Williams AV FM T55C Large-area FM+ C Assistive Listening System and Wi-Fi Base Transmitter - DSP Audio Processing

ITEM #: WLS-FM-T55C MFG #: FM T55C

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FM T55C - Overview

The Williams AV FM+ C is the first transmitter of its kind to offer an FM broadcast and Wi-Fi audio broadcast from a single input source. Whether using the FM+ C for assistive listening, language interpretation, or audio description, this "dual broadcast" technology gives users the option of listening to real-time audio stream on their smartphone or tablet using the free WaveCAST receiver app (iOS and Android) or use an available FM receiver from the venue.

The FM+ C has support for Telnet commands via an Ethernet port enabling AV professionals to control and monitor the FM+ C using third-party room control systems.

The FM+ C integrates professional WaveCAST Wi-Fi audio server technology into a Williams AV FM assistive listening system and integrates with third-party room systems. AV professionals can control third-party room systems with Telnet commands via Ethernet and end users can listen with either an FM receiver or with their own smartphone (via the WaveCAST Receiver App). Along with this flexibility comes exceptional audio quality, as the FM+ C is built on a professional digital audio (DSP) platform.

The FM+ C is designed to support those who want to use their own smartphones and headphones for a more discreet assistive listening experience. Simplicity is also available for those who want a more traditional assistive listening system with a dedicated FM receiver and headset. Venues no longer need to choose between providing FM or Wi-Fi assistive listening systems. FM+ C supports both the new iOS and Android WaveCAST Receiver Apps - in addition to all of the current and legacy Williams Sound FM receivers operating on the 72-76 MHz bandwidth.

Most settings can be changed via the front panel interface, or the hosted web interface. A remote programming guide is available upon request.

The FM+ C uses the WaveCAST app to provide an easy-to-use, intuitive user interface. It is available in iOS or Android. Listeners easily select channel and volume level once their personal device is connected to the Wi-Fi network. The app does not work on FM Broadcasts.

  • Features:

    • Dual broadcast transmitter featuring FM and Wi-Fi audio broadcast from a single input source.
    • DSP platform, designed for pro-audio applications, delivers better audio quality for a full, rich sound and greater intelligibility.
    • AV Pros can control the FM+ C system via third-party room controls using Telnet commands via Ethernet. Commands include power, audio gain, channel selection, DSP preset, and more.
     
  • Specifications:

    • Dimensions: (WxDxH) 8.45" x 8.25" x 1.72" (21.5cm x 21cm x 4.4cm)
    • Weight: 3.2 lbs (1.45 kg)
    • Color: Black
    • Temperature Range: Operating: +32°F to +122°F (0°C to 50°C); Storage: -4°F to +158°F (-20°C to 70°C)
    • Ethernet: RJ-45 on back of unit supports CAT 5e cable lengths up to 328 feet (100 meters); 10/100 Base-T IEEE 802.3 compliant, unique MAC address. RJ-45 jack used for web page and streaming audio out. An external Router/DHCP Server is required to stream audio to receiving devices.
    • Operating Frequencies: 72.1-75.9 MHz , 17 wideband channels (selectable)
    • Pre-Emphasis: 75 microsec
    • RF Field Strength: Does not exceed 80 mV/m at 3 m
    • Compatible Antennas: ANT 005, ANT 021, ANT 024, ANT 025, ANT 028, ANT 029, ANT 034
    • Transmission Range: Up to 1000 ft (304 m) with ANT 005 coaxial antenna mounted on rear chassis F-connector
    • RF Outputs: 1x #10-32 stud connector in center of unit (pcb mounted), 1x F-connector on rear chassis
    • Audio Inputs: 1x Combination 3-pin XLR, 1/4" (TRS) jack for balanced or unbalanced line level, or balanced or unbalanced microphone with selectable phantom power. Optional RJ-45 Dante Input ("D" models only).
    • Audio Processor Functions: DSP based; Compression: 1:1, 1.5:1 or 2:1; High-pass and Low-pass Filter Frequency control, Music, Voice, and Hearing Assistance Audio Presets
    • Frequency Response: 31-16000 Hz, ±3 dB (re: 1 kHz) ("Music" Audio Preset)
    • Signal-to-Noise Ratio: 64 dB (typical) Transmitted RF @ 1kHz
    • Total Harmonic Distortion: Less than 0.25% @ 1 kHz (RF output)
    • Common Mode Rejection: Greater than 57 dB @ 1 kHz, Mic or Line mode
    • Phantom Power: 14.4 VDC applied through 2.2 kOhms resistors to analog combo jack: Pin 2 and Pin 3 on XLR jack, or tip and ring on 1/4" TRS jack
    • Headphone Output: 1/4" TRS stereo jack, mono signal, 7.8 mW total power with 33 Ohms
     
  • Item Includes:

    • 1x ANT 025 Antenna
    • 1x TFP 062 Power Supply
    • 1x WLC 004 Line cord
     
  • Warranty:

    • 2-Year Warranty
     

FM T55C - Required Accessories

    California Residents:
    WARNING:
    Cancer and Reproductive Harm - www.P65Warnings.ca.gov