Lectrosonics Inc IFBT4H Manuale Utente
Multi-Frequency IFB Transmitter
Rio Rancho, NM
3
Table of Contents
Introduction .............................................................................................................................................................................................4
General Technical Description ..............................................................................................................................................................5
General Technical Description ..............................................................................................................................................................5
Audio Input Interface .............................................................................................................................................................................5
Audio Processor ....................................................................................................................................................................................5
Compandor Noise Reduction ................................................................................................................................................................5
T4 IFB Transmitter Block Diagram ........................................................................................................................................................5
Pilot Tone ..............................................................................................................................................................................................6
Frequency Synthesizer .........................................................................................................................................................................6
Power Delay ..........................................................................................................................................................................................6
Microcontroller ......................................................................................................................................................................................6
Transmitter ............................................................................................................................................................................................6
Antenna System ....................................................................................................................................................................................6
Audio Processor ....................................................................................................................................................................................5
Compandor Noise Reduction ................................................................................................................................................................5
T4 IFB Transmitter Block Diagram ........................................................................................................................................................5
Pilot Tone ..............................................................................................................................................................................................6
Frequency Synthesizer .........................................................................................................................................................................6
Power Delay ..........................................................................................................................................................................................6
Microcontroller ......................................................................................................................................................................................6
Transmitter ............................................................................................................................................................................................6
Antenna System ....................................................................................................................................................................................6
Front Panel Controls and Functions .....................................................................................................................................................7
T4 Front Panel ......................................................................................................................................................................................7
OFF/TUNE/XMIT Switch .......................................................................................................................................................................7
Power Up Sequence .............................................................................................................................................................................7
LCD Display ..........................................................................................................................................................................................7
Freq Buttons (Up and Down) ................................................................................................................................................................7
Audio Level Control ...............................................................................................................................................................................7
OFF/TUNE/XMIT Switch .......................................................................................................................................................................7
Power Up Sequence .............................................................................................................................................................................7
LCD Display ..........................................................................................................................................................................................7
Freq Buttons (Up and Down) ................................................................................................................................................................7
Audio Level Control ...............................................................................................................................................................................7
Rear Panel Controls and Functions ......................................................................................................................................................8
T4 Rear Panel .......................................................................................................................................................................................8
XLR Jack ...............................................................................................................................................................................................8
Mode Switches ......................................................................................................................................................................................8
12 VDC (Power Input Connector) ..........................................................................................................................................................8
Antenna .................................................................................................................................................................................................8
XLR Jack ...............................................................................................................................................................................................8
Mode Switches ......................................................................................................................................................................................8
12 VDC (Power Input Connector) ..........................................................................................................................................................8
Antenna .................................................................................................................................................................................................8
Installation and Operation .....................................................................................................................................................................9
Operating Notes ....................................................................................................................................................................................10
Accessories ..........................................................................................................................................................................................10
Troubleshooting ....................................................................................................................................................................................11
Frequency Blocks and Ranges ...........................................................................................................................................................12
Specifi cations .......................................................................................................................................................................................13
Service and Repair ...............................................................................................................................................................................14
Operating Notes ....................................................................................................................................................................................10
Accessories ..........................................................................................................................................................................................10
Troubleshooting ....................................................................................................................................................................................11
Frequency Blocks and Ranges ...........................................................................................................................................................12
Specifi cations .......................................................................................................................................................................................13
Service and Repair ...............................................................................................................................................................................14
Returning Units for Repair ..................................................................................................................................................................14
Introduction
Thank you for selecting the Lectrosonics frequency
agile, narrowband, T4 IFB (Interruptible Foldback) trans-
mitter. The T4 is the result of over 100 years of engi-
neering experience with the very latest components, in
a design that addresses the most demanding profes-
sional applications.
agile, narrowband, T4 IFB (Interruptible Foldback) trans-
mitter. The T4 is the result of over 100 years of engi-
neering experience with the very latest components, in
a design that addresses the most demanding profes-
sional applications.
The Lectrosonics T4 IFB Transmitter along with the
companion R1 or R1a IFB Receivers allow on-air talent
to monitor program audio and receive cues from direc-
tors and other production personnel.
companion R1 or R1a IFB Receivers allow on-air talent
to monitor program audio and receive cues from direc-
tors and other production personnel.
The T4 IFB Transmitter is a rugged, machined alu-
minum package. The input section is adjustable for
minum package. The input section is adjustable for
virtually any microphone or line level audio source. The
antenna is a detachable, locking 1/4 wavelength fl exible
bronze cable that connects to a 50 Ohm BNC connector
on the transmitter.
antenna is a detachable, locking 1/4 wavelength fl exible
bronze cable that connects to a 50 Ohm BNC connector
on the transmitter.
Only the T4 IFB Transmitter is covered in this manual.
Companion receivers are covered in separate manuals.
The T4 IFB Transmitter will operate with any Lectro-
sonics R1 or R1a IFB Receiver in the same frequency
group.
Companion receivers are covered in separate manuals.
The T4 IFB Transmitter will operate with any Lectro-
sonics R1 or R1a IFB Receiver in the same frequency
group.
The T4 is also compatable with the Lectrosonics 100
Series, 200 Series, and 400 Series receivers as well as
several other brand systems.
Series, 200 Series, and 400 Series receivers as well as
several other brand systems.