Amateur Radio Weekly – Issue 343

Amateur Radio Weekly

Why M17 is significant
No other Amateur Radio digital voice system is as well defined as M17.
Zero Retries

QSL cards from the past
A complete collection of old QSL cards now totaling more than 56,000.
W8JYZ

Ham Radio becomes voice of victims and rescue teams alike
The operators are accompanying each rescue team, providing real-time updates on the situation on the ground.
India.com

San Francisco Ham Radio operators provide critical communication link
Ham Radio operators across Northern California provided a critical communication link to embattled first responders.
KPIX

HFGCS: The backup plan for doomsday
The United States Strategic Forces Command built their backup plan around the unique properties of HF radio.
Hackaday

The QubeDX: A modular CubeSat style QRP Transceiver
Building a QRP radio for digi mode operation that can be operated remotely via Wi-Fi.
DK1MI

Loop the loop on 6 meters
Meteor scatter is probably one of the coolest things that Techs can do.
KB6NU

Store and Forward
A podcast about the past and future of Ham Radio.
Store and Forward

An introduction to the 1.25 meter band
222 MHz has many of the qualities of 2 meters, with the added benefit of less consumer electronics interference and generally a lower noise floor.
N4DTF

Video

Analog television transmission with a HackRF SDR
Using a program called hacktv-gui to transmit analog TV signals.
Signals Everywhere

The beginners guide to the Radioberry HF SDR Transceiver Pi Hat
The first initial steps needed to install the Radioberry service on a Raspberry Pi 4.
Tech Minds

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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.

LOTW Operational Again: Lessons Unlearned

After several weeks of downtime due to a ransomware attack that crippled the Logbook of the World (LOTW) service and much of ARRL’s IT infrastructure, LOTW is finally operational again. Jeff Davis, KE9V, penned a compelling article in response to ARRL CEO David Minster NA2AA’s Second Century article entitled Dewy Defeats Truman! Davis’s critique eloquently highlights the shortcomings in ARRL’s response to this event. In previous articles, I’ve also addressed the inadequate communications and suggested improvements, while noting that members discovered the nature of the attack through a Maine public document.

NA2AA’s recent column suggests that ARRL leadership has failed to learn crucial lessons about communication, transparency, and stakeholder management during a crisis. Rather than approaching the situation with humility and acknowledging areas for improvement, the column draws a flawed comparison to the historical “Dewey Defeats Truman” headline—a result of rushed journalism. In contrast, any misinformation circulating during the LOTW outage was largely due to ARRL’s infrequent and uninformative updates, which lacked warmth and personality.

While the column rightly highlights LOTW’s undeniable success, it also raises concerns about the high volume of non-ARRL member usage. The suggestion of potentially charging for LOTW use is intriguing, especially given ARRL’s challenges with membership numbers and revenue, and its ongoing tendency to alienate and outrage members. Implementing LOTW as an a la carte service for non-members could be a viable revenue strategy for the organization. However, it’s crucial to recognize that paying customers may have different expectations than organization members. In the event of future outages or communication issues, ARRL should be prepared for less patience and forgiveness from a customer base compared to its membership if leadership sees no reason to change its course with communication and transparency.

ARRL Life Member, K3NG

This article was originally posted on Radio Artisan.


Anthony, K3NG, is a regular contributor to AmateurRadio.com.

Going beyond instant character recognition or ICR

 


All of us are at one place or another in our CW journey and with each path there are up and down times. Times when things connect and other times when there is a disconnect. If you think about it this is not just CW that operates this way. When you are learning to drive one day you can parallel park like a pro and the next day you could not do it if your life depended on it. Learning the times table back in school and you are great with the 9 times table....then in class, you are asked 9x7  and you go blank. Well, going beyond ICR can be the same way. Is there something beyond ICR you ask.....by golly Miss Mollie there is! 


Learning is an adventure no matter what you are challenging yourself with. I am a firm believer that to keep the mind, body and spirit healthy you need to be challenging yourself. This brings me to the next step beyond ICR.  It is the art of words and Q codes training and it is different from  ICR. In my humble opinion, I do feel you should master ICR before you jump into word and Q code recognition.
If you have ICR pretty much happening for you the next step is instant recognition but with a twist. Your brain is very powerful and I can't emphasize this enough. Now understand when I say powerful it does not necessarily mean this next step is going to be a breeze. Remember you have trained your brain to hear a letter or a number and recognize the sound and in a split second.
Now your brain is going to hear QTH, OP, WX, RIG and so on it has been conditioned to tell you Q  T  H. Well it is time to change it up again but not to worry your brain can compartmentalize things with practice. 


How does this new adventure work you ask? Let's go in reverse for a moment and go back to when you were learning ICR. You knew dit dit dit dah sound was "V" as you hear each dit and dah but for  ICR to work that was just too slow and you would get lost and get behind. Oh, which reminds me of the art of copying behind....but that is another post.... moving from copying each dit and dah to ICR you had to speed up the sending of each letter so it was impossible for you to hear each dit and dah but a sound. Learning the sound of each letter was the key.  The brain can handle that with no problem as you know if you have a grip on  ICR. 


Words and Q codes instant recognition is the same, you have to speed things up a little but just a little. Your brain has to hear what QTH sounds like and not Q  T  H. Impossible you say...I bet we all know CQ and 73 at any speed and don't hear the ICR equivalent of each letter. Your brain will put the new word and Q codes in a new compartment in your brain. Soon you will train your brain for words and Q codes. Keep reviewing your ICR as well and in time both will blend into one compartment in your brain.  The key to word and Q code instant recognition is speed up the sending just a bit. You want to hear the sound and each letter as ICR.


As for programs for learning words and Q codes, there are many programs out there that will send you anything a different speeds. If you have mastered ICR you will be aware of some programs that worked for you and chances are they also will function as word and Q code trainers as well. Just like with ICR work with some words or Q codes and then move on to more once those are familiar and then add more. Another excellent way to learn is to also turn the power on your rig to zero and practice sending the words and Q codes you are learning. The more involved your body is in learning the easier moving ahead will be.  


If you have any questions either leave a question in the comment section or email me and my email on my blog.


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

LHS Episode #550: Stuck in Traffic

Hello and welcome to Episode 550 of Linux in the Ham Shack. In this short topics episode, the hosts discuss an award for GNU Radio, traffic nets, a new release of OBS, the aftermath of Crowdstrike, M17 hardware, the latest Linux Mint and much more. Thanks for listening and have a great week.

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].

Amateur Radio Weekly – Issue 342

Amateur Radio Weekly

Sunspot counts hit a 23-year high
The sun is partying like it’s 2001.
SpaceWeather.com

Climate change and Amateur Radio
It is an important topic and it does affect many aspects of our Amateur Radio hobby.
The Random Wire

SolarHam
Providing real time space weather news and data from various sources, all in one location for easy navigation.
VE3EN

Help me make a Ham zine
Let’s make this a community effort.
KB6NU

Charging your laptop or tablet off-grid
I always suggest taking an adapter which has a minimum of 60-watts, 5-20 volt 3-5 amps on the USB-C power delivery port.
Off Grid Ham

Beyond the beacon: Discovering the unexpected benefits of WSPR
You can use the data that’s generated by the WSPR network to check your own antenna’s performance for transmitting and receiving.
QRPer

Unexpected X- and C-shaped structures in the atmosphere
When bubbles, crests or solar storms disrupt the plasma distribution in the ionosphere, radio signals passing through the atmospheric layer can be changed, lost, or fade away.
CNN

Video

D-Star, DMR, C4FM, explained
For newcomers in digital Amateur Radio communications, getting familiar with all the terms, modes, and reflectors can be very confusing.
Laboenligne.ca

Introduction to mobile POTA operations
A guide to activations in the park.
Ham Radio Prep

Contesting for Technicians
HF contesting for Technician Class Ham Radio Operators.
W1DED

History of an FCC monitoring station
With a Former FCC trainer, Ham, and engineer.
Ham Radio Perspectives

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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.

Power on HF and Microwave Frequencies in Canada:

Results from the RAC 2021 Survey

In this brief article, I focus on how much transmit power is typically used on the HF and microwave bands. Survey respondents were asked about what they consider “typical” usage although these settings can certainly be different at any given operation. The results do give the reader a picture of how amplifiers are used on these two broad segments of band allocations by Canadian ham operators.

In Figure 1 (click for larger image), the maximum power used to transmit on 160-6 meters is displayed in a pie chart. Although many may not agree that 10 watts is QRP power, we are using that convention here. About three-fourths of the survey respondents say they use between 10 and 150 watts in a typical transmission. This is a wide gap in RF power. However, it is a range that places operators between QRP and what many of today’s HF transceivers will output. Some 17 percent use over 150 watts, perhaps up to their license limit. Only 7 percent report that they use QRP levels at less than 10 watts. These responses are not contingent on the mode of transmission.

Turning to the VHF and UHF bands, Figure 2 summarizes the typical power used in Canada. A similar pattern occurs as in HF and six-meter operation. Just under three-fourths (71%) use between 10-150 watts on a regular basis. A small slice, some 2 percent, report over 150 watts. About one-fourth (27%) say that less than 10 watts is what they typically use in these bands.

In both HF and the VHF/UHF frequency bands, only a small proportion say they use amplifiers to reach over the 150-watt RF power mark. There is a small but notable share using what we’ve termed QRP levels in HF (7%). A decidedly larger share use above QRP levels in VHF or UHF bands (27%). For many hams, this is very understandable, given the most popular band of 2 Meters (92%). But operations on HF using a 10-watt definition of QRP are much smaller.

The power utilized in the microwave bands reflects a very different picture. Figure 3 displays two box plots to illustrate. As shown in previous articles on this blog, microwave band usage is a niche activity within Canadian ham radio. Fewer than 10 percent report any activity but these spent quite a bit of time on these frequencies. Likewise, the boxplot in the left panel of Figure 3 illustrates the small number of microwave aficionados who use high power. (This is power in watts without consideration of antenna gain.)

In the right panel, I’ve reproduced the left-hand panel’s data in watts into a logged form to allow readers to more closely see the lower power portion of the distribution. The log of the power in watts places less emphasis in the smaller frequencies at the extreme power levels. The average power usage is 40 watts with a majority under 100 watts of power. This is not the power level emitted from the antenna with is buoyed by the relative gain of the antenna.

I examined these transmitter power reports by province, age group and license class. There was not much meaningful variation in those data apart from the differences in reported activities on microwave bands. In part, this is the limitation I mentioned of the small number of extreme values in the upper power range. The specialization of using high power in the microwave frequencies is a small number of Canadian hams, at least in this survey. It would take a new sampling design to “over sample” hams who are microwave users to get a more reliable estimate of the higher power ranges in use.

In summary, power output in Canadian amateur radio operations tends to reflect the output of the transceiver on HF bands. There is a wide variation in the category but this is a reasonable conclusion. QRP use is a bit smaller than I expected, given the popularity of portable operations (37%). But this reminds us that not all portable operations use low power. There is innovation in a small group of microwave operators. They use a significant amount of power. A later article will examine reported gain in antennas used in this band. As the microwave bands become more routinized in the hobby, these pioneering leaders will have laid a path for others to follow.


Frank Howell, K4FMH, is a regular contributor to AmateurRadio.com and writes from Mississippi, USA. Contact him at [email protected].

2024 Colorado 14er Event (SOTA)

Amateur Radio Fun in the Colorado Mountains
August 2 through 5, 2024

www.ham14er.org

Amateur Radio operators from around Colorado will be climbing Colorado Summits On The Air (SOTA) peaks and communicating with other radio amateurs across the state and around the world. Join in the fun during the annual event by activating a summit or contacting (chasing) the mountaintop stations.

This event is normally held the first full weekend in August. Again this year, we will add two bonus days to the Colorado 14er Event. The main two days remain Saturday and Sunday (Aug 3 & 4), while the bonus days are Friday Aug 2nd and Monday Aug 5th, for those SOTA enthusiasts that need more than two days of SOTA fun! Be aware that many mountaintop activators will hit the trail early with the goal of being off the summits by (1800 UTC) noon due to lightning safety concerns.

The 14er event includes Summits On the Air (SOTA) peaks, which provide over 1700 summits to activate. (See the W0C SOTA web page or browse the SOTA Atlas.) The Colorado 14er Event was started in 1991, about 19 years before the SOTA program was set up in Colorado. As SOTA grew in popularity, this event expanded from just the 14,000-foot mountains (14ers) to include all of the SOTA summits in the state. We still call it the Colorado 14er Event because, well, that’s where it all started and the 14ers are the iconic summits in the state.

Important: The recommended 2m FM frequencies have been changed to 146.58, 146.55, and 146.49 MHz, to align with the use of the North America Adventure Frequency for SOTA (146.58). The National Simplex Calling Frequency (146.52) may be used as appropriate. There will be plenty of action on the other ham bands, for more information see the operating frequencies page.

Resources:
Colorado 14er Event webpage  – Everything to Know About The Colorado 14er Event
Beginner Guide – For the first-time activator
Ham14er Groups.io  – Discussion Group for the event
Colorado SOTA groups.io – Colorado SOTA discussion group

Colorado 14er Event Task Force
[email protected]

The post 2024 Colorado 14er Event (SOTA) 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].

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