Lectrosonics UCR211/UM250C

Specifications

The UCR211
Operating Frequencies (MHz): Block 21: 537.600 - 563.100
Block 22: 563.200 - 588.700
Block 23: 588.800 - 607.900
and 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
Frequency Adjustment Range: 25.5 MHz in 100 kHz steps
Receiver Type: Triple conversion, superheterodyne, 244 MHz , 10.7 MHz and 300 kHz
Frequency Stability: ±0.001 %
Front end bandwidth: ±5.5MHz @ -3dB

Sensitivity
20 dB Sinad: 0.9 uV (-108 dBm), A weighted
60 dB Quieting: 1.12 uV (-105 dBm), A weighted
Squelch quieting: Greater than 125 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: +8 dBm
Diversity method: Phased antenna diversity
FM Detector: Digital Pulse Counting Detector operating at 300 kHz
Antenna inputs: Dual BNC female, 50 Ohm impedance
Audio outputs
Rear Panel XLR: Adjustable from -50 dBu to +9 dBu in 1 dB steps. Calibrated into a typical 10K Ohm balanced load.
Actual output impedance max 500 Ohms, min 200 Ohms.
Front Panel Controls and Indicators
LCD control panel menus include:
Main window: Pilot tone; antenna phase, receiver battery level; transmitter battery level; audio level, RF level
Frequency window: Frequency, TV channel; Transmitter switch setting
Audio output level adjustment: -50 dBu to +9 dBu
Battery level tracking: Both transmitter and receiver in 1/10th volt steps, accuracy +/- 10%.
Scanning mode: Coarse and fine modes for spectrum check
Audio test tone: 1 kHz, -50 dBu to +10 dBu output, < 5% THD
Transmitter battery type selection: 9V alkaline, 9V lithium, AA alkaline, AA lithium
Rear Panel Controls and features: XLR audio output jack; External DC input; Battery compartment access

Power Options
Ext DC: Minimum 10 Volts to maximum 18 Volts DC; 1.6 W, 130 mA at 12VDC
Int Batt: 9V alkaline or lithium (110 mA @ 9V, 160mA @ 6V)

Battery Life
9V alkaline: 6 to 8 hours continuous, up to 12 hours intermittent
9V lithium: Up to 20 hours (continuous and intermittent usage are the same)
Weight: 14 oz. with batteries
Dimensions: 3.23\" wide x 1.25\" high x 4.64\" deep

System Audio Specifications
(UCR211 Receiver / UM200C Transmitter)
Signal to Noise Ratio: 108 dB; A-weighted at full quieting
Distortion: Less than 0.5% at 50% modulation, 1 kHz
Frequency Response: +/- 3 dB from 40 Hz to 18 kHz

The UM250C
Operating frequencies: 537.600 to 607.900 MHz
614.100 to 767.900 MHz
Frequency selection: 256 frequencies in 100kHz steps
RF Power output: 250 mW
Pilot tone: 32.764 kHz (± 2Hz); 5kHz deviation
Frequency stability: ± 0.002%
Deviation: ± 75 kHz (max)
Spurious radiation: 90 dB below carrier at frequencies less than 1GHz
Equivalent input noise: -126 dBV
Input level: Nominal 2 mV to 300 mV, before limiting.
Mic input greater than 2V, with limiting.
Line input greater than 20V, with limiting (Input to pin 5, pin 4 tied to ground.)
Input impedance: Taps provided for dynamic, electret and line level.
Mic load impedance greater than 4k.
Line load impedance greater than 10k.
Input compressor: Soft compressor, >30 dB range
Gain control range: 43 dB; semi-log rotary control
Modulation indicators: Dual LEDs indicate modulation level 12 dB below limiting and at the onset of limiting.
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 bronze cable supplied. 50 Ohm port allows connection to test equipment.
Battery: Precision compartment auto-adjusts to accept any known alkaline or lithium 9 Volt battery.
(We’ve tried 150 different ones!)
Battery Life: 2 hours with alkaline, 7 hours with lithium
Weight: 6.6 ozs. including battery
Dimensions: 3.1 x 2.4 x .75 inches