Anritsu S820E - Measurement Menu

S820E UG PN: 10580-00343 Rev. H 3-55
Cable and Antenna Measurements 3-10 Measurement Menu
3-10 Measurement Menu
Key Sequence: Measurement
Standard
NOTE: All Standard measurements listed below apply only
to devices under test that are connected to Port 1 of the
Site Master.
Return Loss: Return Loss is used to characterize RF
components and systems. The Return Loss indicates how
well the system is matched by taking the ratio of the reflected
signal to the incident signal, and measuring the reflected
power in dB.
DTF Return Loss: The DTF measurement displays return
loss values versus distance. If the frequency measurements
fail or indicate a problem in the system, then the DTF
measurement can be used to identify and pinpoint the exact
location of the problem. The DTF measurement shows the
return loss value of all the individual components including
connector pairs and cable components.
Cable Loss: The cable loss test verifies the signal
attenuation level of the cable.
VSWR: Press the VSWR submenu key to view the
impedance match in VSWR. VSWR is a ratio of voltage
peaks to voltage valleys.
DTF VSWR: Press this submenu key to display VSWR
values versus distance. If the frequency measurements fail
or indicate a problem in the system, then the DTF
measurement can be used to identify and pinpoint the exact
location of the problem. The DTF measurement shows the
VSWR value of all the individual components including
connector pairs and cable components.
Advanced and Common: Shown on next page.
Figure 3-34. Measurement Menu
Measurement
Standard
Return Loss
St
an
da
Re
tu
rn
DTF
Return Loss
Cable Loss
VSWR
DTF VSWR
Advanced
Ad
v
a
n
c
Transmission
(Ext. Sensor)
Transmission
(2-Port)
Smith Chart
1-Port Phase
Display Format
Displa
y
Form
a
Single Dual
Active Display
Active Displ
ay
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