Specifications and features – Lectrosonics MM400 - Manual User Manual
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Frequency Agile UHF Miniature Belt-Pack Transmitter
SPECIFICATIONS AND FEATURES
Operating frequencies:
537.600 to 607.900 MHz
614.100 to 793.500 MHz
Frequency selection:
256 frequencies in 100kHz steps
RF Power output:
100 mW (nominal)
Pilot tone:
25 to 32 kHz; 5kHz deviation
Frequency stability:
± 0.002%
Deviation:
± 75 kHz (max)
Spurious radiation:
90 dB below carrier
Equivalent input noise:
–118 dBV, A-weighted
Input level:
Nominal 2 mV to 300 mV, before limiting.
Greater than 1.5V maximum, with limiting.
Input impedance:
2 kOhm
Input limiter:
Soft limiter, >30 dB range
Gain control range:
43 dB; semi-log rotary control
Modulation indicators:
Dual bicolor LEDs indicate modulation of –20, -10, 0, +10 dB referenced
to full modulation.
Low frequency roll-off:
–12dB/octave; 70 Hz
Controls:
Front panel knob adjusts audio gain.
Rotary switches on bottom panel adjust transmitter frequency.
Audio Frequency Response:
32 Hz to 20 kHz (+/-1dB - overall system)
Audio Input Jack:
2.5 mm Locking micro (matches Switchcraft 850 Microplug)
Antenna:
Detachable, flexible bronze wire supplied. 50 Ohm port allows
connection to test equipment.
Battery:
1.5 Volt AA lithium recommended
Battery Life:
Alkaline: 2 hours
Lithium: over 5 hours (typical)
Weight:
7.3 ozs. including battery
Overall Dimensions:
3.03 x 2 x 0.69 inches (not including microphone or antenna)
Emission Designator: 180KF3E
Specifications subject to change without notice.
The FCC requires that the following statement be included in this manual:
This device complies with FCC radiation exposure limits as set forth for an uncontrolled environment. This device
should be installed and operated so that its antenna(s) are not co-located or operating in conjunction with any other
antenna or transmitter.
Rio Rancho, NM – USA
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