Lectrosonics UDR195 - Manual (Page 16)

Receiver
SPECIFICATIONS AND FEATURES
Operating Frequencies: 470 to 608 MHz, crystal controlled
Receiver Type: Dual conversion, superheterodyne
Frequency Stability: ±0.002 %
Front end selectivity: >70 dB at ±4 MHz
IF Selectivity: >90 dB at ±300 kHz (10.7 IF)
IF Frequency: 10.7 MHz (1st IF); 455 kHz (2nd IF)
IF bandwidth: 150 kHz at ½ power points
Sensitivity
20 dB Sinad: 0.56 uV (-113 dBm), A weighted
60 dB Quieting: 1.0 uV (-112 dBm), A weighted
Squelch quieting: Greater than 125 dB
AM rejection: Greater than 60 dB, 2uV to 1 Volt
(Undetectable after processing)
Modulation acceptance: ±75 kHz
Image and spurious
rejection: > 120 dB
Third order intercept: –10 dBm
Diversity technique: Ratio diversity. Dual simultaneous
receivers with dynamic audio
combining (Opti-blend).
FM Detector: Digital Pulse Counting Detector
Antenna inputs: Dual BNC female;
50 Ohm impedance
Audio outputs
Rear Panel XLR: 600 Ohm Balanced, transformer
isolated, adjustable from 10 mV to
4.4 Volts RMS in 12 steps, at 60
kHz deviation
Monitor out: Front panel ¼” Phone jack,
adjustable from 0 to 600 mV RMS
into 8 Ohms at 60 kHz deviation
Front Panel Controls and
Indicators: Power on/off switch and LED;
Dual 10 segment RF signal level
display; 10 segment transmitter
audio level display; diversity
operation selector switch; Opti-
Blend operation LEDs; Pilot tone
indicator; Monitor output jack
Rear Panel Controls and and level control;
features: Antenna A and Antenna B BNC
connectors; Pilot tone bypass
switch; Audio phase reversal
switch; VU meter headroom
control; XLR audio output jack
and 12-step audio attenuator;
External 12VDC input and
contact closure output jack; 120/
240 VAC input jack with integral
voltage selector switch and fuse.
Power Options: 120/240 VAC, 50/60 Hz, 10 Watts
12V DC, 7 Watts (560 ma)
Weight: 8 lbs, 11 ozs
Dimensions: 8 ½” wide x 3 ½” high x 13" deep
( With handles and power cord)
System (DR195 receiver with T195 transmitter)
Audio Processor: Dual–band compandor with variable
cut-off frequency low-pass filter
Total Harmonic
Distortion
1 kHz: <0.45%
30 Hz to 20 kHz: < 1% (30 kHz deviation)
Signal/Noise ratio: 109 dB, full quieting, A weighted
60 dB, A-weighted, at .63 uV
(-111 dBm) signal input
Frequency Response: ±1 dB, 30 Hz to 21 kHz,
400 Hz reference, 30 kHz deviation
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