Lectrosonics DSR4 - Specifications and Features; Audio Performance

Four Channel Digital Receiver
Rio Rancho, NM
23
Specications and Features
Operating Frequencies (MHz):
Model A1B1: 470.100 - 614.375
Model B1C1: 537.600 - 691.175
941: 941.525 - 959.825
961: 961.100 - 1014.900
NOTE: It’s the user’s responsibility to select the approved
frequencies for the region where the transmitter
is operating.
Frequency Selection Steps: 25 kHz
Frequency Stability: ±0.001 %
Front end bandwidth: ±5.5 MHz, @ -3 dB
Sensitivity: 20 dB Sinad: 0.9 uV(-108 dBm), A weighted
60 dB Quieting: 1.12 uV (-105 dBm), A weighted
AM rejection: >60 dB, 2 uV to 1 Volt
Modulation acceptance: 85 kHz
Spurious rejection: 85 dB
Third order intercept: +15 dBm
Diversity method: Antenna phase switching (4 channel operation)
Vector diversity (2 channel operation)
Antenna inputs: 50 Ohm; SMA female connectors
Audio output connectors: • Interchangeable D connector adapters
or camera slot interfaces
• Dual TA5 male (mini XLR) balanced
output adapter
• Battery sled adapters with TA5 male
outputs.
• Front panel TA5 male for analog output
channels 3 and 4.
Audio Performance (overall system):
Frequency Response: 25 Hz to 20 kHz (+0/-3 dB)
THD: 0.2% (typical)
SNR at receiver output (dB):
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 gure 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
Input Dynamic Range: 125 dB (with full Tx limiting)
Overall Latency (time delay): 1.6 ms with digital source,
<2.9 ms with Hybrid TX
Audio Test Tone: 1 KHz, -50 to +7 dBu, <1%THD
Controls:
Front Panel: • Color LCD display
• Menu/Sel, Pwr/Back, Up/Down Arrow
Buttons
• USB Port
• IR Port
Rear Panel: • Proprietary connector for audio/power
accessory panels.
External Power: Minimum 9 Volts to maximum 17 VDC
4.1 W; 340 mA at 12 VDC
Operating Temp. Range: -20 to 40°C; -5 to 104°F
Weight: 408 grams (14.4 oz.) w/o audio adapter
Dimensions: 3.23” wide x 1.23” high x 5.50” deep
82 wide x 31 high x 140 deep mm
Specications subject to change without notice.