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Summary of Contents for Lectronics IFBT4/E01-VHF
- Page 1 INSTRUCTION MANUAL IFBT4-VHF Frequency-Agile Compact IFB Transmitter IFBT4-VHF, IFBT4/E01-VHF, IFBT4-VHF/X ® Featuring Digital Hybrid Wireless Technology U.S. Patent 7,225,135 Fill in for your records: Serial Number: Rio Rancho, NM, USA Purchase Date: www.lectrosonics.com...
- Page 2 IFBT4-VHF, IFBT4/E01-VHF, IFBT4-VHF/X LECTROSONICS, INC.
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Page 3: Table Of Contents
Synthesized VHF IFB Transmitter Table of Contents General Technical Description ........... 4 Introduction ................ 4 Audio Input Interface ............4 DSP-controlled Input Limiter ..........4 ® Digital Hybrid Wireless Technology ........5 Audio Signal Processing ............ 5 Pilot Tone Squelch System ..........5 Frequency Agility.............. -
Page 4: General Technical Description
IFBT4-VHF, IFBT4/E01-VHF, IFBT4-VHF/X General Technical Description Introduction Audio Input Interface This version of the IFB “base station” transmitter oper- The standard 3 pin XLR connector on the rear panel ates in the television broadcast band from 174 to 216 handles all audio inputs. The four DIP switches allow MHz (US TV channels 7 through 13). -
Page 5: Digital Hybrid Wireless Technology
Synthesized VHF IFB Transmitter ® Digital Hybrid Wireless Technology Frequency Agility Conventional analog systems use compandors for The IFBT4 transmitter uses a synthesized, frequency enhanced dynamic range, at the cost of subtle artifacts selectable main oscillator. The frequency is extremely (known as “pumping”... -
Page 6: Front Panel Controls And Functions
IFBT4-VHF, IFBT4/E01-VHF, IFBT4-VHF/X Front Panel Controls and Functions IFBT4 Front Panel Frequency Window Pressing the MENU button once from the Main window navigates to the Frequency window. The Frequency window displays the current operating frequency in MHz, as well as the standard Lectrosonics hex code. -
Page 7: Compat Setup Screen
Synthesized VHF IFB Transmitter IFB - Lectrosonics IFB compatibility mode. This is the ROLLOFF Setup Screen default setting and is the appropriate setting to The ROLLOFF setup screen controls use with the Lectrosonics IFBR1A or a compat- the low frequency audio response of ible IFB receiver. -
Page 8: Rear Panelcontrols And Functions
IFBT4-VHF, IFBT4/E01-VHF, IFBT4-VHF/X Rear Panel Controls and Functions IFBT4-VHF Rear Panel Input Configuration (Mode Switches) The MODE switches allow the IFBT4 to accommodate a variety of input source levels by changing the input sensitivity and the pin functions of the input XLR jack. -
Page 9: Installation And Operation
Synthesized VHF IFB Transmitter Installation and Operation 10) Once the transmitter audio gain has been set, the 1) The IFBT4 transmitter is shipped with pin 1 of the receiver and other components of the system can XLR input connector tied directly to ground. If a be turned on and their audio levels adjusted. -
Page 10: Accessories
IFBT4-VHF, IFBT4/E01-VHF, IFBT4-VHF/X Accessories DCR12/A5U DCR12/A5U AC power supply for IFBT4 transmitters; 100-240 V, 50/60 Hz, 0.3 A input, 12 VDC regulated output; Locking collar with 5/16”-32 thread 7-foot cord with LZR threaded locking plug and interchangeable blades/posts for use in Europe, UK, Australia and USA. -
Page 11: Troubleshooting
Synthesized VHF IFB Transmitter Troubleshooting NOTE: Always ensure that the COMPAT (compatibility) setting is the same on both transmitter and receiver. A variety of different symptoms will occur if the settings do not match. Symptom: Possible Cause: Display Blank 1) External power supply disconnected or inadequate. 2) The External DC power input is protected by an auto-reset polyfuse. -
Page 12: Specifications
IFBT4-VHF, IFBT4/E01-VHF, IFBT4-VHF/X Specifications Operating Frequencies (MHz): 174.100 to 215.750 MHz Audio Input Config: Balanced and Unbalanced, rear panel selectable for Line, Mic. RTS 1, RTS 2, and Clear Comm Available Frequencies: Audio Input Impedance: Greater than 2 K balanced, greater... -
Page 13: Declaration Of Conformity
Synthesized VHF IFB Transmitter Declaration of Conformity Rio Rancho, NM... -
Page 14: Service And Repair
IFBT4-VHF, IFBT4/E01-VHF, IFBT4-VHF/X Service and Repair If your system malfunctions, you should attempt to correct or isolate the trouble before concluding that the equip- ment needs repair. Make sure you have followed the setup procedure and operating instructions. Check the inter- connecting cables and then go through the Troubleshooting section in this manual. - Page 15 Synthesized VHF IFB Transmitter Rio Rancho, NM...
- Page 16 LIMITED ONE YEAR WARRANTY The equipment is warranted for one year from date of purchase against defects in materials or workmanship provided it was purchased from an authorized dealer. This warranty does not cover equipment which has been abused or damaged by careless handling or shipping.
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