Williams Sound FM T55 FM+ Assistive Listening System Transmitter with WaveCAST Wi-Fi (Discontinued)
Usually arrives in 5-9 business days.
The cutting-edge Williams Sound PPA T45 transmitter offers multiple digital audio input options, and an OLED high-resolution screen with easy-to-manage menu navigation.
The cutting-edge PPA T45 transmitter offers multiple digital audio input options, and an OLED high-resolution screen with easy-to-manage menu navigation. Features 3 powerful microprocessors and the same high-quality audio and RF performance you’ve come to expect from Williams Sound. It’s technology that takes the guesswork out of complex audio installation. Simply select among voice, music, or hearing assistance in the application preset menu, and this transmitter quickly configures itself. With a range of up to 1000 feet, the PPA T45 is ideal for large venues where superior coverage is essential.
| Rack Mount | Standard 19" Rack, one EIA rack space high, 1/2 space wide 1–2 units can be mounted in a single rack space with optional RPK 005 (single) or RPK 006 (double) Rack Mount Kits |
|---|---|
| Power Supply | Desktop Style Transformer (TFP 048) Input: 100-240 VAC, 50/60 Hz. IEC Line Cord Output: 24 VDC, 750 mA, 18W. 2.5 mm ID center positive barrel connector Approvals: UL, CUL, Energy Star V, CSA listed |
| Temperature Range | Operating: +32° F to +104° F (0° C to 40° C) Storage: -4° F to +158° F (-20° C to 70° C) |
| Operating Frequencies | 72.1-75.9 MHz , 17 wideband channels (selectable) |
| Frequency Accuracy | ± 2 ppm stability, 0-50˚ C |
| Deviation | ± 75 kHz maximum |
| Pre-Emphasis | 75 µsec |
| RF Field Strength | Does not exceed 80 mV/m at 3 m |
| Compatible Antennas | ANT 005, ANT 021, ANT 024, or ANT 025 |
| Transmission Range | Up to 1000 ft (304 m) with ANT 005 coaxial antenna mounted on rear chassis connector |
| Audio Processor Functions | DSP. Reduced or Normal Compressor Gain, High Pass and Low Pass Filter Frequency control |
| Frequency Response | 22 – 16000 Hz, ±3 dB (flat setting) |
| Signal-to-Noise Ratio | ≥70 dB |
| Total Harmonic Distortion | Less than .25% @ -10 dB V audio line output, 1KHz |
| Common Mode Rejection | >57 dB @ 1 KHz, Mic or Line |
| Test Tone | 400 Hz |
| Audio Level Control | In menu, adjustable to 0 to -50 dB |
| Audio Level Indicators | 10-LED array that reads -18 to +9 dB at 3 dB intervals. 7 Green, 2 Amber, and 1 red LED. Green LEDs indicate normal operating audio level peaks, Amber LEDS indicate close to overload peaks, Red LED indicates overload peaks |
| RF Transmit Indicator | 1 Green LED |
| Power On Indicator | Power button backlit Green indicates power on |
| Headphone Output | 1/4" TRS stereo jack, mono signal, 15.7 mW, maximum in 33 Ω (level adjustable in menu 0 to -40 dB in 2 dB steps) |
| Audio Inputs | (1x) Combination 3-pin XLR, 1/4" (TRS) jack for Mic or Line Level Analog Audio, Balanced or Unbalanced Line Level, or Microphone with Selectable Phantom Power (1x) XLR for Digital Audio, AES3/EBU, supported sample rates 44.1 kHz and 48 kHz (1x) RCA for Digital Audio, S/PDIF, supported sample rates 44.1 kHz and 48 kHz |
| Line Output | RCA jack, -10 dBV (.32 VRMS) output, impedance 100 Ω |
| RF Outputs | (1x) #10-32 stud connector in center of unit (pcb mounted), (1x) F-connector on rear chassis |
| Menu Settings | Audio Presets (Music, Voice, Hearing Assist, Custom), Frequency/Channel selection, Frequency/Channel mode, Audio Input Source (Microphone, Line, Phantom, Digital AES/EB, Digital S/PDIF), High Pass Filter, Low Pass Filter, Compression, RF Output Power, Screen Saver Delay, Test Tone (400 Hz), Headphone Volume, Headphone Source, Ethernet/Network Settings (PPA T45 NET and PPA T45 NET D) |
| RF | Turns off RF signal after 1 hour of no audio activity (timer on/off selectable in menu) |
| Microphone | |
| Nominal (1st Amber LED) | -60dBV (1 mV RMS) |
| Maximum (Input Overload LED) | -20 dBV (100 mV RMS) |
| Absolute Maximum Ratings | +20dBV (10.0 V RMS) |
| Line | |
| Nominal (1st Amber LED) | -8dBV (400 mV RMS) |
| Maximum (Input Overload LED) | +16 dBV (6.3 V RMS) |
| Absolute Maximum Ratings | +20 dB V (10.0 V RMS) |
| Max. Phantom Power | 12 volts (DIN 45596) on the 3-pin XLR connector |
| Approvals | FCC, RoHS2, WEEE, Industry Canada, Energy StarV |
| Color | Black/Silver with black legends on the front, white legends on the back |
| Dimensions (H x W x D) | 1.72" (44 mm) x 8.45" (215 mm) x 8.25" (210 mm) |
| Weight | 3.1 lbs (1.4 kg) |
Model #:
Usually arrives in 5-9 business days.