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Author Topic: Grey line map (real time)  (Read 6665 times)

Offline NJQA

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Re: Grey line map (real time)
« Reply #15 on: February 05, 2020, 1156 UTC »
This is something to be aware of as some propagation prediction programs are using old SSN lookup tables.  This was recently mentioned here:


Offline pjxii

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Re: Grey line map (real time)
« Reply #16 on: July 12, 2020, 2105 UTC »
Interesting. I see that it comes with 12 slides for each month of the year. Not sure it would be easy to find though.

I have two of those, the earlier monochrome and later color version. They're invaluable to me as I don't use a computer at my radio desk (I'm very old school). The early one came with an overlay for the Great Cirlce path at 40* North, but now I live at 25* N so...
They turn up on eBay from time to time. Not expensive.


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