LOOKNEW             Since this is not a new file that you just created, reading an antenna file from the library will overwrite the existingantenna information in this file.  As a result, the antenna pattern contained in this file will be changed, which may   lead to confusion if you have previously used the current   antenna.                                                                                                                If you do NOT want to lose the current antenna in this      project file, you should not lookup a new antenna until you exit from this program, then execute it again and specify a NEW file name extent for the new antenna file.                                                                          
EDIT_V              If you want to edit or add elevation gain values for this   antenna, press the <ENTER> key.  A window will open showing the vertical angles currently defined for this antenna and  the gain on each of those angles.  You can edit the         angles and/or the gain values, as well as adding new        angles (-90 to +90) or deleting existing angles.                                                                        If angle and gain values have already been entered for this antenna, you can press <F4> to enter a value to adjust all  of the elevation angles.  For example, if you want to tilt  the entire pattern down 2ø (as with electrical beam tilt),  press <F4> and enter a value of -2.                                                                                     Note that the addition of electrical beam tilt to an actual antenna often changes the pattern gain values.  The adjustedpattern created with this program should be compared with   actual manufacturer's information concerning the addition ofelectrical bean tilt to the antenna under consideration.                                                                
EDIT_H              If you want to edit or add azimuth gain values for this     antenna, press the <ENTER> key.  A window will open showing the radial azimuths currently defined for this antenna and  the gain on each of those azimuths.  You can edit the       azimuth and/or the gain values, as well as adding new       azimuths or deleting existing azimuths.                                                                                 Note that the function to import an antenna file from the   antenna library is found in this window.                                                                                
ADD_V               This antenna currently does not include elevation pattern   information.  Under these circumstances, field strength     calculations using this antenna will not show any effects ofthe angle from the transmit antenna to the receive antenna, since all vertical angles will have the same effective      radiated power (ERP).  If you add elevation pattern         information, the ERP from the antenna for the field strengthcalculations will be determined by the angle to the receive point.                                                                                                                  
VGAIN               Enter the elevation gain values for this antenna pattern.   This program and the field strength calculation program     assume that the elevation gain pattern is the same for all  horizontal azimuths.  The vertical angles you enter should  be positive (+) for angles above the horizontal and negative(-) for angles below the horizontal.                                                                                    The elevation gain values should be entered as reductions   from the maximum.  That is, if you are entering the gain    values in dBd or dBi, the maximum gain in the vertical planeshould be 0dB, and all others the dB reduction from that    value (such as -3.0 dB).  If you are entering the gain in   relative field, the maximum should be 1.00 and the others asa fractional part (such as .500).  If you do not enter the  gain values in this manner, the program will normalize the  values you enter (to 0dB or relative field of 1.0) when you finish.                                                                                                                 
VGAIN_RED           The elevation gain values should be entered as reductions   from the maximum.  That is, if you are entering the gain    values in dBd or dBi, the maximum gain in the vertical planeshould be 0dB, and all others the dB reduction from that    value (such as -3.0 dB).  If you are entering the gain in   relative field, the maximum should be 1.00 and the others asa fractional part (such as .500).  If you do not enter the  gain values in this manner, the program will normalize the  values you enter (to 0dB or relative field of 1.0) when you finish.                                                                                                                 If you want to draw a plot of the pattern to see where a badvalue (as from a typographical error) may be located,       select the "Edit gain values" option to open the editing    window, then press <F7> to plot the pattern.                                                                            
HELP0               This program is used to enter the relative field on each    azimuth (5 degree increments) for a directional antenna     pattern which can be used with the Contour Calculation      programs.                                                                                                               The program will request a pattern description which will besaved in a JOB file and printed on the pattern tabulation   generated by this program (if requested) as well as the     output of the distance to contours program. You will then beasked for the relative field value on each of the           azimuths.  If you have previously entered a pattern for thisJOB number, the data should have been saved and the current (default) relative field value will also be displayed.                                                                  After entering the data for the azimuths you will be        asked for the relative antenna orientation.  This is an     offset azimuth value (in 5 degree increments) which will be added to the pattern azimuth values when the contours are   computed.  This allows the same pattern to be rotated to    different azimuths without re-entering the entire pattern.  This also allows the direct entry of an existing pattern foranother station, and then the use of the appropriate offset value to reorient the pattern as needed for the station     currently under study.                                                                                                  The file created is normally saved for the JOB specified.   You can also save this antenna information to the antenna   library (in the \ANTENNAS subdirectory) by pressing <F2>.                                                               
HELPE1              This file has been changed during this session, but has not been saved.  If you enter an extent, the contents of the    newly specified file (or the non-directional defaults for a new file) will be loaded, and all changes made to the       current file will be lost.                                                                                              If you wish to abandon the changes made to the current file,enter the same file extent to re-load the previous antenna  parameters.                                                                                                             
FILE_EXT            Enter the file extent for the name of the file for the      directional antenna information.  If you enter the extent ofan existing file, that file will be read, and the contents  can be changed using this program.                                                                                      If you enter an extent and no file exists for this JOB with that extent, a new file will be created.  All azimuths for  the new file will have a gain of 1.0 (non-directional). The gain values can be changed using this program.                                                                          
ANT_DESC            Enter a description of the antenna (manufacturer, design    type, etc.) that will be printed on output reports (computedcontour distances, etc.) which use this antenna.                                                                        
HELP3DBD            Enter the power gain value for the major lobe of the antennain dB above a quarter-wave dipole (dBd).                                                                                
HELP3DBI            Enter the power gain value for the major lobe of the antennain dB above an isotropic radiator (dBi).                                                                                
HELP3REL            Enter the power gain value for the major lobe of the antennaas a power multiplier.                                                                                                  
ANT_ORIENT          This parameter allows you to rotate the antenna relative to the values you enter for the gain on individual azimuths.                                                               For example, if you have the relative voltage gain values   from a manufacturer's specifications, those specifications  may show the major lobe of the antenna at zero degrees.  Youmay want to install the antenna with the major lobe on an   azimuth of 150 degrees to provide the desired coverage.                                                                 You can enter the field values directly from the            manufacturer's literature from 0 to 355 degrees.  Then enterthe azimuth offset, or rotation, in this example, 150       degrees. All plotting, tabulation, and calculations         performed with this antenna file will use the gain values   for the offset azimuths.                                                                                                
GAINUNITS           You can enter the major lobe gain and individual azimuth    gains in any of three units:                                                                                              Relative gain (REL) is the arithimetic multiplier which     indicates the relationship between the antenna input and    the effective radiated power.                                                                                           Gain above a dipole (dBd).                                                                                              Gain above isotropic (dBi).                                                                                           You can change the units at any time. The major lobe and    azimuth gains will be changed to reflect the units you      choose.                                                                                                                 
NEWFILE             When a new file is created, you must specify the number of  radial azimuths on which you want to enter gain values. The file will be created with equally spaced azimuths. For      example, if you specify 73 radials, the azimuths will be    spaced every five (5) degrees.  Radials can be added or     deleted later. The gain value on all created radials will beunity (1.0 relative field or 0 dB).                                                                                     
NORM_VAL            The RELative field values MUST be normalized to a major lobevalue of 1.000 for the directional antenna information to beused properly in the field strength calculation programs. Ifazimuth gain values entered do not include a maximum value  of 1.000 on at least one azimuth you have two options:                                                                    ù Normalize: adjust all gain values by dividing all valuesby the maximum value. The azimuth with the maximum gain willthus be changed to 1.000, and all other azimuths will be    adjusted proportionately to values less than one.                                                                         ù Edit gain values: open the edit window and enter a new  azimuth (or change an existing azimuth) to show a gain of   1.000. This will keep all other azimuths at the values      entered (assuming the values are less than one).                                                                        If you want to draw a plot of the pattern to see where a badvalue (as from a typographical error) may be located,       select the "Edit gain values" option to open the editing    window, then press <F7> to plot the pattern.                                                                            
MAJ_LOBE_MAX        The major lobe gain value entered on this screen is not the same as the maximum azimuth gain entered in the azimuth gainwindow. These two values must be the same. You have three   options:                                                                                                                  ù You can change the specified major lobe gain value to   match the maximum value of the azimuth gains.                                                                             ù You can go back to the azimuth gain window and change   the maximum value(s) to match the major lobe gain.                                                                        ù You can normalize all azimuth values to the specified   major lobe gain.  This will force the maximum azimuth gain  value to equal the specified major lobe gain, and all other azimuth gain values will be adjusted by the same number of  dB.                                                                                                                     If you want to draw a plot of the pattern to see where a badvalue (as from a typographical error) may be located,       select the "Edit gain values" option to open the editing    window, then press <F7> to plot the pattern.                                                                            
BEAMTILT            Enter the amount of MECHANICAL beam tilt for the antenna.   This can be in addition to any electrical beam tilt as shownby the elevation pattern values (i.e., if the major lobe of the elevation pattern is not in the horizontal plane at 0ø).Enter the mechanical beam tilt in degrees, with negative    values for downtilt (below the horizon).                                                                                
BEAMTILT_AZ         You must specify the azimuth direction of the antenna tilt. While electrical beam tilt is uniform all around the pattern(i.e., on all azimuths), mechanical beam tilt is a function of the azimuth direction in which the antenna is tilted. Forexample, if you specify a -3ø mechanical tilt on an azimuth of 45ø True, the mechanical tilt will be +3ø on azimuth 225ø(the "back side" of the antenna) and will be 0ø on azimuths 135ø and 315ø (the sides of the antenna, 90ø from the tilt  direction.)                                                                                                             
EL_ANGLE_ADJ        You can adjust all of the elevation angles for the vertical plane pattern for this antenna.  Enter the value you want toadd to the angles (+ to raise the pattern, - to lower the   pattern).  The value you enter will be added to all of the  elevation angles for this pattern.  The gain values on each angle will not be changed.                                                                                              Note that the addition of electrical beam tilt to an actual antenna often changes the pattern gain values.  The adjustedpattern created with this program should be compared with   actual manufacturer's information concerning the addition ofelectrical bean tilt to the antenna under consideration.                                                                
