JD700B Series User’s Guide
751
Performing external RF power measurements
This instrument performs radio output power measurement with the use of optional external power sens
ors including JD730 series power sensors. It serves as the highly accurate RF power meter and gives wider
range of power measurement.
Connecting a cable
There are two types of
power sensors. Directional power sensors are used in in-service power
measurement. Terminating power sensors are used in out-of-service power measurement.
Table 24
External power sensor type
Part No.
Description
Frequency Range
Power Range
JD731B
Directional Power Sensor
300-3800 MHz
Average: +21.76 to +51.76 dBm
(0.15 to 150 W)
Peak: +36.02 to +56.02 dBm
(4 to 400 W)
JD732B
Terminating Power Sensor
20-3800 MHz
Average: -30 to +20 dBm
JD733A
Directional Power Sensor
150-3500 MHz
Average/Peak: +20 to +47 dBm
(0.1 to 50 W)
JD734B
Terminating Power Sensor
20-3800 MHz
Peak: -30 to +20 dBm
JD736B
Terminating Power Sensor
20-3800 MHz
Average/Peak: -30 to +20 dBm
Terminating power sensor connection
Procedure
1
Connect an external power sensor to the
USB Host
port of the JD700B series and to the RF
output port of BTS.
The JD700B series automatically detects and initializes the power sensor connected to the
instrument. Connecting an external power sensor is mandatory.
Figure 453 Terminating power sensor connection
JD785B/JD786B/JD745B/JD746B
JD788B/JD748B
Directional power sensor connection
Procedure
1
Connect an external power sensor to the
USB Host
port of the JD700B series and to the RF
output port of BTS as shown in Figure 454.
The JD700B series automatically detects and initializes the power sensor connected to the