User's Manual

4. Commissioning
MF0200A5C_ION-U_L_7_80-85_17EP_19P.docx Manual for ION
®
-U Page 45
5. Retain the cable connector with the
counter wrench and fasten the
coupling nut with the
torque wrench until the torque is
applied (torque wrench clicks).
For angled antenna connectors use your hand to retain the cable connector and
fasten the coupling nut with the torque wrench. Make sure only the coupling nut is
turned, not the cable connector.
figure 4-23 Antenna connection
4.2.7. Coupling probe
The coupling probe is a QMA measurement probe that allows the measurement of
the antenna output without disconnecting the antenna. The coupling is as follows:
Port Coupling dB typ.
700 MHz
45
800/850 MHz
45
1900 MHz
41
1700 MHz
41
Antenna cable
Torque wrench
Counter wrench