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The PC-Sig Library - Shareware for the IBM PC and Compatibles (PC-SIG)(Tenth Edition Disks 1-2804)(1991).iso
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README2.DOC
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1990-05-24
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GENERAL AVIATION FLIGHT PLAN SYSTEM - RELEASE 3.1 - ADDITIONAL INFORMATION
The file DEMOFILE.NAV as supplied by the author contains all VORs in the con-
tiguous 48 United States, plus all airports that are at the centers of TCAs,
ARSAs or TRSAs, plus some additional airports. There should be room for you to
add about 100 more navaids. The author is working on additional regional Navaid
files; write for information. Data items are taken from Airport Facility Dir-
ectories, except for magnetic variations which are taken from recent Sectional
charts.
For airports, FREQ.1 is always the CTAF or primary tower frequency, and FREQ.2
is usually the ATIS frequency. If there is no ATIS, FREQ.2 may be a Unicom
frequency. For electronic navaids, FREQ.1 is the navaid frequency and FREQ.2
is a primary COMM frequency. If FREQ.2 is 122.1 then you transmit on that fre-
quency and receive on the NAV frequency.
*** WARNING *** This data may not be current when you receive it. The author
does not provide a subscription service for Navaid data updates. It is the
responsibility of the user to make sure all data used in the Flight Plan System
is current and accurate. If you received this software from a source other than
the author, it may have been changed by other persons and could be inaccurate.