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IFBT4-VHF

Synthesized VHF IFB Transmitter

INSTRUCTION MANUAL

Rio Rancho, NM, USA

www.lectrosonics.com

Fill in for your records:

Serial Number:

Purchase Date:

Featuring Digital Hybrid Wireless

®

Technology

U.S. Patent 7,225,135

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Содержание IFBT4-VHF

Страница 1: ...F Synthesized VHF IFB Transmitter INSTRUCTION MANUAL Rio Rancho NM USA www lectrosonics com Fill in for your records Serial Number Purchase Date Featuring Digital Hybrid Wireless Technology U S Patent 7 225 135 ...

Страница 2: ...IFBT4 VHF LECTROSONICS INC 2 ...

Страница 3: ...ting 12 Specifications 13 Service and Repair 14 Returning Units for Repair 14 Consumer Alert for US Users FCC Order DA 10 92 Most users do not need a license to operate this wireless microphone system Nevertheless operating this microphone system without a license is subject to certain restrictions the system may not cause harmful interference it must operate at a low power level not in excess of ...

Страница 4: ...cial settings to provide the proper input configurations to match to Clear Com RTS1 and RTS2 intercom systems Pin 1 of the XLR input connector is normally connected to ground but an internal jumper can be moved if a float ing input is desired Phantom supplied microphones may be connected without the need for DC isolation at the input of the transmitter A user selectable low frequency roll off can ...

Страница 5: ...ne is located well above audio frequencies and is never passed through to the receiver s audio output Frequency Agility The IFBT4 transmitter uses a synthesized frequency selectable main oscillator The frequency is extremely stable over a wide temperature range and over time The transmitter s standard tuning range covers 239 frequencies from 174 to 216 MHz in 175 kHz steps to alleviate interferenc...

Страница 6: ...E switches Setup Window Pressing the MENU button once from the Audio Input Gain window navigates to the Setup window This window provides access to a menu for various setup screens Initially the active menu item is EXIT Pressing the Up and Down keys permits navigation to the menu items COMPAT and ROLLOFF Pressing the MENU button selects the current menu item Selecting EXIT navigates back to the Ma...

Страница 7: ...the Lectrosonics IFBR1A or a compat ible IFB receiver 400 Lectrosonics 400 Series This mode offers the best audio quality and is recommended if your receiver supports it Press MENU to return to the Setup window Lock Unlock Panel Buttons To enable or disable the control panel buttons navi gate to the Main Window and press and hold the MENU button for about 4 seconds Continue holding the button as a...

Страница 8: ...y The connector dimensions are shown below Lectro sonics P N 21425 has a straight back shell P N 21586 has a locking collar 375 to 475 typ Straight or with locking collar Antenna The ANTENNA connector is a standard 50 ohm BNC type for use with standard coaxial cabling and remote antennas Input Configuration Mode Switches The MODE switches allow the IFBT4 to accommodate a variety of input source le...

Страница 9: ...xample B5 would indicate 205 775 MHz as shown in the table below 175K SWITCH RIGHT 0 1 2 3 2 8M 4 SWITCH 5 LEFT 6 7 8 196 500 196 675 196 850 197 025 197 200 197 375 197 550 197 725 8 196 196 675 196 850 197 025 200 197 375 197 550 197 725 9 A B C D E F 175K SWITCH RIGHT 0 1 2 3 2 8M 4 SWITCH 5 LEFT 6 7 8 197 900 198 075 198 250 198 425 198 600 198 775 198 950 199 125 8 197 900 198 075 198 250 198...

Страница 10: ... and other components of the system can be turned on and their audio levels adjusted Set the power switch on the IFBT4 transmitter to XMIT and adjust the associated receiver and sound system level as required Note There will be a delay between the moment the transmitter is energized and the actual appearance of audio at the receiver output This intentional delay eliminates turn on thumps and is co...

Страница 11: ...to 2 3 dB with somewhat less weight than standard RG 8 with the same 0 400 diameter Available in 25 50 and 100 foot lengths RMP195 4 channel rack mount for up to four IFBT4 transmitters Rocker switch included to work as a master power switch if desired 21425 6 ft long power cord coaxial to stripped tinned leads Coaxial plug ID 080 OD 218 Depth 5 Fits all compact receiver models that use CH12 power...

Страница 12: ...ition Switch to XMIT mode No Sound or Low Sound Level and Receiver is powered on 1 Receiver output level set too low 2 Receiver earphone cable is defective or mis wired 3 Sound system or transmitter input is turned down Distorted Sound 1 Transmitter gain audio level is far too high Check audio level meter on transmitter as it is being used Refer to Installation Operation section for details on gai...

Страница 13: ...hbutton 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 9 ozs Size 5 25 L including connectors x 3 25 W x 1 25 H Emission designator 180KF3E Specifications subject to change without notice FCC Notices This device complies with part 15 of the FCC rules O...

Страница 14: ...pairs Returning Units for Repair For timely service please follow the steps below A DO NOT return equipment to the factory for repair without first contacting us by email or by phone We need to know the nature of the problem the model number and the serial number of the equipment We also need a phone number where you can be reached 8 A M to 4 P M U S Mountain Standard Time B After receiving your r...

Страница 15: ...Synthesized VHF IFB Transmitter Rio Rancho NM 15 ...

Страница 16: ...item Lectrosonics Inc will pay for the cost of returning your equipment to you This warranty applies only to items returned to Lectrosonics Inc or an authorized dealer shipping costs prepaid within one year from the date of purchase This Limited Warranty is governed by the laws of the State of New Mexico It states the entire liablility of Lectrosonics Inc and the entire remedy of the purchaser for...

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