I used Omega nav for flying in the North and South Polar regions in the late
70's and early 80's and I must admit on flying backwards at 140 Knots, in
the opposite hemisphere on quite a few occasions - most of these vagries
seem to conincide with Geomag acitivity and "pretty auroral lights". I would
hope that 60KHz would be less affected but knowing/seeing what happens to
signals that come in via the Poles I wouldnt bet on it! JJY on 40 and 60Khz
are strong here in the Winter, JJY often pushing our American cousins out of
the winning spot, Yep and Im sure I hear that lady saying Oh Jay Jay why?
too on these lower freqs... Omega, to the best of my knowledge, was not the
favored choice in the Polar regions...sextant with an artificial horizon and
a lot of head scratching + sharp pencil seemed to work most of the
time...not so good for those long overcast winter night flying at 12,000 ft!
Cheers
Laurence
From: "Walter Blanchard" <[email protected]>
Reply-To: [email protected]
To: <[email protected]>
Subject: LF: Re: 60kHz: JJY and WWWB visible behind MSF Date: Sat, 27 Dec
2003 22:05:31 -0000
Markus,
Congratulations on a very nice piece of observation. Since these three
stations are on the same time reference (UTC) within a few nS and the
baselines between MSF/JJY and MSF/WWVB intersect at nearly 90 degs they
could make quite a good over-the-pole navigation aid to replace Omega. The
skywave delays could be computed out (as they were for Omega).
Walter G3JKV.
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