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PF3000 GPS Wanders
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tedbear
Posted 10/6/2018 08:02 (#7028833 - in reply to #7027531)
Subject: RE: PF3000 GPS Wanders


Southern Minnesota Between Freeborn & Wells
premoj - 10/5/2018 14:25

Someone else may have to chime in on this, but you can use a different gps source (like agleader display, or FM750) and have one of those devices output NMEA GGA and VTG at 4800 baud and 1Hz (5 or 10 Hz is better, but like they said, I'm not sure if the PF3000 can handle that much data or output, meaning 5 or 10 times per second vs 1 time per second). The garmin puck antenna that you use a very basic WAAS or maybe autonomous signal that tend to wonder and weave on maps like you have, by using a better antenna/reciever (like a fm750) that has better corrections and better signal qualities it should help. I recently added this to a customer combine, but we are so wet here, that I have not been able see any data since they have not been to the field. I was hoping to be able to try and run 1, 5 and 10 hz to see what it can handle and how long his card will last.


I'm confused about your statement about "how long his card will last". It is my belief that the PF3000 will only be able to tolerate the 1 Hz setup. 1 Hz means 1 message/second where 5 Hz means 5/sec etc.

You may have the assumption that speeding up the GPS would result in information being written to the memory card more often and thus "using" up its capacity quicker. The rate of writing information to the memory card in a PF3000 is settable but is not related to the speed at which the GPS delivers its information. The choices as I recall were 1, 2, or 3 seconds. Using 1 second got more data points but used up the memory cards capacity quicker. I usually just used the 2 second setting.

The newer displays have much more internal memory and can "hold" the data points internally. They are copied to the memory card in a batch as a file and could contain all the data for an entire field.

Edited by tedbear 10/8/2018 08:23
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