Compact Yet Mighty: The Wisycom MTP61 Bodypack

Wisycom MTP61

As a professional production sound mixer, I have spent years working in the industry and have come to appreciate the importance of reliable, high-quality audio equipment. In today’s fast-paced production environment, having tools that are versatile, durable, and deliver exceptional audio performance is essential. That’s why the Wisycom MTP61 has become one of my go-to solutions. The MTP61 is a miniature pocket transmitter designed for location sound, theater, and any situation where the smallest size is crucial. In this blog post, I will share some key features and technical specifications that make the Wisycom MTP61 an excellent choice for audio professionals.

Small But Mighty

The Wisycom MTP61 is a remarkable miniature pocket transmitter that has been specifically designed for location sound, theater productions, and any situation where the smallest size is crucial. Despite its compact form factor, this transmitter doesn’t compromise on functionality or performance. Let’s dive into some of the key features and technical specifications that make the Wisycom MTP61 stand out among audio professionals

Key Features

  • Unrivaled Tuning Range: The multi-band Wisycom MTP61 boasts a remarkable frequency range spanning from 470 to 1260 MHz, the MTP61 offers unparalleled versatility when it comes to finding clean and usable frequencies. This expansive range allows you to navigate through a vast spectrum of frequencies, ensuring that you can operate in various regions and adapt to different RF environments without encountering interference issues.
  • Bluetooth Control: The Wisycom MTP61 takes convenience and control to the next level with its Bluetooth compatibility. You can easily monitor and control the transmitter using the Wisycom BT App, which connects to the MTP61 via Bluetooth. This innovative feature allows you to adjust parameters in real time, providing full control over the transmitter directly from your mobile device or tablet. Whether you’re on set or behind the scenes, the Bluetooth interface and mobile app offer a seamless and intuitive way to manage and optimize the performance of the MTP61, enhancing your workflow and ensuring that you can make precise adjustments on the go.
  • Advanced Linear Technology: The Wisycom MTP61 incorporates advanced linear technology to eliminate intermodulation distortion, resulting in a more robust signal and extended range. With this technology, the MTP61 delivers cleaner audio quality, free from unwanted artifacts or interference. Moreover, the advanced linear technology allows for the simultaneous operation of multiple transmitters in close proximity without the need for an intermod frequency plan, simplifying frequency coordination and ensuring seamless performance. The MTP61 sets a new standard in wireless audio by leveraging advanced linear technology to provide exceptional signal integrity, extended range, and effortless multi-transmitter operation for audio professionals.
  • Embedded Recorder: The Wisycom MTP61 features an embedded recorder that allows you to record audio directly onto its internal 64 GB micro SD card. This convenient feature eliminates the need for a separate dedicated recorder, streamlining your setup. Additionally, the integrated Linear Time Code decoding ensures seamless syncing of recorded audio with other devices, simplifying post-production workflows and enhancing overall efficiency.
  • DSP-Based Signal Processing: Easily switch between wide and narrow band operation with the MTP61’s DSP-based signal processing.
  • ENS Compander: Experience crystal-clear sound quality with the ENS compander.
  • Lithium-Ion Battery Power: The MTP61 is powered by the Lithium-ion battery LBP61.
  • Integrated Low-Pass Audio Filter: Eliminate ultrasonic interference from devices such as focus pullers with the integrated low-pass audio filter.
  • Front Panel Buttons: Quickly access the menu with multiple shortcut combinations available on the front panel buttons.

Technical Specifications

  • Frequency range: From 470 to 1260 MHz, depending on the country (see Configurations)
  • Switchable channels: 2400 managed in 40 groups of 60 frequencies, completely user programmable
  • Switching-window: Up to 362 MHz, depending on band (see Configurations)
  • Frequencies: Quartz PLL frequency synthesizer circuit (5 kHz step)
  • Frequency error: ±2.5 ppm, in the rated temperature range
  • RF Power: 10mW / L10 W / 20 mW / L20 mW / 50 mW / 100 mW (on specific configurations)
  • Antenna connector: SSMA
  • Modulation: Wideband and Narrow-band with DSP based digital signal processing
  • Nominal deviation: ±40 kHz Wideband / ±25 kHz Narrowband
  • Peak deviation: ±56 kHz Wideband / ±35 kHz Narrowband
  • Spurious emissions: < 2 nW
  • Telemetry feature: TX transmits a digitally modulated sub-carrier for tone-squelch operating, remote battery monitoring, compander and modulation control, and optional PTT (push to talk) operation
  • Noise Reduction system: ENS – Wisycom ultra-high-performance compander
  • AF bandwidth: Audio frequency response (dBa) in Narrow Band mode (NB): 45 Hz ÷ 17 KHz (3dB) and in WideBand mode (WB): 45 Hz ÷ 20 KHz (3dB)
  • Distortion: < 0.3 % (0.15 % typ.)
  • SND/D ratio (Analogue): typ. 115 dB (A)rms with 40 kHz deviation; typ. 121 dB (A)rms with 56 kHz deviation Wideband; typ. 115 dB (A)rms with 25 kHz deviation; typ. 121 dB (A)rms with 35 kHz deviation Narrowband
  • Audio input connector: LEMO 3pin
  • Audio input level: from -40 dBu (12mV RMS) to 6 dBu (1.55Vrms) adjustable in 1 dB steps; input dynamic extension with an integrated limiter
  • Max input level: +6 dBu (1.55Vrms) at clipping
  • Storage media: internal 64 GB micro SD memory card (industrial grade heavy duty)
  • Time code: Linear Timecode decoding
  • Bit rate: 24 bit / 32 bit
  • Sampling rate: 48 kHz
  • Managing interface: Bluetooth 5.2 low energy long range, proprietary waterproof magnetic connector 5 pin (USB HS + power + LTC)
  • LED: 3 RGB LEDs (red, green, and blue) for audio, RF, battery status, and battery charger
  • Battery level indication: percentage or minute/second
  • PTT function: Pin 3 of AF connector can be controlled via an external PTT button
  • Display: High contrast OLED white display (128 x 64 pixels)
  • Power supply: Cameron Sino Lithium-ion battery Model CS-BCE10 Part No. CGA-S008E (3.7V, 1050 mAh)
  • Battery life: approx. 8 hours @ 10mW
  • Temperature range: -10 ÷ +55 °C
  • Dimensions: 66.8mm x 47mm x 17mm (HxWxD) without clip
  • Weight: Approx. 72 g. without battery, 94 g. with battery


The Wisycom MTP61 miniature bodypack transmitter is a powerful, versatile, and compact solution for professional audio needs. Its impressive features and technical specifications make it an ideal choice for location sound, theater, and other demanding situations. Whether you’re a production sound mixer, a theater technician, or an audio professional, the MTP61 will undoubtedly become an invaluable addition to your toolkit.

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