User manual
Williams Sound PFM PRO Personal FM

User Manual for Williams Sound PFM PRO Personal FM Listening System with Alkaline Batteries

• Product category: Assistive Listening Systems Williams Sound
• Brand: Williams Sound
• Description and content of package
• Technical information and basic settings
• Frequently asked questions – FAQ
• Troubleshooting (does not switch on, does not respond, error message, what do I do if...)
• Authorized service for Williams Sound Assistive Listening Systems

Product description

• PPA T46 Personal PA Bodypack Transmitter (Black & Silver) The black & silver Williams Sound PPA T46 Personal PA Bodypack Transmitter broadcasts a speaker’s voice or audio program on one of 17 available channels, 72 to 76 MHz, to listeners using PPA R35-8 or PPA R37 Receivers or an R1600 Speaker (each unit sold separately).The unit features flexible microphone and auxiliary input jacks, push-button on/off/mute controls, channel lock, and selectable compression. This unit has the ability to operate in dual channel mode, allowing the user to easily switch between 2 different transmitting channels, each with its own set up parameters. An OLED screen displays current operating status and menu information. This bodypack transmitter operates up to 30 hours on 2 AA alkaline batteries, and up to 20 hours with 2 NiMH batteries (batteries sold separately).It also has a rechargeable capability when used with Williams Sound drop-in chargers (sold separately). Lightweight and portable, the PPA T46 Transmitter operates at a range of up to 150’ (46m) from the listening audience. It is suitable for providing hearing assistance to students in the classroom, tour group participants, employee training, business meetings, and more. Note: Note: The Personal PA system is approved by the FCC for operation in U.S. markets. The Personal PA cannot be used in all countries. Check with your government

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Technical parameters

• PPA T46 Personal PA Bodypack Transmitter (Black & Silver)

  Operating Frequencies	Selectable, 17 channels, 72.1 to 75.9 MHz Switchable 8- or 17-channel mode 8-channel mode setting corresponds with PPA R35-8 receiver channels
  Stability	±0.005%, frequency synthesized, crystal reference, PLL
  Modulation	Wide-band FM, 75 kHz peak, 75 µs pre-emphasis
  RF Output	80 mV/m at 3 m (maximum allowed by FCC rules)
  Frequency Response	180 Hz to 13 kHz, ±3 dB at 1% maximum THD
  Signal-to-Noise Ratio	65 dB (typical), transmitted
  Antenna	Integral with microphone cord
  Microphone	Electret type, 3.5 mm mono plug
  Display	OLED for status and menu information Status: Channel/Frequency, mic audio level, auxiliary input audio level, battery status, mic mute, channel lock, dual-preset modes Menu: Channel/frequency display mode select, volume, auxiliary 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
  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 Method	1:1 (Off) or 2:1 (On) selectable in menu
  Battery Type	2 x AA 1.5 V BAT 001-2 non-rechargeable alkaline batteries, 75 mA nominal current drain, up to 30 hours battery life Or 2 x AA 1.5 V BAT 026-2 NiMH rechargeable batteries, 75 mA nominal current drain, up to 20 hours battery life per charge, recharges in 14 to 16 hours, uses CHG 3502 or CHG 3512 Charger (sold separately)
  Enclosure Material	Shatter-resistant PC/ABS plastic with textured scratch-resistant aluminum faceplate
  Dimensions (L x W x D)	4.1 x 2.8 x 1.1" (104.1 x 71.1 x 27.9 mm)
  Weight	2.6 oz (73.7 g) without batteries

  Box Dimensions (LxWxH)	5.5 x 5.25 x 1.75"

• PPA R37 Select Channel FM Receiver with Earphone

  Channels	17, Accessed via Seek Button in Battery Compartment
  Operating Frequency	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, 75.9MHz 75kHz Intermediate Frequency
  Deviation	75kHz
  De-Emphasis	75µS
  Range	AFC Range: ±120kHz
  Sensitivity	2µV @ 12dB Sinad with Quelch Defeated
  Max Input Signal	100mV
  Frequency Response	200Hz - 15kHz
  Modulation	FM, ±75kHz Peak Deviation
  Signal to Noise Ratio	65dB Min @ 100µV
  Output Level	35mW Max, Peak into 16 Ohms
  Connectors	3.5mm Stereo/Mono Headphone Jack
  Earphone	Earbud Type, Foam Cushion, 32 Ohm Impedance, Standard 3.5mm Plug
  Antenna	Uses Earphone/Headphone Cord as Antenna
  Battery	2 x AA Alkaline or NiMH Up to 50 Hours Life with Alkaline, Up to 32 Hours with Rechargeable NiMH Enters Sleep Mode After 6 mins with no RF Signal
  Current Consumption	52mA, Nominal
  Indicators	Green Power LED (Flashes for Low Battery)
  Temperature Range	32 to 122°F (0 to 50°C)
  Approvals	FCC, Industry Canada, RoHS, WEEE
  Finish	Black
  Dimensions (HxWxD)	4.1 x 2.85 x 1.38" (104 x 72 x 35mm)
  Weight	4.6 oz (130g) (With Batteries) 2.6 oz (73g) (Without Batteries)

  Box Dimensions (LxWxH)	5.6 x 5.2 x 1.8"

• EAR 041 - Single, In-Ear, Isolation Earphone

  Style	Monaural in-ear
  Plug	1/8" / 3.5 mm mono
  Driver Size	0.4" / 10.0 mm
  Nominal Impedance	16 Ohms
  Frequency Response	20 Hz to 20 kHz
  Power Input	5 mW
  Sensitivity	104 dB @ 1 kHz
  Replacement Parts	Replacement Silicone Tip: EAR 043 (one pair)
  Cord Length	39.0" / 99.1 cm
  Weight	0.2 oz / 6.0 g

  Box Dimensions (LxWxH)	5.45 x 3.2 x 0.45"

• HED 021 Folding Mono Headphones

  Driver Size	1.2" / 30 mm
  Design	On-Ear (Supra-aural)

  Frequency Response	20 Hz to 20 kHz
  Sensitivity	110 dB at 1 kHz
  Impedance	32 Ohms
  Maximum Power Handling	100 mW
  Foldable	Yes

  Audio Connector	1/8" (3.5 mm)

  Cable Length	39" / cm

  Weight	1.8 oz / 52 g

  Box Dimensions (LxWxH)	6.1 x 4.8 x 1.0"

• 3.5mm Stereo to 2.5mm Stereo Auxiliary Audio Input Cable for PPA T46 Transmitter (3')

  Compatible With	PPA T46 Personal PA Body-Pack Transmitter
  Connectors	3.5 mm Stereo Male (Right-Angled) 2.5 mm Stereo Male
  Compliance	RoHS
  Length	3.0' (0.9 m)
  Weight	0.64 oz (18.14 g)

  Box Dimensions (LxWxH)	3.0 x 3.0 x 0.5"

• MIC 090 Mini Lapel Clip Microphone

  Element	Electret condenser
  Pickup Pattern	Omni-directional
  Impedance	1.5 kOhms
  Frequency Response	20 Hz to 18 kHz
  Dynamic Range	79 dB
  Sensitivity	-56 dB (±3 dB)
  Signal-to-Noise Ratio (SNR)	63 dB
  Plug	Right Angle: 1/8" / 3.5 mm
  Cable Length	3.3' / 1.0 m
  Color	Black
  Approvals	RoHS
  Replacement Parts	Replacement Windscreen: WND 006 Replacement Clip: CLP 090

  Box Dimensions (LxWxH)	2.5 x 2.5 x 0.5"

• AA Alkaline Battery (2-Pack)

  Battery Type	2 x AA
  Battery Chemistry	Alkaline
  Battery Voltage	1.2 V

  Box Dimensions (LxWxH)	1.9 x 1.0 x 0.5"

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