PPA SELECT Selectable Channel FM Recvr belt clip; 2-AA batt;

The Williams AV PPA R37 is a compact, belt-clip FM receiver built around seek-button channel selection. It gives listeners access to 17 frequencies reserved for hearing assistance and provides wired listening through a 3.5 mm stereo/mono phone jack. The black enclosure measures 4.1 x 2.85 x 1.38 inches (104 x 72 x 35 mm). It weighs 4.6 ounces with batteries and 2.6 ounces without them. The identified package combines the receiver with a belt clip, two AA batteries, and an earbud.

Ideal Use Cases

The PPA R37 is suited to hearing-assistance listening systems operating on one of its supported FM frequencies. Its belt clip and compact enclosure accommodate situations in which the receiver needs to be worn while audio is heard through the supplied earbud. The 3.5 mm stereo/mono output also provides a connection for an appropriate earphone or headphone. For systems that require receiver-side frequency selection, all 17 channels are accessible using the seek button located inside the battery compartment.

Why Choose This Model

This receiver combines selectable FM reception with straightforward controls and two-AA battery operation. It accepts either AA alkaline or AA NiMH batteries. Two BAT 001 non-rechargeable alkaline batteries provide approximately 50 hours of operation. A green LED shows that power is on and flashes green when the battery is low. If no RF signal is present for approximately six minutes, the receiver enters sleep mode. These operating indicators and automatic behavior provide clear information about receiver and battery status without adding a complicated control layout.

Installation and Integration

Install two AA alkaline or NiMH batteries and connect the earbud or a suitable earphone or headphone to the 3.5 mm jack. The connected earphone or headphone cord functions as the receiver’s integral antenna. Channel selection is performed with the seek button inside the battery compartment. Supported frequencies are 72.1, 72.2, 72.3, 72.4, 72.5, 72.6, 72.7, 72.8, 72.9, 74.7, 75.3, 75.4, 75.5, 75.6, 75.7, 75.8, and 75.9 MHz. Confirm that the transmitting system uses one of these frequencies, select the corresponding channel, and use the belt clip to position the receiver for listening.

Performance Highlights

• The receiver provides 17 seek-accessed FM channels and uses FM modulation with plus or minus 75 kHz peak deviation. Its intermediate frequency and specified FM deviation are both 75 kHz, while the AFC range is plus or minus 120 kHz.
• Rated sensitivity is 2 microvolts at 12 dB SINAD with squelch defeated. Input-overload capacity is 100 mV, and the minimum signal-to-noise ratio is 65 dB at 100 microvolts.
• The specified frequency response is 200 to 15 kHz. Maximum audio output is 35 mW peak into 16 ohms through the 3.5 mm stereo/mono phone jack.
• The supplied earbud uses a foam cushion, a 3.5 mm plug, and a 32-ohm impedance. Nominal current consumption is 52 mA, and the specified operating-temperature range is 0 to 50 degrees Celsius.

What Makes It Different

The defining feature of the PPA R37 is access to 17 hearing-assistance frequencies from a single seek control. The channel button is positioned in the battery compartment, while the external listening connection also serves as the receive antenna through the attached earphone or headphone cord. At 2.6 ounces without batteries, the receiver remains compact enough for its belt-clip format. Listed approvals include FCC, Industry Canada, RoHS, and WEEE. The product carries a Lifetime PLUS Limited Warranty, with 90-day coverage stated for most accessories.

Final Assessment

The Williams AV PPA R37 is a focused choice for selectable-channel FM hearing-assistance reception. It offers 17 supported frequencies, wired 3.5 mm audio, a supplied earbud, belt-clip positioning, and flexible alkaline or NiMH AA battery compatibility. Its approximately 50-hour alkaline runtime, low-battery indication, and sleep mode address practical operating requirements. Selection should be based on compatibility with the listed FM frequencies and the need for a compact receiver using a wired earphone or headphone connection.