Modem Setup Subscreen - ashtech ZY-12 Information Supplement

Parameter
DELTA-A
DELTA-F
DELTA-X
DELTA-Y
DELTA-Z
Use the number keys to enter values in each field. Define:
delta semi-major axis (a) or delta flattening (1/f) ellipsoid parameters
delta x, y, z translation parameters
To log the values and return to Screen 4, press [e].
You can check your selection by returning to Screen 2; the label USER is visible in
the title line. Positions output in this configuration align to the user-defined datum.

Modem Setup Subscreen

This option lets you select the modem type and the port through which data
transmit in remote mode. These functions are accessed by selecting MODEM on
Screen 4 and pressing the [e] key (Figure 3.19) and detailed in Table 3.16.
Screen Descriptions
Table 3.15. User Datum Parameters
The difference in the length of the semi-major axis between the
WGS-84 reference ellipsoid and the user-defined reference
ellipsoid.
The difference in flattening parameters (1/f × 10
WGS-84 reference ellipsoid and the user-defined ellipsoid.
The difference in the X, Y, and Z translation parameters between
the WGS-84 reference ellipsoid and the user-defined ellipsoid.
Figure 3.19. Modem Setup Subscreen
Description
4
) between the
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