Accessories and replacement parts, Specifications – Lectrosonics FM870 User Manual
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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)
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