Lectrosonics SMQV Digital Hybrid Wireless UHF Beltpack Transmitter with Dual Battery, 23 588.8 - 607.9 / 614.100 - 614.375 MHz

To meet the demand for both extended operating range and extended battery life, the "V" series SM transmitters offer selectable output power (See specific model data sheets for details). A third selection at 50 mW is provided for some theatrical applications where the system design specifies lower transmitter power.

The input section features the unique servo bias input circuitry with a standard TA5M type jack for use with electret lavaliere mics, dynamic mics, or line level signals. A DSP-controlled analog audio limiter is employed before the A-D converter. The limiter has a range of more than 30 dB for excellent overload protection and a dual release envelope that makes the limiter acoustically transparent while maintaining low distortion. The limiter recovers quickly from brief transients, with no audible side effects, and also recovers slowly from sustained high levels to keep audio distortion low while preserving short term dynamics.

Key Features

• Digital Hybrid Wireless™ Technology* (U.S. Patent #7,225,135)
• Variable, selectable power output
• 50mW, 100mW, 250mW (for X and US units, blocks 470-23)
• Membrane switch control panel with LCD display
• Wide input dynamic range
• DSP based pilot-tone signal
• Circulator/Isolator output stage
• Splash-proof, machined aluminum housing
• Non-corrosive, super-hard finish

Technical Specifications

Operating frequencies
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
Channel Spacing
Selectable; 25 or 100 kHz
Frequency selection
Control panel mounted membrane switches
RF Power output
Selectable; 50, 100 or 250 mW
Compatibility Modes
Nu Hybrid, Mode 3, IFB
Pilot tone
3.5 kHz deviation (in Nu Hybrid Mode)
Frequency stability
± 0.002%
Spurious radiation
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
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)
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
Included Accessories
2 - AA Lithium Batteries
1 - Foam Insulating Pads (Part #35924)
1 - Pouch (Part #PSMD)
1 - Mic Connector Kit (Part #SMKITTA5)
1 - Belt Clip (Part #SMDBCSL)
1 - Quick Start Guide