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Author Topic: Grey line map (real time)  (Read 875 times)

Offline IZS4

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Grey line map (real time)
« on: January 16, 2020, 1909 UTC »
I thought I may have ask about this once, but I couldn't find a previous post. What are you all using when it comes to real time Grey line maps? I thought there might be a Black Cat Systems program, but I didn't see one listed. Thanks
Listening on an Icom-718 with a 135' OCF dipole or a RSP2.  Grundig G3 and MLA-30 when portable. When QRP I use a Hendricks PFR-3 I built. Coverage is 20,30 and 40 meters.

Offline jFarley

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Re: Grey line map (real time)
« Reply #1 on: January 16, 2020, 1920 UTC »
https://www.universal-radio.com/catalog/misc/0059.html

It's old school and discontinued, but emits no EMI, requires no batteries, and adds no clutter to the monitor display.
Joe Farley, Near Chicago
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Offline IZS4

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Re: Grey line map (real time)
« Reply #2 on: January 16, 2020, 1929 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.
Listening on an Icom-718 with a 135' OCF dipole or a RSP2.  Grundig G3 and MLA-30 when portable. When QRP I use a Hendricks PFR-3 I built. Coverage is 20,30 and 40 meters.

Offline JCMaxwell

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Re: Grey line map (real time)
« Reply #3 on: January 16, 2020, 1929 UTC »
RSPdx, FDM-S2, IC-R30, BC125AT <- W6LVP

NC USA

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Offline Josh

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Re: Grey line map (real time)
« Reply #4 on: January 16, 2020, 1935 UTC »
We do not encourage any radio operations contrary to regulations.

Offline ChrisSmolinski

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Re: Grey line map (real time)
« Reply #5 on: January 16, 2020, 1940 UTC »
I thought I may have ask about this once, but I couldn't find a previous post. What are you all using when it comes to real time Grey line maps? I thought there might be a Black Cat Systems program, but I didn't see one listed. Thanks

Yes, my DX ToolBox has a Grey Line map, as well as about 157 other maps  ;D

https://www.blackcatsystems.com/software/ham-shortwave-radio-propagation-software.html
Chris Smolinski
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Offline IZS4

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Re: Grey line map (real time)
« Reply #6 on: January 16, 2020, 1948 UTC »
Josh, The Black Goat skin model is nice, but I've decided on the Veneer Hickory model at $2950.00. And to think I didn't even know if I was going to be able to find something 'Decent' in my price range!
Listening on an Icom-718 with a 135' OCF dipole or a RSP2.  Grundig G3 and MLA-30 when portable. When QRP I use a Hendricks PFR-3 I built. Coverage is 20,30 and 40 meters.

Offline BoomboxDX

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Re: Grey line map (real time)
« Reply #7 on: January 21, 2020, 0234 UTC »
I use one of the online ones. A solar propagation site has one that works.

http://www.spacew.com/www/realtime.php
An AM radio Boombox DXer.
+ GE SRIII, PR-D5 & TRF on MW.
The usual Realistic culprits on SW (and a Panasonic).

Offline NJQA

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Re: Grey line map (real time)
« Reply #8 on: January 21, 2020, 1056 UTC »

I use one of the online ones. A solar propagation site has one that works.

http://www.spacew.com/www/realtime.php

While the grayline may be correct, donít be fooled by the rest of the data at the map link above.  It has been a long time since we have seen a SSN of 86.

Offline ThaDood

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Re: Grey line map (real time)
« Reply #9 on: January 21, 2020, 1735 UTC »
I use the one on DX Maps,     http://www.dxmaps.com/spots/mapg.php?Lan=E&Frec=50&ML=M&Map=W2LN&HF=N&DXC=ING2&GL=S
But, that just shows Grey Line for present day. Still, I've used it for 40M for USA East Coast and Aussi Grey Lining in April on 40M.
I can't decide upon what's worst, young and stupid, or old and chemically dumbed down.

Offline Traveling Wave

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Re: Grey line map (real time)
« Reply #10 on: January 23, 2020, 0144 UTC »
Not the best but PSK reporter is useful...https://pskreporter.info/pskmap.html
« Last Edit: January 23, 2020, 0148 UTC by Traveling Wave »
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Offline IZS4

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Re: Grey line map (real time)
« Reply #11 on: January 23, 2020, 0213 UTC »
Thanks for all the feedback.
Listening on an Icom-718 with a 135' OCF dipole or a RSP2.  Grundig G3 and MLA-30 when portable. When QRP I use a Hendricks PFR-3 I built. Coverage is 20,30 and 40 meters.

Offline BoomboxDX

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Re: Grey line map (real time)
« Reply #12 on: February 04, 2020, 0423 UTC »

I use one of the online ones. A solar propagation site has one that works.

http://www.spacew.com/www/realtime.php

While the grayline may be correct, donít be fooled by the rest of the data at the map link above.  It has been a long time since we have seen a SSN of 86.

"SSN"? I don't even see a reference to an SSN (whatever that is) on the page anywhere. It has the grey line, radio auroral zones, and MUFs delineated and mentioned, and that's about it.

And I've found the grey line useful, as well as the auroral radio zone demarcation (the green lines at the top of the map). And -- for the most part -- I've found them accurate enough for SWLing.
An AM radio Boombox DXer.
+ GE SRIII, PR-D5 & TRF on MW.
The usual Realistic culprits on SW (and a Panasonic).

Offline NJQA

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Re: Grey line map (real time)
« Reply #13 on: February 04, 2020, 1100 UTC »

I use one of the online ones. A solar propagation site has one that works.

http://www.spacew.com/www/realtime.php

While the grayline may be correct, donít be fooled by the rest of the data at the map link above.  It has been a long time since we have seen a SSN of 86.

"SSN"? I don't even see a reference to an SSN (whatever that is) on the page anywhere. It has the grey line, radio auroral zones, and MUFs delineated and mentioned, and that's about it.


If you look at the graphic, there is a black bar at the bottom where they show the Smoothed Sunspot Number (SSN), which is used to calculate the MUF.

The true current value is on the order of ď5Ē or so.  You can tell that they are using the wrong number because the MUF values the graphic has are unreasonably high.  A SSN value of 86 would have been reasonable 5 years ago - not today.

You can find better numbers for SSN here:

https://www.sws.bom.gov.au/Solar/1/6


« Last Edit: February 04, 2020, 1109 UTC by NJQA »

Offline BoomboxDX

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Re: Grey line map (real time)
« Reply #14 on: February 05, 2020, 0906 UTC »
^^^^^ Fair enough, thanks for the explanation.
An AM radio Boombox DXer.
+ GE SRIII, PR-D5 & TRF on MW.
The usual Realistic culprits on SW (and a Panasonic).