Tait TB7300 Installation And Operation Manual

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Tait TB7300 Installation And Operation Manual Manual pdf 58 page image

58 Maintenance TB7300 Installation and Operation Manual© Tait Limited November 20176 MaintenanceThe base station is designed to be very reliable and should require littlemaintenance. However, performing regular checks will prolong the life ofthe equipment and prevent problems from happening.It is beyond the scope of this manual to list every check that you shouldperform on your base station. The type and frequency of maintenancechecks will depend on the location and type of your system. The checks andprocedures listed below can be used as a starting point for yourmaintenance schedule.PerformanceChecks We suggest you monitor the following operational parameters using theweb interface:■ VSWR■ DC input voltage, especially on transmit■ any temperature alarms■ forward powerThese basic checks will provide an overview of how well your base stationis operating.Calibration We recommend that you calibrate the base station after three months ofoperation, and then every three years for B-band base stations. Thecalibration procedure is described in the Help (Calibrate > Calibrate >Internal reference), and requires a calibrated frequency generator - aGPS-derived frequency reference is recommended.DC Input We suggest that you periodically check that the screws on the DC inputterminals are tightened to the recommended torque of 1.3lbf·in (1.7N·m).They may work loose with thermal cycling. Also, if you are using batteryback-up, you should check the batteries regularly in accordance with themanufacturer’s recommendations.Ventilation The base station has been designed to have a front-to-back cooling airflow.We strongly recommend that you periodically check and maintain theventilation requirements described in “Equipment Ventilation” on page 40to ensure a long life and trouble-free operation for your base station. Alsocheck for a build-up of dust in and around the front panel air intakes andfan ducts.Cooling Fans The cooling fans have a long service life and have no special maintenancerequirements.