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1989-10-20
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3KB
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55 lines
Bearing/Distance Program Operator's Information
Bearing/Distance Program BD.EXE and associated Turbo Pascal 5.5 files
have been designed to enable an amateur radio operator to quickly identify
a DX prefix location, determine the Great Circle and reciprocal or long
path bearing and distance to this location, and observe the local time at
this location. In addition, if only the Latitude and Longitude are known,
this may be appropriately entered to determine bearing and distance data.
UTC Time and Local Time/Date at your location are also furnished for a log
entry.
This program should run on all IBM compatible machines. To speed up
the program, no disk accesses are required during operation. All of the
DXCC prefixes have been included, however more prefixes may be added,
following the ELSE IF format shown in the Turbo Pascal Unit GETINFO3. In
some cases like the USSR, more exact entry of the DX prefix is required.
Printing GETINFO1, GETINFO2, and GETINFO3, should familiarize the user with
available DX prefixes. Some major US cities have also been included.
Entering K1 - K0 provides general information only.
Entering BD at the DOS prompt will load the program. Operation is
self explanatory from then on. Other than remembering that certain DX
prefixes must be entered with the numeral, i.e. UA1, and some others you'll
see in the GETINFO Units, operation is simple and fast. After entering UA1
for example, the following is displayed for Location:
UA1 European USSR : Franz Josef Land 81, -55
The information indicated after the Primary Location, European USSR, is for
Secondary Locations having the same DX Prefix. In the case shown above,
this prefix is also Franz Josef Land at the latitude and longitude shown.
In this case the user would note the latitude and longitude, entering this
information when requested by the program, to obtain bearing/distance
information. The display includes instructions to the user concerning
Daylight Savings Time and locations on the half hour. If a location has an
asterisk before the name, a half hour must be added to the Local Time
shown. If a location is on Daylight Savings Time(DST), add 1 hour to the
local time at his location. The time at your QTH is already corrected by
the program. Since one location may have several prefixes, i.e., DA-DP for
W. Germany, the first is always in the program, however only some of the
most common have been included. Hence , if you don't find one like DP,
think of the first in the series, and enter it. Again, feel free to add as
you see fit. A word of caution; the maximum number of DX Prefixes in any
one GETINFO Unit is limited, so if you get a weird compiler error AFTER
adding prefixes or cities, just set up another unit four.
Good luck, 73's, and happy DXing.
Bob Wagner
N6DUR