Trilithic Model One Operation Manual page 13

The RF "F" connector is on the top of the
unit (a BNC Connector Adaptor is included
in the bag).
KEY PAD
The key pad consists of the various
buttons to access the Model One's
functions. There are eleven function
buttons, two arrow buttons (up, down), the
power on/off button and three "soft
buttons" which enable you to perform
functions in the display.
"Soft" Buttons
Power
ON/OFF
Model One Operating Manual ""! TRILITHIC
10 – Model One Walkthrough
Charge Indicator
Light
11 Primary
and
Secondary
Function
Buttons
2 Arrow
Buttons