Lectrosonics SMQV Super Miniature Wireless Microphone Transmitter (Freq Block 20)

BH #LESMQV20Q • MFR #SMQV-20
Lectrosonics
Lectrosonics SMQV Super Miniature Wireless Microphone Transmitter (Freq Block 20)
Key Features
  • Frequency Block 20
  • Digital Hybrid Wireless Technology
  • Variable, Selectable Power Output
  • Membrane-Switch Controls w/ LCD Display
The Lectrosonics SMQV Super Miniature Wireless Microphone Transmitter incorporates Lectrosonics patented Digital Hybrid Wireless technology, in a package no bigger than a pager. The SMQV transmitter is miniature in size yet rugged enough to withstand rigorous daily use in the field or in studios.
Special Order
Expected availability: 7-10 business days
$1,479.00

Important Notice

  • This item is noncancelable and nonreturnable.

Lectrosonics SMQV Overview

  • 1Description
  • 2Variable, Selectable Output Power
  • 3Miniature Design
  • 4Digital Hybrid Wireless Architecture
  • 5Locking TA5-Male Connection
  • 6Backwards Compatibility
  • 7Splash-Proof Enclosure
  • 8Extended Battery Life

The Lectrosonics SMQV Super Miniature Wireless Microphone Transmitter incorporates Lectrosonics patented Digital Hybrid Wireless technology, in a package no bigger than a pager. The SMQV transmitter is miniature in size yet rugged enough to withstand rigorous daily use in the field or in studios.

To meet the demand for both extended operating range and extended battery life, the SMQV transmitters offer selectable output power of 50, 100 or 250 mW. A third selection at 50 mW is provided for some theatrical applications, where the system design specifies lower transmitter power. The SMQV transmitter offers 256 user-selectable UHF frequencies. The Switchcraft TA5M audio input has user-calibrated 44 dB gain range, and accepts 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 and a dual-release envelope, making the limiter transparent while maintaining low distortion.

Lectrosonics patented Digital Hybrid technology revolutionizes wireless microphone transmission. Digital audio signal is converted and encoded for analog transmission, then decoded and converted back to digital audio at the receiver. The result is an exceptionally low noise floor as the compandor circuit is eliminated and clear audio reception is retained at greater distances.

The non-corrosive, machined aluminum casing is splash proof and features an LCD display with membrane switch control panel. The transmitter is powered by two AA lithium, NiMH or alkaline batteries for up to 14.5 hours (lithium). The SMQV transmitter is completely compatible with all Lectrosonics Digital Hybrid wireless receivers, as well as older Lectrosonics analog receivers.

Variable, Selectable Output Power

The SMQV features selectable 50, 100 or 250 mW output power.

Miniature Design

The miniature design allows for a variety of mounting possibilities in film, video, theater, performances, etc.

Digital Hybrid Wireless Architecture

Lectrosonics incorporates digital and analog audio technology to enhance range and eliminate the noise associated with compandor circuits.

Locking TA5-Male Connection

A locking TA5M input is compatible with Lectrosonics and third-party microphones and cables. The input accepts line and microphone level signal.

Backwards Compatibility

The SMQV transmitter is completely compatible with all current Lectrosonics Digital Hybrid receivers and older Lectrosonics analog receiver models as well.

Splash-Proof Enclosure

The polished aluminum enclosure is moisture proof and ideal for use in rain.

Extended Battery Life

The SMQV transmitter is powered by two AA alkaline, NiMH or lithium rechargeable batteries. With Lithium power, the unit is capable of up to 14.5 hours of use.

Lectrosonics SMQV Specs

Operating Frequency512.000 - 537.500 MHz
Frequency Range256 frequencies in 100 kHz steps for one 25.5 MHz wide block
Channel Spacing100 kHz
Frequency SelectionControl panel mounted membrane switches
RF Power OutputSwitchable; 50, 100 or 250 mW
Compatibility ModesDigital Hybrid Wireless® (400 Series), 200 Series, 100 Series, Mode 3 , Mode 6, IFB
Pilot Tone25 to 32 kHz; 5 kHz deviation (in 400 Series Mode)
Frequency Stability± 0.002%
Deviation± 75 kHz max. (in 400 Series Mode)
Spurious Emission60 dB below carrier
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
LimiterDSP Controlled Soft limiter, 30 dB range
Bias Voltage(s)Fixed 5 V at up to 5 mA; selectable 2 V or 4 V servo bias for any electret lavaliere
Gain Range44 dB; panel mounted membrane switches
ModulationDual bicolor LEDs indicate modulation of -20, -10, 0, +10 dB referenced to full modulation
ControlsControl panel with LCD and four membrane switches
Low Frequency Roll-OffAdjustable from 35 to 150 Hz
Audio Frequency Response35 Hz to 20 kHz, +/-1 dB
Signal to Noise RatioSmartNR Off:
  • No Limiting: 103.5 dB
  • Limiting: 108 dB
SmartNR Normal:
  • No Limiting: 107 dB
  • Limiting: 111.5 dB
SmartNR Full:
  • 108.5 dB
  • 113 dB
Total Harmonic Distortion0.2% typical (400 Series mode)
Audio Input JackSwitchcraft 5-pin locking (TA5F)
AntennaFlexible, unbreakable steel cable
BatteriesTwo 1.5 Volt AA lithium or rechargeable; NiMH recommended
Battery Life50 mW:
  • Alkaline: 6 hrs
  • Lithium: 14.5 hrs
  • 2500 MA NiMH: 8.5 hrs
100 mW
  • Alkaline: 5.5 hrs
  • Lithium: 14 hrs
  • 2500 MA NiMH: 8.5 hrs
250 mW
  • Alkaline: 1.75 hrs
  • Lithium: 7.5 hrs
  • 2500 MA NiMH: 5 hrs
Emission Standard180KF3E
Dimensions2.3 x 2.4 x 0.64" / 58 x 60 x 16 mm not including microphone
Weight3.7 oz / 105 g with lithium batteries
Packaging Info
Package Weight0.995 lb
Box Dimensions (LxWxH)9.85 x 7.85 x 2.95"
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