If you wish to collect another profile with the same settings, you can click NEXT FILE. The SIR 3000
will ask you if you want to save the data. The system is in a paused state, so with that dialog open, move
the system to the beginning of the next profile line and then click Right arrow to save. The SIR 3000 will
save the data and then begin collecting another profile.
Follow these instructions if you want to build a 3D area out of multiple individual survey profiles. You
will save each profile as a different file and create the 3D project in RADAN’s 3D QuickDraw module.
This is an alternative to the Quick3D Data Collection mode discussed in section 3.5.
Follow all the above steps for 2D in order to set your SIR 3000 to local conditions and antenna choice.
After you have set the gains so that you do not clip, set the POSITION and GAIN under the Collect menu
to MANUAL. This will ensure that you do not accidentally auto-gain or auto-position over a different
area while collecting. Gaining over a different area will produce data that is ‘mosaiced.’ Gain differences
will mask features and create edge-effects.
You must lay out your survey grid so that you can cross your targets with at least 3 profiles. Three
profiles will allow you to tell the difference between a point target and a linear target. For example, if you
are looking for graves 2 meters in length, your survey profiles should be spaced no more than 0.5 m apart,
and try to orient your survey grid so that you cross the graves perpendicular to their long axis in order to
have the greatest possibility of hitting them.
In order for your data to be properly positioned in RADAN 5.0 (or higher), you must be able to tell the
software your survey grid origin, line direction, and line orientation. You may begin your survey in any
corner of the grid and survey either in one direction, or zig-zig back and forth.
Collect the data. Collect each survey profile as a separate file. Do not reset the gains or do anything to
cause the system to re-initialize the gains. If you accidentally reset the gains, either reinitialize the system
over the area that you originally set the gains on, or manually enter the gain values you have used
previously. It is best to set the gain to manual before beginning a 3D survey. That way, if you need to
change batteries in the middle of a grid, you will not cause the system to auto-gain. Be sure to keep
accurate notes showing the location of each file in relation to other files and immovable objects. You will
assemble the 3D project in RADAN and 3D QuickDraw after downloading the data to a PC.
