JD780A Series Analyzers
Using Power Meter
559
Making a power measurement
Procedure
1.
After setting the parameters, read the absolute measurement value in dBm on the screen.
is an example of the measurement screen. To view a relative power, see “Reading a
2.
To view the result in mW, complete the following steps:
a.
Press the
AMP/SCALE
hard key.
b.
Press the
Units
soft key, and then select
mW
.
3.
To set a threshold and view the result with Pass/Fail indication, complete the following steps:
a.
Press the
LIMIT
hot key.
b.
Toggle the
Threshold
soft key between
On
and
Off
to enable or disable the Pass/Fail
indication.
c.
Press the
Threshold
soft key, and then enter a value.
d.
Press the
dBm
unit soft key.
e.
Toggle the
Alarm
soft key between
On
and
Off
to enable or disable alarming.
4.
Optional
. Go to
SAVE/LOAD
> Save
, and then select the save option from the choices available
for your measurement mode. See
“Using save” on page 31 for more information.
Figure 296
optical power measurement
NOTE
If the Wavelength is set to Auto, it displays
“Auto” for the modulation frequency. It it is set
to Manual, the instrument displays a detected modulation frequency.
Reading a relative power
To view a relative power in dB, you can set a reference value automatically or manually.
Procedure
1.
Press the
AMP/SCALE
hard key.
2.
Toggle the
Display
soft key and select
Relative
.
Summary of Contents for CellAdvisor JD780A Series
Page 52: ...JD780A Series Analyzers 52 Getting Started Figure 6 Example of Web remote on Chrome...
Page 254: ...JD780A Series Analyzers 254 Using LTE FDD Signal Analyzer 3 RS SINR 4 S SS RSSI 5 P SS Power...
Page 323: ...JD780A Series Analyzers Using LTE TDD Signal Analyzer 323 3 RS SINR 4 S SS RSSI 5 P SS Power...
Page 390: ...JD780A Series Analyzers 390 Using EV DO Signal Analyzer 3 Pilot 4 MAC 64 5 MAC 128...
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Page 590: ...JD780A Series Analyzers 590 Appendix Figure 306 Append keywords window...