TECHNISONIC INDUSTRIES LIMITED
TDAM-1000 Installation and Operating Instructions
TiL 15RE532 rev. C
8
3.3.2 SQUELCH BUTTON
The squelch function mutes the receiver when no signal is present so the operator does not listen
to continuous receiver noise. When the knob is in squelch mode, it adjusts the muting threshold
from fully open to a level where only a strong signal can be heard. Pressing the squelch button
will temporarily open the squelch for as long as the button is pressed. When released, the knob is
put into squelch mode for 3 seconds with the squelch level shown on the bottom line of the
display.
3.3.3 LED DISPLAY
The display is a 2 line 16 character green LED type. During normal operation the frequency,
channel name and/or channel number may be displayed depending on settings in the
configuration menu. The display is also used during programming and menu functions. There are
two LED indicators on the right of the display for transmit and receive (squelch open).
3.3.4 KEYPAD
A numeric keypad is provided to allow quick entry of frequencies or program channels.
3.3.5 CHANNEL UP/DOWN KEYS
These keys are used to select the desired channel.
3.3.6 USB CONNECTOR
The USB connector can be used to upload or download a channel list, program the radio
configuration or update the radio firmware.
3.3.7 MIC AND HEADSET JACKS
The supplied hand mic is plugged into the RJ-45 type jack. Headphones if desired can be
plugged into the headset jack. The internal speaker and external speaker output can be disabled
(default) when the headset jack is used depending on the settings in the configuration menu.
3.4
NORMAL OPERATION
Note: The TDAM-1000 transceiver can be configured to operate in one of two modes:
1. Frequency agile mode – Any frequency from 117.975 to 138.000 MHz can be selected or
programmed into any of the 100 available channels.
2. Fixed mode – Only frequencies programmed into channels can be used.
The operating mode can be set in the configuration menu. The following instructions assume
frequency agile mode. Those marked with an asterisk (*) will not be available in fixed mode.
3.4.1 ENTERING A FREQUENCY*
The TDAM-1000 supports both 25 kHz and 8.33 kHz channel spacing. The channel spacing used
is determined by the frequency entered. See the ICAO frequency chart in table x.x.
To enter a new frequency, type in the frequency (up to 6 digits) via the keypad and press enter. If
enter is not pressed within 3 seconds or the mic is keyed, the radio will revert back to the
previous frequency. For example, to enter 128.75 press:
The new frequency is ready to use. The new frequency is not saved in a channel but will remain
active until another frequency or channel is selected.
