Instruction Manual

2-12
2.8 USING MAINTENANCE COMMANDS (Level 3)
The Maintenance Command Level is available to allow configuration and testing of the radio in a bench test
environment. This command level may be disabled by removing the jumper Jn on the MCU board.
NOTE: this command level should NOT BE ENABLED when the radio is installed in the airframe.
This command level is for bench operation only and as such does not preserve the Normal Operating display
characteristics, that is: the Main and Guard displays are replaced by suitable command prompt information.
1 – Channel: Select Power-On Channel
This command toggles through the available power-on channel defaults. This allows selection of which channel
will be selected when the unit is turned on. The available choices are: the last used channel or the last
programmed channel.
The default is: last used channel.
2 – PC upload
Upload data from the radio to a PC. The unit must be connected to a PC running Windows 95, 98, or NT 4.0
and the TiL Radio Communications Software package.
3 – not currently used - reserved
4 – Fast Guard Program: Enable/Disable
This command allows the maintenance personnel to Enable or Disable the Fast Guard Program capability
(Level 2 command 4).
The default selection is: DISABLED.
5 – Scan Operation: Enable/Disable
This command allows the maintenance personnel to Enable or Disable the Scan function (Level 2, command
5). When Enabled, the Scan function operates normally, when Disabled, the Scan function cannot be started.
The default selection is: ENABLED.
6 – PTT Timer: Set Time
The PTT timer duration may be set using this command: select 0 – 9, this number is multiplied by 10 seconds
to yield a timer duration between 0 and 90 seconds.
Note that selecting 0 effectively disables the radio from transmitting.
‘ENTER’ – accepts this entry and returns.
‘ESC’ - abandons the entry and returns.
7 – not currently used - reserved
8 – PC download
Download channel data from a PC to radio. The unit must be connected to a PC running Windows 95, 98 or NT
4.0 and the TiL Radio Communications Software package.
2.8 USING MAINTENANCE COMMANDS (Level 3) - continued