Chapter 15
Using Cable and Antenna Analyzer
JD700B Series User’s Guide
529
Procedure
1
Connect the one end of the port extension cable to the
Cable and Antenna Analyzer
Reflection/RF Out
port of the instrument.
2
Connect the other end of the port extension cable to an antenna or feed line as illustrated in
Figure 319. Measurement result is displayed on the screen.
NOTE
After calibration, do not change the connection of the port extension cable or the
frequency setting. It may cause a measurement error.
Changing any frequency settings will automatically turn the calibration status to OFF on
the display screen, which requires re-calibration to proceed next measurement.
CAUTION
The maximum input power for the
Cable and Antenna Analyzer Reflection/RF Out
port
is +25 dBm. Do not connect this port directly to the output port of the system to prevent
degraded performance or malfunctioning.
WARNING
Do not attempt to connect the instrument to the antenna when there is a risk of lightning.
Electric shock may cause malfunction of or damage to the instrument.
Connecting a cable for cable loss (1 port) measurements
Procedure
1
Connect the one end of the cable under test to the
Cable and Antenna Analyzer Reflection/RF
Out
port of the instrument.
2
Connect the
SHORT
standard of the Cal Kit to the other end of the cable under test as illustrated
. Measurement result is displayed on the screen.
Figure 320 Connection for cable loss (1 port) measurement
Connecting a cable for 2-port vector measurements
Procedure
1
Connect the one end of the Thru test cable to the Cable and Antenna Analyzer Reflection/RF Out
port of the instrument and the other end of the cable to DUT.
2
Connect the DUT to the
Cable and Antenna Analyzer RF In
port of the instrument as illustrated
. Measurement result is displayed on the screen.