Instruction Manual

Multi-Frequency IFB Transmitter
Table of Contents
Introduction ............................................................................................................................................................................................4
General Technical Description ..............................................................................................................................................................5
Audio Input Interface ............................................................................................................................................................................5
Audio Processor ................................................................................................................................................................................... 5
Compandor Noise Reduction ...............................................................................................................................................................5
T1 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
T1 Front Panel ...................................................................................................................................................................................... 7
OFF/TUNE/XMIT Switch ......................................................................................................................................................................7
Power Up Sequence .............................................................................................................................................................................7
LED Display ..........................................................................................................................................................................................7
Adjusting Display Intensity ...................................................................................................................................................................7
Freq Buttons (Up and Down) ................................................................................................................................................................ 7
Audio Level Control ..............................................................................................................................................................................7
-20/0 LEDs ...........................................................................................................................................................................................7
Rear Panel Controls and Functions ..................................................................................................................................................... 8
T1 Rear Panel ......................................................................................................................................................................................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
Specifications .......................................................................................................................................................................................13
Service and Repair ...............................................................................................................................................................................14
Returning Units for Repair .................................................................................................................................................................. 14
Rio Rancho, NM 3