Survey - Point of Beginning

The advanced search option lets you select from any field within the survey based on the results in the database.

The AND/OR option allows you to run a search where all fields must meet your criteria (AND) or where one of the fields out of all the fields you select has to meet your criteria (OR). (i.e. where field1=yes AND field2=yes vs where field1=yes OR field2=yes)

The keyword search allows you to find keywords you are looking for within the survey notes.

Feel free to select from one or more drop-downs for a powerful, combined search to get the results you desire. Click the Run Advanced Search button when you are ready to perform your search.

Would you like to perform an AND or an OR search?
Keyword search:

Manufacturer's phone number
Receiver tracking characteristics
Single-frequency or dual-frequency GPS?
   L1 C/A code, L1 carrier
   L1 only, codeless
   L1 only, C/A-code
   L1 codeless and L2 codeless
   L1 C/A-code and L2 codeless
   L1 C/A-code and P-code, L2 P-code
   L1 C/A-code and L2 P-code
   Other
GLONASS?
WAAS?
Max. number of satellites tracked simultaneously
Number of receiver channels
Selectable data interval for phase measurement? If yes, state range; if no, state interval.
When four satellites are tracked, does the receiver display provide:
   Satellite tracking status?
   Coordinated Universal Time (UTC)?
   Three-dimensional positions?
   Velocity?
   Dilution of precision?
   Real-time map display with linework and background
   Touch screen display?
   Coordinates in grid, local or ground values? If yes, state which.
Horizontal Accuracy (Std. Dev.)

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   Static (cm)
   RTK (cm)
Does the receiver accurately measure and output:
   Code Phase?
   Carrier Phase?
   Integrated Doppler?
   Pseudo-range data?
   Full wavelength L2 carrier-phase data when A/S is implemented?
   Cross-correlated Y2 - Y1 pseudoranges?
   Other dual-frequency technology
   Specify available observables (e.g. L1 C/A, L1 Phase, etc.)
On what medium is observed data recorded during the observations?

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   Internal memory?
   Other medium?
   If recorded in the internal memory, what medium is available to transfer to after the observations end? (serial port, IR port, USB port, removable media memory, other)
Maximum internal memory capacity (Mb)
Maximum data transfer speed from internal memory to PC (baud)
RECEIVER INTERFACE
Are the following supported on the single component of the system, which includes the Receiver (Rx), or the controller or handheld computer (C) or both (B).

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Alpha-numeric entry of data
Text warnings
Setting of receiver parameters
Receiver status
Messages formed with LEDs
Messages formed with LCDs
Can receiver be used in a ship, aircraft, or vehicle for positioning and navigation?
Can the receiver perform:
   Kinematic surveys?
   Pseudo-kinematic surveys?
   Rapid static surveys?
Can the receiver perform real-time kinematic surveys?
   If yes, does it have on-the-fly ambiguity resolution capabilities?
   Is RTK radio internal or external?
   Use of multiple RTK base stations on a single radio
Can the receiver perform real-time Differential GPS (DGPS)?
   Is the receiver capable of picking up signals from U.S. Coast Guard beacons?
   Is the receiver capable of picking up signals from the commercially available DGPS service companies?
   Time to first satellite signal lock (seconds)
   For all available satellites? (seconds)
Can the system be preprogrammed or initialized with session observing criteria at an office before going to the sites?
   If Yes, can the system be programmed with information for multiple sessions?
If the system can be preprogrammed, can alphanumeric data be input?
Does the receiver beep, or give some indication that data is being recorded?
Size: (H x W x D)
Weight: (lbs. Receiver only)
Is antenna included in the weight?