Bdale Garbee and Keith Packard TELEGPS Owner's Manual
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Contents
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This document is released under the terms of the Creative Commons ShareAlike 3.0 license. 4Chapter 3. TeleGPS ApplicationThe TeleGPS application provides a graphical user interface for interacting with the Altus Metrumproduct family. TeleGPS can monitor telemetry data, configure devices and many other tasks. Theprimary interface window is for displaying data received over the telemetry link. There are additionaltasks available from the main window menu bar.3.1. Telemetry MonitoringThis is the window brought up when you start the application. If you have a TeleDongle deviceconnected to the computer, it will automatically be selected for telemetry monitoringAll telemetry data received are automatically recorded in suitable log files. The name of the filesincludes the current date and TeleGPS serial and flight numbers.The radio frequency being monitored by the TeleDongle device is displayed at the top of the window.You can configure the frequency by clicking on the frequency box and selecting the desired frequency.The TeleGPS application remembers the last frequency selected for each TeleDongle and selects thatautomatically the next time you use that device.Below the TeleDongle frequency selector, the window contains a few significant pieces of informationabout the altimeter providing the telemetry data stream:• The configured call-sign• The device serial number• The flight number. TeleGPS remembers how many times it has flown.• The Received Signal Strength Indicator value. This lets you know how strong a signal TeleDongle isreceiving. The radio inside TeleDongle operates down to about -100dBm; weaker signals may not bereceivable. The packet link uses error detection and correction techniques which prevent incorrectdata from being reported.• The age of the displayed data, in seconds since the last successfully received telemetry packet. Innormal operation this will stay in the low single digits. If the number starts counting up, then you areno longer receiving data over the radio link from the flight computer.Finally, the largest portion of the window contains a set of tabs, each of which contain some informationabout the TeleGPS board. The final table tab displays many of the raw telemetry values in one place in aspreadsheet-like format.3.1.1. MapThe Map tab shows the TeleGPS track over time on top of map data making it easy to locate the device. |
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