Lectrosonics M175
VHF Belt Pack Transmitter

OUR PART #:  M175

The M175 sets a new standard for mechanical design. Every external part on the transmitter is machined aluminum—including the battery door and belt-clip.
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Selected Model Price: $315.00
List Price: $450.00
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Lectrosonics M175
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The M175 sets a new standard for mechanical design. Every external part on the transmitter is machined aluminum—including the battery door and belt-clip. The result is an extremely durable package. The precise fit and action of these mechanical parts makes handling and operating the M175 a genuine pleasure.

Battery compartments are often a source of problems in most wireless transmitters. The battery compartment in the M175 automatically adjusts to accommodate the wide variety of available 9 volt alkaline batteries. The floating polarity barrier provides positive protection against inserting the battery backward, and spring loaded contacts assure a solid electrical contact with the battery. The machined aluminum battery door is of a unique design which rotates open smoothly and “snaps” closed providing a secure fit for the battery.


  • Input limiter for low distortion and high signal tonoise ratio
  • Continuously variable input gain
  • Machined aluminum housing and external parts
  • Spring-loaded, aluminum belt clip
  • Highly accurate battery status indicator
  • Self-adjusting battery compartment accommodates all makes of 9 voltalkaline batteries


  • Operating frequencies: 150 to 216 MHz
  • RF Power Output: 50 mW
  • Deviation: ±15kHz
  • Spurious Radiation: 50dB below carrier
  • Frequency Stability: ±0.005%
  • Equivalent Input Noise: -123dB
  • Input Sensitivity: 8mV to 1.6V for full modulation
  • Input Compressor: Soft Compressor; 12dB range
  • Electret Bias: +5 Volt DC (positive bias)
  • Antenna: Input cord or microphone body
  • Input Jacks: Twist-lock micro for electretmicrophones
  • Battery Indicator: LED indicates battery condition
  • Battery Life: Approximately 15 hours
  • Controls:Power on/off slide switch; Recessed audio gain control
  • Size: 1.3" x 2.35" x 3.7"
  • Weight: 6.6 oz with battery and microphone

Consumer Alert

This particular wireless microphone device operates in portions of the 617-652 MHz or 663-698 MHz frequencies. Beginning in 2017, these frequencies are being transitioned by the Federal Communications Commission (FCC) to the 600 MHz service to meet increasing demand for wireless broadband services. Users of this device must cease operating on these frequencies no later than July 13, 2020. In addition, users of this device may be required to cease operations earlier than that date if their operations could cause harmful interference to a 600 MHz service licensee’s wireless operations on these frequencies. For more information, visit the FCC’s wireless microphone website at www.fcc.gov/wireless-microphones-guide or call the FCC at 1- 888-CALL-FCC (TTY: 1-888-TELL-FCC).

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