TECHNISONIC INDUSTRIES LIMITED
www.til.ca
TDFM-7300 Installation & Operating Instructions
TiL 08RE389 Rev A Issue 4
2-6
2.12 ESW(0) KEY (Ergo Switch Key)
The ESW key provides the function of the concentric or ‘ergo’ switch on the portable. The
switch has two conditions which are represented by ‘O’ and ‘
∅
’. Pressing the ESW key
toggles the condition back and forth. The condition is displayed at the right hand side of the
display line, second character from the right. The ergo switch condition is saved when the
unit is turned off. There are separate conditions for each band installed. The ESW key can
be programmed with the CPS™ to a variety of functions such as low power, scan and
secure or encrypted mode.
2.13 TSW(*) KEY (Toggle Switch Key)
The TSW key provides the function of the toggle switch on the portable. The switch has
three conditions which are represented by ‘A’, ‘B’ and ‘C’. Pressing the TSW key toggles
the condition A,B,C,A,B, etc. The condition is displayed at the far right hand side of the
display line, last character on the right. The toggle switch condition is saved when the unit
is turned off. There are separate conditions for each band installed. The TSW key can be
programmed with the CPS™ to a variety of functions such as low power, scan, zone select,
or pl disabled mode.
2.14 DISPLAY
The transceiver has a 6-line, 144-character LED display. The top 4 lines display the zone
name, channel name, condition symbols (scan, direct, call, secure, monitor, etc) and switch
settings for each band. An LED on the left side of each band indicates a receive condition
while an LED on the right side of each line indicates transmit. A solid arrow on the first
character indicates which band is selected. Line 5 displays information for the analog band
including channel name, frequency, scan, narrow band, and tone. The sixth line displays the
menu items associated with the band selected and the mode of the knob.
2.15 GENERAL OPERATION
Switch on the transceiver as described in 2.3. Select the desired band by pressing the
BAND key. Select the TDFM-7300 on the aircraft audio panel. Press the knob again so that
CHAN shows up on the bottom right of the display. Rotate the knob until the desired
channel or talk group is selected. Press the knob until VOL is again shown on the display.
You can adjust the volume by waiting until a signal is received or by pressing F1 (factory
programmed for monitor function) and adjusting the rotary knob. The radio is ready to use.
If the radio is installed in separate mode, remember that the band selected by pressing the
BAND key is what menu is displayed on the screen but the band selected by the audio panel
is band that you are actually transmitting and receiving on. To use the DTMF keypad while
transmitting, the band you are using must be selected on the display.
