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FM Base Station Transmitter PPA T45

Williams Sound

The cutting-edge PPA T45 transmitter offers multiple digital audio input options, and an OLED high-resolution screen with easy-to-manage menu navigation.  Features 3 powerful microprocessors and the same high-quality audio and RF performance you’ve come to expect from Williams Sound.  It’s technology that takes the guesswork out of complex audio installation.  Simply select among voice, music, or hearing assistance in the application preset menu, and this transmitter quickly configures itself.  With a range of up to 1000 feet, the PPA T45 is ideal for large venues where superior coverage is essential.

System Includes

(1) PPA T45 transmitter
(1) ANT 025 antenna
(1) TFP 048 power supply
(1) WLC 004 Main Power Cord (U.S.)
(1) WCA 013 RCA Audio Cable, 3ft.
*All items can be purchased separately


$765.00 $850.00

Professional transmitter features network control, digital inputs, large OLED display, DSP audio processing, 3 powerful micro processors and easy to use menu controls.


There shall be three models of the transmitter – an FM transmitter only, one with network control and one with network control and a Dante input.

The transmitter shall be a microprocessor-based unit.  It may be configured through the on-screen menu.

The model with network control will be configurable over an ethernet (10 base T) network accessible through common web based browsers.

The model with Dante input will also be configurable over an ethernet (10 base T) network accessible through Dante Controller.

The transmitter shall have a transmitting range of up to 1000 feet.  It shall have 17 wideband channels operating on 72.1–75.9 MHz.  It shall be supplied with a top mount 39” whip antenna and external power supply.

Front Panel:
The transmitter shall have an OLED screen displaying current settings and menu functions.

Channel/frequency selection, audio input source, audio presets (Hearing Assist, Music, Voice and Custom), audio input level, high and low pass filter, compressor gain and RF output power shall be configurable via the front OLED menu or web browser.

There shall be a 10 segment LED bar graph indicating audio input level and an RF “on air” LED.  A 1/4” stereo headphone jack will allow monitoring of the transmitted audio.

Rear Panel:
The PPA T45 shall be powered by an external 24VDC power supply.

It shall have a 75Ω F-connector on the rear for remote antenna applications and an RCA line level output.

It shall have analog 1/4”/XLR combo microphone or line level input jack, XLR AES3 and S/PDIF RCA digital input jacks.  The model with Ethernet control shall have an RJ-45 Ethernet jack.

The transmitter shall be compatible with all Williams Sound FM wideband 72-76 MHz receivers and have a lifetime limited warranty.

All transmitter models shall comply to FCC Part 15.

The FM transmitter shall be the Williams Sound model number PPA T45.

The FM transmitter with network control shall be the Williams Sound model number PPA T45 NET.

The FM transmitter with network control and Dante input shall be the Williams Sound model number PPA T45 NET D






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