User's Manual

Micro Body Pack Transmitter
Rio Rancho, NM
13
Specifications
Operating Frequencies:
Band A1: 470.100 - 537.575
Band B1: 537.600 - 614.375
Band C1: 614.400 - 691.175
Band D1: 691.200 - 767.975 (export only)
Frequency Selection Steps: Selectable; 100 kHz or 25 kHz
RF Power output: Selectable; 25 or 50 mW
Pilot tone: 25 to 32 kHz; 5 kHz deviation
(Digital Hybrid mode)
Frequency Stability: ± 0.002%
Deviation: ± 75 kHz max. (Digital Hybrid mode)
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: • Mic:300or4.5kohm;selectable
  • Line:greaterthan100kohm
Input limiter: DSP controlled, dual envelope “soft” limiter
with greater than 30 dB range
Gain control range: 44 dB; digital control
Modulation indicators: Dual bicolor LEDs indicate modulation of
-20, -10, 0 and +10 dB referenced to full
modulation
Audio Performance (Digital Hybrid mode)
Frequency Response: 70 Hz to 20 kHz (+/-1dB)
Low frequency roll-off: –12 dB/octave; 70 Hz
THD: 0.2% (typical)
SNR at receiver output:
Note: The dual envelope “soft”
limiter provides exceptionally good
handling of transients using variable
attack and release time constants. Once activated, the limiter compresses
30+ dB of transmitter input range into 4.5 dB of receiver output range, thus
reducing the measured figure for SNR without limiting by 4.5 dB
SmartNR No Limiting w/Limiting
OFF 103.5 108.0
NORMAL 107.0 111.5
FULL 108.5 113.0
Controls: Side panel membrane switches with LCD
interface for power on/off and all setup and
configuration controls
Audio Input Jack: LEMO 00 Series 3-pin
Antenna: Galvanized steel, flexible wire
Battery: Lithium-ion 3.7 V rechargeable
Battery Life: 4 hours per charge
Weight: 2.3 ounces (65.2 grams) including lithium battery
Dimensions (housing): 2.3 x 1.5 x .56 in. (58.4 x 38 x 14.2 mm)
Emission Designator: 180KF3E