Specifications And Features - Lectrosonics UM700 Operating Instructions Manual

Encrypted digital uhf belt-pack transmitter
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UM700
Operating principle:
Modulation type:
Sample rate:
Audio coder:
Encryption key length:
Bit rate:
Operating frequencies:
Frequency selection:
RF Power output:
Frequency stability:
Equivalent input noise:
Spurious radiation:
Input Level:
Input impedance:
Input compressor:
Gain control range:
Modulation indicators:
Low frequency roll-off
adjustment:
Controls:
Audio Input Jack:
Antenna:
Battery:
Battery Life:
Weight:
Dimensions:
Emission Designator:
System Specifications
Audio frequency response:
Audio dynamic range:
Audio Distortion:
14

SPECIFICATIONS AND FEATURES

Proprietary digital modulation with encryption
Modified pi/4 DQPSK
44.1 ksps
Proprietary sub-band ADPCM
128 bit (300 trillion trillion trillion keys)
220,500 bps including packet overhead
537.600 to 793.500 MHz depending upon local regulations
256 frequencies in 100kHz steps
50 mW (nominal)
± 0.001%
–119 dBV, A-Weighted
70 dB below carrier
Nominal 2 mV to 300 mV before limiting
Greater than 1V maximum with limiting
Taps provided for 100, 4k, 40k Ohm
Dual-envelope limiter; 30 dB range
43 dB; semi-log rotary control
Dual multi-color LEDs indicate modulation level in 4 steps at
-20, -10, 0, +10 dB with green and red indications
–18dB/octave; 35Hz to 150Hz
2 position "ON-OFF" slide switch. Front panel knob adjusts audio gain.
Recessed control on side panel adjusts low frequency rolloff. Rotary
switches on side panel adjust transmitter frequency.
Switchcraft 5 pin locking (TA5M)
Detachable, flexible 1/4 wave bronze cable. 50 Ohm port allows
connection to test equipment.
Precision compartment auto-adjusts to accept any known alkaline 9 Volt
battery. (We've tried 246 different ones!)
5 hours (alkaline); 16 hours (lithium)
6.3 ozs. including battery
3.1 x 2.4 x .75 inches
180KQ2E
40Hz to 20kHz, +/- 1dB
>100 dB before limiting
0.05% THD + noise at 1kHz
Specifications subject to change without notice.
LECTROSONICS, INC.

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