Lectrosonics UCR401/UM400 System

Specifications

The UCR401
Operating Frequencies (MHz):
Block 470: 470.100 - 495.600
Block 19: 486.400 - 511.900
Block 20: 512.000 - 537.500
Block 21: 537.600 - 563.100
Block 22: 563.200 - 588.700
Block 23: 588.800 - 607.900
614.100 - 614.300
Block 24: 614.400 - 639.900
Block 25: 640.000 - 665.500
Block 26: 665.600 - 691.100
Block 27: 691.200 - 716.700*
Block 28: 716.800 - 742.300*
Block 29: 742.400 - 767.900*
Block 944: 944.100 - 951.900

Frequency Adjustment Range: 25.5 MHz in 100 kHz steps
Channel Separation: 100 kHz
Receiver Type: Triple conversion, superheterodyne, 244 MHz , 10.7 MHz and 300 kHz
Frequency Stability: ±0.001 %
Front end bandwidth: 30 MHz @ -3 dB

Sensitivity
20 dB Sinad: 1 uV (-107 dBm), A weighted
60 dB Quieting: 1.5 uV (-104 dBm), A weighted
Squelch quieting: Greater than 100 dB
AM rejection: Greater than 60 dB, 2 uV to 1 Volt
(Undetectable after processing)
Modulation acceptance: 85 kHz
Image and spurious rejection: 85 dB
Third order intercept: 0 dBm
Diversity method: Phased antenna combining - SmartDiversity™
FM Detector: Digital Pulse Counting Detector operating at 300 kHz
Antenna inputs: Two, fixed whip
Audio outputs:
Rear Panel XLR adjustable from -50 dBu to +5 dBu in 1 dB steps. Calibrated into a typical 10 k Ohm balanced load. Can drive 600 Ohm load.

Front Panel Controls and Indicators - LCD control panel:
Main window: Pilot tone; antenna phase, receiver battery level; transmitter battery status; audio level, RF level
Frequency window: Frequency, TV channel; Transmitter switch setting
Audio output level adjustment: -50 dBu to +5 dBu
Battery level tracking: •0.1V steps, accuracy +/- 0.2V

Scanning mode: Coarse and fine modes for RF spectrum site scanning
Audio test tone: 1 kHz, -50 dBu to +5 dBu output in 1 dB steps; less than 1% THD
Transmitter battery type selection: 9 V alkaline, 9 V lithium, AA alkaline, AA lithium, TIMER
Phase invert: Audio output phase normal or inverted
Smart NR (noise reduction): OFF, NORMAL, FULL modes
(avail in 400 Series mode only)

Audio Performance (overall system):
(These specs apply to 400 Series mode only.)
Frequency Response (Typ.): 32 Hz to 20 kHz (+/- 1 dB)
System frequency response varies depending on transmitter used
THD: 0.2% (typical)

Input Dynamic Range: 125 dB (with full Tx limiting)
Rear Panel Controls and features: XLR balanced audio output jack; External DC input; Battery compartment acces.
Power Options:
Ext DC: Minimum 6 Volts to maximum 18 Volts DC;
1 W consumption, 80 mA at 12 VDC
Int Batt: Two AA 1.5 Volt alkaline, lithium or NiMH;

Battery Life (typical):
AA alkaline 4 hours continuous, up to 10 hours intermittent
AA lithium Up to 11 hours (continuous and intermittent)
AA NiMH (2500 mAH) 7.5 hours per charge typical (continuous and intermittent)
Weight: 13 oz with batteries.
Dimensions: 2.83” wide, 1.25” high, 4.64” deep
(2.83 mm x 32 mm x118 mm)

The UM 400

Operating frequencies:
Block 470: 470.100 - 495.600
Block 19: 486.400 - 511.900
Block 20: 512.000 - 537.500
Block 21. 537.600 - 563.100
Block 22. 563.200 - 588.700
Block 23. 588.800 - 607.90. an. 614.100 - 614.300
Block 24. 614.400 - 639.900
Block 25. 640.000 - 665.500
Block 26. 665.600 - 691.100
Block 27: 691.200 - 716.700
Block 28. 716.800 - 742.300
Block 29. 742.400 - 767.900
Block 944: 944.100 - 951.900

Frequency selection: 256 frequencies in 100kHz steps
RF Power output: 100 mW (nominal)
Pilot tone: 25 to 32 kHz frequency; 5kHz deviation
Frequency stability: ± 0.002%
Deviation: ± 75 kHz (max)
Spurious radiation: 90 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:
Dynamic mic: 300 Ohms
Electret lavaliere: Input is virtual ground with servo adjusted constant current bias
Line level: 2.7 k Ohms
Input compressor: Dual envelope compressor, >30 dB range
Gain control range: 43 dB; semi-log rotary control
Modulation indicators: Dual bicolor LEDs indicate modulatio. of -20, -10, 0, +10 dB referenced to full modulation.
Low frequency roll-off: –18 dB/octave; 35Hz to 150Hz
Audio frequency response (overall system): 35 Hz to 20 kHz, +/-1 dB

Controls: 2 position “OFF-ON” slide switch for noiseless turn on/turn off operation.
Front panel knob adjusts audio gain. Recessed control on side panel adjusts low
frequency rolloff. Rotary switches on side panel adjust transmitter frequency.

Audio Input Jack: Switchcraft 5 pin locking (TA5F)
Antenna: Detachable, flexible wire supplied. 50 Ohm port allows connection to test equipment.
Power Consumption: 80mA
Battery: Precision compartment auto-adjusts to accept any known alkaline 9 Volt battery.
Battery Life: 5 hours (alkaline); 10 hours (lithium)
Operating Temperature: -20 to +140 degrees F
Weight: 6.3 ozs. including battery
Dimensions: 3.1 x 2.4 x .75 inches