Technisonic Industries Limited TFM-403 Operator's Manual
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Technisonic Industries Limited TFM-403 Operator's Manual

Uhf airborne transceiver
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TFM-403
OPERATOR'S
UHF Airborne Transceiver
GUIDE
___________________________________________________________________

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Summary of Contents for Technisonic Industries Limited TFM-403

  • Page 1 TFM-403 OPERATOR’S UHF Airborne Transceiver GUIDE ___________________________________________________________________...

  • Page 2: Warranty Information

    WARRANTY INFORMATION The Model TFM-403, Transceiver is under w arranty for one year from date of purchase. Failed units caused by defective parts, or w orkmanship should be returned to: Technisonic Industries Limited Technisonic Industries Limited 250 Watline Avenue 3840 E. Robinson Road, Suite 214...

  • Page 3: Model Variation

    The TFM-403 Transceiver provides 120 operator accessible memory positions, each of w hich is capable of storing a transmit frequency, receive frequency, (in the TFM-403 s/n J0200 and up only) w ideband (25 KHz) or narrow band (12.5 Khz) channel spacing assignment, transmit frequency CTCSS tone or DPL code, receive frequency CTCSS tone or DPL code and an alphanumeric identifier f or each channel.
  • Page 4 120 memory positions w hich can each be programmed w ith a transmit and receive frequency w ith 25 or 12.5 KHz channel spacing, Tx/Rx CTCSS tones or DPL codes and a 9-character alphanumeric title. 2 guard channels w hich can each be programmed w ith a Rx frequency, CTCSS Tx tone or DPL code and a 9-character alphanumeric title.
  • Page 5 d) FUNC 7 - Can be turned on or off. When off, the main memory channel can not be dumped into one of the guard channels using function 7. e) LAST MEM - If set t o on, t he last memory channel on the display w ill be w hat comes up w hen the radio is turned on.
  • Page 6 Rx CTCSS Updating - While programming the receive CTCSS tone the receiver is updated immediately. This can help you find out w hat tone is being used on a repeater or other radios by simply scrolling through the tones until the squelch opens. Guard Jumper - Programming of the guard channels can be totally disabled by removing J15.
  • Page 7 FIGURE 1 Operator's Switches and Controls...
  • Page 8 OPERATING INSTRUCTIONS (See Figure 1) Sw itch pow er on by turning the main volume clockw ise. Depending how the radio is conf igured, either the last programmed or last displayed frequency w ill appear on the screen. The transceiver is now in normal operating mode. Adjust the audio level by adjusting the main and guard volume knobs.
  • Page 9 OPERATING INSTRUCTIONS - continued Select the desired memory by using the M.UP and M.DN buttons, or the RCL button and a three digit number follow ed by ENTER. To transmit DTMF tones, use the keyboard keys w hile holding the PTT button on the microphone.

  • Page 10: Programming Instructions

    PROGRAMMING INSTRUCTIONS To program one of the 120 memory channels in the TFM-403 (s/n’ s J200 and up): Press the FUNC key. The display w ill show the function prompt. Press the PROG key. The display w ill show the current receive frequency w ith a flashing cursor on the first digit (The first digit is alw ays a <...
  • Page 11 2.5). Once the desired condition has been selected, press ENTER. The TFM-403’ s display w ill show a " + " beside the memory channel number if scan is enabled. The display w ill now show the current memory number. Type in the 3-digit number of the memory you w ant to save to (if different from displayed one) and press ENTER.
  • Page 12 PRIORITY SCANNING, SELECTIVE MEMORY CHANNEL SCANNING AND SCAN LISTS Instead of breaking up the 120 channels into blocks f or scanning, the TFM-403 w ith H7 softw are has 5 scan lists. Any of the 120 channels can be assigned to any one of more of these 5 scan lists.

  • Page 13: Direct Frequency Entry Mode

    the scan sequence. It w ill remain on the channel until it becomes inactive. Scanning w ill resume again after five seconds of inactivity. To exit the scan mode, press the SCAN key. This w ill cause the radio to revert back to the normal operating mode. If w hile scanning, you hear a call for you: Respond to the call w ithin 5 seconds.

  • Page 14: Receive Frequency Simplex Function

    RECEIVE FREQUENCY SIMPLEX FUNCTION The receive frequency simplex function allow s you to quickly change t he transmit frequency, w hen operating on a split pair (repeater/semi-duplex mode), to the receive frequency to allow direct communications. ie/ If you are t ransmit ting on 452.000 MHz and receiving 452.555 MHz, press FUNC then UP t o t ransmit on 452.555 MHz.

  • Page 15: Led Display Variable Dimming Mode

    LED DISPLAY VARIABLE DIMMING MODE With the transceiver in normal operating mode press the UP or DN keys to increase or decrease the intensity of the LED display. Once maximum intensity of the display is acheived, the UP key no longer functions. Conversely once minimum intensity is reached, the DN key ceases to function.

  • Page 16: Programming Ctcss Tones/Dpl Codes

    PROGRAMMING CTCSS TONES/DPL CODES CTCSS tones (PL tones) or Digital DPL codes can be assigned to each memory channel. The guard receiver squelch w ill operate on noise squelch only, but guard 1 and 2 transmit tones or codes can be programmed. To program a tone/code to a memory channel: Select the desired band on the band select sw itch.
  • Page 17 PROGRAMMING CTCSS TONES/DPL CODES - continued Number Tone Number Tone Number Tone 67.0 162.2 177.3* 71.9 167.9 183.5* 74.4 173.8 189.9* 77.0 179.9 196.6* 79.7 186.2 199.5* 82.5 192.8 206.5* 85.4 203.5 210.7* 88.5 33.0* 218.1* 91.5 35.4* 225.7* 94.8 36.6* 229.1* 97.4...
  • Page 18 PROGRAMMING CTCSS TONES/DPL CODES - continued Number Tone Number Tone 136.5 63.0* 141.3 69.4* 146.2 159.8* 151.4 165.5* 156.7 171.3* Press ENTER. " TX TONE" appears on the display. Repeat step 3. Press ENTER. " G1 TONE" appears on the display. Repeat step 3. Press ENTER.
  • Page 19 PROGRAMMING CTCSS TONES/DPL CODES - continued 017* 266* 053* 122* 274* 356* 246* 446* 452* 523* 252* 454* 526* 036* 212* 255* 325* 455* 145* 462* 225* 332* 050* * indicates GE Digital Coded Squelch (DCS) Code Press ENTER. " TX DPL" appears on the display. Repeat step 8. Press ENTER.
  • Page 20 Technisonic Industries Limited 2 5 0 W atline Avenue, M ississauga, Ontario L4 Z 1 P4 Tel:(9 0 5 )89 0 -2 1 1 3 Fax:(9 0 5 )8 9 0 -5 33 8 3 8 4 0 East Robinson Road, Suite 2 1 4 , Amherst, New York 1 4 2 2 8 Tel:(71 6 )6 9 1 -0 6 6 9...

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