GT 520T

GT 520T is a rack mountable transmitter..

QUICK SPECS

Power Requirements

12VDC

Dimensions

215mm (8.47") x 220mm (8.66") x 44mm (1.74")

Weight

1.2kg (2.2 lbs)

Application

Designed for use on licensed free UHF FM 863-870 MHz frequencies (subject to local licensing laws).

The circuitry uses a high stability PLL synthesised UHF transmitter designed for use on licensed free UHF FM 863-870 MHz frequencies (subject to local licensing laws).
It has 16 programmed preset switchable channels..
The antenna is a BNC swivel Helical wound type developing 10mW ERP.
Audio metering is via 5 LEDs mounted on the front panel, audio Inputs 3 Pin XLR - 6.35mm Jack Plug (balanced input) - RCA audio output sockets 1 x 6.35mm and 1 x 3.5mm headphone Jack plug sockets – DC input 3.5mm Jack socket.

Engineered for Perfect Speech Capture

GT 520T is a rack mountable transmitter.

The circuitry uses a high stability PLL synthesised UHF transmitter designed for use on licensed free UHF FM 863-870 MHz frequencies (subject to local licensing laws).
It has 16 programmed preset switchable channels..
The antenna is a BNC swivel Helical wound type developing 10mW ERP.
Audio metering is via 5 LEDs mounted on the front panel, audio Inputs 3 Pin XLR – 6.35mm Jack Plug (balanced input) – RCA audio output sockets 1 x 6.35mm and 1 x 3.5mm headphone Jack plug sockets – DC input 3.5mm Jack socket.
Power Supply is provided by an external 12V DC 500mA supply. Operating range in free air (open field) 100 Metres.
Rotary controls: Aux / mic / headphone volume.
AC Adaptor: 12 VDC 500mA (115-230VAC).
Finish: Black.

For ‘Glossary of Terms’ Click Here

The circuitry uses a high stability PLL synthesised UHF transmitter designed for use on licensed free UHF FM 863-870 MHz frequencies (subject to local licensing laws).

It has 16 programmed preset switchable channels..

The antenna is a BNC swivel Helical wound type developing 10mW ERP.

Audio metering is via 5 LEDs mounted on the front panel, audio Inputs 3 Pin XLR - 6.35mm Jack Plug (balanced input) - RCA audio output sockets 1 x 6.35mm and 1 x 3.5mm headphone Jack plug sockets – DC input 3.5mm Jack socket.

Technical Specifications

Application

Designed for use on licensed free UHF FM 863-870 MHz frequencies (subject to local licensing laws).

Power Requirements

12VDC

Supplied Accessories

AC Adaptor: 12 VDC 500mA (115-230VAC)

Power Supply

12V DC 500mA

Finish

Black

Dimensions

215mm (8.47") x 220mm (8.66") x 44mm (1.74")

Weight

1.2kg (2.2 lbs)

Architect & Engineer Specifications

GT502T is a rack mountable transmitter. The circuitry uses a high stability PLL synthesised UHF transmitter designed for use on licensed free UHF FM 863-870 MHz frequencies (subject to local licensing laws). It has 16 programmed preset switchable channels. The antenna is a TNC swivel Helical wound type developing 10mW ERP. Audio metering is via 5 LEDs mounted on the front panel, audio Inputs 3 Pin XLR - 6.35mm Jack Plug (balanced input) - RCA audio output sockets 1 x 6.35mm and 1 x 3.5mm headphone Jack plug sockets – DC input 3.5mm Jack socket. Power Supply is provided by an external 12V DC 500mA supply. Operating range in free air (open field) 100 Metres. Dimensions: 215mm (8.47"") x 220mm (8.66"") x 44mm (1.74""). Weight Net: 1.2kg (2.2 lbs). Rotary controls: Aux / mic / headphone volume. AC Adaptor: 12 VDC 500mA (115-230VAC). Finish: Black.

Key Features

The circuitry uses a high stability PLL synthesised UHF transmitter designed for use on licensed free UHF FM 863-870 MHz frequencies (subject to local licensing laws).

It has 16 programmed preset switchable channels..

The antenna is a BNC swivel Helical wound type developing 10mW ERP.

Audio metering is via 5 LEDs mounted on the front panel, audio Inputs 3 Pin XLR - 6.35mm Jack Plug (balanced input) - RCA audio output sockets 1 x 6.35mm and 1 x 3.5mm headphone Jack plug sockets – DC input 3.5mm Jack socket.

Power Supply is provided by an external 12V DC 500mA supply. Operating range in free air (open field) 100 Metres.

Downloads & Documentation

Installation Guide

PDF • 82.4 KB

Frequently asked questions

What industries does Clockaudio serve?

Clockaudio solutions are used across corporate offices, education, government, healthcare, broadcast, and commercial AV environments where reliable, high-quality audio is essential.

Are Clockaudio products compatible with major conferencing platforms?

Yes — Clockaudio microphones and audio systems integrate seamlessly with major unified communications platforms including Microsoft Teams Rooms, Zoom Rooms, Cisco Webex, and Google Meet. Our boundary, gooseneck, and ceiling microphones deliver the clarity and reliability required for professional video conferencing installations worldwide.

Do you offer support for system design and installation?

Yes. Our engineering team provides system design consultations for integrators and end-users, helping specify the right combination of microphones, processors, and accessories for your space. Our technical support team is available throughout the installation and commissioning process.

Where are Clockaudio products manufactured?

Clockaudio has been designing and manufacturing professional audio products in the United Kingdom for over 40 years. Our UK facility handles R&D, precision assembly, and quality control — ensuring every product meets the standards expected by AV professionals worldwide.

How can I choose the right microphone for my space?

The right microphone depends on your room size, acoustic environment, and application. Boundary microphones suit tabletop conferencing; goosenecks are ideal for fixed lectern or dais positions; ceiling-mounted mics offer clean aesthetics for modern meeting rooms. Contact our team or use our Search Facility to find a certified integrator near you for a tailored recommendation.

IDEAL FOR

Application Areas

Corporate AV

Professional audio solutions for corporate environments and facilities.

Healthcare Facilities

Clear communication for medical consultations and patient interactions.

Event Venues

Versatile audio capture for live events and presentations.

Not Sure if the GT 520T Is Right for You?

Our audio engineers can help you specify the perfect microphone for your installation. Get in touch for expert guidance.

GT 520T

QUICK SPECS

Engineered for Perfect Speech Capture

The circuitry uses a high stability PLL synthesised UHF transmitter designed for use on licensed free UHF FM 863-870 MHz frequencies (subject to local licensing laws).

It has 16 programmed preset switchable channels..

The antenna is a BNC swivel Helical wound type developing 10mW ERP.

Audio metering is via 5 LEDs mounted on the front panel, audio Inputs 3 Pin XLR - 6.35mm Jack Plug (balanced input) - RCA audio output sockets 1 x 6.35mm and 1 x 3.5mm headphone Jack plug sockets – DC input 3.5mm Jack socket.