User manual
Lectrosonics HMa Digital Hybrid Wireless UHF

User Manual for Lectrosonics HMa Digital Hybrid Wireless UHF Plug-On Transmitter & RE50B Mic Kit

• Product category: Wireless Transmitters Lectrosonics
• Brand: Lectrosonics
• Description and content of package
• Technical information and basic settings
• Frequently asked questions – FAQ
• Troubleshooting (does not switch on, does not respond, error message, what do I do if...)
• Authorized service for Lectrosonics Wireless Transmitters

Product description

• Lectrosonics HMa UHF Plug-On Wireless Transmitter (A1: 470.100 to 537.575 MHz) The HMa from Lectrosonics is a UHF plug-on transmitter that accepts mic or line-level signals via a standard XLR connector. It has selectable 5, 15, & 48V phantom power and can be used when paired with a Lectrosonics receiver and handheld microphone - sold separately - in applications for ENG (Electronic News Gathering), EFP (Electronic Field Productions), interviews for broadcast TV, and more. The input amplifier of the HMa transmitter uses an ultra-low noise op-amp for quiet operation and is gain controlled with a wide range dual envelope limiter. A 24-bit A to D converter digitizes the audio, and filters the supersonic noise above 21 kHz. The resulting signal is encoded with a proprietary algorithm to produce an analog data signal for RF transmission. Featuring a wide tuning range of 76 MHz, with tuning steps in increments of 100 kHz or 25 kHz for up to 3072 frequencies, the HMa transmitter also covers three standard 25.6 MHz Lectrosonics frequency blocks. Each block provides 256 different pilot tone frequencies. Legacy analog wireless microphone and IFB receivers are designed to work in DSP compatibility mode, as well as some receivers from other manufacturers. Finally, the transmitter is powered by two AA batteries, with status indicated by a multi-color LED. A USB port is also provided for firmware updates, and an IR (infrared) port is included to simplify setup with IR enabled receivers.
  • Digital Hybrid Wireless is a revolutionary design that combines digital audio with an analog FM radio link to provide outstanding audio quality and the exemplary RF performance of the finest analog wireless systems
  • Multi-color LED status indicator
  • Selectable 50/100 mW output power
  • 76 MHz tuning range in 100 kHz or 25 kHz steps for up to 3072 frequencies
  • The antenna is formed between the machined aluminum housing of the transmitter and the attached microphone or cable. It functions as a dipole radiator when attached to a hand-held microphone and somewhat like a ground plane antenna when connected with a cable or plugged directly into a mixer
• Electro-Voice RE50B - Omnidirectional Dynamic Shockmounted ENG Microphone (Black) Every day, for local, national and international news reports, the Electro-Voice RE50B gathers the audio for news interviews. Designed specifically as an ENG/EFP interview microphone, the RE50B's custom Dyna-Damp "mic-within-a-mic" shockmount provides extremely low handling noise for clear sound. A large, built-in Acoustifoam filter keeps wind and P-pop noise to an absolute minimum, indoors or out. Frequency response is 80 Hz to 13 kHz.
  • Industry standard news interview microphone
  • Features EV Dyna-Damp shockmount
  • Extremely low handling noise for clear sound
  • "Mic-within-a-mic" concept reduces wind and vocal plosive sounds
  UPC: 701001010905

• HMa UHF Plug-On Wireless Transmitter (A1: 470.100 to 537.575 MHz)
• PHTRAN3 Leather Pouch
• 2 x AA Alkaline Batteries
• Limited 1-Year Warranty

• Electro-Voice - RE50B - Omnidirectional Dynamic Shockmounted ENG Microphone (Black)

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Technical parameters

• Lectrosonics HMa UHF Plug-On Wireless Transmitter (A1: 470.100 to 537.575 MHz)

  Frequency Selection Steps	Selectable; 100 kHz or 25 kHz
  Operating Frequency	A1: 470.100 to 537.575 MHz
  RF Power Output	Selectable 50/100 mW
  Pilot Tone	25 to 32 kHz; 5 kHz deviation (in the Digital Hybrid mode)
  Frequency Stability	± 0.002%
  Deviation	± 75 kHz (max in Digital Hybrid mode)
  Spurious Radiation	60 dB below carrier
  Equivalent Input Noise	-125 dBV (A-weighted)
  Input Level	Nominal 2 mV to 300 mV, before limiting; greater than 1V maximum, with limiting
  Input Impedance	300 ohms
  Limiter	Dual envelope "soft" limiter; greater than 30 dB range
  Gain Range	55 dB; panel mounted membrane switches
  Modulation	Dual bi-color LEDs indicate modulation of -20, -10, 0, +10 dB referenced to full modulation
  Frequency Response	35 Hz to 20 kHz (+/-1 dB)
  Low Frequency Roll-Off	Adjustable for -3 dB @ 30, 50, 70 Hz
  THD	0.2% (typ. 100 Hz to 20 kHz)
  Signal to Noise Ratio	SmartNR Off no limiting: 103.5 dB limiting: 108 dB SmartNR Normal no limiting: 107 dB limiting: 111.5 dB SmartNR Full no limiting: 108.5 dB limiting: 113 dB
  Dynamic Range	125 dB (with full Tx limiting)
  Controls and Indicators	Power/Phantom "ON-OFF" switch Phantom voltage selector switch Audio input gain knob LCD w/ membrane switches LED audio level indicators
  Audio Input Jack	Standard 3-pin XLR (female)
  Phantom Power	Off; 5 V @ 18 mA max; 15 V @ 15 mA max; 48 V @ 4 mA max
  Antenna	Housing and attached microphone form the antenna
  Battery	Two 1.5 Volt AA lithium or rechargeable NiMH recommended
  Battery Life	Alkaline No Phantom: 5 hrs 48 V on: 3.5 hrs
  Emission Standard	180KF3E
  Dimensions	4.25 x 1.62 x 1.38" / 10.8 x 4.1 x 3.5 cm
  Weight	7.5 oz / 211 g with AA batteries

  Box Dimensions (LxWxH)	9.8 x 7.8 x 3.0"

• Electro-Voice RE50B - Omnidirectional Dynamic Shockmounted ENG Microphone (Black)

  Polar Pattern	Omnidirectional
  Element Type	Dynamic
  Output Connector	3-Pin XLR Male
  Frequency Response	80 Hz - 13 kHz
  Output Impedance	150 Ohms
  Sensitivity	1.6 mV/Pa
  Power Requirements	None
  Case Material	Aluminum
  Dimensions (L x D)	7.8 x 1.9" / 198.1 x 48.3 mm
  Weight	9.5 oz / 269 g

  Box Dimensions (LxWxH)	10.0 x 5.15 x 2.7"

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