Williams Sound PPA T27 FM Transmitter

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  • PPA 727
  • Williams Sound PPA T27 FM Transmitter
MSRP: $880.00
— You save $86.00
Frequently bought together:


The PPA T27 transmitter broadcasts a speaker’s voice, music program or audio service wirelessly up to 1000 feet to a listening audience. Audience participants can use the optional any FM receiver operating on the 72-76 MHz frequency to pick up the broadcast. The speaker simply connects a microphone with a 3.5mm plug into the unit to broadcast their voice. Unit also can connect to a sound system through a line-level (RCA) jack to broadcast music or other audio service. Meets Americans with Disabilities Act (ADA) accessibility requirements and is covered by a Lifetime PLUS Limited Warranty.


  • Simple set-up and operation
  • High-contrast LED display and push-button frequency selection
  • Up to 1000’ operating range
  • Flexible 3.5mm mic and RCA line-level inputs


  • Heavy duty black plastic case
  • Microprocessor controlled with push button configuration.
  • Operating range of up to1000ft. with optional ANT 005.
  • 17 wideband channels operating on the hearing assistance bandwidth between 72 MHz to 76 MHz.
  • ‘Rubber duckie’ antenna output through the top of the enclosure.


Dimensions & Weight: 4.1” W x 6.1” L x 1.3” H (104.1 mm x 154.9 mm x 33 mm)
7.8 oz. (221 g)
Color: Black
Power (U.S./Canada): 105-130 VAC, 50-60 Hz, 3.2 W at 120 VAC
Operating Frequencies:

72-76 MHz*: 72.1 (CH A), 72.2 (CH K), 72.3 (CH B), 72.4 (CH N), 72.5 (CH C),

72.6 (CH O), 72.7 (CH D), 72.8 (CH P), 72.9 (CH E), 74.7 (CH I), 75.3 (CH J),

75.4 (CH R), 75.5 (CH F), 75.6 (CH S), 75.7 (CH G), 75.8 (CH T), 75.9 (CH H)

Frequency Selector: External switches, 17 channels (lockable)
RF Field Strength: Does not exceed 80mV/m @ 3m
Nominal Range: Up to 1000 feet (305 m) w/standard ANT 021 “rubber duckie” antenna or optional ANT 005 coaxial antenna.
Modulation: FM, 75 kHz deviation (wide–band) max.
Stability: ± .005% over 0-50˚C
Pre-Emphasis: 75 µS
Frequency Response: 85Hz - 14kHz ±3dB
Distortion: 1% Max. THD
Signal to Noise Ratio: 65 dB with R35 Receiver
Microphone Input: 3.5mm mini phone jack, supplies +DC for electret mics
Mic Input Level: 1–10 mV, nominal
Line-Level Input: RCA Jack, Hi Z, unbal.
Line Input Level: .1–1 Vrms, nominal
Input Attenuator: Pot, screwdriver-adjustable
Antenna Outputs:

Thread mount for ANT 021 “rubber duckie” antenna or ANT 025 telescoping antenna 

RF connector for ANT 024 dipole or ANT 005 coaxial antenna

Approvals: FCC, Industry Canada, RoHS, WEEE
Warranty: Lifetime PLUS Limited Warranty, 90 Days on most accessories.


System Includes

  • PPA T27 FM transmitter (1)
  • ANT 021 antenna (1)
  • WCA 013 audio cable (1)
  • TFP 036 power supply (1)


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Warranty Information

Lifetime Limited Warranty
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2 Reviews

  • 4
    Perfect for our facility

    Posted by Andrew D on 15th Aug 2023

    We use it for our factory's training sessions, and it was highly effective in transmitting audio to our employees' receivers.

  • 4
    Good sound quality

    Posted by Jerry, NV on 25th Mar 2015

    The sound quality good under certain conditions, and robust build, I really like it, happy with it so far

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