Specifications - Lectrosonics WM Instruction Manual

Specifications

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
Channel Spacing: 100 kHz
Frequency selection: Control panel mounted membrane switches
RF Power output: Switchable; 50, 100 or 250 mW
Compatibility Modes (6)
Digital Hybrid Wireless
200 Series, 100 Series, Mode 3, Mode 6, IFB
Pilot tone: 25 to 32 kHz; 5 kHz deviation
(in 400 Series Hybrid Mode)
Frequency stability:
± 0.002%
Deviation: ± 75 kHz max. (in 400 Series Mode)
Spurious radiation: 60 dB below carrier
Equivalent input noise:
–125 dBV, A-weighted
Input level:
Dynamic mic: 0.5 mV to 50 mV before limiting.
Greater than 1 V with limiting.
Electret lavaliere mic:
1.7 uA to 170 uA before limiting.
Greater than 5000 uA (5 mA) with limiting.
Line level input: 17 mV to 1.7 V before limiting.
Greater than 5 V 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 limiter:
Soft limiter, 30 dB range
Bias voltages:
Selectable; 2V, 4V and Off
Gain control range: 44 dB; panel mounted membrane switches
Modulation indicators: Dual bicolor LEDs indicate modulation of
–20, -10, 0, +10 dB referenced to full modulation
Controls:
Control panel with LCD and four membrane
switches
The recess in the battery compartment
traps the O-ring for a tight seal.
Rio Rancho, NM
Block 23 588.800 - 607.900
614.100 - 614.300
Block 24 614.400 - 639.900
Block 25 640.000 - 665.500
Block 26 665.600 - 691.100
® (400 Series),
AA battery compartments are O-ring sealed
Low frequency roll-off:
Audio Frequency Response:
Signal to Noise Ratio (dB):
(overall system, 400 Series mode)
(Note: the dual envelope "soft"
limiter provides exceptionally
good handling of transients
using variable attack and release
time constants. The gradual onset of limiting in the design begins below full modulation,
which reduces the measured figure for SNR without limiting by 4.5 dB)
Total Harmonic Distortion:
Audio Input Jack:
Antenna: Flexible, unbreakable steel cable.
Batteries:
Battery Life: Lithium
50 mW (2 AA): 13:00
100 mW (2 AA): 10:45
250 mW (2 AA): 5:45
Weight:
Housing Dimensions:
Emission Designator:
Specifications subject to change without notice.
Watertight Transmitter
Adjustable from 35 to 150 Hz
+6
+3
0dB
Mic in 35 Hz
-3
Roll-off
Line in
-6
Mic in 150 Hz
Roll-off
-9
-12
30 100 1kHz 10k
35 Hz to 20 kHz, +/-1 dB (The low frequency
roll-off is adjustable - see graph above)
SmartNR No Limiting w/Limiting
OFF 103.5 108.0
NORMAL 107.0 111.5
FULL 108.5 113.0
0.2% typical (400 Series mode)
2.5 mm locking micro; threaded for stainless
sleeve on WP connector
1.5 Volt AA lithium
5.33 oz.. (151 grams) with lithium batteries
2.98 x 2.55 x 0.77 inches
75.7 x 64.8 x 19.6 mm
(including battery caps)
180KF3E
20k
21