Hi All

I have an older Hiper + receiver that will only track 2 satellites for reasons unkown to me, I thought I might try to re-install the firmware however Topcon does not seem to have it on their web site that I could find, has anyone else had this happen and if so did you manage to correct it ?



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Hi Al,

I also have/had old Ashtech/Sokkia receivers from 1998, some of the first dual freq units out there.  8 or 9 years ago they also quit getting more than two or three sats.  I was told by tech support that the firmware was going out of date as newer sats replaced the older ones.  It would have been several thousand dollars to put new boards in them... sooo I have an old GPS receiver on the book shelf next to the Gurley Mountain Transit...   Bottom line, You might just have your first modern survey relic.. 

Good Luck,


Thanks for your reply, I guess I will just add them to my other obsolete gps gear (Epoch 35 system ) will make a great door stop 




How long till my Topcon GR-3 becomes relic??? Sir can you have any clue.


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