PFM PRO RCH

Personal FM Listening System

Product Highlights

  • For enhanced listening
  • Rechargable system
  • Operates up to 150’ (46 m)

Description

The PFM PRO and rechargeable PFM PRO RCH deliver superior audio directly to the ear, enhancing sound at home, work, or school – anywhere background noise or distance from the source makes listening difficult.  Each system features 17 selectable channels on the 72-76 MHz band and has an operating range of up to 150 feet. A versatile 3.5mm jack allows for a variety of earphones and headphone options, and is compatible with neckloops and telecoil-equipped hearing aids (not included with system).  

 DISCLAIMER:  FCC rules limit use of this equipment to auditory assistance.

NOTE: The PFM PRO and PFM PRO RCH systems are approved by the FCC for operation in U.S. markets. These systems cannot be used in all countries. Check with your government´s radio regulations for 72-76 MHz operation.

 

Applications:

  • Classrooms
  • Small-group listening
  • Employee training
  • Consultations
  • One-on-one conversations

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) AA Rechargeable NiMH Batteries  (BAT 026-2)
  • (1) System Carry Case  (CCS 043)
  • (1) Dual Drop-in Charger (CHG 3502)
PFM PRO RCH NB

Features

  • 17 selectable channels 72-76 MHz
  • Auxiliary input -- broadcast any audio source
  • FM signal, compression, mute control
  • Improves listening for individuals or groups
  • Lifetime PLUS Limited Warranty

Specifications

BAT 026-2

NiMH, 1.2 Volt, 1500 mAh

EAR 041

Style Single, in-ear, isolation earphone
Plug 3.5mm mono
Cord 39"
Driver Size 10 mm
Nominal Impedance 16Ω
Freq. Response 20 - 20kHz
Weight 6g
Max Power Input 5 mW
Sensitivity 104 dB @ 1kHz
Replacement Silicone Tip EAR 043 (0ne pair)

HED 021

Style

Mono, folding headphone

Plug

3.5mm mono

Cord

39"

Driver Size

30 mm

Nominal Impedance

32Ω

Freq. Response

20 - 20kHz

Weight

52g

Max Power Input

100 mW

Sensitivity

110 dB @ 1kHz

Replacement Pads

HED 023 (one pair)

MIC 090

Color

Black

Weight

15 g (0.5 oz)

Plug

3.5mm mono

Cord

39"

Phantom Powered

No

Nominal Impedance

1500Ω @ 1kHz

Operating Voltage

1.5 - 10VDC

Freq. Response

20 - 18kHz

Pick-Up Pattern

Omni-direct

Transducer Type

Back electret

Max Input Sound Level

110dB SPL

Sensitivity

-56dB ± 3dB

Replacement Windscreen

WND 090

Replacement Lapel Clip

CLP 090

Warranty

90 days

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 R37

Dimensions: 4.1" x 2.85" x 1.38" (104 x 72 x 35mm)
Weight: 4.6oz (130g) with batteries. 2.6oz (73g) without batteries     
Color: Black
Battery Type: (2) AA Alkaline or 2 x AA NiMH    
Battery Life: Two (2) AA non-rechargeable alkaline batteries (BAT 001), approx. 50 hrs
  (2) AA rechargeable NiMH batteries (BAT 026), 1500 mAh, approx. 32 hrs
Current Consumption: 52mA nominal
Temperature Range: – 0 to 50C
Channels 17, accessed via seek button in battery compartment
Operating Freq.: 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, 75.9 MHz*
Intermediate Freq.: 75 kHz
FM Deviation: 75 kHz
De-Emphasis: 75 µS
LED Indicator: Power:  Green; Low Battery:  Flashes Green
AFC Range: ± 120 kHz
Sensitivity: 2 µV at 12 dB Sinad with squelch defeated
Input Overload: 100 mV
Frequency Response: 200 – 15 kHz
Modulation: FM, +/- 75 kHz peak deviation
Signal-to-Noise Ratio: 65 dB min @ 100 uV
Receive Antenna: Integral with earphone/headphone cord
Audio Output: 35 mW max, peak into 16 ohms
Output Connector: 3.5 mm stereo/mono phone jack
Earphone: Earbud-type with foam cushion, 3.5 mm plug, 32 Ω
Auto Shut-off Enters sleep mode after approx 6 mins of no RF signal
Approvals: FCC, Industry Canada, RoHS, WEEE
Warranty: Lifetime PLUS Limited Warranty, 90 Days on most accessories.

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.

PPA T46

Dimensions:

4.1" L x 2.8" W x 1.1" D (104 mm x 71 mm x 28 mm)

Weight:

2.6 oz (74 g), no batteries

Color:

Black/Silver

Enclosure Material:

Shatter-resistant PC/ABS plastic with textured scratch-resistant aluminum faceplate

Battery Type options:

Two (2) AA 1.5 V non-rechargeable Alkaline batteries (BAT 001-2), 75 mA nominal current drain, up to 30 hours battery life, or

Two (2) AA 1.5 V NiMH rechargeable batteries (BAT 026-2), 75 mA nominal current drain, up to 20 hours battery life per charge, recharges in 14–16 hours, uses CHG 3502 or CHG 3512 Charger

Operating Frequencies:

Selectable, 17 channels, 72.1 – 75.9 MHz*.  Switchable 8 or 17 Channel Mode.  (8-channel mode is used for simultaneous groups)

Stability:

± .005%, frequency synthesized, crystal reference, PLL

Modulation:

Wide-band FM, 75 kHz peak, 75 µS pre-emphasis

RF Output:

80 mV/m at 3 m (max. allowed by FCC rules)

Frequency Response:

180 Hz to 13 kHz, ± 3 dB at 1% max. THD

Signal-to-Noise Ratio:

65 dB (typical) transmitted

Transmit Antenna:

Integral with microphone cord

Microphone:

Electret type, 3.5 mm mono plug

External Display:

OLED for status and menu information.

Status: Ch/Freq, Mic Audio Level, Auxiliary Input Audio Level, Battery Status, Mic Mute, Channel Lock, Dual-Preset mode.

Menu: Ch/Freq display mode select, Volume, Aux Input, Compression,

17 or 8-channel mode, screen time out, screen brightness, restore default settings

External Controls:

Momentary push button: push and hold 3 seconds for power On/Off, push and release for microphone mute On/Off. 

Left, Right and Menu buttons for accessing and changing transmitter settings.  Battery type switch (Alkaline or NiMH) located behind the battery compartment door.

External Indicators:

Power LED - Green, flashes when battery is low

Mic Input:

3.5 mm mono jack with electret mic bias, adjustable gain with

25 dB range

Aux Input:

2.5 mm stereo jack, adjustable gain with 60 dB range

Audio Compression:

1:1 (off) or 2:1 (on) selectable in menu

 

 

Accessories for Personal FM System—Rechargeable

All Williams Sound headphones and earphones are compatible with this product.

BAT 026-2 Two AA NiMH rechargeable batteries

EAR 008 Over-ear, hook earphone

EAR 013 Single mono earbud

EAR 013 T Single Mini Earphone w/ Eartip

EAR 014 Dual Mini Earbuds

EAR 014 T Dual mini earbud w/ Eartips

EAR 022 Surround Earphone

EAR 041 Single, in-ear, isolation earphone

EAR 042 Dual, in-ear, isolation earphones

HED 008 Hearing-protector, dual headphones

HED 021 Folding headphones

HED 024 Stereo Headphones

HED 026 Rear-wear, mono headphones

HED 027 Heavy-duty, folding, mono headphones

HED 040 Hearing-protector, dual ear muff headphones

MIC 014-R Plug Mount Mic

MIC 020 Lightweight rear wear mic

MIC 044 Noise-Cancelling Mic

NKL 001 Neckloop 18" (mono plug)

downloads

Download/View Name Type Language
PPA T46 User Manual Spanish Manuals Español
PFM PRO/PFM PRO RCH User Manual Manuals English
PPA T46 Sell Sheet Spanish Sell Sheets Español
PPA T46 User Manual Portuguese (Brazil) Manuals Portuguese
PFM PRO/PFM PRO RCH Specifications Specifications English
PPA R37 Manual Manuals English
PPA T46 User Manual English Manuals English

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