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PTX-3

UHF DIGITAL HYBRID IFB TRANSMITTER

INSTRUCTION MANUAL

CLEAR-COM WIRELESS IFB

Содержание PTX-3

Страница 1: ...PTX 3 UHF DIGITAL HYBRID IFB TRANSMITTER INSTRUCTION MANUAL CLEAR COM WIRELESS IFB...

Страница 2: ...Parkway Alameda CA 94501 U S A Vitec Group Communications Ltd 7400 Beach Drive IQ Cambridge Cambridgeshire United Kingdom CB25 9TP Vitec Group Communications Room 1806 Hua Bin Building No 8 Yong An Do...

Страница 3: ...tor 1 5 Antenna 1 6 Front Panel Controls and Functions 1 6 PTX 3 Front Panel 1 6 OFF TUNE XMIT Switch 1 6 Power Up Sequence 1 6 Main Window 1 7 Frequency Window 1 7 Audio Input Gain Window 1 8 Setup W...

Страница 4: ...Vitec Group Communications PTX 3 UHF Digital Hybrid IFB Transmitter ii Warranty Repairs and Returns W ii Non Warranty Repairs and Returns W ii Extended Warranty W ii Liability W iii...

Страница 5: ...apparatus combination to avoid injury from tip over 11 Unplug this apparatus during lightning storms or when unused for long periods of time 12 Refer all servicing to qualified service personnel Serv...

Страница 6: ...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 Rad...

Страница 7: ...tal Hybrid IFB Transmitter The transmitter can be powered from any external DC source of 6 to 18 Volts at 200 mA maximum or from the provided 12 Volt power supply with a locking power connector The un...

Страница 8: ...inputs The four DIP switches allow setting the input sensitivity for low levels such as microphone inputs or for high levels such as line inputs balanced or unbalanced The switches also offer special...

Страница 9: ...ther types of wireless systems the DSP emulates the appropriate audio processing and companding for the chosen mode PILOT TONE SQUELCH SYSTEM Clear Com IFB systems use a special pilot tone so that val...

Страница 10: ...TRANSMITTER The PTX 3 transmitter operates at 250 mW to ensure a clean signal free of dropouts and noise All transmitter circuits are buffered and filtered for excellent spectral purity The clean RF s...

Страница 11: ...detailed below Switches 1 and 2 adjust the XLR pin functions while switches 3 and 4 adjust the input sensitivity Table 1 1 Mode Switches POWER INPUT CONNECTOR The PTX 3 is designed to be used with th...

Страница 12: ...er to be set up without transmitting The operating frequency may only be selected in this mode XMIT Normal operating position The operating frequency may not be changed in this mode though other setti...

Страница 13: ...Audio limiting is indicated when the audio bargraph extends all the way to the right and widens somewhat Clipping is indicated when the zero in the lower right corner changes to a capital C The Up and...

Страница 14: ...ncies not currently in the group Pressing and holding the Up or Down button scrolls quickly through the entire range AUDIO INPUT GAIN WINDOW Pressing the MENU button once from the Frequency window nav...

Страница 15: ...ng any other item navigates to the associated setup screen ROLLOFF SETUP SCREEN The ROLLOFF setup screen controls the low frequency audio response of the PTX 3 by moving the 3 dB corner of a 4 pole lo...

Страница 16: ...the Clear Com PRC 2 400 Compatibility mode for some non Clear Com equipment 100 Compatibility mode for some older non Clear Com equipment 200 Compatibility mode for some older non Clear Com equipment...

Страница 17: ...e chosen to be free of intermodulation products Refer to receiver manual for more information in the two user programmable frequency groups up to 16 frequencies can be programmed per group Note The TU...

Страница 18: ...ill be displayed to the immediate left of the transmitter switch settings in the Frequency window The letter identifies the selected factory or user tuning group Any time the currently tuned frequency...

Страница 19: ...t tuning group ADDING DELETING USER PROGRAMMABLE FREQUENCY GROUP ENTRIES Note Each User Programmable Frequency Group u or v has separate contents We recommend that you consider the larger issue of fre...

Страница 20: ...TX 3 Ground Lift Jumper 2 Set the MODE switches on the rear panel to match the specific input source to be used See MODE Switches 3 Insert the power supply plug into the 6 18 VDC jack on the rear pane...

Страница 21: ...noise The input limiter will handle peaks over 15 dB above full modulation regardless of the gain control setting Occasional limiting is often deemed desirable indicating that the gain is correctly s...

Страница 22: ...ot on same frequency Check on transmitter and receiver 4 Operating range is too great 5 Transmitter antenna not connected 6 Transmitter switch in the TUNE position Switch to XMIT mode No Sound or Low...

Страница 23: ...le suppose you need to know which block covers 685 500 MHz which is in the middle of the Block 26 frequency range 685 500 divided by 25 6 26 77734375 The first two digits left of the decimal are the b...

Страница 24: ...ncy so it is acceptable to use an antenna from an adjacent block above or below the operating frequency if some loss in range can be tolerated Part of block 23 is not used since it covers a 608 to 614...

Страница 25: ...k 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 25 C Temperature Stability 001...

Страница 26: ...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 f...

Страница 27: ...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...

Страница 28: ...Vitec Group Communications PTX 3 UHF Digital Hybrid IFB Transmitter 2 4...

Страница 29: ...warranty of 90 days Headsets handsets microphones and spare parts have a limited warranty of one year UHF wireless IFB products have a limited warranty of one year UHF wireless intercom systems have...

Страница 30: ...ailures use the following contact information Europe Middle East and Africa Tel 44 1223 815000 Email SalesSupportEMEA vitecgroup com North America Canada Mexico Caribbean US Military Tel 1 510 337 660...

Страница 31: ...NOT APPLY TO YOU IN ANY EVENT TO THE MAXIMUM EXTENT PERMITTED UNDER APPLICABLE LAW VGC S LIABILITY TO CUSTOMER HEREUNDER SHALL NOT UNDER ANY CIRCUMSTANCES EXCEED THE COST OF REPAIRING OR REPLACING AN...

Страница 32: ...Vitec Group Communications Warranty i v...

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