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Lectrosonics HMA-B1 Wireless Plug-On Microphone Transmitter

  • Dale #:

    LECT-HMAB1
  • Availability:

    Not in Stock - Reserve Yours
  • This item is not in stock, but we can usually ship it within 10-20 days after your order is placed. Your payment will be charged after completing checkout.

Description

This unique plug-on transmitter design will ideally match any microphone or line level source via a standard XLR connector. Phantom power is selectable at 5, 15 and 48 volts, or can be turned off for use with dynamic microphones and line level signal sources.Features: Accepts microphone or line l... Read More

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Description

This unique plug-on transmitter design will ideally match any microphone or line level source via a standard XLR connector. Phantom power is selectable at 5, 15 and 48 volts, or can be turned off for use with dynamic microphones and line level signal sources.

Features:

  • Accepts microphone or line level signals
  • Selectable 5, 15, 48 volt phantom power
  • 76 MHz tuning range in 100 kHz or 25 kHz steps for up to 3072 frequencies (bands A1, B1, C1)
  • 941 band offers 695 frequencies over 19 MHz tuning range with 25 kHz steps
  • Selectable 50/100 mW output power
  • Adjustable low frequency roll-off
  • Powered by two AA batteries
  • USB port for firmware updates
  • IR (infrared) port for fast setup
  • Solid machined aluminum housing

The design includes a wide tuning range of up to 76 MHz, with tuning steps in increments of 100 kHz or 25 kHz for up to 3072 frequencies (19 MHz for block 941 version, for 695 frequencies).

DSP compatibility modes are also included to work with legacy Lectrosonics analog wireless microphone receivers and IFB receivers, as well as some receivers from other manufacturers.

Included Accessories:

  • 2 - AA Alkaline Batteries
  • 1 - HM Pouch (Part #PHTRAN3)
  • 1 - Quickstart Guide

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Product Specs

Operating Frequencies (MHz)Band A1: 470.100 - 537.575
Band B1: 537.600 - 614.375
Band C1: 614.400 - 691.175
Frequency Selection StepsSelectable; 100 kHz or 25 kHz
RF Power outputSelectable 50/100 mW
Pilot tone25 to 32 kHz; 5 kHz deviation (in the Digital Hybrid mode)
Frequency stability± 0.002%
Deviation± 75 kHz (max in Digital Hybrid mode)
Spurious radiation60 dB below carrier
Equivalent input noise-125 dBV (A-weighted)
Input levelNominal 2 mV to 300 mV, before limiting. Greater than 1V maximum, with limiting.
Input impedance1K Ohm
Input limiterDual envelope "soft" limiter; greater than 30 dB range
Gain control range55 dB; panel mounted membrane switches
Modulation indicatorsDual bi-color LEDs indicate modulation of -20, -10, 0, +10 dB referenced to full modulation
Audio Performance (overall system)
Frequency Response35 Hz to 20 kHz (+/-1dB)
Low frequency Roll-offAdjustable for -3dB @30, 50, 70, 100, 120 or 150 Hz)
THD0.2% (typ. 100 Hz to 20 kHz - see graph)
SNR at receiver output
SmartNRno limitingw/limiting
OFF103.5108.0
NORMAL107.0111.5
FULL108.5113.0
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.
Input Dynamic Range125 dB (with full Tx limiting)
Controls & IndicatorsPower/Phantom "ON-OFF"
Phantom voltage selector
Audio input gain
LCD w/membrane switches
LED audio level indicators
Audio Input JackStandard 3-pin XLR (female)
Phantom Power5V @ 18 mA max., 15V @ 15 mA max. and 48 V @ 4 mA max., plus "OFF"
USB portUsed for firmware updates
IR (infrafed) portFor quick setup by transferring settings from an IR enabled receiver
AntennaHousing and attached microphone form the antenna
BatteryTwo 1.5 Volt AA alkaline
Battery Life (Duracell Quantum)AA alkaline; No Phantom Power: 5h 0m*
AA alkaline; 48V Phantom Power: 3h 30m**
*Tested with a dynamic microphone
**Tested with a Sanken CS1 for a phantom-powered microphone
Weight6.7 oz (190 grams) without batteries
Dimensions4.25x1.62x1.38 inches
Emission Designator180KF3E

Specifications subject to change without notice.

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