FREQ/DIST
Displays the frequency and distance menu depending on the measurement mode.
Frequency
Menu
The frequency and distance menu for cable and antenna analyzer measurements
provides for setting sweep frequency end points when
Freq
mode is selected. Se-
lected frequency values may be changed using the keypad or Up/Down arrow
key.
q
F1
— Opens the F1 parameter for data entry. This is the start value for the
frequency sweep. Press
ENTER
when data entry is complete.
q
F2
— Opens the F2 parameter for data entry. This is the stop value for the
frequency sweep. Press
ENTER
when data entry is complete.
q
Signal Standard
— Allows selection of the signal standard to be used. Select
from the available international standards (Appendix C).
Distance
Menu
Provides for setting Distance to Fault parameters when a DTF mode is selected.
Choosing
DIST
causes the soft keys, below, to be displayed and the correspond-
ing values to be shown in the message area. Selected distance values may be
changed using the keypad or Up/Down arrow key.
q
D1
— Opens the start distance (D1) parameter for data entry. This is the start
value for the distance range (D1 default = 0). Press
ENTER
when data entry
is complete.
q
D2
— Opens the end distance (D2) parameter for data entry. This is the end
value for the distance range. Press
ENTER
when data entry is complete.
q
DTF Aid
— Provides interactive help to optimize DTF set up parameters. Use
the Up/Down arrow key to select a parameter to edit. Press
ENTER
when
data entry is complete.
q
More
— Selects the Distance Sub-Menu, detailed below.
q
Loss
— Opens the Cable Loss parameter for data entry. Enter the loss per
meter (or foot) for the type of transmission line being tested. Press
ENTER
when data entry is complete. (Range is 0.5 to 5.0 dB/m, 1.524
dB/ft)
q
Prop Vel
(relative propagation velocity) — Opens the Propagation Veloc-
ity parameter for data entry. Enter the propagation velocity for the type of
transmission line being tested. Press
ENTER
when data entry is com-
plete. (Range is 0.010 to 1.000)
q
Cable
— Opens a list of cable three common coaxial folders (1000 MHz,
2000 MHz, and 2500 MHz) and one custom folder. Select either folder
and use the Up/Down arrow key and
ENTER
to make a selection. This
feature provides a rapid means of setting both cable loss and propagation
velocity. (Refer to Appendix A for a listing of common coaxial cables
showing values for Relative Propagation Velocity and Nominal Attenua-
tion in dB/m or dB/ft @ 1000 MHz, 2000 MHz and 2500 MHz.) The cus-
tom cable folder can consist of up to 49 user-defined cable parameters
uploaded via the Handheld Software Tools program.
q
Window
— Opens a menu of FFT windowing types for the DTF calcula-
tion. Scroll the menu using the Up/Down arrow key and make a selection
with the
ENTER
key. Refer to Appendix B for more details on window-
ing.
2-18
Chapter 2 Functions and Operations