Tomas:
How does the MUF map predict availablity of a DX path
for 80 Meter QSOs (which was the original question),
or for 160 Meters?
Are there better tools available for realtime display
of current conditions for 160/80 DX paths?
73,
Jeff Maass K8ND
> -----Original Message-----
> From: propagation-bounces@contesting.com
> [mailto:propagation-bounces@contesting.com]On Behalf Of NW7US, Tomas
> Sent: Sunday, September 26, 2004 3:23 PM
> To: propagation
> Subject: [Propagation] Critical vs. Maximum Usable Frequency map
>
>
> On Sun, 26 Sep 2004 06:09:16 -0000, David Ackrill
> <dave.g0dja@tiscali.co.uk> wrote:
>
> > If you want the local F2 Critical frequency (the one where signals go
> > almost straight up and down, try looking at this map.
> > http://www.spacew.com/www/fof2.html
>
> Excellent map for this.
>
> Also of interest are the "live" (using real measurements) HAP maps from
> IPS:
>
> North America HAP maps:
> http://www.ips.gov.au/Main.php?CatID=6&SecID=4&SecName=North%20America&SubSecID=
> 1&SubSecName=HAP%20Charts
>
> North America Ionospheric map:
> http://www.ips.gov.au/Main.php?CatID=6&SecID=4&SecName=North%20America&SubSecID=
> 3&SubSecName=Ionospheric%20Map
>
> The best jump off point for IPS HF-related data is:
> http://www.ips.gov.au/Main.php?CatID=6
>
> These HAP maps are "Hourly Area Predictions" of communication frequencies
> based on current observed conditions in the North America ionosphere.
> Because of the variability of the ionosphere this type of prediction can
> only be made for the current hour.
>
> For paths that are more typical of "DX" (3000 km paths), there is also
> this map:
>
> http://www.spacew.com/www/realtime.html
>
> 73 de Tomas, NW7US (AARØJA/AAAØWA)
>
> : Propagation Editor for CQ, CQ VHF, and Popular Communications :
> : Quarterly Propagation Columnist for Monitoring Times Magazine :
> : Creator of live propagation center - http://prop.hfradio.org/ :
> : Member, US Army Miltary Affiliate Radio Service (MARS) AARØJA :
> : 122.93W 47.67N / Brinnon, Washington USA - CN87 - CW/SSB/DIGI :
> : Website, software, database design - http://newwebmakers.com/ :
> : Washington State Army MARS, State Army MARS Director - AAAØWA :
> : 1Øx56526, FISTS 7Ø55, FISTS NW 57, AR Lighthouse Society 144 :
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