Lectrosonics HMa-941 Plug-On Transmitter (Band 941, 941.525-959.825 MHz)

100mW Digital Hybrid Wireless Plug-On Transmitter, Frequency Band 941 (941.525-959.825 MHz)

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.

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

Along with providing peerless audio quality with wide frequency response and dynamic range in Nu Hybrid mode, the technology used in the HMa includes compatibility modes for Lectrosonics Mode 3 and IFB receivers.

Features:

• Accepts audio from any microphone or audio source with an XLR connector
• Selectable 5, 15, 48 volt phantom power
• 76 MHz tuning range in 100 kHz or 25 kHz steps for up to 3072 frequencies
• (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

Specifications:

• Frequency Selection Steps: Selectable; 100 kHz or 25 kHz
• Operating Frequency: A1: 470 to 537 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