User's Manual

11
Frequency-Agile UHF Belt-Pack Transmitter
Rio Rancho, NM – USA
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: 60 mW (nominal)
Pilot tone: 25 to 32 kHz frequency; 5kHz deviation
Frequency stability: ± 0.002%
Deviation: ± 75 kHz (max)
Spurious radiation: 60 dB below carrier
Equivalent input noise: –120 dBV, A-weighted
Input level: Nominal 2 mV to 300 mV, before limiting.
Greater than 1V maximum, with limiting.
Input impedance: 2k Ohm
Input compressor: Dual envelope compressor, >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; 70Hz
Audio frequency response (overall system): 70 Hz to 20 kHz (+/- 1dB) with the 70Hz low frequency roll-off filter. (The
transmitter is deliberately rolled off at 70Hz to reduce the undesired effects of the
lower frequencies.)
Controls: 2 position “OFF-ON” slide switch for noiseless turn on/turn off operation.
Front panel knob adjusts audio gain. Rotary switches on side panel adjust
transmitter frequency.
Audio Input Jack: Switchcraft 2.5mm micro jack. Matches Switchcraft #851 locking plug.
Antenna: Bronze, flexible wire.
Battery: Precision compartment auto-adjusts to accept any known alkaline 9 Volt battery.
(We’ve tried 243 different ones!)
Battery Life: 6 hours (alkaline); 20 hours (lithium)
Weight: 6.3 ozs. including battery
Dimensions: 3.1 x 2.4 x .75 inches
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.