A.H. Systems SAS-585 Bedieningshandleiding - Pagina 12

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A.H. Systems SAS-585 Standard Gain Horn Antenna

MAINTENANCE

Proper antenna maintenance should include:

•

Visual inspection of RF connectors

•

Check for loose or missing hardware

•

Check for corrosion near the joints

At least once a month it is a good idea to wipe down the antenna with a damp rag.

To ensure reliable and repeatable long-term performance, annual re-calibration of

your antennas, preamplifiers and current probes by A.H. Systems experienced

technicians is recommended. Our staff can calibrate almost any type or brand of

antenna.

It is always up to the user to determine the appropriate interval for calibration

certification based on the requirements of the end user's specific test/application.

The calibration of EMC antennas is important for those conforming to compatibility

standard. Radiated emissions testing for electromagnetic compatibility (EMC)

requires the measurement of electric field (E-field) strength, which is compared

with a limit level. The output voltage of an antenna is converted to E-field strength

via its antenna factor, the measurement of which must include the uncertainty

components related to that particular antenna, taking into consideration the

environment in which the antenna is to be used for the testing. Most standards will

specify the appropriate interval for re-calibration of your EMC antenna.

In some cases, these antennas are used for a manufacturer's pre-compliance

testing, field monitoring, surveillance and/or other applications where the exact

field intensity of the received signal is not of importance. For those customers a

yearly re-calibration is not necessary, however it is recommended that an interval

for maintenance be performed.

For more information about our calibration services or to place an order for

antenna calibration visit our website at

or call 1(818) 998-0223.

REV A

http://www.AHSystems.com