The image shown is the 200W FM transmitter MPX or Stereo versions with the digital frequency display, product codes 200wplld19p and 200wpllsd19p in the price list below.

MPX Version

This is the lowest cost of all the versions available, but is not intended for the novice or beginners, in fact this unit is for stations with more engineering experience. The audio input to this is a direct raw MPX signal and does not include any audio limiting or stereo coder circuitry, this must be provided externally in accordance with the recommendations of http://www.aareff.com/ETR132.pdf.

Stereo Version

FM Transmitter Stereo Version – This is similar to the Mono/MPX version except it is stereo and RDS cannot be used with this. Again stations with more engineering experience may use this version, this is because it does not include audio limiting. Again the audio limiting for this version must be externally provided and in accordance with the recommendations of http://www.aareff.com/ETR132.pdf. This version is typically used with external multi band processors and stereo generators such as the brands Orban or Inovonics. Not recommended for novice stations or beginners.

Stereo and Audio Processing

FM Transmitter Stereo Version with Audio Compression and Limiting – Most small radio stations and beginners will use this version, this is because it includes audio processing circuitry and suitable limiting to keep the transmitter in compliance with the maximum bandwidth permitted by the international regulations. There is also access to the MPX in and out on the back panel which allows all known RDS units to be connected. Novice stations with limited experience of FM broadcasting transmitters should purchase this version.

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Operation

This transmitter produces 200 watts of transmitter power and will operate with ease at full power 24 hours a day non stop in any country and with any AC voltage in the world. The unit has a neat little meter on the front panel lit up with intense blue LED’s to indicate forward and reflected power. The RF output power of the amplifier automatically folds back to a safe level when there is fault condition of poor SWR and return loss of any level for any duration of time. When the fault clears the amplifier restores to full power.

Made To Last !

Over the last 12 years in Africa and Middle East alone we sold our systems into Congo, Uganda, Liberia, Zambia, Yemen, Rep South Africa, Oman, United Arab Emirates, Tanzania, Southern Sudan, Kenya, Ghana, Gambia, Nigeria and Niger. Our transmitters are very popular in very hot climates as they handle the heat and the dust very well under 24/7 operation.

Version
MPX
Stereo
Stereo and Audio Processor

Signal To Noise Ratio
80dB
65dB
65dB

Frequency Response
30Hz-76KHz
30Hz-15KHz
30Hz-15KHz

Audio Distortion
0.02% THD Max.
0.02% THD Max.
0.02% THD Max (at MPX section).

RF Technical Specification

Audio Input Sensitivity
+4dBu for +/- 75KHz dev.

Freq Stability
+/- 1KHz max. typ. +/-300Hz

Deviation Sensitivity Stability
+/-2% max

Freq Fine Adj
> +/- 1000Hz

Pre-emphasis
(50uS/ 75uS/ None) Selectable

Audio Input Connector
Phono/ RCA type unbalanced sockets

Power Output
Adj. 20-200 Watts into 50 ohms

Freq Range
87.5 to 108MHz

Spurious Emissions
Less than -75dB ref to carrier

Harmonic Emissions
Less than -70dB 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

AC Technical Specification

Input Voltage
90 to 260 VAC 47-63 Hz 124 to 370 VDC

Input Power
380-420W for 200W RF OUT with RF SWR < 1.5 Power Factor PF>0.95/230VAC PF>0.98/115VAC at full load

Working Humidity
20 ~ 90% RH non-condensing

Safety Standards
UL60950-1 TUV EN60950-1 Approved

EMC Conduction & Radiation
Compliance to EN55022 (CISPR22) Class B

EMC Harmonic Current
Compliance to EN61000-3-2 -3

EMC Immunity
Compliance to EN61000-4-2 3 4 5 6 8 11; ENV50204 Light industry level criteria A

Compliance

All these models comply with European standards ETS 300384 for R&TTE, EN 301 489-11 for EMC and (LVD) 2006/95/EC for safety and ITU-R BS.450-3 (11/01) FM Broadcasting at VHF