User guide

SPECIFICATIONS

OVERALL FM-AV4 SYSTEM

Operating frequency: 150 to 216 MHz

Wireless operating range: Up to 750 feet

FM deviation: + or - 15 KHz

Distortion: less than 1%

AMPLIFIER

Audio power output: 6 Watts, RMS

Amplifier freq. response: 50 Hz - 20 KHz; +0, -3 dB

Speaker: 6" x 9" full range cone

Audio outputs: XLR - 200 Ohm, balanced;

100 mV maximum

RCA - 1k Ohm, 1 Volt maximum

Audio inputs: RCA - high level "line"

1/4" - electret mic; + 5V bias

Power supply: Two 6 Volt "gel-cell" batteries

Operating time per charge: Up to 40 hours - 30 hours typical

FM870 RECEIVER

Sensitivity: 1.0 uV for 20dB SINAD

2.0 uV for 50dB S/N ratio

RF signal-to-noise ratio: 96dB flat, 100dB A-weighted

Squelch quieting: Greater than 100dB

AM rejection: -40dB (10 uV to 100 mV input)

Spurious/image rejection: Greater than 100dB

M170 TRANSMITTER

Operating Frequency: 150 to 216 MHz

RF Power Output: 50 mW

Deviation: + or - 15 KHz

Spurious radiation: 60dB below carrier

Frequency stability: + or - .002%

Equivalent input noise: -126dB

Input sensitivity: 8 mV to 1.6 V for full modulation

Input compressor: Soft compressor; 12dB range

Electret bias: +5 Volts DC (positive bias)

Antenna: Input cord or microphone

Size: 1.1 x 2.3 x 3.3 inches

Weight: 4 ozs. including battery

M170 and M170-XLR transmitters are FCC type accepted under the

following parts:

Part 90 (150-172 MHz)

Part 74 (174-216 MHz)