Overview
Replaces the PPA T45 and PPA T45 NET
The new FM+ integrates professional WaveCAST Wi-Fi audio server technology into a Williams Sound FM assistive listening system. End users can now listen with either an FM receiver or with their own smartphone (via the WaveCAST Listening App). Along with this flexibility comes exceptional audio quality, as the FM+ is built on a professional digital audio (DSP) platform. Added plus: Its optional Dante interface provides integrators with a full audio networking solution.
The new FM+ 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+ supports both the new iOS and Android WaveCAST Apps -- in addition to all of the current and legacy Williams Sound FM receivers operating on the 72-76 MHz bandwidth.
This version is not Dante compatable
The FM Plus 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.
Specifications
| Dimensions | 8.45" W x 8.25" D x 1.72"H (21.5 cm x 21 cm x 4.4 cm) | ||
| Color | Black/Silver with silver legends on the front, white legends on the back | ||
| 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 |
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| Power Supply | Desktop Style Transformer (TFP 062); Input: 100-240 VAC, 50/60 Hz. IEC Line Cord; Output: 24 VDC, 750 mA, 18W. 2.5mm ID center positive barrel connector | ||
| Power ON Indicator | Push On/Push Off latching power button, backlit green indicates power ON, backlight off indicates power OFF, fading from bright to dark indicates Sleep Mode. | ||
| Temperature Range | Operating: +32° F to +104° F (0° C to 40° C); Storage: -4° F to +158° F (-20° C to 70° C) | ||
| RF Section | |||
| Operating Frequencies | 72.1-75.9 MHz , 17 wideband channels (selectable) | ||
| Frequency Accuracy | ± 2 ppm stability, 0-50Ëš C | ||
| Deviation | ± 75 kHz maximum | ||
| Pre-Emphasis | 75 microsec | ||
| 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 | ||
| RF Outputs | (1x) #10-32 stud connector in center of unit (pcb mounted) (1x) F-connector on rear chassis |
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| RF Transmit Indicator | 1 Green LED, indicates RF "On Air" | ||
| Audio Section | |||
| Audio Processor Functions | DSP based; Compression: 1:1, 1.5:1 or 2:1; High-pass and Low-pass Filter Frequency control | ||
| Frequency Response | 31 – 16000 Hz, ±3 dB (Music Audio Preset) | ||
| Signal-to-Noise Ratio | Greater than or equal to 74 dB Transmitted RF | ||
| Total Harmonic Distortion | Less than 0.25% @ 1 kHz (RF output) | ||
| Common Mode Rejection | Greater than 57 dB @ 1 kHz, Mic or Line | ||
| 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 | ||
| Audio Input Gain Adjust | In menu, adjustable to 0 to -50 dB, in 1dB steps | ||
| 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 | ||
| 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 | ||
| 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) | ||
| Line Output | RCA jack (black), -10 dBV (.32 VRMS); Output impedance 100 ohms | ||
| Input Levels (Bal or Unbal) (at Audio Input Gain = 0dB) |
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| Microphone |
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| Line |
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| 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 | ||
| Operating Systems | Apple iOS 9.1 or newer; Android 6.0 or newer; Blackberry and windows not supported | ||
| Approvals | FCC, RoHS3, WEEE, Industry Canada, CE, PSE, RCM, CB Scheme | ||
| Warranty | 2-year parts and labor | ||
