General Information

Manufacturer

Williams AV

Manufacturer Part Number

PFM PRO RCH

Product Name

Personal FM Listening System

Overview

PPA R37 Architectural and Engineering Specifications

The PPA R37 receiver shall be encased in black, PC/ABS impact-resistant plastic with a hinged battery door. The receiver shall be a body-pack style and include a detachable belt-clip for hands-free operation. The receiver shall have a 3.5mm stereo/mono jack to accommodate stereo or mono low impedance earphones, headphones and neckloops. The receiver shall have a combination volume control with power on/off rotator dial. It shall have a green LED indicating battery and system status codes. The R37 shall have access to 17 preset wideband channels between 72-76MHz. Channel selection shall be made by pushing the seek button inside the battery compartment. The receiver shall have channel-lock capability.

The receiver shall have a slide switch inside the battery compartment to select disposable Alkaline or NiMH rechargeable battery operation. It shall have charger contacts on the bottom of the receiver for use with Williams Sound drop-in chargers CHG 3512 and CHG 3502. The R37 shall operate up to 50 hours with two disposable AA Alkaline batteries and up to 32 hours with two AA NiMH rechargeable batteries (BAT 026).

The receiver shall provide a maximum out of 35mW at 16ø with an earbud type earphone. The systems audio frequency response shall be 200Hz to 15kHz ± 3dB and the signal to noise ratio shall be 65dB min. The receiver sensitivity shall be 2μV or better at 12dB Sinad with squelch defeated. The R37 shall accept up to ±75kHz FM deviation and have a 75 μ s de-emphasis time constant.
The R37 shall have FCC, Industry Canada approvals and be compliant with RoHS and WEEE regulations. The receiver shall be covered by a Lifetime PLUS Limited Warranty, excluding earphones, headphones and batteries. This receiver model shall be the Williams Sound model PPA R37.

PPA T46 Architectural and Engineering Specifications

The transmitter shall be a wide-band body-pack transmitter and shall operate on 17 selectable frequencies between 72MHz and 76MHz. It shall operate for up to 30 hrs with two AA Alkaline batteries and be housed in a black plastic enclosure with an aluminum faceplate. It shall have battery recharge ability utilizing Williams Sound drop-in chargers.

The transmitter shall have a 3.5 mm microphone jack and a 2.5 mm auxiliary audio input jack. The microphone cord will serve as the transmitting antenna. The Transmitter shall have three buttons on the front to access channel select, master and aux gain, compression on/off, channel lock and screen adjustments. There shall be an OLED screen on the front of the Transmitter displaying current operating status and menu information.

The transmitter shall have the ability to operate in dual channel mode whereby the user can switch between two different transmitting channel presets, each with its own set-up parameters (channel, master volume, aux volume).
There shall be a power switch which also serves as a microphone mute control on the top bezel of the transmitter.
The transmitter shall have wide band FM modulation at 75 KHz peak with a frequency response of 180 Hz to 13 KHz.
The transmitter shall be covered under a limited lifetime parts and labor warranty.
This transmitter shall be the Williams Sound model PPA T46.

Features

• 17 selectable channels
• 72-76 MHz
• Auxiliary input - broadcast any audio source
• FM signal, compression, mute control
• Operates up to 150’ (46 m)
• Improves listening for individuals or groups
• System Includes
  • (1) FM Body-pack Transmitter (PPA T46)
  • (1) FM Body-pack Receiver (PPA R37)
  • (1) Single Mini Earphone (EAR 041)
  • (1) Folding Headphone (HED 021)
  • (1) Audio Input Cable (WCA 087)
  • (1) Lavalier Microphone (MIC 090)
  • (2) Rechargeable NiMH AA Batteries (BAT 026-2)
  • (1) Dual Drop-in Charger (CHG 3502)
  • (1) System Carry Case (CCS 043)

Specifications