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Williams Sound PPA T45NET Tranmitter

Personal PA FM Base Station Transmitter with Network Control

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What's in the box:

  • Williams Sound PPA T45NET Personal PA FM Base Station Transmitter with Network Control
  • ANT025 - 39" Telescoping Whip Antenna for T45 Transmitter
  • TFP 048 Power Supply for PPA T45 and PPA T45NET
  • Limited Lifetime Warranty, Limited 90-Day Warranty on Included Accessories

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The cutting-edge Williams Sound PPA T45Net transmitter offers control or monitoring capability from any remote location, 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 T45Net is ideal for large venues where superior coverage is essential.


  • Network control capability via ethernet (10-base-T) using any web browser
  • Multiple digital audio inputs (AES, SPDIF) provide direct connection to digital signal sources
  • OLED high-resolution screen with simplified menu navigation, offers comprehensive & convenient access to full system functions
  • DSP audio processing
  • Sleek & stylish new design
  • Simple setup and operation
  • 1000' operating range
  • OLED display, push-button menus
  • Microprocessor controlled
  • Adjustable RF power output
  • Combo XLR, ¼" TRS inputs
  • Lifetime PLUS Limited Warranty (90 days on accessories)

Be sure to check out the brochure and Spec sheet for more features and information!

Specifications for the Williams Sound PPA T45NET

{ "General" : { "Dimensions" : "8.45” W x 8.25” D x 1.72”H (21.5 cm x 21 cm x 4.4 cm)", "Weight" : { "Transmitter" : " 3.0 lbs (1.36 kg)", "Shipping Weight" : " 4.50 lbs (2.04 kg)  (Transmitter, Power Supply, Antenna and packaging)" }, "Color" : "Black/Silver with black 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" ], "Power Supply" : { "Desktop Style Transformer (TFP 048)" : "", "Input" : " 100-240 VAC, 50/60 Hz.  IEC Line Cord", "Output" : " 24 VDC, 750 mA, 18W.  2.5mm ID center positive barrel connector", "Approvals" : "  UL, CUL, Energy Star V, CSA listed" }, "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)" }, "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" : { "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", "*RF Time-out (Sleep Mode)" : "Menu selectable - 30 Min, 4 Hours, or Always On; timer starts when audio is below the -21dB VU level and no buttons are pressed", "RF Power" : "Menu selectable - Full, Medium, Low, Off", "RF Outputs" : "(1x) #10-32 stud connector in center of unit (pcb mounted)(1x) F-connector on rear chassis", "RF Transmit Indicator" : "1 Green LED, indicates RF “On Air”" }, "Audio" : { "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" : "=74 dB Transmitted RF", "Total Harmonic Distortion" : "Less than 0.25% @ 1 kHz (RF output)", "Common Mode Rejection" : ">57 dB @ 1 kHz, Mic or Line", "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", "Audio Input Gain Adjust" : "In menu, adjustable to 0 to -50 dB, in 1dB steps", "Phantom Power" : "14.4 VDC applied through 2.2 kΩ 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", "Input Levels (Bal or Unbal)(at Audio Input Gain = 0dB" : [ "Nominal (1st Amber LED)", "Overload Warning(Displayed on Screen)", "Absolute Maximum Ratings*" ], "Microphone" : [ "-55 dBV (1.7 mV RMS)", "-15 dBV (180 mV RMS)", "+20dBV (10.0 V RMS)" ], "Line" : [ "-25 dBV (55 mV RMS)", "+16 dBV (6.3 V RMS)", "+20 dBV (10.0 V RMS)" ], "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 Ω" }, "Other" : { "Ethernet" : "RJ-45 on back of unit (PPA T45NET and PPA T45 NET D) supports CAT5e cable lengths up to 328 feet (100 meters); 10/100 Base-T IEEE 802.3 compliant, unique MAC address.  Cat5e sheilded cable must be used to meet FCC requirements.**", "Dante" : "RJ-45 on back of unit (PPA T45 NET D only) supports CAT5e cable lengths up to 328 feet (100 meters); 10/100 Base-T IEEE 802.3 compliant, unique MAC address.  Cat5e sheilded cable must be used to meet FCC requirements.**", "Approvals" : "FCC including Part 15**, RoHS2, WEEE, Industry Canada", "Warranty" : "Lifetime PLUS Limited Warranty (90 Days on most accessories)" } }

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