TDS Surveying Card backsight setup question

VANCE · Post by **VANCE** » Sun Dec 02, 2012 5:08 pm

You need to zero set your instrument, the 48 will not do it for you, at least not for a topcon instrument

Jim Frame · Post by **Jim Frame** » Sun Dec 02, 2012 5:14 pm

That's the way I remember it, too.

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Stephen Johnson · Post by **Stephen Johnson** » Mon Dec 03, 2012 7:37 am

Ditto Jim & Vance.

Most if not all programs designed to operate on the 48 will not zero an instrument circle.

land butcher · Post by **land butcher** » Mon Dec 03, 2012 12:12 pm

the hp48 only reads what the edm tells it.

Ditto the 3 answers above.

E_Page · Post by **E_Page** » Thu Dec 06, 2012 7:02 pm

I was going to suggest that you turn the card sideways to make it easier to sight line more precisely at the backsight. (about the only thing my card is good for since it went kaput a while back). I guess that answer wouldn't have worked for you.