LHS Episode #249: The Weekender XVI

Hello and welcome to the 249th installment of Linux in the Ham Shack. You've found our Weekender edition. In this episode, we discuss upcoming amateur radio events and special event stations active over the next couple of weeks. We also touch on Open Source conferences, including the venerable Ohio Linux Fest, as well as give you distros to try, challenges to exercise your brain and a bit of hedonism to calm it back down again. Thank you for listening.

73 de The LHS Crew


Russ Woodman, K5TUX, co-hosts the Linux in the Ham Shack podcast which is available for download in both MP3 and OGG audio format. Contact him at [email protected].

CLE236 Results

courtesy: https://sdo.gsfc.nasa.gov/



It seems that for the CLE236 listeners in western North America, my worst fears came true. The week preceding last weekend's listening event had seen great MF propagation and quiet geomagnetic conditions.




On Friday evening, shortly after the start, a geomagnetic storm commenced, with K-levels reaching 5-7 at various stations ... pretty much sounding the death knell once again. It seems more than coincidental that almost every CLE in the past few years has seen horrific geomagnetic conditions in lock-step with our scheduled monthly events!

Since there were no active regions on the Sun at the time, I suspect, as mentioned in my last blog, that we were victimized by a sudden spurt from the same coronal hole that whacked us last month, as it lined-up once again on its monthly reappearance. Arriving on Friday evening as sunset approached, the effects seemed to spare the rest of North America (and Europe), as western listeners were the only ones reporting poor propagation. As well, lightning noise, often abating by this time of the year, created havoc for many listeners ... even those with good propagation.

I can only hope that next month's event will see a major improvement in noise levels as well as in propagation quality. Hopefully, that pesky coronal hole will have closed itself by then!

On top of the above mentioned challenges, CLE236's frequency range was smack on top of my local pest, AP-378, whose antenna is less than one mile from my own antennas. Having an S9 +60db signal in the middle of the narrow CLE range does make for challenging listening. My 10' x 20' loop knocked AP's signal down about 25db, allowing me to hear the following signals, some only barely.


22 05:00  371     YK         Yakima, WA, USA
22 07:00  371     GW        Kuujjuarapik, QC, CAN
22 10:00  372     ZPA       Prince Albert, SK, CAN
22 06:00  372    YCO       Coppermine, NU, CAN
22 08:00  373    MF         Table Rock, OR, USA
22 11:00  374     EX          Kelowna, BC, CAN
23 11:30  374     EE          Forada, MN, USA
22 11:00  375     FS          Fort Simpson, NT, CAN
22 12:00  375     CP         Casper, WY, USA
24 08:00  376   YAG       Fort Frances, ON, CAN
22 07:00  376    K2         Olds-Didsbury, AB, CAN
23 06:00  378    OT         North Bend, OR, USA
22 06:00  378    AP         Mayne Island, BC, CAN
23 11:30  379     OW        Owatonna, MN, USA
23 11:30  379     DL          Duluth, MN, USA
23 05:00  380   GC         Gillette, WY, USA
24 06:00  380   BBD      Brady, TX, USA
22 07:00  382   YPW      Powell River, BC, CAN
24 13:00  382    JNR       Unalakleet, ALS
22 13:30  382     AW        Marysville, WA, USA
22 07:00  383    PI           Pocatello, ID, USA
22 07:00  383    CNP       Chappell, NE, USA
 
See you in CLE237.


Steve McDonald, VE7SL, is a regular contributor to AmateurRadio.com and writes from British Columbia, Canada. Contact him at [email protected].

LHS Episode #248: Release the Krakel

Hello and welcome to Episode #248 of Linux in the Ham Shack. We're so glad you tuned in today. In this episode, we discuss crypto on the airwaves, Hurricane Florence, Sweden price gouging hams, meritocracy and diversity in Open Source, Linus Torvalds, Linux for Windows(??) and much more. Thank you for listening!

73 de The LHS Crew


Russ Woodman, K5TUX, co-hosts the Linux in the Ham Shack podcast which is available for download in both MP3 and OGG audio format. Contact him at [email protected].

Weekly Propagation Summary – 2018 Sep 24 16:10 UTC

Weekly Propagation Summary (2018 Sep 24 16:10 UTC)

Here is this week’s space weather and geophysical report, issued 2018 Sep 24 0321 UTC.

Highlights of Solar and Geomagnetic Activity 17 – 23 September 2018

Solar activity was at very low levels this period. There were no numbered spot regions and no Earth-directed CMEs observed in available satellite imagery.

No proton events were observed at geosynchronous orbit.

The greater than 2 MeV electron flux at geosynchronous orbit reach high levels on 17 – 23 Sep, with a peak flux of 34,900 pfu observed at 17/0005 UTC.

Geomagnetic field activity was at quiet to unsettled levels from 17 – 19 Sep due to effects from a negative polarity coronal hole high speed stream (CH HSS). Wind speeds began the period on 17 Sep near 370 km/s, but increased to over 500 km/s following the onset of the CH HSS, seeing a peak speed near 587 km/s. Total field strength reached 12 nT while the Bz component saw isolated southward deflections to near -7 nT. Conditions returned to quiet levels on 20 Sep and most of 21 Sep, until the last synoptic period, when a SSBC ahead of a positive polarity CH HSS, increased activity to G1 Minor storm levels. The enhanced conditions continued into 22 Sep, with G1 storm levels reached the first period, and unsettled to active conditions continuing throughout the day. Wind speeds took a while to increase, but along with the SSBC from negative to positive, a CIR enhanced the mag field, increasing total field strength to approximately 11 nT and dropped the Bz component to near -11 nT. Wind speeds eventually increased to reach a peak of 574 km/s late on 22 Sep. By 23 Sep, conditions remained slightly enhanced, with active levels occurring the first synoptic period of the day, but were beginning to subside. Quiet to unsettled conditions returned for the remainder of the day as CH HSS influence continued to wane.

Forecast of Solar and Geomagnetic Activity 24 September – 20 October 2018

Solar activity is expected to be at very low levels throughout the outlook period, with a slight chance for C-class flare activity.

No proton events are expected at geosynchronous orbit.

The greater than 2 MeV electron flux at geosynchronous orbit is expected to be at moderate to high levels through the period. Moderate levels are expected from 06 – 08 Oct. High levels are expected from 24 Sep – 05 Oct, and 09 – 20 Oct.

Geomagnetic field activity is expected to be at G1 (Minor) geomagnetic storm levels on 7, 8, 10, and 19 Oct due to recurrent positive polarity coronal hole high speed streams (CH HSSs). There is a chance for G2 storm levels on 8 Oct as well. Active levels are expected on 24 Sep, and 2, 10, and 20 Oct from the influence of the recurrent CH HSSs as well. Field activity is expected to be at quiet to unsettled levels throughout the remainder of the outlook period.

Don’t forget to visit our live space weather and radio propagation web site, at: http://SunSpotWatch.com/

Live Aurora mapping is at http://aurora.sunspotwatch.com/

If you are on Twitter, please follow these two users: 1. https://Twitter.com/NW7US 2. https://Twitter.com/hfradiospacewx

– – – – – – – – – – – – –

Be sure to subscribe to our space weather and propagation email group, on Groups.io

https://groups.io/g/propagation-and-space-weather

Spread the word!

– – – – – – – – – – – – –

Links of interest:

+ Amazon space weather books: http://g.nw7us.us/fbssw-aSWSC
+ https://Twitter.com/NW7US
+ https://Twitter.com/hfradiospacewx

Space Weather and Ham Radio YouTube Channel News:

I am working on launching a YouTube channel overhaul, that includes series of videos about space weather, radio signal propagation, and more.

Additionally, I am working on improving the educational efforts via the email, Facebook, YouTube, Tumblr, and other activities.

You can help!

Please consider becoming a Patron of these space weather and radio communications services, beginning with the YouTube channel:

https://www.patreon.com/NW7US

The YouTube channel:
https://YouTube.com/NW7US

..


Tomas Hood, NW7US, is a regular contributor to AmateurRadio.com and writes from Nebraska, USA. Tomas is the Space Weather and Radio Propagation Contributing Editor to 'CQ Amateur Radio Magazine', 'The Spectrum Monitor', and 'RadioUser UK Magazine'.

Tech Day – Ham Radio Education Event

Black Forest, Colorado
Sat Oct 13th, 2018 (8:30 AM to 3:30 PM)

Location: Black Forest Fire Station 1
11445 Teachout Road, Colorado Springs

Come to our one-day ham radio education event.

  • Improve your radio knowledge and skills
  • Learn from informative presentations on amateur radio topics
  • Have your handheld radio programmed with local repeater and simplex frequencies
  • Have fun messing around with ham radio stuff!
Time Activity Presenter
8:30 Doors Open
9:00 How to Assemble a 2m J-pole Antenna Adam White, K4SPB
10:00 Portable High Frequency (HF) Operating Shel Radin, KFØUR
11:00 Basic Radio Operating and Net Procedures Barrett Poe, WØASB
11:45 Lunch
12:30 DX with a Technician License Using Satellites Vince Vella, KI6ASW
13:30 VHF Station: Beyond the Handheld Transceiver Bob Witte, KØNR
14:30 Your First HF Station Stu Turner, WØSTU
15:30 End of event

Lunch will be provided.

Sponsored by the Tri-Lakes Monument Radio Association

Check the website for updates: www.w0tlm.com
(some details may change)
There is no registration, no fee, just show up, learn and have fun. Contact: Stu Turner, WØSTU, [email protected]

Download event flyer: Tech Day 2018 Flyer

The post Tech Day – Ham Radio Education Event appeared first on The KØNR Radio Site.


Bob Witte, KØNR, is a regular contributor to AmateurRadio.com and writes from Colorado, USA. Contact him at [email protected].

Amateur Radio Weekly – Issue 219

Beta version WSJT-X 2.0 boasts major changes
Support for standard ARRL Field Day exchanges, such as 6A SNJ and “significantly better sensitivity” (about 1 dB) for the WSPR decoder.
ARRL

Fundraising campaign for critical ISS radio infrastructure upgrade
AMSAT and ARISS are currently supporting a FundRazr campaign to raise $150,000 for critical radio infrastructure upgrade on ISS to enable students to talk to astronauts in space via amateur radio.
AMSAT

SOTA and Mental Health – how it’s helping
SOTA, Amateur Radio, and how it is helping me fight depression and anxiety.
Wadeabout

A Step by Step Tutorial to Receiving GOES-16 Images
A step-by-step guide to setting up a GOES weather satellite receiver with an RTL-SDR dongle, Raspberry Pi and the goestools software.
RTL-SDR

Getting on HF: The Fiddle Factor
The Fiddle Factor is the interaction of multiple barriers to getting on HF.
K0NR

Where a choke chokes
Common mode current suspicions. Various tests of the venerable N9TAX dual band ladder line J antenna suggest the coax becomes rf hot at UHF. It was time to quantify this behavior in the lab.
Magnum Experimentum

Run a Raspberry Pi Program on Boot
Our newest (sorta-Python-related) tutorial shows you a few ways to run a script whenever a Raspberry Pi boots up.
SparkFun

Yellowstone Parks On The Air Adventure and Lessons Learned
Cell service is very, very limited in the park. Data service is non existent if you use AT&T like I did. Therefore there was no way for me to self spot on the cluster.
K0PIR

About Microphones
A primer on mics for Ham Radio
VE7SAR

Tesla Opens with Precomputed Key Fob Attack
This hack precomputes a ton of data, looks for a collision in the dataset, and opens the door. Here’s how it works.
Hack A Day

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Amateur Radio Weekly is curated by Cale Mooth K4HCK. Sign up free to receive ham radio's most relevant news, projects, technology and events by e-mail each week at http://www.hamweekly.com.

Hunting For NDBs in CLE 236

AP-378 Mayne Island, BC



How time flies. Once again it's a CLE weekend. It seems like the last one was just a week ago!




 'CLE's are 'Co-ordinated Listening Events, and NDB DXers around the world focus their listening time on one small slice of the NDB spectrum.

This time the hunting ground is the 15 kHz slice from 370.0 - 384.9 kHz.

This is a somewhat dreaded range for me since my local blowtorch NDB, 'AP' (378 kHz), sits right in the middle of the range. 'AP' is located at the entrance to Active Pass, the main ferry route to Vancouver Island, and the antenna is about 3/4 of a mile down the beach from me. Needless to say, the beacon is about 40db over S9! With careful loop nulling, I can reduce this by about 25db but it's still an enormous signal to deal with.

Hopefully you can put 'AP' in your own log this weekend but its 25-watt signal will be much weaker for you. It's been logged as far east as Illinois and with your receiver in the CW mode, can be found on 378.399 kHz.

All too often our CLE weekends get hammered by geomagnetic disturbances, possibly because our monthly schedule syncs up nicely with the Sun's rotation and the disturbance from the previous month once again rotates into position. Conditions this time surely can't be much worse than for our previous event and today's mid-week check looks promising.


courtesy: NOAA
courtesy: NOAA

Things seem geomagnetically quiet at the moment so lets hope they stay that way. LF and MF propagation can often be amazing in the fall and as summer storms start to dissipate, the band can become much less noisy.

From CLE coordinator Brian Keyte (G3SIA), comes the following CLE info:


Hi all,

Please join us in our 236th coordinated Listening Event which starts
this Friday and celebrates the arrival of the Equinox this weekend.
CLEs are not contests - if you enjoy taking part you will be a winner!

    Days:    Friday 21 September - Monday 24 September
    Times:   Start and end at midday, LOCAL TIME at the receiver
    Range:   370 - 384.9 kHz

Just log all the NDBs that you can identify with their nominal (listed)
frequencies in the range (it includes 370 kHz, but not 385 kHz)
plus any UNIDs that you come across there.

Please send your CLE log to the List in a plain text email if possible
(not in an attachment) with CLE236 and FINAL at the start of its title.
Show on each log line:
    # The date (e.g. 2018-09-21, etc., or just 21) and UTC
          (the date changes at 00:00 UTC)
    # kHz  (the nominal published frequency, if known)
    # The Call Ident.

Show those main items FIRST - other optional details such as Location
and Distance go LATER in the same line. 
If you send interim logs, please also send a 'FINAL' (complete) log.

As always, tell us your own location and brief details of the equipment
that you were using during the weekend.

Joachim or I will send the usual 'Any More Logs?' email at about 17:00
UTC on Tuesday - you can then check that your log has been found OK.
All logs must arrive on the list at the very latest by 08:00 UTC on
Wednesday 26th September.  We hope to complete making the combined
results within a day or two.

To help you to plan your listening, seeklists and maps for your part of the
World are available via the CLE page  http://www.ndblist.info/cle.htm

Good listening - enjoy the CLE.
    Brian
------------------------------------------------------------------
From:     Brian Keyte G3SIA         ndbcle'at'gmail.com
Location:  Surrey, SE England       (CLE coordinator)
------------------------------------------------------------------

If you are interested in some remote listening - maybe due to local difficulties - you could use any one remote receiver for your loggings, stating its location and with the owner’s permission if required. A remote listener may NOT also use another receiver, local or remote, to make further loggings for the same CLE.
 -------------------------------------------------------------------

These listening events serve several purposes. They:
  • determine, worldwide, which beacons are actually in service and on-the-air so the online database can be kept up-to-date
  • determine, worldwide, which beacons are out-of-service or have gone silent since the last CLE covering this range
  • will indicate the state of propagation conditions at the various participant locations
  • will give you an indication of how well your LF/MF receiving system is working
  • give participants a fun yet challenging activity to keep their listening skills honed
Final details can be found at the NDB List website, and worldwide results, for every participant, will be posted there a few days after the event.


The Yahoo ndblist Group has been moved to Groups.io and The NDB List Group will now be found there! The very active group is a great place to learn more about the 'Art of NDB DXing' or to meet other listeners in your region. There is a lot of good information available there and new members are always very welcome. As well, you can follow the results of other CLE participants from night to night as propagation is always an active topic of discussion.

You need not be an NDB List member to participate in the CLEs and all reports, no matter how small, are of much value to the organizers. 

Remember - 'First-time' logs are always VERY welcome!

Reports may be sent to the NDB List Group or e-mailed to CLE co-ordinator, Brian Keyte (G3SIA), whose address appears above. If you are a member of the group, all final results will also be e-mailed and posted there.

Please ... give the CLE a try ... then let us know what NDB's can be heard from your location! Your report can then be added to the worldwide database to help keep it up-to-date.

Have fun and good hunting!

Steve McDonald, VE7SL, is a regular contributor to AmateurRadio.com and writes from British Columbia, Canada. Contact him at [email protected].

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