TECHNISONIC INDUSTRIES LIMITED
www.til.ca
TFM-500 Installation & Operating Instructions
TiL 98RE243 Rev. N/C Issue 12
2-7
2.10
LED DISPLAY VARIABLE DIMMING MODE
1. To increase or decrease the intensity of the LED display, press the
UP
or
DN
keys with the
transceiver in normal operating mode.
2. Once maximum intensity of the display is achieved, the
UP
key no longer functions.
Conversely, once minimum intensity is reached, the
DN
key ceases to function.
2.11
90-SECOND TRANSMITTER TIMEOUT FEATURE
A selectable 90-second transmitter time out feature is provided to prevent accidental continuous
transmission in the event of a faulty PTT switch. With this feature enabled, the transceiver will
stop transmitting after the PTT is engaged continuously for 90 seconds. To reset the timer …
release the PTT switch, then re-engage the PTT switch again.
Press the
FUNC
then the
M.UP
key. Use the
M.UP
and
M.DN
keys to select 90 SEC, which
enables the feature, or NONE which disables it.
2.12
QUICK GUARD PROGRAMMING FEATURE
A quick download of any of the 200 VHF memory positions into either of the guard memory
positions can be accomplished. Select the memory position whose contents you desire to
download to a guard memory. Select either GD1 or GD2 memory channel as desired. Press
FUNC
then 7. The guard memory channel will now contain all the same information as the
selected memory position. This feature is disabled when the FUNC 7 mode is turned off in the
configuration menu.
2.13
PROGRAMMING CTCSS TONES/DPL CODES
CTCSS tones (PL tones) or Digital DPL codes can be assigned to each memory channel. The
guard receiver squelch will 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:
1. Select the desired band on the band select switch.
2. Use the
M.UP
and
M.DN
keys to select the memory channel that you want to assign a CTCSS
tone or DPL code.
3. Press the
FUNC
key then the
TONE
key. The display will show "RX TONE:" and the current
tone number, as well as the tone frequency in Hz.
4. Use the
M.UP
and
M.DN
keys to select the tone number you require.