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Need help?Do you have a question about the Williams AV PPA T46 and is the answer not in the manual?
Details on AA alkaline and rechargeable NiMH battery options for the transmitter.
Information on selectable channels and frequency range for the PPA T46 transmitter.
Specifies the integral microphone cord as the transmitting antenna.
Covers external/menu controls, display, mic, and aux input specifications.
Details audio compression, compatible microphones, and receivers.
Lists compliance directives and warranty information for the product.
Crucial safety warnings for hearing, batteries, and medical device compatibility.
Instructions for recycling equipment/batteries and battery recommendations.
Explains low battery indicator, optional charger, and how to order accessories.
Guidance on understanding and avoiding signal interference with the transmitter.
How to open the battery compartment and set the battery type switch correctly.
Proper installation of AA batteries, polarity, and low battery indicator behavior.
Connecting microphones and audio sources via the transmitter's jacks.
Step-by-step guide to turn on the PPA T46 transmitter.
Reference chart for operating frequencies and 17/8-Ch. Mode channel mapping.
How to select the desired operating frequency using the transmitter's menu.
Using the menu and arrow buttons to access and change transmitter settings.
Understanding the icons and information shown on the transmitter's main screen.
Attaching the belt clip and positioning microphones for optimal use.
How to mute the microphone and safely turn off the transmitter.
Details on the warranty coverage for the PPA T46 and its accessories.
Contact information and procedures for customer assistance and product returns.
The Williams AV PPA T46 is a Personal PA® FM 72-76 MHz Body Pack Transmitter designed to amplify sounds and transmit them wirelessly. This device is intended for use in various settings where clear audio transmission is required, such as assistive listening in public venues, educational environments, or personal communication.
The PPA T46 serves as a body pack transmitter, meaning it is a compact, portable unit that can be worn by a speaker or audio source. Its primary function is to convert audio input from a microphone or an auxiliary source into an FM radio signal, which can then be received by compatible FM receivers. This allows for wireless audio transmission over a specified range, making it ideal for situations where a speaker needs to be heard clearly by an audience, particularly those with hearing impairments, or for general public address.
The transmitter operates on the 72-76 MHz FM band, offering a selection of 17 wideband channels. This channel flexibility allows users to choose an optimal frequency to minimize interference and ensure clear transmission. For multi-unit setups, the device provides an 8-channel mode with recommended frequencies to prevent inter-channel interference, allowing up to eight T46 units to operate simultaneously on different channels.
Audio input can be provided through two distinct jacks: a 3.5 mm mono phone jack for a microphone and a 2.5 mm stereo phone jack for an auxiliary audio source. The microphone input is designed for electret microphones and includes a bias voltage, with adjustable gain to accommodate different microphone sensitivities and environments. The auxiliary input also features adjustable gain, providing flexibility for various audio sources like CD players or MP3 players. When both a microphone and an auxiliary source are connected, the PPA T46 mixes their audio signals, allowing for simultaneous transmission. If only an auxiliary source is desired, the microphone can be muted.
The device incorporates an integral antenna, which is part of the microphone cord. This design simplifies setup by eliminating the need for a separate antenna and ensures that the microphone cable itself contributes to the transmission quality.
Operating the PPA T46 involves a straightforward process, beginning with battery installation and selection. The device is powered by two AA batteries, supporting both non-rechargeable alkaline batteries (BAT 001-2) and rechargeable NiMH batteries (BAT 026-2). A battery selection switch must be set correctly to match the battery type, as incorrect selection can damage the unit. Proper battery polarity must be observed during installation to avoid voiding the warranty. A "Power On" LED indicator flashes when batteries are low, signaling that replacement or recharging is needed.
Powering the unit on and off is controlled by a momentary push button on the top of the transmitter. Pressing and holding this button for three seconds turns the unit on or off. The "Power On" indicator illuminates green when the device is active. This same button also serves as a microphone mute control; a quick press and release toggles the microphone mute function. When muted, the button flashes, and the front display indicates the mute status.
The PPA T46 features a 1-inch OLED display for viewing transmitter settings, which enhances user interaction and configuration. Navigation through the settings is managed by front-facing controls: Left Arrow, Menu, and Right Arrow buttons. The Menu button allows users to cycle through various settings, including channel selection and gain adjustments. Once a setting is displayed, the Left or Right Arrow buttons can be used to change its value. To conserve battery power, the display automatically returns to the main screen and then shuts off if no buttons are pressed for 30 seconds.
For physical attachment, the transmitter includes a belt clip that can be installed on the rear of the unit. The belt clip can be rotated 180 degrees to secure or remove it, allowing the device to be conveniently clipped onto a belt or clothing.
Microphone placement is crucial for optimal audio quality. For headset microphones, the boom should be positioned as close to the speaker's mouth as possible without touching. Lapel clip microphones should be attached to a collar or lapel, also close to the speaker's mouth.
The PPA T46 is designed for durability and ease of maintenance. The use of either alkaline or NiMH batteries provides flexibility for users, with rechargeable NiMH batteries offering a cost-effective and environmentally friendly option. For users opting for rechargeable batteries, the optional Multi Charger CHG 3512 is available, capable of charging up to 12 receivers simultaneously, streamlining the charging process for multiple units.
The device comes with a Lifetime PLUS Limited Warranty, covering defects in materials and workmanship for the transmitter itself. Accessories such as microphones, earphones, headphones, batteries, chargers, cables, and carry cases are covered by a 90-day warranty.
For customer assistance and troubleshooting, Williams AV provides a toll-free number for users in the U.S.A. and an international number for those outside. If a return for service is necessary, a Customer Service Representative will issue a Return Authorization Number (RA) and provide shipping instructions.
Regarding environmental responsibility, Williams AV encourages users not to dispose of equipment or used batteries in household trash. Instead, they recommend taking the equipment to an electronics recycling center or returning it to the factory. Batteries should be taken to a retail or community recycling location.
The PPA T46 also includes safety information to protect users and ensure proper operation. Hearing safety warnings advise users to ensure the unit is off or volume is down before putting on earphones and to set the volume at the minimum level needed to hear. Battery safety warnings caution against attempting to recharge non-rechargeable batteries due to the risk of explosion, chemical release, burns, or other harm. Medical device safety guidelines advise users with pacemakers or other implantable medical devices to consult their physician or device manufacturer before using the product.
General| Type | Transmitter |
|---|---|
| Modulation | FM |
| Output Power | 10 mW |
| Operating Range | Up to 1000 feet |
| Audio Input | 3.5 mm jack |
| Total Harmonic Distortion | <1% |
| Compatibility | Compatible with Williams AV receivers |
