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Lectrosonics T1 IFB Instruction Manual

Manual is about: Multi-Frequency IFB

Summary of T1 IFB

  • Page 1

    T1 multi-frequency ifb transmitter instruction manual rio rancho, nm, usa www.Lectrosonics.Com fill in for your records: serial number: purchase date:.

  • Page 2

    T1 lectrosonics, inc. 2.

  • Page 3

    Multi-frequency ifb transmitter rio rancho, nm 3 table of contents introduction ............................................................................................................................................................................................ 4 general technical description...

  • Page 4

    T1 lectrosonics, inc. 4 introduction thank you for selecting the lectrosonics frequency agile, narrowband, t1 ifb (interruptible foldback) transmitter. The t1 is the result of over 80 years of engineering experience with the very latest compo- nents, in a design that addresses the most demanding pro...

  • Page 5

    Multi-frequency ifb transmitter rio rancho, nm 5 the t1 ifb transmitter is comprised of a number of functional subsystems, including audio input interface, audio processor, pilot tone, frequency synthesizer, microcontroller, transmitter, antenna system and power supply. (see block diagram.) the t1 i...

  • Page 6

    T1 lectrosonics, inc. 6 pilot tone the t1/r1a system uses an ultrasonic tone modulation of the carrier to operate the receiver squelch. This “pilot tone” consists of a 29.997 khz signal which is mixed with the audio signal just after the compandor. The pilot tone controls the audio output muting of ...

  • Page 7

    Multi-frequency ifb transmitter rio rancho, nm 7 freq buttons (up and down) the transmitter frequency is changed by pressing the appropriate button (see note). Each push will change the frequency, up or down, in 100 khz increments, or one channel at a time. The freq buttons are enabled when the off/...

  • Page 8

    T1 lectrosonics, inc. 8 t1 rear panel xlr jack a standard xlr female jack accepts a variety of input sources depending on the setting of the mode dip switch. Xlr pin functions can be changed to suit the source depending on the positions of the individual switches. For detailed information on the set...

  • Page 9

    Multi-frequency ifb transmitter rio rancho, nm 9 1) the t1 transmitter is shipped with pin 1 of the xlr input connector tied directly to ground. If a floating input is desired, a ground lift jumper is provided. This jumper is located inside the unit on the pc board near the rear panel xlr jack. If a...

  • Page 10

    T1 lectrosonics, inc. 10 accessories ch20 power supply for ifb base transmitters with locking lzr power jacks; 110 vac input, 12 vdc regulated output; 400 ma max. 21586 dc16a pigtail power cable, lzr to strip & tin sna600 collapsible dipole antenna that adjusts over a wide frequency range. Ideal for...

  • Page 11

    Multi-frequency ifb transmitter rio rancho, nm 11 troubleshooting symptom: possible cause: display dead or blinking on and off 1) external power supply disconnected or inadequate. 2) the external dc power input is protected by an auto-reset polyfuse. Disconnect power and wait about 10 seconds for th...

  • Page 12

    T1 lectrosonics, inc. 12 frequency blocks and ranges the table below lists the factory designated frequency ranges available for the t1 ifb transmitter. Each t1 transmitter is built to cover a pre-selected range of frequencies (a “block”) as shown below. The transmitter will tune to any of 256 diffe...

  • Page 13

    Multi-frequency ifb transmitter rio rancho, nm 13 operating frequencies: block 21 537.600 - 563.100 block 25 640.000 - 665.500 block 22 563.200 - 588.700 block 26 665.600 - 691.100 block 23 588.800 - 607.900 block 27 691.200 - 716.700 614.100 - 614.300 block 28 716.800 - 742.300 block 24 614.400 - 6...

  • Page 14

    T1 lectrosonics, inc. 14 service and repair if your system malfunctions, you should attempt to correct or isolate the trouble before concluding that the equipment needs repair. Make sure you have followed the setup procedure and operating instructions. Check the interconnect- ing cables and then go ...

  • Page 15

    Multi-frequency ifb transmitter rio rancho, nm 15.

  • Page 16: Limited One Year Warranty

    September 2, 2005 581 laser road ne • rio rancho, nm 87124 usa • www.Lectrosonics.Com (505) 892-4501 • (800) 821-1121 • fax (505) 892-6243 • sales@lectrosonics.Com limited one year warranty the equipment is warranted for one year from date of purchase against defects in materials or workmanship prov...