Manual

UM700
SPECIFICATIONS AND FEATURES
Operating principle: Proprietary digital modulation with encryption
Modulation type: Modified pi/4 DQPSK
Sample rate: 44.1 ksps
Audio coder: Proprietary sub-band ADPCM
Encryption key length: 128 bit (300 trillion trillion trillion keys)
Bit rate: 220,500 bps including packet overhead
Operating frequencies: 537.600 to 793.500 MHz depending upon local regulations
Frequency selection: 256 frequencies in 100kHz steps
RF Power output: 50 mW (nominal)
Frequency stability: ± 0.001%
Equivalent input noise: –119 dBV, A-Weighted
Spurious radiation: 70 dB below carrier
Input Level: Nominal 2 mV to 300 mV before limiting
Greater than 1V maximum with limiting
Input impedance: Taps provided for 100, 4k, 40k Ohm
Input compressor: Dual-envelope limiter; 30 dB range
Gain control range: 43 dB; semi-log rotary control
Modulation indicators: Dual multi-color LEDs indicate modulation level in 4 steps at
-20, -10, 0, +10 dB with green and red indications
Low frequency roll-off
adjustment: –18dB/octave; 35Hz to 150Hz
Controls: 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.
Audio Input Jack: Switchcraft 5 pin locking (TA5M)
Antenna: Detachable, flexible 1/4 wave bronze cable. 50 Ohm port allows
connection to test equipment.
Battery: Precision compartment auto-adjusts to accept any known alkaline 9 Volt
battery. (We’ve tried 246 different ones!)
Battery Life: 5 hours (alkaline); 16 hours (lithium)
Weight: 6.3 ozs. including battery
Dimensions: 3.1 x 2.4 x .75 inches
Emission Designator: 180KQ2E
System Specifications
Audio frequency response: 40Hz to 20kHz, +/- 1dB
Audio dynamic range: >100 dB before limiting
Audio Distortion: 0.05% THD + noise at 1kHz
Specifications subject to change without notice.
LECTROSONICS, INC.
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