Crown Broadcast FM150T

A great choice for the lower power broadcaster, the FM150T is an economical stand-alone 150W FM transmitter
with a built-in audio processor and stereo generator that delivers a consistently high level of performance.

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.


To see the owners manual for the Crown FM 30, click on this Crown FM30 / FM150 / FM300 Owners Manual

Main Features:
• Transmitter with a built-in audio processor and stereo generator
• Frequency Agile from front panel
• SWR metering from remote control
• Ability to control output power from remote control
• 3-Year warranty
• 24-hour service support
• Meets or exceeds all FCC requirements

FM150 TECHNICAL SPECIFICATIONS
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