Specifications – Lectrosonics FM875 User Manual
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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 - 1k Ohm, 1 Volt maximum
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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