Clear Com PTX3 Wireless IFB Transmitter (Block 19: 486.4-511.9 MHz)

PA SKU # CCM PTX319 MFR # PTX3-19
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  • Product Highlights
  • Digital Hybrid Wireless
  • Backlit LCD Display
  • Selectable LF Roll-Off
  • 250mw RF Output Power
  • Machined Aluminum Case
  • Includes Antenna
  • Includes Power Supply

UHF Wireless IFB Transmitter Base Station with 256 Selectable Frequencies, Frequency Block 19: 486.4 to 511.9 MHz

Wireless IFB (interruptible fold back) systems are used for talent cueing and crew communications in broadcast and motion picture production. In other cases, the IFB system is used by directors and other management to monitor program audio during a production.

UHF wireless IFB Transmitter basestation with 256 selectable frequencies at 100kHz increments. Stand alone or rack mountable with the PRK-2 kit. (486.4 - 691.1 MHz). Non-RoHs
  • Operating Frequencies: 486.4 to 691.1MHz
    Block 19: 486.4 to 511.9 MHz
    Block 20: 512.0 to 537.5 MHz
    Block 21: 537.6 to 563.1 MHz
    Block 24: 614.4 to 639.9 MHz
    Block 25: 640.0 to 665.5 MHz
    Block 26: 665.6 to 691.1 MHz
  • Frequencies Channels (per block): 256
  • Channel spacing: 100 kHz (0.1 MHz)
  • Spurious & Harmonic Suppression: 37 dBc above 1 GHz
  • Frequency Stability: ±.001% (10 ppm) @ 25ºC
  • Temperature Stability: ±.001% (10 ppm) from -30º C to +50º C
  • Channel Selection: Momentary pushbutton switches, TUNE UP and Down
  • Compatibility Modes: IFB, Digital Hybrid Wireless; 400 Mode, 200 Mode, 100 Mode, Mode 3, Mode 6
  • Pilot Tone: 29.997 kHz IFB Mode, 32.765kHz; 200 Mode, 400 Mode step selected, 32.768kHz Mode 6
  • Modulation: FM, ±20 kHz deviation IFB & 100 Mode, ±75kHz 200 & 400 Mode, ±50kHz Mode 3 and Mode 6
  • Audio Frequency Response: 100 Hz to 8 kHz, ±1 dB, IFB MODE system response (see Rolloff), 30Hz to 20kHz ± 1dB, 200 & 400 MODE system response (see Rolloff)
  • Rolloff: Low frequency audio rolloff is Menu selectable for 3 dB down at 35 Hz or 50 Hz
  • Signal to Noise Ratio: 90 dB typical ("A" weighted)
  • RF Power Output: 250 mW (nominal)
  • Output Impedance: 50 Ohms
  • Audio Input Levels: 0 dBu for Line, RTS1 & RTS2, -10 dBu for ClearCom, and -42 dBu mic dry inputs, +/-50VDC max
  • Audio Input Config: Balanced and Unbalanced, rear panel selectable for Line, Mic, RTS 1, RTS 2 and ClearCom
  • Audio Input Impedance: Greater than 2 K balanced, greater than 1K unbalanced at any gain setting
  • Control Range: -18 dB to +24 dB (0 dB nominal center), software selectable
  • Audio Input Jack: Standard XLR female connector
  • Input Power: 12 to 14 VDC typical, 200 mA max; Max input range 6 to 18 VDC
  • Power Input Jack: Coax type, locking LZR RL26AE
  • Indicators: Backlit Liquid Crystal Display. Displays modulation meter, frequencies, modes, rolloff, audio level, and tuning groups
  • Front Panel Controls:
    MENU momentary pushbutton switch
    Power OFF-TUNE-XMIT, 3 position slide switch
    Select Up momentary pushbutton switch
    Select Down momentary pushbutton switch
  • Rear Panel Controls: Input Mode Select, 4 section DIP switch
  • Weight: 9oz
  • Size: 5.25" long (including connectors) x 3.25" wide x 1.25" high
  • Emission designator: 180KF3E
  • The T4 IFB transmitter is FCC type accepted under Part 74: 470 -
  • 608MHz and 944.1 - 951.9 MHz
  • The FCC requires that the following statement be included in this
  • manual:
    This device complies with FCC radiation exposure limits as set forth for an uncontrolled environment. This device should be installed and operated so that its antenna(s) are not co-located or operating in conjunction with any other antenna or transmitter. A separation distance of at least 20cm (8 inches) must be maintained to comply with the FCC Radio Frequency Maximum Permissible Exposure (MPE) requirements.
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