User's Manual
LT
LECTROSONICS, INC.
24
Specifications
Operating Frequencies: 
  Band A1:  470.100 - 537.575 
  Band B1:  537.600 - 607.950 
Frequency Selection Steps:  Selectable; 100 kHz or 25 kHz
RF Power output:    Selectable: 50 or 100mW
Compatibility Modes (3):  Nu Hybrid, IFB, Mode 3
Pilot tone:      3.5 kHz deviation (Nu Hybrid)
Frequency Stability:    ± 0.002%
Spurious radiation:    Compliant with ETSI EN 300 422-1 v1.4.2
Equivalent input noise:    –120 dBV (A-weighted)
Input level:
  Mic:      • Nominal 2 mV to 300 mV, before limiting 
         Greater than 1V maximum, with limiting
  Instrument:      • 1M Ohm high level
Input impedance:    2k Ohm
Input limiter:      DSP controlled, dual envelope “soft” limiter 
        with greater than 30 dB range
Gain control range:    44 dB; digital control
Modulation indicators:    • Dual bicolor LEDs indicate modulation of 
         -20, -10, 0 and +10 dB referenced to full 
         modulation 
        • LCD bar graph
Audio Performance (Nu Hybrid mode)
Frequency Response:    35 Hz to 20 kHz, +/-1 dB, low frequency roll off 
        can be set for 3 dB down points at 35, 50, 70, 
        100, 120 or 150 Hz
THD:      0.2% (typical)
SNR at receiver output:
Note: The dual envelope “soft”
limiter provides exceptionally good 
handling of transients using variable 
attack and release time constants. Once activated, the limiter compresses 30+ dB 
of transmitter input range into 4.5 dB of receiver output range, thus reducing the 
measured figure for SNR without limiting by 4.5 dB
SmartNR  No Limiting  w/Limiting
OFF  103.5 108.0
NORMAL 107.0  111.5
FULL 108.5 113.0
Controls:      •  Top panel slide switch; programmable as
     power, mute, talkback or no (off) 
     function
        •  Side panel membrane switches with LCD 
          interface for power on/off and all setup 
     and configuration controls
Audio Input Jack:      Switchcraft 5-pin locking (TA5F)
Antenna:      Galvanized steel, flexible wire
Battery:      Two AA; alkaline, lithium, NiMH rechargeable
Battery Life:      •  Duracell Quantum: 4.75 hours 
        •  Eneloop 2400 mAH NiMH: 5.5 hours
Weight:      5.9 ounces (169 grams), with lithium 
    AA batteries
Dimensions:      2.85 x 2.45 x .75 in. (72 x 62 x 19 mm)
Emission Designator:      110KF3E
Specifications subject to change without notice.










