Clear-Com PTX-3

PTX-3

Clear-Com IFB Transmitter BaseStation

Clear-Com PTX-3

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Home > Clear-Com > Party-Line > Wireless IFB Intercom > PTX-3  
 Clear-Com PTX-3 UHF wireless IFB Transmitter basestation with 256 selectable frequencies

Clear-Com PTX-3
Product Code: PTX3
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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. (614.400 - 639.900 MHz). Non-RoHs
Technical Details of PTX3
Operating frequencies (MHz): Block 21 537.600 - 563.100
Block 22 563.200 - 588.700
Block 23 588.800 - 607.900
614.100 - 614.300
Block 24 614.400 - 639.900
Block 25 640.000 - 665.500
Block 26 665.600 - 691.100
Block 27 691.200 - 716.700
Block 28 716.800 - 742.300
Block 29 742.400 - 767.900
Block 944 944.100 - 951.900
 
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 pushbuttonswitch
 
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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