Specifications and features – Lectrosonics UM400a User Manual
Page 16
UM400a
LECTROSONICS, INC.
16
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 (export only)
Block 28. 716.800 - 742.300 (export only)
Block 29. 742.400 - 767.900 (export only)
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 (The low frequency
roll-off is adjustable - see graph)
30
100
1kHz
10k
20k
+6
+3
0dB
-3
-6
-9
-12
Line in
Mic in 150 Hz
Roll-off
Mic in 35 Hz
Roll-off
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
Emission Designator. 180KF3E
Specifications subject to change without notice.
The FCC requires that the following statement be included in this manual:
This device complies with FCC radiation exposure limits as set forth for an uncontrolled environment.
This device should be installed and operated so that its antenna(s) are not co-located or operating in
conjunction with any other antenna or transmitter.
Specifications and Features