LHS Episode #329: The Third Dimension

Welcome to the 329th episode of Linux in the Ham Shack. In this short topics episode, the hosts discuss the Coronavirus and Hamvention, open positions at the ARRL, Kubeflow, LineageOS, SRain, Sweet Home 3D and much more. Thank you for listening and hope to see you all in Xenia this May.

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 – 2020 Mar 02 16:10 UTC

Weekly Propagation Summary (2020 Mar 02 16:10 UTC)

Here is this week’s space weather and geophysical report, issued 2020 Mar 02 0510 UTC.

Highlights of Solar and Geomagnetic Activity 24 February – 01 March 2020

Solar activity was very low over the period under a spotless solar disk. No Earth-directed CMEs were observed.

No proton events were observed at geosynchronous orbit.

The greater than 2 MeV electron flux at geosynchronous orbit was at normal to moderate levels on 24-25 Feb, 27 Feb, and again on 29 Feb-01 Mar. High levels occurred on 26 and 28 Feb with a peak flux of 2,170 pfu observed at 26/1950 UTC.

Geomagnetic field activity ranged from quiet to active levels over the period. Solar wind parameters were at nominal levels from 24 Feb through early on 28 Feb. At 28/0650 UTC total field began to increase to around 8 nT while the Bz component became variable between +/-7 nT. Solar wind speed initially increased to 503 at 29/0248 UTC before increasing a second time to 573 km/s at 29/1942 UTC. This increase in solar wind parameters was due to a connection to a negative polarity southern crown coronal hole high speed stream (CH HSS) followed by a connection with an isolated negative polarity CH HSS. The geomagnetic field responded with quiet levels on 24-28 Feb and quiet to active levels on 29 Feb-01 Mar.

Forecast of Solar and Geomagnetic Activity 02 March – 28 March 2020

Solar activity is expected to continue at very low levels.

No proton events are expected at geosynchronous orbit.

The greater than 2 MeV electron flux at geosynchronous orbit is expected to reach moderate levels on 02-03, 10-18, 22-28 Mar. High levels are expected on 04-09 and 19-21 Mar due to CH HSS influence.

Geomagnetic field activity is expected to increase to unsettled levels on 02-07, 18-20, 27-28 Mar with active periods likely on 02, 19, 27-28 Mar due to CH HSS activity.

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!

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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

..


Visit, subscribe: NW7US Radio Communications and Propagation YouTube Channel

North and South Carolina QSO parties are in the books.

Not much action during the contest. 
I found the State QSO party challenge to be a very good way to get on the radio often and get my CW skills a workout. So far I have taken part in the BC, VT and MN QSO parties and this weekend it is the North and south Carolina QSO parties. I have developed a habit of rolling out my contest software the evening before the contest just to make sure all is functioning. It was a good thing I went through the check as for some reason when I started my go-to contest program N1MM+ I was greeted with a message that the comport this software uses to connect to my Icom 7610 was in use! I shut N1MM+ down and tried JTDX and N3FJP logging software and I again was greeted with the same message. Just last evening all was working just fine and programs were chatting with each other without issue but that is how computers work. The only program that had no issues was WSJT-X why I am not sure. The game began that took close to 2 hours searching for the reason for this new anomaly. In the end, after I restarted my PC for the I would say for the 5th time all was good and the issue was gone. During those 2 hours, I reloaded programs, shut down virus protection, updated radio software, reassigned comports and the list goes on and on and on. Not sure that the issue was but after one of many restarts all is good again at VE9KK. I am sure I changed something but after a while, you lose track of what you did between this time and the last time. I am glad I do this the night before as it would be very frustrating the day of the contest. I ended up posting my software issue on the Win4Icom I.O group I received 2 spot on responses one from the author of the program and the other from a great blogging friend. In a nutshell, the consensus was my comport to the radio was still active with N1MM+ after it has shut down thus giving me issues when trying t start my Win4Icom program. One suggest was to pay attention to the shutdown order of my programs and if all else fails to just restart the Icom 7610 to clear the comport to the radio.
Well it's Saturday morning and I am on the air both on 20m and 40m and I am just not hearing much action for the South Carolina QSO party. The UBA CW contest is going strong with DX into VE9KK.  All was not lost I was able to make 4 contacts in the South Carolina contest on Saturday for a score of 4 QSO's for a score of 274. On Sunday there were either more North Carolina stations in the contest or conditions were just a little bit better as I was able to make 9 QSO's for a score of
316.

Mike Weir, VE9KK, is a regular contributor to AmateurRadio.com and writes from New Brunswick, Canada. Contact him at [email protected].

ICQ Podcast Episode 319 – Launching the Illinois Young Ham Club

In this episode, Martin M1MRB is joined by Leslie Butterfield G0CIB, Edmund Spicer M0MNG and Dan Romanchik KB6NU to discuss the latest Amateur / Ham Radio news. Colin M6BOY rounds up the news in brief and this episode’s feature is - Launching the Illinois Young Ham Club and a report from the BRATS Rally.

ICQ AMATEUR/HAM RADIO PODCAST DONORS

We would like to thank our monthly and annual subscription donors for keeping the podcast advert free. To donate, please visit - http://www.icqpodcast.com/donate

  • Successful 47 GHz Ham Radio Moon Bounce Test
  • Amateur Radio Operating Procedures
  • British Radio Antenna Arrives at Space Station
  • Spy Radio Found During Archaeological Dig
  • SOTA Flavours Challenge DV Week 1-7 March 2020
  • ICQPodcast's Ruth on Air
  • UK 5 MHz Beacon to Close
  • ISWL Callsigns for March 2020
  • Distracted Driving Regulations in Canada Update

Colin Butler, M6BOY, is the host of the ICQ Podcast, a weekly radio show about Amateur Radio. Contact him at [email protected].

Here Comes The Novice Rig Roundup (NRR) 2020!


One of the most enjoyable operating events of the year is fast approaching -- the Novice Rig Roundup or 'NRR'. Technically, it is a contest, but I have the feeling that most participants think of it as just a lot of fun and a nice opportunity to hear and work some of the great old 'classics' of the past -- rigs that were used when they were teenage Novices or rigs that they could only drool about owning, back in those formative years when they each discovered the magic of radio.

Once again the bands will be alive with the sounds of Heath AT-1s, DX-20s, DX-35s, DX-40s and DX-60s, Johnson Adventurers, Eico 720s, Drake 2NTs, Knight T-50s and T-60s, Ameco AC-1s and of course, an endless variety of lovingly-constructed homebrew delights and ... a full week plus two weekends to celebrate the 'good old radio days' of their teen years, as many of us remember them.

The dates to remember are 0000 UTC March 7 to 2359 UTC March 16 and this multi-day opportunity is, for me, what makes the NRR so enjoyable. With a nice diversion from the usual 'contest frenzy' associated with standard weekend operating events, the NRR can be enjoyed throughout the week, whenever you choose to participate. If last year's operating patterns continue, you should find activity at any time of the day ... and even more as sunset arrives.

With the fast-approaching solar minimum, we will be hard-pressed to relive the glory days of worldwide 15m propagation, but many transcon contacts were made during last year's event thanks to some well-timed solar activity! With a little luck and, hopefully, a well-timed solar flare, we may get lucky! If you operate during the daylight hours, please get on 15m and give it a shot ... and be sure to announce your activity on the NRR's sked and chat page here, so that others will know where to find you, especially if you are rock bound in true Novice fashion. With our present spotty conditions, we need all the help we can get and the sked page proved a very valuable asset during last year's affair.

Although technically not required, if you plan to participate it's best to obtain your own NRR number, which is an easy 30-second process.

Additionally, there is an online logger where participants can post their daily log. The nifty logger also keeps track and figures out your score as it goes and no 'after contest' log needs to be submitted. If you plan on submitting a log, the logger is a requirement. The logger will also require you to set up a 'log-in' and once again, a simple 30-second process will take care of that from here. If you used the logger last year, you will have to set it up again for this year as the old system has been changed.



Stations may run either crystal-control or VFO or can switch between either method ... the online logger will keep track and score things appropriately.


All of the rules and information can be found on the NRR's excellent website. As well, the soapbox comments and station pictures from last year's NRR may provide the inspiration that you need to spark-up your own activity in this year's event ... from what I can tell, this year will be bigger and busier than ever!


There is also a dedicated NRR Group, often the source of much valuable discussion but there is a now HUGE group of great NRR chat and activity now on Facebook's NRR Group here. I avoided Facebook for many years and have now discovered that it is an excellent forum for real time chat and information exchange ... one can still choose to maintain a very low profile and avoid unwanted interaction if set up correctly.

In 2017 I ran my homebrew Longfeller in the (now eliminated) QRP category, and had a ton of fun. You can read about it here. Last year, I refurbished a nice Drake 2NT that had been gathering dust in the basement for over 25 years and ran it during the 2018 NRR. You can read about my activity and some of the rigs encountered during last year's fun here.

If you have access to the web while operating, be sure to bookmark and check into the NRR's realtime chat page. Many ops that are crystal controlled will announce their operating frequencies, making it easier for you to find them ... sometimes way up or down from the normal NRR watering holes of ~  3550 - 3650 kHz7100 -7125 kHz, 21.100 - 21.150 MHz and 28.114, 28.120 MHz ... and don't forget to check the colorburst crystal frequency of 3579!

'CQ'ers should always remember to tune up and down the watering hole for replies from other NRR stations that may be crystal controlled and not able to answer you on your own frequency!! This is extremely important and a real reminder of what was common practice back in the Novice days.


courtesy: Harry - VE7AIJ
Harry's homebrew 6AQ5 crystal oscillator (Feb '55 Popular Electronics) and Hallicrafters S-53, pictured above, allowed him to work the world back in the amazing radio days of Cycle 19. Let's relive some of that excitement in the closing days of Cycle 24 ... in the NRR!


You still have time to get that old clunker on the air but if that's not possible, you can join the fun with your modern rig as well ... all are welcome to jump in and have a great week of radio-fun. I think you will be surprised, just as I was last year, how good some of these old classics can sound ... and you'll hear some great bug-fists as well.


Need more inspiration? ... here's a summary of my own experience of the 2018 NRR:

                           ***********************
The NRR once again provided many notable highlights over the nine day event.

Almost topping the list was just experiencing the variety of old classics and hearing how well almost all of them sounded. Numerous Knight T-60s, Drake 2NTs, Heath DX-40s, Johnson Adventurers and Eico 720s, along with a nice variety of homebrew MOPAs and one-tube power oscillators graced the nightly airwaves. These oft-forgotten shelf-queens always seem to develop super-powers, far beyond their expectations, when the NRR rolls around!

I was really surprised to work so many T-60s, a small and inexpensive 60 watt transmitter kit from 1962 using a popular 6DQ6 television  sweep tube ... one never expected to achieve such RF greatness! I was very impressed with every one that I heard.


What radio-struck pre-Novice teen, dreaming about getting on the air, could resist a clever ad like this.


Scott, KA9P's 80m T-60 signal sounded as sweet as it looks in his 2018 setup, paired with his Heathkit HR-10B inhaler.

KA9P 2018 NRR station with RAF Vulcan bomber Type 51 hand pump

Right up there with the plethora of T-60s was the Drake 2NT, another great sounding radio and also my choice for this year's event. My summer refurbishing project, described here, proved a worthy companion, although my much-treasured VF-1 VFO's short term drift probably had my 2NT getting red in the face whenever I took her off of crystal control to scurry around the band, seeking out the CQ'ers. I've had a love-hate relationship with the VF-1 ever since buying my first one back in '63!


VE7SL 2018 NRR with 2NT, VF-1 and my Original '63 Vibroplex

Yet another 2NT packed a powerful punch from West Virginia, keyed by Dave, W3NP, when we exchanged 579 reports on 40m, 45 minutes before sunset.

W3NP - 2018 NRR setup
This year's band conditions were excellent as both 40 and 80m sounded much as I remember them sounding back in the 60's ... loaded with strong North American CW signals almost every night. Unfortunately, Solar Cycle 24 has taken its toll on 15m and although the band appeared to often have daily though somewhat dicey propagation, there appeared to be few NRR stations using the band.

I made three contacts on 15m this year: W5IQS in Texas, K2YWE in Maryland and WN4NRR in Florida, whose S9 reply to my 'CQ NRR' just about took my head off ... what a nice surprise to hear the booming signal from Bry's 2NT powerhouse. Dan, K2YWE, was no slouch either, as his Globe Scout was music to my ears when his signal quickly rose out of the noise just long enough to make the coast-to-coast journey. If the predictions for future solar cycles become reality, there may be many more NRRs before we experience the magic of 15m once again.

K2YWE's Globe Scout and Adventurer were worked on all three bands!

My NRR exchanges with George, N3GJ (KA3JWJ) in Pennsylvania, truly demonstrated just how well the low bands were performing. More than an hour before my local sunset, I responded to his 569 40m 'CQ NRR' only to learn that his signal, now reaching a solid 579, was coming from an original Ameco AC-1! This one-tube crystal-controlled power oscillator has, over the years, reached Holy Grail status among many amateurs. Originals are guarded like precious jewels and handed down from father to son ... or in George's case, from uncle to nephew!

N3GJ and his all powerful original AC-1
I was astounded at the strength of his signal and before exchanging '73's added 'CUL on 80', not really thinking how low the chances of that might really be. Two hours later, his even stronger 'CQ NRR' was heard on 80m, as his 579 signal flirted with reaching S8 ... all emanating from just a low hanging inverted-V.  It's nights like this that remind me how I was bitten by the radio bug so many years ago and to have them coincide with the NRR was an added bonus. I've rated my contacts with George's AC-1 the highlight of this year's NRR for me!

Heathkits were plentiful too, with the DX-60 seeming to be the rig of choice, often paired with the matching HG-10 VFO. Both Mark, VA7MM and Gary, W8PU, packed a wallop with these fine examples.

VA7MM - 2018 NRR set-up

W8PU - 2018 NRR set-up

But it wasn't just DX-60s representing Benton Harbor engineering in the NRR. All of these neat old Heaths made it out to the west coast, sometimes on both 40 and 80. KN8RHM's (Rick) HW-16 made it here on 40m with a solid signal almost every night, while KE4OH (Steve) sported a modernized DX-20 in the form of Heath's HX-11. Steve even received the highly-treasured 'OO' report for his NRR chirp ... good job!

KN8RHM - HW-16 NRR set-up
 
KE4OH - HX-11 NRR station
Not to be forgotten was the ubiquitous DX-40, used by several, including this proud old warhorse, lovingly keyed by Doug, N3PDT.

N3PDT - DX-40 NRR transmitter

Rich, WN7NRR / AG5M operating in nearby Washington state put some of his 44 crystals to work with his HW-16 ... that's some collection!

WN7NRR - HW-16 NTT set-up
It seems that many NRRers are as adept with a soldering iron as they are with a hand key, as several homebrew transmitters were worked from here as well.

Howie, WB2AWQ in Reno, was using his homebrew pair of 807s, driven with a Millen 90700 swing-arm VFO from 1945. Most shacks worldwide, including the Novices, found plenty of use for the 807 as they were dirt-cheap in the post war surplus market. The filament has a beautiful illumination and if a bit gassy as most are by now, emit a wonderous blue glow with each press of the key.

WB2AWQ - 807s
Millen VFO from 1945 at WB2AWQ
KD7JG (Joe) in Oregon, sported a 12 volt version of the 807, a 1625, in his home brew rock-crusher. With 25 watts into his ladderline-fed 160m inverted-V, his 599 signal up here was hard to miss on both 40 and 80m.

KD7JG's 1625 NRR mainstay
K4IBZ down in Florida also utilized the magical 6DQ6 sweep tube in his homebrew rig for 80 and 40m. Bill was worked on both bands from here with his 10 watts receiving a 569 on both contacts.

K4IBZ's 10 watter
AA8V, Greg in Maryland, used an LM-13 war surplus frequency meter to drive a popular Novice pairing of the 6AG7 / 6146 at 90W input ... good enough for a 579 report on 40m, 30 minutes before my sunset.

AA8V's homebrew NRR stack
The runner-up highlight was my 80m QSO with Lou, VE3BDV / VE3AWA who worked me on 3568 kHz using his Bare-Essentials 50C5 crystal controlled power oscillator at 7 watts. I understand that this rig enjoyed some popularity among many Novices as a 'first transmitter'. Being connected directly across the A.C. mains, fully exposed, would require some delicate handling!

VE3BDV / VE3AWA - 50C5 Bare - Essentials power oscillator

I finished up the NRR with 123 contacts, a lot better than last year's event when I was running the Longfeller at 5 watts.

As indicated on the NRR website, this is "more of an EVENT than just a typical contest ... once again taking our OLD ham radios off the shelf and putting them to use again! "

See you in the 2020 NRR!

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

Ham College 62

Ham College episode 62 is now available for download.

Extra Class Exam Questions – Part 1
Operating Standards: frequency privileges; automatic message forwarding; stations aboard ships or aircraft; power restriction on 630 and 2200 meter bands.

52:49

Download
YouTube


George Thomas, W5JDX, is co-host of AmateurLogic.TV, an original amateur radio video program hosted by George Thomas (W5JDX), Tommy Martin (N5ZNO), Peter Berrett (VK3PB), and Emile Diodene (KE5QKR). Contact him at [email protected].

The Ultimax DXtreme

The retired W1SFR
For the past few days, our weather here on the East coast has been excellent nice warm weather (up to +10) with no rain and just great sunny skies. On the second day of this great weather, I decided it was time to put up my new Ultimax DXtreme EndFed antenna. The antenna I have at present is the W1SFR KX3 helper EndFed antenna.  As I have said past posts this is a fantastic antenna, very well built and works as advertised. So why am I replacing this antenna with yet another EndFed antenna, this is a very good question and was answered in this post.
Ultimax size difference
When I took the KX3 helper down I was pleasantly surprised how great the balun enclosure looked. It has been up for over 6 months exposed all kinds of weather and looked as new as the first day it went up. The first step to get the new antenna up was to install the counterpoise that I ordered with the Ultimax antenna. The configuration for my EndFed antenna is the Balun end is in a tree about 25 feet high with the wire extending down to my shed and is terminated about 8 feet above the ground. This is the same configuration I am going to use for the Ultimax antenna as well. The counterpoise from Ultimax antennas consists of a single wire for about 6 feet and then it splits into 2 separate wires. I used a staple gun to secure the counterpoise to the tree trunk.  The only choice I had was to place one counterpoise leg on one side of the tree trunk and the other one on the opposite side. The tree is only about 1.5 feet around so the counterpoise wires are not that far apart. At the bottom of the tree, each counterpoise goes along the ground in opposite directions for about 15 feet.
The Ultimax antenna is rated at 2KW SSB with 14 gauge wire along with a hefty insulator. Since my max output will be 100 watts CW and tops 80 watts DATA the insulator and wire on the Ultimax is a bit too heavy duty. Plus my support at the wire end is a wooden pole that is not meant for heavy-duty support.
Ultimax is up. 
The idea was to use the wire from the W1SFR KX3 helper as so I thought at the time it was only 2 feet longer than the Ultimax antenna wire but very light. I folded over the wire to bring it down to 33 feet to match the Ultimax wire length and check the SWR on 80, 40, 30, 20 17 and 15m both with and without a counterpoise. The results show when using a counterpoise the SWR was not as good as without. I am guessing this is because of the position of the counterpoise, I was running out of time and not able to play too much with the counterpoise. We are expecting a very large snowstorm tomorrow so the antenna play is done for now. I am going to leave the antenna up without the counterpoise attached. BUT having said that the counterpoise is very easy to attach if need be.

Results without a counterpoise:
     Band              Freq           SWR
    80.              4.000.        7.0
    80.              3.500.        8.1
    40.              7.001.        1.8
    40.              7.070.        1.8
    30.              10.100.     3.3
    30.              10.150.     3.3
    20.              14.001.     4.6
    20.              14.070.     4.6
    17.              18.068.     2.5
    17.              18.168.     2.5
    21.              21.001.     1.5
    21.              21.070.     1.5
 
  
Results with a counterpoise:
         Band              Freq           SWR
    80.              4.000.        6.5
    80.              3.500.       9.1
    40.              7.001.       5.2
    40.              7.070.       5.2
    30.              10.100.     2.2
    30.              10.150.     2.2
    20.              14.001.     4.9
    20.              14.070.     4.9
    17.              18.068.     2.7
    17.              18.168.     2.6
    21.              21.001.     1.6
    21.              21.070.     1.5
Results from W1SFR EndFed:
         Band              Freq           SWR
    40.              7.001.        1.9
    40.              7.070.        2.5
    30.              10.100.     4.4
    30.              10.150.     4.5
    20.              14.001.     4.5
    20.              14.070.     4.3
    17.              18.068.     1.5
    17.              18.168.     1.5
    21.              21.001.     1.8
    21.              21.070.     1.8
   




Mike Weir, VE9KK, is a regular contributor to AmateurRadio.com and writes from New Brunswick, Canada. Contact him at [email protected].

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