Posts Tagged ‘Uncategorized’

The Gathering

The theme of this year’s Dayton Hamvention is The Gathering, not to be confused with the annual Insane Clown Posse event of the same name. Out of an abundance of caution, Insane Clown Posse cancelled their 2020 event, prompting several folks to call them Reasonable Clown Posse.

This article originally appeared on Radio Artisan.

Will You Take the Challenge? Or do you like getting caught in the rain?

Like getting caught in the rain?

The final rules for the Fox Mike Hotel Portable Ops Challenge have been posted! This weekend, October 3-4, 2020, is the first year of this new and very differently scored HF contest. The Steering Committee has come up with a metric to make the playing field “more level” between the Big Gun contest stations and the portable operators. By making the basic score scaled on a distance-per-watt metric, the QRO operators don’t necessarily have the advantage that they have in most contest pile-ups. In addition, the POC has multipliers to make the focus on Radio Sport rather than Radio Equipment.

Take the annual Stew Perry 160 meter contest for 2019. I took the public logs and computed data visualizations (box plots) for the average distance in kilometers as well as the longest (“best”) DX distance, both by reported power level. This was QRP, barefoot (100 watts), or QRO. No surprise! The level of power largely shaped the medians and extremes as shown in the Raw Distance panel (row).

Analysis of Stew Perry 2019 160M Distances by Power Level

But look at the Distance Per Watt panel! When made relative to power, the QRP operators flipped the field by dominating those scores. Why? Because it didn’t take more power to make the contact! Getting the optimal power level to make the contact is more about sport than equipment.

So the POC is using these types of results to handicap the field as more fixed stations use QRO than portable ones. While QRP is not synonymous with portable ops, there is a similar tendency for them to operate that way. Barefoot operators can easily be in either location. But the point here is clear: distance per watt can be a great equalizer across these groups. No, wait, the QRPers actually have a distinct advantage. That could be challenging to the QRO contestants, no?

…the POC has multipliers to make the focus on Radio Sport rather than Radio Equipment.

Frank K4FMH

The mode of transmission multiplier, for instance, doesn’t just give extra advantage to CW operations since CW gets through when phone can’t, right? So other than a particular choice of emphasizing using Morse Code, why do that? In addition, CW that can’t be heard by the human ear can’t be copied. But some digital modes (ahem, FT8) that can’t be heard above the noise floor can get through, after some time. The POC gives multipliers that favor the “all else equal” mode that is more difficult to get through. Digital gets a x1, CW gets a x2, and phone gets a x3.

Some Super Stations run a dozen rigs during contests. Wow. How’s that for going up against a single operator? The POC for the first year limits the number of simultaneous transmitters to two (2). But it goes a bit further by dividing the final point total by the number of TXes (or 2, if two are used). For sport, it’s the per-transmitter-production that counts, not the amount of radio equipment. In future years, the POC will consider allowing unlimited transmitters but make the per-transmitter-production scaled so as to level that obvious advantage too. We will see how this year goes in the submitted logs.

Well, does this make the typical fixed contest station (if there is such a thing) equal to a portable one? Directional antennas with gain still give an advantage unless the portable operator sets one or more up as in Field Day activities. ERP was considered but getting a reliable gain estimate can be troublesome. Just read what some manufacturers claim versus what some user measurements come up with. You get idea here about the unreliability of gain estimates perhaps being as much trouble as it is worth. So, the Steering Committee examined some data, did some statistical simulations to compare hypothetical fixed (QTH) stations with portable ones, and came up with a multiplier for operating portable as a type of “tuning parameter” to get things more equal. This is not unlike the slope rating of golf courses which reflects professional judgment of the difficulty of the course itself. The POC has a set of four multipliers depending on the location of the pair of stations in each contact. A QTH to QTH contact has a x1 multiplier. A QTH to Portable has a x1.4 (and Portable to QTH). A portable to portable contact has a multiplier of x2. (Mathematicians note: 1.4 squared is about 2). The Steering Committee will analyze this year’s results to see how this “tuning parameter” performs with an eye on perhaps adjusting it for next year.

The key question is: Will you take the Challenge? If you’re operating from the comforts of your home shack, can you beat the portable operator on a level playing field? We won’t know if you don’t take the Challenge! Or, perhaps you rather get caught in the rain…

Sponsors for the Homebrew Heroes Award for 2020 Announced

Ridgeland, Mississippi— September 15, 2019 — The newest sponsor of the Homebrew Heroes Award Program is the QSO Today Podcast, hosted and published by Eric Guth 4Z1UG. “I am most willing to pitch in. Thanks for this kind of ham radio activity. It’s the kind of thing that is needed to shed light on the heroes who push the boundaries of this great hobby of ours.”

Steering Committee Chair, Frank Howell K4FMH of Ridgeland MS, welcomed the new sponsor with “Eric’s coming on board with a first class soldering station for our 2020 Hero expresses his commitment to our vision for this program. We welcome other sponsors who share his enthusiasm.” Eric 4Z1UG is also the host of the recent QSO Today Virtual Ham Expo which is being continued twice per year after the highly successful launch.

QSO Today Podcast

All sponsors for the 2019 Award are continuing for the 2020 cycle.

Jason Chonko of Siglent Ltd said, “We would love to sponsor the program again for 2020! Siglent will again give an SDS1202X-E oscilloscope to the Hero for 2020. Hans Summers’ use of that instrument to diagnose and redesign a circuit for his popular transceiver was a perfect use case for our test equipment.”

Kaitlyn Franz of Digilent, a National Instruments Company, added “This Award Program is so much in sync with what we are doing at Digilent that we are definitely interested in sponsoring again!”

Richard Stubbs of MFJ Enterprises responded with, “We are in for the Homebrew Hero Award for another year. MFJ was founded and continues to innovate on the basis of homebrew design, manufacturing and availability of parts for this community. Mr. Jue was an original pioneer in successful homebrew design with the CW filter kit back in the 1970s.”

Heil Sound founder Bob Heil K9EID complemented the other continuing sponsors by saying, “This program was so necessary that Heil Sound is on board for the long haul. We will donate key parts for great audio work by the 2020 Hero winner.”

George Zafiropoulos KJ6VU of the Ham Radio Workbench podcast, said, “Jeremy Kolonay KF7IJZ and I are more than happy to continue our sponsorship again this year. The Award is a great activity to highlight people who contribute the homebrew arts and science that our show emphasizes.”

This year’s Hero for 2019, Hans Summers G0UPL, has benefited from sponsor donations a great deal:

The sponsor prizes that get absolutely DAILY use are the Siglent ‘scope and the Heil headphones which sound great on my QCX kits. I have also made good use of the MFJ antenna analyzer and the Analog Discovery2 puck. The Benchduino PCBs did get here but I have not had much chance to think about what to do about them yet but they will be great with the Digilent AD2. These products have been a real benefit to my workbench.

Hans Summers Hero 2019

The promotional partner is the ICQ Podcast where Martin Butler M1MRB and Colin Butler M6BOY are the proprietors. Frank K4FMH is a Presenter.

Martin Butler M1MRB in London UK, a member of the Steering Committee, said, “It’s been a fast year since the Homebrew Hero Award was conceived at Hamvention in 2019. The sponsors, especially with the addition of our fellow podcaster in Israel, Eric Guth 4Z1UG, have been tremendous assets in furthering our mission of identifying and rewarding those in the homebrew and maker space.”

Another Steering Committee member, Colin Butler M6BOY, furthered that thought. “It’s clearly in the sponsor’s interests for the homebrew community to grow. What has long been missing is this program, one whose focus is to lift up those Heroes out there who are pushing, educating, demonstrating and being successful in many different ways.”

The third Steering Committee member, Frank Howell K4FMH of Ridgeland, MS, concluded, “We have received and accepted the recipient of our 2020 Award from our anonymous Selection Committee. Martin, Colin and I are preparing for the formal announcement during October 2020. Stay tuned to our website at homebrewheroes.org for that forthcoming celebration and the ICQ Podcast for relevant news!”

###

For more information, press only:

Frank M. Howell
Contact page on Homebrew Heroes website
@frankmhowell (Twitter)

For more information on the Hombrew Heroes Award: https://homebrewheroes.org

Graphic Logo: https://homebrewheroes.org/index.php/about/

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Next Generation of Heroes Arrives…

News from QRP-Labs….

Homebrew Hero 2019 Hans Summers has been very busy and not from handling sales and QSX design efforts! The next generation of Homebrew Heroes has arrived in the form of Baby Atlas, another son in the Summers household. Hans writes:

Yes, new baby in the house! Born 30-Jun-2020, baby “Atlas”, his weight 3.7kg. My XYL is doing fine too thanks…Hope you enjoy the attached pics! I cuddled my son just a few minutes after he was born and as you see, wearing the homebrew hero T-shirt. The other occasions were when my XYL found a local photographer to do a photoshoot, she did two – one a couple of weeks before the birth and one a couple of weeks after. I was wearing my hero T-shirt in both because the photographer requested white 🙂

Hans Summers Hero 2019

After suffering a back injury last December, Hans has been slowed in the QSX development cycle what with continuing sales of current products being a strategic business revenue source and, ahem, a few family matters to stay attuned to! But progress is being made as he updates the marketplace via his QRP-Labs.com website.

The impact of the donated prizes by our sponsors has been significant:

Yes thanks the Benchduino PCBs did get here but I have not had much chance to think about what to do about them yet. The sponsor prizes that get absolutely DAILY use are the Siglent ‘scope and the Heil headphones which sound great on my QCX kits. I have also made good use of the MFJ antenna analyzer and the Analog Discovery2 pack, though less frequently as of this writing.

Hans Summers Hero 2019

It’s been a very fast-paced year for our 2019 Homebrew Hero. Next month in October, we will announce the Hero for 2020. Stay tuned!

Yet in Quarantine, Life Blossoms!

About a month ago, I asked,

What is going on with you during this challenging situation?” and, “How do you use amateur radio, now that we are all stuck at home?  Are you using ham radio more, now?  Less?

I am moved to say, “Thank you, to each of you who commented and even those who made a video response. I sure appreciate it!

During that video blog (or, Vlog), back a month ago (link: Chat From a Quarantined Software Engineer – Welfare Check!), I mentioned my need for dental surgery. 

I did have to have the tooth removed.  It was completely split down the middle (top to bottom), down to the root.  There was no justifiable way to save the tooth. 

I now am missing two bottom back-most teeth, and one bottom, back-most tooth.  I can report that I have healed up nicely.  I am starting to enjoy a hamburger or two.

Through all of this, I’ve still been working. Also, I’ve been involved with a LOT more ham radio–especially with Morse code activities.

How has the last month treated you?  After watching this new video (below), please leave a comment or two, or three; let hear from you, okay?

More than anything, please leave a comment to let me know how you are doing.  I hope to hear from you.

Here’s the video:

73 de NW7US dit dit

 

Not Getting It

ARRL announced today that they have filed comments with the FCC requesting a dismissal of the Petition for Declaratory Ruling filed by New York University (NYU) regarding digital encoding and encryption.  This petition basically claims that proprietary and closed protocols like PACTOR violate current FCC rules, an opinion I’ve had for several years.  I think the AMBI vocoder used in D-STAR and other digital voice modes falls into the same category as well as it’s not openly documented, like the rules require.  Due to the lack of documentation and openness, such encoding is de facto encryption, which is prohibited.

ARRL’s filing has me smacking my head.  Rather than openly addressing the issue of protocols in amateur radio that are closed and proprietary, they attack the language proposed by the Petition.  Furthermore, they pull CW into this, stating,

The proposed prohibition arguably could include, presumably unintentionally, CW (Morse Code), which is a longstanding means of encoding transmissions. The very fact that messages sent in CW are “encoded” by any definition of the term starkly demonstrates the problem with this proposal.

I’m not sure if ARRL is intentionally being obtuse or just doesn’t understand the crux of the issue with “un-openly” documented digital protocols.  CW, while technically encoding, is 100% openly documented, and has been for a century or more.  It doesn’t require proprietary hardware, software, or algorithms to decode.  PACTOR until most recently could only be decrypted with proprietary hardware.  AMBI and others continual to be closed protocols.  That’s the problem, not semantics over the proposed language in the petition snagging CW as encoding, and encryption.

A few weeks ago I started writing comments to file with the FCC, but I quite honestly lost interest.  I don’t have a horse in this race, other than wanting to see amateur radio continue on well into the future.  I’m just disappointed ARRL doesn’t get what the real problem is, doesn’t make an effort to correct it, and fails to even acknowledge that closed digital protocols are antithetical to the openness and historical foundation of amateur radio.

This article originally appeared on Radio Artisan.


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