The Site Master (Figure 1-1) is a hand held SWR/RL(standing
wave ratio/return loss) and Distance-To-Fault measurement
instrument that includes a built-in synthesized signal
source. It uses a keypad to enter data and a liquid crystal
display (LCD) to provide a graphical indication of SWR or RL
over the selected frequency range. The Site Master
Sill and S331 have a built-in distance-to-fault capability.
The Site Master SI 10 and S330* as well as models Sill and
S331, allow measurement data to be converted to Fault
Location via the companion Soft-
ware Tools program. The Site Master is capable of up to two
hours of continuous operation from a fully charged internal
battery. It can also be operated from a 12.5 dc source
(which will also simultaneously charge the battery).
Built-in energy conservation features can be used to extend
battery life over an eight-hour work day.
The Site Master is designed for measuring SWR, return loss,
or cable insertion loss and locating faulty RF components in
antenna systems. The displayed trace can be scaled and/or
enhanced with settable frequency markers and/or a limit
line. A menu option provides for an audible “beep” when the
limit value is exceeded. To permit use in low-light
environments, the LCD can be back lit using a front panel key.