0 maintenance, Maintenance recommendations, Annual calibration – ETS-Lindgren 3147 Log Periodic Dipole Array Antenna User Manual
Page 11: Service procedures

2.0 Maintenance
Before performing any maintenance, follow the
safety information in the ETS-Lindgren
Product Information Bulletin included with your
shipment.
Maintenance of the Model 3147 Log Periodic Dipole Antenna is limited to
external components such as cables or connectors. If you have any questions
concerning maintenance, contact ETS-Lindgren Customer Service.
Maintenance Recommendations
If the Model 3147 is used outdoors, periodic removal of the antenna cable
connection and cleaning of any corrosion may be needed to maintain accuracy of
the measurements. An inspection to determine the need for cleaning should be
made at least every six months. More frequent inspection may be needed
depending on the atmosphere and the environment in which the antenna is used.
Annual Calibration
See the Product Information Bulletin included with your shipment for information
on ETS-Lindgren calibration services.
Service Procedures
For the steps to return a system or system component to ETS-Lindgren for
service, see the Product Information Bulletin included with your shipment.
Maintenance
| 11