User's Manual

15
Frequency Agile UHF Belt-Pack Transmitter
Rio Rancho, NM – USA
SPECIFICATIONS AND FEATURES
Operating Principle: Proprietary digital modulation with encryption
Operating frequencies: 525.000 to 870.000 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: –126 dBV
Input level: Nominal 2 mV to 300 mV, before limiting.
Spurious radiation: 70 dB below carrier
Input Level: Nominal 2 mV to 300 mV before limiting
Greater than 30 V maximum with limiting
Input impedance: Taps provided for 100, 1k, 10k 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 5 steps at
-20, -10, -5, 0, +5 dB with green, yellow and red indications
Low frequency roll-off
adjustment: –18dB/octave; 35Hz to 150Hz
Controls: 2 position “OFF-ON” slide switch for noiseless turn on/turn off operation.
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 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 over 150 different ones!)
Battery Life: 4.5 hours (alkaline); 14 hours (lithium)
Weight: 6.3 ozs. including battery
Dimensions: 3.1 x 2.4 x .75 inches
Emission Designator: 180KQ2E