You sound just like the lady from Scotland's Rural Survey team. I wish they would post the video back on you tube about the Plane Table Survey, most of us really liked that video.
Is this video a joke? How is the theodolite (not even unboxed) centred? Where is the bob? Legs not firmed into ground or adjusted. Not even a tribrach on board.
They focused on just looking through the hole of the transit attachment and left out some other important procedures that should not have been omitted. They should re-make the video and do a better job. And I say this with complete respect to the art of surveying.
I have a queation. How do you do radiation? say u know coordinates of point B. U fl to B set to "0". Then point to C right. Then fr to C and B. Say if u know coordinates on A n B how do u find coordinates of C
From the coordinates of A and B you can get the bearing of the line AB and you have the angle which he calculated in the final answer and from that we can get the bearing of line Ac and by knowing the length of AC using tape or something and the coordinates of A and the bearing of AC then get coordinates of C
NO NO NO! Do not "dance" with the tripod with the instrument attached!! To adjust the optical plummet onto the nail, use the tribrach footscrews! Then adjust the legs to centre the bulls-eye bubble. (It is only necessary to move 2 of the legs) Then centre the bulls-eye bubble accurately using the footscrews. Finally, move the tribrach on the head. Relevel if necessary. Cowboys...
Umm, no. Once rough leveled, you loosen the tribrack, slide the instrument back over, reverify rough level, then fine level, verify that you are still ovet, then take your backsight.
when you take your instrument out of its case, never put it on the ground. Place it directly to your tripod, secure it with the mounting bolt then close the case. It is a bad habit to place your instrument on the ground for a couple of reasons, dirt gets on the bottom of the instrument which then gets on the head of the tripod and also gets into the case after the instrument is used. And the worst, the instrument may tip over if it is uneven. imagine at total station or theodolite tipping over.
