User's Manual

LMb
LECTROSONICS, INC.
18
Specifications and Features
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: 50 mW
Compatibility Modes (3) Nu Hybrid, Mode 3, IFB
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: Nominal 2 mV to 300 mV, before limiting
Greater than 1V maximum, with limiting
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: 90 Hz to 20 kHz (+/-1dB)
Low frequency roll-off: –12 dB/octave; 70 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 lithium
Battery Life: Duracell Quantum: 7 hours
Weight: 5 ounces (141 grams), including lithium
AA batteries and wire belt clip
Dimensions: 3.2 x 2.4 x .8 in. (81 x 61 x 20 mm)
Emission Designator: 110KF3E
Specifications subject to change without notice.