Lectrosonics UM200C or UM400C

Specifications

The UM200C
Operating frequencies: 537.600 to 607.900 MHz
614.100 to 767.900 MHz
Frequency selection: 256 frequencies in 100kHz steps
RF Power output: 100 mW (nominal)
Pilot tone: 32.764 kHz (± 2Hz); 5kHz deviation
Frequency stability: ± 0.002%
Deviat ion: ± 75 kHz (max)
Spurious radiation: 90 dB below carrier
Equivalent input noise: –126 dBV
Input level: Nominal 2 mV to 300 mV, before limiting.
Greater than 50V maximum, with limiting.
Input impedance: Taps provided for 500, 1k, 10k Ohm
Input compressor: Soft compressor, >30 dB range
Gain control range: 43 dB; semi-log rotary control
Modulation indicators: Dual LEDs indicate modulation level 12dB below
limiting and at the onset of limiting.
Low frequency roll-off
adjustment: –18dB/octave; 35Hz to 150Hz
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.
Battery: Precision compartment auto-adjusts to accept any known alkaline 9 Volt
battery. (We’ve tried 125 different ones!)
Battery Life: 4.5 hours (alkaline); 14 hours (lithium)
Weight: 6.3 ozs. including battery
Dimensions: 3.1 x 2.4 x .75 inches

The UM400C

Operating frequencies:
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
Block 30: 768.000 - 793.500 (Export)
Block 31: 793.600 - 805.600 (Export)
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: Taps provided for 200, 4k, 40k Ohm
Input compressor: Dual envelope compressor, >30 dB range
Gain control range: 43 dB; semi-log rotary control
Modulation indicators: Dual bicolor LEDs indicate modulation 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): 32 Hz to 20 kHz (+/- 1dB)

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)
Weight: 6.3 ozs. including battery
Dimensions: 3.1 x 2.4 x .75 inches