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JD780A Series Analyzers
Figure 78
Direct connection
JD785A/JD786A
Indirect connection
Procedure
1.
Connect the Spectrum Analyzer RF In port of the JD780A series and the monitor (test) port of
BTS.
Figure 79
Indirect connection
JD785A/JD786A
CAUTION
The maximum power for the Spectrum Analyzer RF In port is +25 dBm (0.316 W). If the
input signal level to be measured is greater than +25 dBm, use a High Power
Attenuator to prevent damage when you directly connect the signal to the instrument or
connect the signal from the coupling port of a directional coupler.
Over the air (OTA)
Procedure
1.
Connect an Omni/directional RF antenna to the Spectrum Analyzer RF In port of the JD780A
series.
2.
Connect a GPS antenna to the GPS port of the JD780A series.
196
Using LTE - FDD Signal Analyzer
JD788A
JD788A
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