Forms commonly used during GNSS projects: |
Older forms: |
| SEE ALSO: airport survey forms |
is used to record all equipment, activities, and other metadata associated with a GPS observing session.
Please be very careful and thorough when filling out this form. GPS receivers and antennas should be uniquely identified by manufacturer and model names, part and serial numbers. The antenna setup and height measurements must be explicitly described, using sketches and photographs if possible. Any non-standard conditions should be noted and explained.
is used during field reconnaissance to provide new or updated descriptions for asurvey mark.
These descriptions are entered into WinDesc for bluebooking, or for existing marks can be entered on-line.
DEPRECATED. Use photos.
is used to sketch any trees, buildings, mountains, wires, or other obstructions which may interfere with the GNSS line-of-sight satellite signals. These diagrams are useful during processing to explain signal losses, multipath, or radio-interference.
To fill out or check this form, use a magnetic compass to measure bearings and an inclinometer to measure vertical angles to obstructions. Sketch the surrounding obstructions as seen from the antenna viewpoint. The diagram depicts a "fish-eye" or "bubble view" of the sky over the antenna. The edges of the circle are the horizon, and the center of the circle is zenith.
DEPRECATED. Use photos.
is used to obtain an impression of the mark stamping for positive identification of the mark occupied during a GPS observing session.
To make a rubbing, the mark should be as clean and dry as possible. Place the blank form (or other blank slip of paper) over the mark and rub over the entire disk with a pencil (a wide lead, e.g., a carpenter's pencil works best). If it is impossible to make a rubbing of the mark, or if the rubbing appears indistinct, a sketch and/or photograph can be substituted. For NGS rod marks, rub only the designation and date stamping from the rim of the aluminum logo cap.
