Lectrosonics UDR195 User Manual download pdf (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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Lectrosonics UDR195 User Manual Page 16

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