Lectrosonics UM500 User Manual
Page 14
UM500
SPECIFICATIONS AND FEATURES
Operating frequencies:
525.000 to 862.000 MHz
Frequency selection:
256 frequencies in 100kHz steps normally,
25kHz steps in customized configuration
RF Power output:
50 mW (nominal)
Pilot tone:
25 to 32 kHz frequency; 3.5 kHz deviation
Frequency stability:
± 0.002%
Deviation:
± 50 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 .7V maximum, with limiting.
Input impedance:
Taps provided for 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:
–18dB/octave; 30Hz 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 243 different ones!)
Battery Life:
6 hours (alkaline); 13 hours (lithium)
Weight:
6.3 ozs. including battery
Dimensions:
3.1 x 2.4 x .75 inches
Specifications subject to change without notice.
This product meets the CE Compliance Standards - ETS 300 445; January
1996 and I ETS 300 422 (December 1995). A copy of the Declaration of
Conformity may be requested from your dealer or by contacting the factory
directly:
Lectrosonics, Inc.
Marketing Department
581 Laser Rd. NE, Rio Rancho, NM 87124 USA
tel: 505-892-4501 fax: 505-892-6243 e-mail: [email protected]
LECTROSONICS, INC.
14