User's Manual

SECTION IV CONFIGURATION & DIAGNOSTICS
SM 7063 07/97 4-18
4.4.12 Set Transmit Power Level
The CDU normally transmits Emergency brake commands to the End Unit at 2 Watts RF power. The
CDU has the capability to transmit at higher power levels as required by the Railroad. To select the
transmit power level, type in “12” (Set Transmit Power Level) and press <Enter>. The following screen
shows the currently selected setting:
The factory default setting is typically “0” for the 2 Watt power level. The transceiver module in the
CDU supports transmissions at 4 Watts as deemed necessary by the Railroad.
NOTE
Setting and using the CDU at transmit power levels above 2 Watts may require
licensing from the FCC.
Some Railroads require the capability to transmit at power levels higher than 4 Watts (e.g., 8 Watts).
In this case, the CDU can be equipped with an optional TX Amplifier module.
To change the transmit power level setting, type in the menu item number and press <Enter>. To
return to the Main Configuration Menu, press <Esc>.