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50W Professional FM Broadcast Power Amplifier
- 1W INPUT FOR 50W OUTPUT
- LOW DRIVE, HIGH GAIN
- 12V, 24V, 48VDC or 90-260VAC OPTION
- SUPER SILENT OPTION
- INCLUDES SHIPPING
- 5 YEAR WARRANTY
- EXCEEDS CE/FCC TECHNICAL SPECIFICATION
- ROBUST STEEL ENCLOSURE
- BUILT TO LAST
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LIMITED WARRANTY |
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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.
If you require a different input power level, no problem, we can do that easily. Just email or message us in the box below for more details.
Temperature Resilience
The first version of this unit was designed for use in the middle of East Africa, so we had to make it good, in fact not just good, amazingly good. We didn't disappoint our client, it was installed 5 years ago and is still fully operational, running day in and day out in the heat of Africa. If the ambient goes beyond 40C, the internal temperature protection starts to back off the RF power, gently, not any abrupt cut out, just a little to keep the internal temperature below 70C.
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
This product's AC version is truly versatile and can be used with any AC outlet globally, accommodating a voltage range between 90 to 260V and 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
Do You Have A Question?
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 |
