Processing Front Panel


Description

This is a popular choice in Nigeria for campus type university radios that are licensed by the state for 20 watts. Using this 20 watt transmitter with our 4 way stacked dipole is a popular choice producing a total EIRP of approximately 80 watts.

The stereo version with audio processing and limiting meets all the regulatory standards required. This is a strong, durable and dependable unit that will operate 24/7 without any shutdown for years

It's easy to change the frequency and power level from the controls located on the underside of the unit. More information this and other parameters can be found in the user manuals at Stereo with Audio Processing Version and MPX Composite Input Version.




Rear Panel of 20W FM Stereo Broadcasting Transmitter with Audio Processing


Which Version Do You Need?

Stereo and Audio Processing Version
MPX Composite Input Version
more information

Five Year Warranty

Five Years! Warranty
5 year limited warranty
more Information




20W FM MPX Broadcasting Transmitter Frnt Panel


Antennas

On delivery the equipment is ready to plug in and use with any suitable 50 ohm antenna system such as our:
SINGLE DIPOLE
4.8dBi 2 DIPOLES
7.8dBi 4 DIPOLES
10.8dBi 8 DIPOLES
4.8dBi 5/8 ANTENNA
-0.8dBi CIRC. DIPOLE


Our system package the 20W EIRP system includes this transmitter with a dipole antenna and very low loss LMR400 cable to give you a full system that will comply with the regulations of the European Union and most other countries in the world.

Do You Have A Question?




RF Technical Specifications

Audio Input Sensitivity +4 dBu for +/- 75 KHz dev.
Freq Stability +/- 1 KHz max. typ. +/-300 Hz
Deviation Sensitivity Stability +/-2 % max
Freq Fine Adj > +/- 1000 Hz
Pre-emphasis (50 uS/ 75 uS/ None) Selectable
Audio Input Connector Phono/ RCA type unbalanced sockets
Power Output Adj. 1-12 Watts into 50 ohms
Freq Range 87.5 to 108 MHz in 100 KHz steps
Spurious Emissions Less than -75 dB ref to carrier
Harmonic Emissions Less than -70 dB ref to carrier
Out of Lock RF Muting Less than -70 dB ref to carrier
Residual AM Less than 0.5 %
Synchronous AM Less than 0.5 %
RF Ruggedness Any VSWR phase or length of time
Output Connector SO239 (or optional N type)
Input Connector BNC 50 ohms
Operating Temp -20 to +40 Deg C

AF Technical Specifications

More information HERE on compliance with regulatory standards.

Version MPX Stereo and Audio Processor
Signal To Noise Ratio80dB 65dB
Frequency Response 30Hz-76KHz 30Hz-15KHz
Audio Distortion 0.2% THD Max0.2% THD Max (at MPX section)

AC Technical Specification

Input Voltage 90-264 V AC 135-370 V DC 47-63 Hz
Input Power 40W for 20W RF OUT with RF SWR less than 1.5
Working Humidity 20-90% RH non-condensing
Safety Standards UL60950-1 TUV EN60950-1 BSMI CNS14336 CCC GB4943 J60950-1 approved
EMC Emission Compliance to EN55022 class B EN61000-3-2 3 FCC PART 15 / CISPR22 class B CNS13438 class B GB17625.1
EMC Immunity Compliance to EN61000-4-2 3 4 5 6 8 11 light industry level criteria A