Williams AV ANT 021 – Rubber Duckie Antenna for FM Transmitters

Product Overview

The Williams AV ANT 021 is a 9-inch rubber duckie antenna for large-area 72–76 MHz FM assistive listening transmitters, including the PPA T45, PPA T45NET, and PPA T27. It uses a screw-to-PCB connector and serves as the standard transmit antenna or a direct replacement antenna for these FM systems. For integrators maintaining FM assistive listening installations, the ANT 021 keeps spare antenna stock simple and inexpensive.

Product Description

Rubber duckie antennas are the workhorse of FM assistive listening deployments: flexible, compact, and resilient in environments where a telescoping whip would be bent or snapped. The ANT 021 attaches directly to the transmitter chassis via its screw-to-PCB connector, so replacement takes seconds during a service call and requires no coax routing or tools.

At 9 inches long with a 75-ohm nominal impedance, the antenna is matched to Williams AV large-area FM transmitters operating in the 72–76 MHz band. It is a sensible spare to keep on hand for any facility running FM-based hearing assistance, from training rooms to auditoriums. Browse the full range of transmitters, receivers, and accessories in our Williams AV collection, or see the current-generation FM 557-12 FM+ large-area assistive listening system for complete deployments.

Key Features

• Flexible Rubber Duckie Design — Withstands incidental contact in equipment closets and on portable transmitter carts better than rigid whips.
• 72–76 MHz FM Band — Tuned for Williams AV large-area FM assistive listening transmitters.
• Screw-to-PCB Connector — Mounts directly to the transmitter for tool-free replacement during maintenance.
• 75-Ohm Nominal Impedance — Properly matched to PPA T45, PPA T45NET, and PPA T27 transmitters with no additional hardware.
• Compact 9-Inch Length — Keeps the transmitter footprint small on tabletops and shelves.

Technical Specifications