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This kit provides everything you need to accommodate individuals for hearing accessibility in a small-group settings such as libraries, conference rooms and information desks. This portable, easy-to-use FM system operates at 72-76 MHz on one of 17 selectable channels. This single kit satisfies ADA requirements for multiple-room facilities.
NOTE: The FM ADA Compliance Kit is approved by the FCC for operation in U.S. markets. The system cannot be used in all countries. Check with your government´s radio regulations for 72-76 MHz operation.
Disclaimer: FCC rules limit use of this equipment to auditory assistance.
Corporate Board Rooms
Heavy-duty, folding, mono headphones
20 - 20kHz
Max Power Input
96 dB @ 1kHz
EAR 035 (one pair)
10-3/8" (L) x 6-¼" (W) x 1/8" (H)
1.2 - 10 VDC
1.2 - 10 VDC
100 Hz - 8 kHz
-38 dB ± 3 dB
3.5 mm mono
20 Hz – 18 kHz
-56 ± 3 dB
3.5 mm, right-angle
|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|
|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|
|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.|
4.1” L x 2.8” W x 1.1” D (104 mm x 71 mm x 28 mm)
2.6 oz (74 g), no batteries
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
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
Selectable, 17 channels, 72.1 – 75.9 MHz*. Switchable 8 or 17 Channel Mode. (8-channel mode setting corresponds with PPA R35-8 receiver channels)
± .005%, frequency synthesized, crystal reference, PLL
Wide-band FM, 75 kHz peak, 75 µS pre-emphasis
80 mV/m at 3 m (max. allowed by FCC rules)
180 Hz to 13 kHz, ± 3 dB at 1% max. THD
65 dB (typical) transmitted
Integral with microphone cord
Electret type, 3.5 mm mono plug
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
Momentary push button: push and hold 3 seconds for power On/Off, push and release for microphone mute On/Off. “Up”, “Down” and “Menu” buttons for accessing and changing transmitter settings. Battery type switch (Alkaline or NiMH) located behind the battery compartment door
Power LED - Green, flashes when battery is low
3.5 mm mono jack with electret mic bias, adjustable gain with
25 dB range
2.5 mm stereo jack, adjustable gain with 60 dB range
1:1 (off) or 2:1 (on) selectable in menu
PFM R31, PFM R32, PFM R33, PFM R36, PPA R35, PPA R37, PPA R35-8, PPA R1600,
FCC, Industry Canada, RoHS, WEEE
Lifetime PLUS Limited Warranty, 90 Days on most accessories.
The PPA T46 is FCC Part 15 compliant.
Effective July 11, 2016, the FCC has mandated tighter emissions limits on auditory assistance transmitters (72-76 MHz) manufactured or imported after this date to help avoid interference with and/or degradation of other airborne signals (All products manufactured prior to July 11, 2016, are compliant). Williams Sound FM transmitters – PPA T46, PPA T27 and PPA T45 (all models) – all have received a Grant of Certification from the FCC and are fully compliant/approved under this new mandate.
FM ADA KIT 37 RCH: Includes same as FM ADA KIT 37, except batteries are rechargeable.
|FM Brochure - Low Res||Brochures||English|
|ADA Hearing Assistance Plaque||Manuals||English|
|FM ADA Kit 37 Specifications||Specifications||English|
|PPA T46 User Manual English||Manuals||English|
|PPA T46 User Manual Spanish||Manuals||Español|
|FM Brochure - High Res||Brochures||English|
|PPA T46 User Manual Portuguese (Brazil)||Manuals||Portuguese|
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