HFU HF Underground

General Category => General Radio Discussion => Topic started by: ChrisSmolinski on November 29, 2015, 1406 UTC

Title: HFU Propagation Data and Tools
Post by: ChrisSmolinski on November 29, 2015, 1406 UTC

Something experimental I am working on: http://www.hfunderground.com/propagation/

Midway down the page is a skip zone calculator.

Title: Re: HFU Propagation Data and Tools
Post by: Skipmuck on November 29, 2015, 1501 UTC

This is absolutely awesome to have all this on one easy to access page! I'm used to checking 3 different sites just to get this info, so this is greatly appreciated...thanks Chris!

Title: Re: HFU Propagation Data and Tools
Post by: ByteBORG on November 29, 2015, 1622 UTC

Yes Chris. I echo the sentiments of Skipmuck above.
A real time saver.
Thanks for the new tool.

Title: Re: HFU Propagation Data and Tools
Post by: jFarley on November 29, 2015, 1924 UTC

Great work, Chris, and extremely useful.

The fact that you have included 7 day tracking for K should be immensely helpful in predicting when there might be good props from the higher latitudes at LF; I have only been using the 3 day plot.

Low Kp is necessary for good props at LF.  Low AND steady low Kp for a couple of days seems to really help in props from the higher latitudes.  My best logging nights for high latitude Canadians were on 24-25 November, and this really jumps out in the 7 day K and 30 day A plots, and least while these are current...

Thanks!

Title: Re: HFU Propagation Data and Tools
Post by: JoeFLIPS on November 29, 2015, 2154 UTC

Very helpful Chris,thanks!

Title: Re: HFU Propagation Data and Tools
Post by: John Poet on December 01, 2015, 1637 UTC

Very nice!

Even an foF2 plot for Alpena, Michigan...

Just browsing those tables, the MUF seems to drop further, the farther north you are (at least currently)...

Title: Re: HFU Propagation Data and Tools
Post by: jFarley on December 09, 2015, 2322 UTC

Lately, it's really incredible how quickly signals disappear as the foF2 drops.

A few months ago, there seemed to be slower gentler crashes, and it was not unusual to see some form of recovery to a degree at a later time.

It's been "now you hear me, now you don't", and that's it.

Title: Re: HFU Propagation Data and Tools
Post by: ChrisSmolinski on January 07, 2016, 0042 UTC

I spiffed up the Propagation Data and Tools page: http://www.hfunderground.com/propagation/

I organized things a little better (I hope) and added graphs of DST (thanks to jFarley for mentioning this).

Title: Re: HFU Propagation Data and Tools
Post by: ka1iic on January 07, 2016, 1607 UTC

Wow! Looking good Chris and thanks...

I really never got into using such things but you have peaked my interest and seeing where we have no sunspots that want to help us these days, with weak signals being the call of the day I guess it is about time for me to learn.

Thanks again Chris...