iDirect iNFINITI 3000 Installation And Commissioning Manual

Contents

iDirect iNFINITI 3000 Installation And Commissioning Manual Manual pdf 34 page image

30iDirect iNFINITI series Installation and Commissioning Guide, Release 7.0If you are implementing a mobile remote, the white fields will all be blank. You must enter thefollowing information.7.4 Perform Pulse Width Modulation (PWM) Antenna PointingNext, you must fine-tune the antenna pointing. You will attempt to lock onto the downstreamcarrier for your network, by sweeping the antenna in azimuth, looking for a value in the range of12 to 24 volts DC. Readings in this range indicate that you have successfully locked into thecorrect satellite.1. In Remote Location, enter the appropriate latitude and longitude values for yourcurrent geographic location. In mobile remotes, this can be determined by yourGPS unit.2. In Spacecraft Position, enter the appropriate longitude values for the satellitethat you are using3. In Elevation Information, enter the appropriate Offset value for your antenna.The offset for a 1.8 meter antenna is 22.6°.The offset for a 1.2 meter antenna is 17°.When all of the information is entered, iSite automatically calculates yourpolarization offset, azimuth, and elevation values.NOTEWrite these values down, or leave this screen open on yourlaptop. You will need these values later to perform the initialpointing of your antenna.Table 7-1: Signal Strength Ranges (PWM)Signal Strength Rangesvolts DC Antenna Status0 – 2: Not in pointing mode, hardware problem, or off satellite2 – 10 Detecting RF energy, but not locked on the downstream carrier12 – 24 Locked on the downstream carrierNOTE You can only get a reading of >= 12 volts when you are lockedonto the correct spacecraft or network.