• HF conditions update

    From Matt Jurcich@1:154/120 to All on Tue Aug 11 19:36:30 2026

    Hi all,

    I've got a script that downloads the HF Conditions information from
    hamsql.com, and displays it on the screen in ANSI color... pretty basic
    but effective. (the chart is the Good, Fair, Poor chart for the bands)

    First, I'll share the script with anyone who might want it (it's in PowerShell).

    Second, if I can figure out how to send an echo message from the command
    line, does anything (moderator?) think there is any benefit to posting
    it once a day here? We do have the detailed space weather message.

    Thanks for any thoughts....

    -m
    KB0TNG
    Minneapolis, MN
    --- The Major BBS v10
    * Origin: The Noise Forest (1:154/120)
  • From Sean Dennis@1:18/200 to Matt Jurcich on Tue Aug 11 21:48:54 2026
    Hi Matt,

    First, I'll share the script with anyone who might want it (it's in PowerShell)

    You can share it in here, but perhaps a link to it at the bottom of your
    daily HF conditions post would be good also. I'd like to convert it to a
    bash script since my BBS runa under Slackware Linux.

    Second, if I can figure out how to send an echo message from the command line, does anything (moderator?) think there is any benefit to posting
    it once a day here? We do have the detailed space weather message.

    I'm the moderator and I post the space weather every three days using a
    special bash script I wrote. I don't mind having the daily HF conditions posted in here at all and thank you for asking!

    73 DE KS4TD/WSBW961,
    Sean
    HAM Moderator

    --- MBSE BBS v1.1.7.2 (Linux-x86_64)
    * Origin: Outpost BBS * Johnson City, TN (1:18/200)
  • From Alexey Matrosov@2:203/910 to Matt Jurcich on Wed Aug 12 07:15:52 2026
    Hello Matt,

    Tuesday August 11 2026 19:36, you wrote to All:

    Second, if I can figure out how to send an echo message from the
    command line, does anything (moderator?) think there is any benefit to posting it once a day here? We do have the detailed space weather message.

    You can use some tool like that one comes with the husky:

    txt2pkt -nf "Daily Reports" -xf "2:203/910" -xt "2:203/910" -t "tearline" -o "origin" -s "subj" -e "rabarber.robots" -d local-inbound-path report-file.txt

    Mvh,
    Alex.
    ---
    * Origin: Rabarber > Skelleftea > Sweden (2:203/910)
  • From Mortar M.@1:124/5016 to Matt Jurcich on Wed Aug 12 11:23:12 2026
    Re: HF conditions update
    By: Matt Jurcich to All on Tue Aug 11 2026 19:36:30

    I've got a script that downloads the HF Conditions information from hamsql.com...

    Is this URL correct? I get an "IP address could not be reached" error.

    ...any benefit to posting it once a day here?

    Is the chart global? Also, since conditions change throughout the day, it would be a good idea to post it every 12 hours.
    --- SBBSecho 3.37-Linux
    * Origin: End Of The Line BBS - endofthelinebbs.com (1:124/5016)
  • From Matt Jurcich@1:154/120 to Mortar M. on Thu Aug 13 09:15:36 2026

    Re: HF conditions update
    By: Matt Jurcich to All on Tue Aug 11 2026 19:36:30

    I've got a script that downloads the HF Conditions information from hamsql.com...

    Is this URL correct? I get an "IP address could not be reached" error.

    ...any benefit to posting it once a day here?

    Is the chart global? Also, since conditions change throughout the day, it w

    Ha, no that url is incorrect.. I've read it wrong for years I guess.
    It's https://hamqsl.com dyslexia apparently!

    The chart is global and is actually updated hourly. That too frequent
    to post though, IMHO. Twice a day could be good. Just don't want it to
    become spam to people...

    Thanks.

    -m
    --- The Major BBS v10
    * Origin: The Noise Forest (1:154/120)
  • From Matt Jurcich@1:154/120 to Sean Dennis on Thu Aug 13 09:21:18 2026

    Hi Matt,

    First, I'll share the script with anyone who might want it (it's in SD>MJ> PowerShell)

    You can share it in here, but perhaps a link to it at the bottom of your SD>daily HF conditions post would be good also. I'd like to convert it to a SD>bash script since my BBS runa under Slackware Linux.

    Second, if I can figure out how to send an echo message from the command SD>MJ> line, does anything (moderator?) think there is any benefit to posting SD>MJ> it once a day here? We do have the detailed space weather message.

    I'm the moderator and I post the space weather every three days using a SD>special bash script I wrote. I don't mind having the daily HF conditions SD>posted in here at all and thank you for asking!

    73 DE KS4TD/WSBW961,
    Sean
    HAM Moderator

    Hi Sean,

    Thanks for the info.... Someone else suggested posting more then once a
    day as condition change (and the prediction data is updated hourly) but
    hourly is too frequent IMHO. Maybe twice a day?

    The site is https://hamqsl.com and the guy who runs it is Paul N0NBH.

    My chart looks like this:

    Solar Band Conditions as of 08-13-2026 09:06 local (08-13-2026 14:06
    UTC)

    --------------------------------------
    Band Day Night
    --------------------------------------
    12m-10m Poor Poor
    30m-20m Good Good
    17m-15m Fair Fair
    80m-40m Fair Good

    Data courtesy of www.hamsql.com


    Thanks for any feedback.

    -m
    KB0TNG
    --- The Major BBS v10
    * Origin: The Noise Forest (1:154/120)
  • From Matt Jurcich@1:154/120 to Alexey Matrosov on Thu Aug 13 09:27:54 2026

    Hello Matt,

    Tuesday August 11 2026 19:36, you wrote to All:

    Second, if I can figure out how to send an echo message from the command line, does anything (moderator?) think there is any benefit to posting it once a day here? We do have the detailed space weather message.

    You can use some tool like that one comes with the husky:

    txt2pkt -nf "Daily Reports" -xf "2:203/910" -xt "2:203/910" -t "tearline" -

    Mvh,
    Alex.

    Hi!

    Ah husky, neat tool, hadn't know of it until now. Thanks for that.

    -m
    KB0TNG
    --- The Major BBS v10
    * Origin: The Noise Forest (1:154/120)
  • From Mortar M.@1:124/5016 to Matt Jurcich on Thu Aug 13 11:27:54 2026
    Re: HF conditions update
    By: Matt Jurcich to Mortar M. on Thu Aug 13 2026 09:15:36

    The chart is global and is actually updated hourly.

    I don't doubt your claim, but I don't see how that's possible as conditions change from region to region, i.e., what's "bad" in CA is might be "good" in MA, much less the rest of the world. Is the chart averaging the results?

    It's https://hamqsl.com dyslexia apparently!

    Ah. I've been there before but always through a link, so I never knew the actual URL. Yeah, lot of info there, but the site's in serious need of a face lift.
    --- SBBSecho 3.37-Linux
    * Origin: End Of The Line BBS - endofthelinebbs.com (1:124/5016)
  • From Sean Dennis@1:18/200 to Matt Jurcich on Fri Aug 14 22:50:58 2026
    Matt Jurcich wrote to Sean Dennis <=-

    Thanks for the info.... Someone else suggested posting more then once
    a day as condition change (and the prediction data is updated hourly)
    but hourly is too frequent IMHO. Maybe twice a day?

    Twice a day is fine. Even with the delay inherent in store-and-forward mail systems, that'd be accurate enough for us.

    If anyone has an issue, they can let me know.

    That's pertinent info for this echo so I'm fine with it.

    -- Sean KS4TD

    ... Can a frog jump higher than a house? Of course, a house can't jump.

    --- MultiMail/Win
    * Origin: Outpost BBS * Johnson City, TN (1:18/200)
  • From Sean Dennis@1:18/200 to Mortar M. on Fri Aug 14 23:28:46 2026
    Mortar M. wrote to Matt Jurcich <=-

    I don't doubt your claim, but I don't see how that's possible as conditions change from region to region, i.e., what's "bad" in CA is
    might be "good" in MA, much less the rest of the world. Is the chart averaging the results?

    Most likely it uses VOCAP (Voice of America Coverage Analysis Program) to figure out signal reliability.

    If you want an exact propogation signal reliability report, you can go to https://www.voacap.com/swl/ to figure that out.

    -- Sean KS4TD

    ... If at first you don't succeed, transform your data set.

    --- MultiMail/Win
    * Origin: Outpost BBS * Johnson City, TN (1:18/200)
  • From Matt Jurcich@1:154/120 to Sean Dennis on Tue Aug 18 22:46:56 2026

    Matt Jurcich wrote to Sean Dennis <=-

    Thanks for the info.... Someone else suggested posting more then once a day as condition change (and the prediction data is updated hourly) but hourly is too frequent IMHO. Maybe twice a day?

    Twice a day is fine. Even with the delay inherent in store-and-forward mail SD>systems, that'd be accurate enough for us.

    If anyone has an issue, they can let me know.

    That's pertinent info for this echo so I'm fine with it.

    -- Sean KS4TD

    ... Can a frog jump higher than a house? Of course, a house can't jump.


    Ok. I see you're posting the chart. Ok.

    I don't know about the location or other sources of info that hamqsl.com
    uses.. I'd e-mail the owner, he does respond to e-mail.

    Thanks much.

    -m
    --- The Major BBS v10
    * Origin: The Noise Forest (1:154/120)
  • From Mortar M.@1:124/5016 to Matt Jurcich on Wed Aug 19 11:21:54 2026
    Re: Re: HF conditions update
    By: Matt Jurcich to Sean Dennis on Tue Aug 18 2026 22:46:56

    I don't know about the location or other sources of info that hamqsl.com uses.. I'd e-mail the owner, he does respond to e-mail.

    That was my concern as well. There is no such thing as "global" band conditions.
    --- SBBSecho 3.37-Linux
    * Origin: End Of The Line BBS - endofthelinebbs.com (1:124/5016)
  • From Sean Dennis@1:18/200 to Mortar M. on Wed Aug 19 20:53:20 2026
    Hello Mortar,

    19 Aug 26 11:21, you wrote to Matt Jurcich:

    That was my concern as well. There is no such thing as "global" band conditions.

    I asked Gemini about your claim:

    ===
    Yes, global HF band conditions exist, but they describe planetary space weather rather than specific paths. They are derived from overarching environmental metrics--such as the Solar Flux Index (SFI), K-index, and A-index--that measure the sun's output and Earth's magnetic field on a global scale.

    - What Global Conditions Tell You

    Planetary Ionization: Numbers like the SFI show how charged the global ionosphere is, dictating the upper limit of usable frequencies worldwide.

    Geomagnetic Storms: Indices like the K-index reveal planet-wide magnetic calm or disturbance, which alters the background noise floor.General Trends: They label broad sectors (such as high, middle, or low latitudes) as "normal" or "disturbed" for a given Universal Time period.

    - Why They Aren't Local Realities

    Path-Specific MUF: The Maximum Usable Frequency changes constantly depending on the exact sunrise, sunset, and midpoint between two communicating stations.

    Local Noise: Man-made interference or local atmospheric static can make a band sound dead at your specific location even when global indices look pristine.

    Hemispheric Shifts: Seasonal D-layer absorption behaves completely differently in the Northern Hemisphere than in the Southern Hemisphere at the same moment. ===

    That's why tools like VOACAP exists to figure out HF propagation at your current QTH. What I post in here are general guidelines. Any ham that knows what they're doing knows this.

    So yes, Virginia, global HF band conditions erxist even if you think they don't.

    -- Sean KS4TD

    ... I hate peer pressure and so should you.
    --- GoldED+/LNX 1.1.5-b20260304
    * Origin: Outpost BBS * Johnson City, TN (1:18/200)