Table of Contents
Advertisement
Chapter 11 Using EV-DO Signal Analyzer
Figure 167 Indirect connection
JD785B/JD745B
CAUTION
The maximum power for the Spectrum Analyzer RF In port is +25 dBm (0.316 W) for
JD780B series and +20 dBm (0.1 W) for JD740B series. If the level of the input signal to
be measured is greater than this, 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 JD700B
series.
2
Connect a GPS antenna to the GPS port of the JD700B series.
Figure 168 OTA connection
JD785B/JD745B
CAUTION
If the input signal level to be measured is less than 0 dBm, set 0 dB attenuation or turn on
the preamp to have better dynamic range for the OTA testing.
334
JD700B Series User's Guide
JD788B/JD748B
JD788B/JD748B
Advertisement
Table of Contents
