Selectable Channel FM Receiver with Belt Clip No Batteries E

The Williams AV R37 is a selectable-channel FM receiver built for hearing-assistance applications. It provides access to 17 preset wideband frequencies spanning 72.1 to 75.9 MHz, with channel access through the seek button inside the battery compartment. This PPA R37N package includes the black receiver and CLP 023 belt clip. Batteries and earphones or headphones are not included.

Ideal Use Cases

The R37 is suited to hearing-assistance installations operating on one of its 17 supported frequencies. Its selectable-channel design also makes it practical as an additional or replacement receiver where access to multiple listed channels is required. The included belt clip supports convenient carrying while the receiver is in use.

This model is specifically the receiver-and-belt-clip package. It is an appropriate choice when batteries and compatible listening accessories are already available or will be selected separately.

Why Choose This Model

The R37 combines 17 preset FM channels with straightforward channel access and a standard 3.5 mm stereo/mono phone jack. Supported operating frequencies are 72.1 through 72.9 MHz, 74.7 MHz, and 75.3 through 75.9 MHz. These wideband frequencies are identified for hearing-assistance use.

The receiver accepts two AA alkaline or two AA NiMH batteries. With two BAT 001 non-rechargeable alkaline batteries, the published operating time is approximately 50 hours. A green LED indicates power, while a flashing green indication warns of a low battery. Current consumption is rated at 52 mA nominal.

Installation and Integration

Prepare the receiver by installing two compatible AA batteries, which are sold separately with this package. Channel selection is accessed using the seek button located in the battery compartment. Connect a compatible earphone or headphone to the 3.5 mm stereo/mono output jack before use. The receiver antenna is integral with the connected earphone or headphone cord, making that connection part of the receiving arrangement.

The unit measures 4.1 by 2.85 by 1.38 inches, or 104 by 72 by 35 mm. It weighs 2.6 ounces, or 73 grams, without batteries and 4.6 ounces, or 130 grams, with batteries. Its specified operating temperature range is 0 to 50 degrees Celsius. The included CLP 023 belt clip attaches the receiver for carrying during operation.

Performance Highlights

The R37 has a stated sensitivity of 2 µV at 12 dB SINAD with squelch defeated and an input-overload rating of 100 mV. Its signal-to-noise ratio is specified at a minimum of 65 dB at 100 µV. Frequency response extends from 200 Hz to 15 kHz, while maximum audio output is rated at 35 mW peak into 16 ohms.

FM modulation uses ±75 kHz peak deviation, with a 75 kHz intermediate frequency and 75 µS de-emphasis. The automatic frequency control range is ±120 kHz. When no RF signal is present for approximately six minutes, the receiver enters sleep mode automatically.

What Makes It Different

A single R37 receiver provides access to all 17 listed preset channels rather than being identified for only one operating frequency. The seek control is kept inside the battery compartment, and the connected listening-device cord serves as the integral receiving antenna. Together with the compact enclosure and included belt clip, these details define a focused receiver package for hearing-assistance use.

The product carries FCC, Industry Canada, RoHS, and WEEE approvals. The published warranty is a Lifetime PLUS Limited Warranty, with 90 days stated for most accessories. Because the PPA R37N configuration excludes batteries and earphones, those items must be obtained separately before operation.

Final Assessment

The Williams AV PPA R37N is a clearly specified choice for applications requiring a compact FM receiver with selectable access to 17 hearing-assistance frequencies. Its 3.5 mm output, AA battery compatibility, low-battery indication, automatic sleep mode, and included belt clip support a straightforward operating setup. Buyers should confirm that their operating frequency is among the 17 listed channels and account for the separately required batteries and listening accessory.