HELPSCALE           There are three methods of selecting the automatic scaling  for the profile plots. (After the program has automatically scaled each plot, you will have the option of manually      changing the horizontal and/or vertical scaling.)                                                                       Individual radials - You can scale each radial profile for  the "best fit" in the plotting area. Each plot will be      scaled individually for the horizontal and vertical scales, and the scaling for each radial will probably be different  from other radials plotted during this session.                                                                         Selected radials - This program allows you to select        particular radials to plot during this session. You can     scale all the selected radials to the same scale. This      option facilitates comparison of several radials since the  scales will be the same. (Note that if you only select one  radial to plot, this scaling option is the same as the      "Individual" scale option described above.)                                                                             All radials - This option sets the scale for each of the    radials plotted during this session based on ALL of the     radials in the file, even those that are not being plotted.                                                             
HELPCURVED          In order to depict the effects of earth curvature on the    profile plot, part of the plot must be adjusted. You can    either shift the topographic elevation values (representing the surface of the earth) up, or you can shift the line of  sight and Fresnel zone values down to indicate the reduced  clearance.                                                                                                              If you choose to shift the line of sight and Fresnel zone   plots down, you will have the option of showing these plots for multiple earth curvature zone values on a single        profile.                                                                                                                If you choose to shift the topo data up, you can plot curvedlines to indicate the earth curvature and the amount the    profile has been shifted.                                                                                               Select the method of showing the effective earth curvature  by adjusting either the "Topo elevation" or the "Line of    sight" values.                                                                                                          
HELPCRVK            Enter the value of the effective earth curvature correction to correct for the atmospheric effects on radio propagation.For example, a typical value of "4/3 earth curvature" shouldbe entered as 1.333 for the curvature correction.                                                                       If you want to ignore atmospheric "bending" effects, enter avalue of 1.0 for the curvature correction.                                                                              If you want to plot a "flat earth" plot, ignoring both      atmospheric effects and actual earth curvature, enter a     value of 0.0 for the curvature correction.                                                                              Note that a "flat earth" plot is not the same as an earth   curvature correction of 1.  If "flat earth" is specified, NOearth curvature correction will be included.  This feature  should only be used for specialized applications, since     ignoring earth curvature effects may result in erroneous    conclusions for line of sight and Fresnel zone clearance.                                                               
HELPCRVLINES        You can draw curved lines on the profile to indicate the    earth curvature. A single line is always drawn at the bottomof the plot, but you can also draw several other lines      (depending on the vertical scaling of the plot) as referencelines to indicate the effective earth curvature. If you wantto draw these additional lines, enter "Y".                                                                              
HELPDEVICE          The profile plot can be directed to the screen (CRT), to    serial (COMx) or parallel (LPTx) ports, or to a disk file   (FILE).                                                                                                                 The output set to serial or parallel ports can be formatted for Hewlett Packard Graphics Language (HPGL) or a nine-pin  Epson graphics compatible dot matrix printer (LPRN).                                                                    You can change the output device and/or format for this     session but the chage will not be saved when you exit from  the menu back to DOS. If you want to change and save the newsetting, go to the system configuration screen from any     menu.                                                                                                                   
