Instruction Manual

SPECIFICATIONS
OVERALL FM-AV4 SYSTEM
Operating frequency: 169 to 186 MHz
Wireless operating range: Up to 750 feet
FM deviation: ±15 KHz
Distortion: less than 1%
AMPLIFIER
Audio power output: 9 Watts, RMS
Amplifier freq. response: 50 Hz to 20 KHz
Speaker: 8" full range cone
Audio outputs: XLR - 200 Ohm, balanced;
100 mV maximum
RCA-1kOhm,1Voltmaximum
Audio inputs: RCA - high level "line"
1/4" - dynamic mic
Power supply: Two 6 Volt "gel-cell" batteries
Operating time per charge: 12 to 15 hours typical
FM875 RECEIVER
Sensitivity: -110 dBm for 20 dB Sinad (0.7 uV)
RF signal-to-noise ratio: 96dB flat, 100dB A-weighted
Squelch quieting: Greater than 100dB
AM rejection: Below the noise at all input levels
Spurious/image rejection: Greater than 100dB
M175 SERIES TRANSMITTERS
Operating frequencies: 169 to 186 MHz
RF Power Output: 50 mW
Deviation: ±15kHz
Spurious Radiation: 50dB below carrier
Frequency Stability: ±0.005%
Equivalent Input Noise: -123dB
Input Sensitivity: 8mV to 1.6V for full modulation
Input Compressor: Soft Compressor; 12dB range
Electret Bias: +5 Volt DC (positive bias)
Antenna: Input cord or microphone body
Input Jacks: Twist-lock micro for electret microphones
Battery Indicator: LED indicates battery condition
Battery Life: Approximately 15 hours
Controls: Power on/off slide switch
Recessed audio gain control
Mute on/off toggle switch (M175-LS only)
Size: 1.3 x 2.35 x 3.7 inches
Weight: 6.6 ozs with battery and microphone
FCC ID: DBZM175 (150-172 MHz)
DBZM175A (174-216 MHz)
Emission designator: 58K0F3E
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