User's Manual
SMV Series
LECTROSONICS, INC.
22
Specifications and Features
Operating frequencies:
 US
  Block 470  470.100 - 495.675
  Block 19  486.400 - 511.975
  Block 20  512.000 - 537.575
  Block 21  537.600 - 563.175
  Block 22  563.200 - 588.775
  Block 23a  588.800 - 607.950
 941
 941.525 - 951.975 
 952.875 - 956.225 
 956.475 - 959.825 
 For FCC Part 74 licensed operators
 X
  Block 470  470.100 - 495.675
  Block 19  486.400 - 511.975
  Block 20  512.000 - 537.575
  Block 21  537.600 - 563.175
  Block 22  563.200 - 588.775
  Block 23  588.800 - 607.900
    614.100 - 614.375
  Block 24  614.400 - 639.975
  Block 25  640.000 - 665.575
  Block 26  665.600 - 691.175
Channel Spacing:  Selectable; 25 or 100 kHz
Frequency selection:  Control panel mounted membrane switches
RF Power output:  US, X: Selectable; 50, 100 or 250 mW
    941: Selectable, 50 or 100 mW
Compatibility Modes:  US: Nu Hybrid, Mode 3, IFB
    X: Digital Hybrid Wireless™ (400 Series), 
      200 Series, 100 Series, Mode 3 , Mode 6, IFB
    941: Nu Hybrid, IFB
Pilot tone:  US: 3.5 kHz deviation (in Nu Hybrid Mode)
    X: 25 to 32 kHz; 5 kHz deviation (in 400 Series Mode)
    941: 27 to 32 kHz; 3 kHz deviation (in Nu Hybrid Mode)
Frequency stability:  ± 0.002%
Spurious radiation:  US: Compliant with ETSI EN 300 422-1 v1.4.2
Equivalent input noise:  –125 dBV, A-weighted
Input level:
If set for dynamic mic:   0.5 mV to 50 mV before limiting. Greater than 1 V 
      with limiting.
  If set for 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 50 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:  Fixed 5 V at up to 5 mA; Selectable 2 V or 4 V servo 
      bias for any electret lavaliere.
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.
Low frequency roll-off:  Adjustable from 35 to 150 Hz.
Audio Frequency Response:  35 Hz to 20 kHz, +/-1 dB 
Signal to Noise Ratio (dB):
(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)
SmartNR  No Limiting  w/Limiting
OFF  103.5 108.0
NORMAL 107.0  111.5
FULL  108.5 113.0
Total Harmonic Distortion:  0.2% typical (Nu Hybrid mode)
Audio Input Jack:  Switchcraft 5-pin locking (TA5F)
Antenna:  Flexible, unbreakable, detachable steel cable.
Batteries:  1.5 Volt AA (Lithium recommended)
Unit/Power Battery 
Life
SMV 50 mW (1 AA): 7.25 hrs
SMV 100 mW (1 AA): 5.5 hrs
SMV 250 mW (1 AA): 3 hrs
SMQV 50 mW (2 AA): 14.5 hrs
SMQV 100 mW (2 AA): 14 hrs
SMQV 250 mW (2 AA): 7.5 hrs
Weight with Battery:  SMV:  2.7 oz. (75.9 grams) 
    SMQV: 3.7 oz. (105 grams) 
Overall Dimensions:  SMV:  2.3 x 1.8 x 0.64 inches 
      58 x 46 x 16 mm 
    SMQV: 2.3 x 2.4 x 0.64 inches 
       58 x 60 x 16 mm 
Emission Designator:  110KF3E
Specifications subject to change without notice. 










