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Crown Broadcast FM150R

150-Watt FM Translator - Includes Built-In Receiver


The FM150R is an economical stand-alone 150W FM translator with a built-in receiver that delivers a high level of performance for today's broadcast needs.

Featuring low loss circuit boards and copper heat spreaders in the RF chain, it functions with less heat and improved life span. A robust power supply with switching voltage and power regulators for AC or DC operation let you use it anywhere power can be generated.

Main Features:
• Translator with built-in receiver
• Frequency Agile from front panel
• SWR metering from remote control
• Ability to control output power from remote control
• 5-Year warranty
• Meets or exceeds all FCC requirements
Frequency Range 87 to 108MHz (Japanese frequency available 74-90MHz as an option) Front panel agile
RF Power 15 to 150 watts with front panel adjustment
RF Output Impedance 50 Ohms unbalanced
VSWR 1.7:1 Maximum with automatic foldback at higher VSWR
Frequency Stability Better than +/- .1KHz over operating temperature range
Modulation Type Direct Frequency Modulation of Carrier
Modulation Indication LED Indicators with Peak indicators
FM S/N Ratio (FM noise) Better than 60 dB (70 to 80 dB typical)
Asynchronous AM S/N Ratio Better than 50 dB referenced to 100% modulation @ 100 Hz, no de-emphasis.
Synchronous AM S/N Ratio Better than 50 dB with 100% modulation @ 100 Hz, no de-emphasis (typical >60dB)
RF Harmonics/Spurious Products Better than –70 dB (80 dB typical)
RF Bandwidth +/- 120 KHz, better than –35 dB; +/- 240 KHz better than –45 dB
Temperature 0 to 50 degrees C
Humidity 0 to 80% @ 20 degrees C (non-condensing)
Maximum Altitude 10,000 ft (3,000 m)
AC power 100 to 120 or 220 to 240 volts AC +/- 10%, 50 to 60 Hz
Power factor Greater than 97% (lagging)
DC Power 36 to 60 VDC (60V required for full output)
Power Consumption 420VA
Regulatory Notification for FCC part 73 and 74 Meets FCC requirements
RF Output connector Standard type N, 50 Ohm
Chassis dimensions

5.25 x 16.5 x 17.5 inches (13.4 x 41.9 x 44.5 cm) exclusive of rack mounts but inclusive of connectors

Weight 29 pounds (13.2 Kg) shipping weight = 37 pounds (16.7 Kg)
Wide Band composite operation
Composite Inputs 1
Composite Input level 3.8 Vp-p for +/- 75KHz deviation
Composite total harmonic distortion + noise < 0.05% from 50Hz to 15 Hz (0.03 typical)
Sub-carrier inputs 3
Sub-carrier input level 3.8 Vp-p for +/- 75KHz deviation
Sub-carrier amplitude response +/- 0.3 dB from 40Hz to 100KHz
Monaural operation w/ built in Audio Processor
Audio Input impedance 50 Kohms bridging, balanced
Audio Input level 3.8 Vp-p for +/- 75KHz deviation
Audio Frequency response Conforms to 75uS pre-emphasis curve for +/- 0.25 dB from 50Hz to 15KHz
Pre-emphasis Selectable 50, 75 uS or flat
Stereo Operation w/ built in Audio Processor and Stereo Generator
Audio Input impedance 50 Kohms bridging, balanced
Audio Input level -10 dBm to +10 dBm selectable for 75KHz deviation @400Hz
Frequency response +/- 0.3 dB from 50Hz to 10KHz, +/-1.0dB from 10Hz to 15KHZ
Total Harmonic distortion + Noise 0.4% or less @ 15KHz (0.2 typical)
Stereo Separation Better than 40 dB from 50Hz to 15KHz
Linear Cross Talk Main to sub and sub to main, -40 dB or better from 50 Hz to 15 KHz
38 KHz Sub-carrier suppression >60dB
Pilot Stability +/- .5 Hz @ 9% modulation

*Please consult a broadcast engineer to determine if this unit is right for your application and you are meeting all of the appropriate legal requirements. You can review the FCC regulations on LPFM and unlicensed usage below.

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