Specifications and features – Lectrosonics UM190b User Manual
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SPECIFICATIONS AND FEATURES
Operating frequencies:
470 to 608 MHz
RF Power output:
70 mW (nominal)
Frequency stability:
±0.002%
Deviation:
±15 kHz (max)
Preemphasis:
shelving type, 100us (1.6kHz), 24us (6.4kHz)
Spurious radiation:
50 dB below carrier
Equivalent input noise:
-126 dBV
Input level:
Nominal 2 mV to 300 mV, before limiting.
Greater than 50 Volts 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 20dB below limiting and
at the onset of limiting.
Controls:
2 position “OFF-ON” slide switch. Front panel knob adjusts
audio gain. Recessed control on side panel adjusts low
frequency rolloff.
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 or lithium 9 Volt battery. (We’ve tried 108
different ones!)
Battery Life:
7.5 Hours with alkaline 9 Volt
Weight:
6.3 ozs. including battery
Dimensions:
3.1 x 2.4 x .75 inches
Emission Designator:
35KF3E
Specifications subject to change without notice.
The UM190B transmitter is FCC type accepted under Part 74: 470-608 MHz
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