50W Professional FM Broadcast Power Amplifier

Inc. Delivery to UNITED STATES

1 Watt Drive (can be more on request!)

All our amplifiers use a standard input of 1W. This means for 1W of drive power this amplifier will produce 50W of RF output 24/7 whilst maintaining international technical standards.

Should you need a different input power level, there is no issue, as we can readily accommodate your request. Simply send us an email or message us using the box below.

Temperature Resilience

The power output of this model is 1kW continuous day and night non stop 24/7. It has reflected power protection and it has over temperature protection. In the event of any of these protections being activated, the power will reduce to a safe level to prevent any damage. When the fault that triggered the protections clears, the power restores automatically back to full.

VSWR Resilience

The final output section of this model uses a MRF151 rated at 150W. This MOSFET RF power transistor is designed for the toughest engineering environments and has stood the test of time and can survive severe load mismatches, short, open or any phase angle of VSWR. This model runs the MRF151 at only 50W which means it run forever without any failure. The amplifier can be set at lower power levels, right down to 10W if required.

High Stability

Regardless of high temperature, high VSWR poor antenna and mismatch conditions or poor AC power, the power level of 50W will remain stable all the time and the RF signal will never pollute the spectrum with instabilities. The output amplifier in this unit is designed to work in hostile conditions and environments. The BBC, British Army and US Army Delta Company all purchased these units for use in Iraq and Afghanistan.

Global Voltage Compatibility

All AC version of this product is truly globally compatible, you can plug it into any AC outlet in the world from 90 to 260V at 50 or 60Hz

Antennas

The model will work with our 50 ohm antennas listed below:

Vertical 5/8 Wave
Single Tuned Dipole
2 Way Stacked Dipole
4 Way Stacked Dipole
8 Way Stacked Dipole
Circular Dipole
Folded Dipole

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Compliance

This amplifier complies with EMC, Voltage Safety and RTTE Harmonised Standards laid down by the European Union. It's CE marked with a Declaration of Conformity. More information HERE

All stated measurements were made at 220VAC at 27 Degrees Celsius ambient temperature unless stated.

User Manual	Click Here
RF Power Output	Adj. 50 Watts into 50 ohms
Power Input	900 to 1400mW (1.4W MAX.)
Spurious Emissions	Less than -75 dB ref to carrier
Harmonic Emissions	Less than -70 dB ref to carrier
Freq Range	87.5 to 108 MHz
Residual AM	Less than 0.5 %
Synchronous AM	Less than 0.5 %
RF Ruggedness	Any VSWR phase for length of time
Output Connector	DIN-716
Input Connector	BNC
Operating Temp	-20 to +40 Deg C
AC Input Voltage	90-264 V AC 47-63 Hz
AC Input Power	90W Continuous for 50W 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