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JTS UF-20S Receiver and JSS-20 Microphone UHF Wireless System

JTS UF-20S Receiver and JSS-20 Microphone UHF Wireless System

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JTS Professional

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This JTS Professional UHF wireless microphone system consists of the UF-20S single channel true diversity wireless receiver and a JSS-20 microphone with an integrated transmitter. This system comes with many professional features that have been designed to assist your performances.

JTS UF-20 Wireless System


The UF-20S receiver comes with 15 preset groups, each containing 63 compatible channels, so you many channels to operate on. The free space scan function and obstacle-free RF function provide a quick set up time and allow you to get on with your performance easily. For reduced compounding noise the receiver features a brand new JTS LCX circuit design as well as a built-in equalizer so you can adjust the sound to just how you need it. For your convenience the UF-20S has alert functions for low battery, no signal, and accidental mutes, this allows you to see any problems with the unit and fix them as soon as possible.

The JSS-20 wireless microphone is the perfect partner for the UF-20S receiver and features an integrated super wideband transmitter that makes use of remoset technology; this allows the receiver to wirelessly change the transmitter settings at the touch of a button. The JSS-20 also features a brand new SAM-8WLN capsule that provides an outstanding acoustic performance with minimal touch noise. This capsule is also interchangeable allowing you to place your favourite capsule in the JSS-20 body for a truly unique, personal sound. The robust body features a sliding cover that prevents the performer from unintentionally touching the settings key.

UF-20S Receiver Key Features:

  • Preset 15 groups each of up to 63 compatible channels
  • User programmable 6 groups each of 64 channels
  • Free space scan function
  • JTS Patented obstacle-free RF
  • function synchronizes a transmitter by pushing a button
  • JTS LCX circuit design technology minimizes companding noise
  • The is now not only sends the
  • frequency data but also transmitter’s RF power, sensitivity, low cut, key lock and user's name.
  • RF “NO SIGNAL” alert function.
  • AF “MUTE” alert function.
  • Transmitter “LOW BATTERY” alert function.
  • Built in equalizer


JSS-20 Micrphone Key Features:

  • 2400 to 3000 selectable frequencies
  • Preset 15 groups each of up to 63 compatible channels
  • Phase-Locked Loop (PLL) synthesized tune
  • Adjustable transmission power between Low and High
  • Low cut function.
  • JTS newest development SAM-8WLN capsule assures outstanding acoustic performance while minimizes touching noise.
  • Interchangeable capsule design for various choices including some classic capsule modules.
  • It is designed with slot-in charging feature with two AA NiMH rechargeable batteries.

UF-20S Receiver Technical Specifications:

  • Code: 81245
  • Net Dimension (WxHxD): 212 x 44 x 213.9mm
  • Frequency Preparation: PLL Synthesized Control
  • Frequency Setting: JTS Patented obstacle-free RF Remoset
  • Carrier Frequency Range: 606-681MHz
  • S/N Ratio: >108dB (A)
  • T.H.D:     <0.5% @ 1kHz
  • Bandwidth: 60-75MHz Wideband
  • Chassis: 1/2U Standard Width Metal Chassis, 1U Standard Height
  • Preset Channels/Groups: * From group 1 ~ 15 up to 63 interference-free compatible channels. * 844 preset channels / group and 3000 selectable frequencies across 63 to 75 Hz Bandwidth. * User programmable from U1 ~ U6 each of 64 channels reserved.
  • Display: LCD
  • Display Contents: Group, Channel, Frequency, Antenna A / B, RF / AF Level Meter, Mute Display, Transmitter Battery Status, REMOSET ID Number, User Name, Squelch
  • Sensitivity: 6dBμV, at S/N > 80dB
  • Receiving Mode: True Diversity
  • Audio Output Level: Maximum 6dBu
  • AF Output Impedance: 600Ω
  • Frequency Response: 50Hz - 18kHz with High-pass filter
  • Squelch: Pilot Tone & Noise Mute
  • Power Supply: 100-240v
  • Output Connector: 1x XLR Balanced Socket, 1x 6.3mm Unbalanced Jack Socket


JSS-20 Microphone Technical Specifications:

  • Net Weight: 350g
  • Bandwidth: 60-75Mhz Wideband
  • Carrier Frequency: UHF 606 - 681MHz
  • Frequency Preparation: PLL Synthesized Control
  • RF Outputs: High/Low Option
  • Stability: 10KHz
  • Frequency Deviation: 48KHz (Peak)
  • LCD Display: Group, Channel, Frequency, Battery Status, User Name, GAIN Adjust
  • Controls: Power ON / OFF, AF Level, Frequency (Up / Down), Lock-on Mode, REMOSET ID Pairing, RF Output Adjust
  • Freq. Response: 50Hz - 18kHz
  • Battery: 2x AA