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Topcon GR-3 SD Card Problem
I HAVE A TOPCON GR-3 2 UNIT SET. I HAVE NOTICED WHEN I COLLECT A STATIC BASE POINT WITH MY BASE UNIT, SOMETIMES I HAVE TROUBLE GETTING THE FILE FROM THE SD CARD. I KNOW THAT THIS UNIT IS OLDER AND WAS DESIGNED TO USE A SD-CARD OF 1GB OR LESS, LIKE 512MB OR 256MB. THOSE CARDS ARE HARD TO FIND. BUT RESENTLY I PURCHASED A MICRO SD CARD SD CARD HOLDER, WITH A 2.0 USB READER.
HAS ANYONE HAD THIS PROBLEM WITH SD CARDS LIKE ME.
THANKS
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7 Replies
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Sounds like it is working as designed. When collecting static data to an SD card from the Topcon GR-3, the format is NOT Windows compatible. When you place the SD card in your Windows machine, you will be prompted to format the card. They fixed this in the GR-5 and Hiper V.
You can only access the SD card with Topcon software such as Magnet Office or TRU.
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Yes
Try TRU to retrieve the files
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You may also try an old version of Topcon Link.
When you install link it would add a new drive icon to your explorer specific to the Topcon SD card.
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I added a serial port to the back of my computer and download using PC_CDU, but I know TRU works also. I added the serial port to the back of my computer for something like $10. I’m running HiperII’s.
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We have an old set of GR3s, don’t use very often.
I use the USB download cable with PC-CDU to download them. I think there is a driver for the USB cable.
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The USB transfer is about 100 time faster than the serial transfer in my experience
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It is really slow through the serial port, I agree, but it does work and I’m not using it but a couple times a year for an OPUS check.
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