Posts Tagged ‘Uncategorized’

K5A Special Event Station

Screenshot from 2018-08-10 08-40-25

On Saturday, August 11, 2018, the Bella Vista Radio Club will be operating a special event station at the Shiloh Museum of Ozark History in Springdale Arkansas. This is to celebrate the 50th year anniversary of the museum. We will be operating on the museum grounds from the General Store. Listen for us on the air starting Aug 11, at 1300Z. Operations will conclude at 2300Z.  Two stations, one SSB and the other CW, will be operating on or near 14.250, 14.035, 7.250 and 7.035.

I will be participating part of the day, likely on the SSB station. I may spend some time trying to listen to CW to see if I can decode it yet! Gotta work on that!

For more information see the following links:
ARRL Link
Bella Vista Radio Club Link

Looking forward to having a QSO with you on Saturday!

 

 

FT8

It’s like slot machines for amateur radio.

 

DMR Hotspot

There is a lot of blogs, forums and place to get information about various aspects of our hobby. Ham Radio, as you all know, is a diverse hobby with a lot of different ways to  enjoy it. This post is going to be about my learning and stepping in DMR. As with most of my posts, this is aimed at someone just looking at and thinking about diving into DMR. If you are a seasoned DMR operator, then you likely know all this already.

A friend of mine brought an inexpensive TYT MD-380 DMR radio to a club meeting and told us about DMR. He uses it a lot when he travels around a two state are for his job and loves it. After that, I decided to order the same radio and see what DMR was all about.  This friend sent me his code plug and when I looked at it I was lost. He had all the repeaters for two states, lots of talk groups and lots of operator call signs. It was a lot to digest for someone who didn’t know how to program a DMR radio.

I decided to take a step back and learn some more about how DMR works and how to do the programming. I wanted to start simple and begin my code plug from scratch. The closest DMR repeater to my house is about 20 miles away and with all the hills around Arkansas, I cannot hear it with the HT antenna. I figured putting together my own hotspot would be the ticket as I have three Raspberry Pi’s sitting around doing nothing but collecting dust, so acting on some advice from more experienced hams, I ordered a DVMega board to go with one of the Pi’s.

I asked a friend with a 3D printer to print this case for the Pi and DVMega from Thingiverse.

IMG_0246

The completed Pi, DVMega combination put together and ready to go. Yes there are two screws missing. I don’t know that I need them so I left them out.

For storage for the Pi, I used a Sandisk class 10 32GB micro SD card that I already had. It is important to use a decent storage card so the performance isn’t worse than it needs to be. One of these cards is less than $15, so it is not very expensive compared to the cost of the entire hotspot project.

One could download Raspian and install all the software separately but there is an image already created that is very popular called Pi-Star. It is essentially Raspian with MMDVMHost, DStarRepeater and other software included. It is an easy way to get everything you need for DMR, DStar, P25 and more digital voice modes.

Pi-Star can be downloaded from here. Once the image was downloaded, I used the Linux dd command to write the image to the card.

After inserting the card into the Pi and booting it up, there are two very important steps. The first is to expand the image to use the entire card. When first written, a small portion of the space is used and a command needs to be run to expand the file system to use the rest of the space. That command is pistar-expand. The second important thing to do is to make sure the image is updated. The Pi-Star creators provide two commands for doing that. pistar-update / pistar-upgrade which are similar to the Raspian apt-get-update and apt-get upgrade commands but do so for the operating system and the software included in pi-star.

To setup the Pi-Star software, I followed along with this page:

https://www.toshen.com/ke0fhs/pi-star.htm

There is a lot of information on this site in addition to this page related to DMR. It was worth browsing around and finding information that I didn’t know.

After configuring the hotspot, I was able to verify that it connected to the BrandMeister Network.

The next step was to program the TYT MD-380. I had to choose a simplex 70cm frequency. After consulting the band plans and looking at the Arkansas repeater council page, I was able to choose one to use.

I won’t go into a lot of detail on programming the radio as there are a lot of YouTube videos and web pages describing that process.

I listen to the Hamradio 360 Workbench podcast and they use a talk group that I programmed into a channel and was able to hear some of that traffic. I also made a call and confirmed that I was able to transmit on the talk group as well as receive.

My next step is to find other talk groups that I might want to listen to, and determine how I will use DMR going forward. I am planning on taking the hotspot on business trips and possibly use it in the car for DMR mobile. I’ll figure that out as I go along.

Overall the process was not difficult, but took some time researching how DMR worked so I could understand the programming better. I used many web resources along with several YouTube videos. I still have a few more bookmarked to watch but I am getting a handle on it.

Comments and questions are welcome.

Meh

No doubt you’ve seen the recent ARRL proposal to increase Technician HF privileges and the expected ensuing online debate over it.  In general I’m not opposed to the proposal, however I find myself indifferent. As others have pontificated, it’s not much of a hurdle these days to upgrade to General to acquire more privileges.  I was very supportive of the code test elimination and various changes over the years that have simplified licensing.  However, to some extent I think we’re at a point of diminishing returns with benefits from licensing changes and privilege increases.  There’s perhaps one specific area I see the ARRL-proposed changes increasing on air activity: FT8.  If Techs are given HF digital privileges on lower bands, I suspect we’ll see a lot of Techs end up there, and stay there, like a lot of Techs do today with 2 meter repeaters, unfortunately.  With new radio amateur recruiting, participation, and retention, where should our focus be, what are the real stumbling blocks, and where is the opportunity?  It’s not privileges.  In thinking about the ARRL proposal, I’m kind of left thinking, “Meh.”

We need to look where the bulk of amateur technology hobbyist activity is today.  It’s the Maker movement.  These are intelligent, innovative, and inquisitive people who would be a great asset in amateur radio.  It’s often been said that amateur radio and its perhaps dated technology can’t compete with the Internet, Xboxes, and cell phones.  That may apply to your grandkids, but with Makers it’s not an issue.  Makers enjoy playing with retro technology, like Nixie tubes, for example.  They like building stuff and experimenting.  They also like cutting edge technology, like satellites.  Amateur radio has the perfect blend of retro and modern technology, and it has the opportunity to take Makers beyond the typical Maker fare of microcontrollers, single board computers, 3D printing, and robotics.  Unlike “preppers” coming into the hobby for a specific application for their own purposes, Makers will be active and contributing participants and arguably are more likely to advance the radio art, as amateur radio was intended to do.  But we need to have a culture that welcomes them, on their turf, and their venues, not just ours.

The Maker movement is a potential goldmine for amateur radio, one that needs to tapped, right now.  This goes beyond having an amateur radio display at a Maker Faire stocked with pamphlets.  If we really want to increase participation and new licensee retention, we need to pull out all the stops and target this demographic with technology, exhibitions, publications, and venues that tie amateur radio into their curiosities, interests, and projects.  We need to be seen as innovators, not preservationists or on air retirement communities.  There needs to be cultural change within amateur radio.  While more kilohertz for newcomers is nice, and fairly easy to implement, it’s not going to get sizable returns in participation and retention.  Targeting Makers will.

This article originally appeared on Radio Artisan.

Yet Another ARRL Opinion

For the first time in my amateur radio career, I’m beginning to look upon ARRL unfavorably.  About 15 years ago after I acquired a lifetime subscription, my grandfather chastised me saying I’d eventually grow tired of the League and would regret my subscription.  I’m sad to say I think that day may have come.

Over the years I’ve defended ARRL, in both in person conversations and online.  ARRL attracts a lot of haters, often unfairly, for wrong reasons.  For example, I’ve witnessed many hams hate ARRL, claiming they don’t like CW and worked to eliminate it, despite ARRL supporting code testing for Extra licensing in their FCC comments filings years ago, and offering daily code bulletins and practice over the air.  Despite ARRL’s faults and shortcomings, amateur radio would not be where it is today, and perhaps not even exist, if it wasn’t for ARRL.

With the recent Code of Conduct and censure incident and the proposed voting and membership changes, I’m left with the impression of an organization that is closed, secretive, adverse to dissent, and focused on self-preservation.  The Force of 50 debacle points to an organization eager to project to the public a disaster response “photo-op” image that neither the organization or the amateur radio service supports or deserves.  Over the years I’ve personally seen other examples that support these two impressions but never dwelled on them as ARRL garnered my utmost respect as I felt that the League, despite its flaws, in general was taking amateur radio in the right direction.  I no longer have that confidence in the organization.

While I could end my diatribe with the paragraph above, I really want to explore or ask, what is the solution to “fixing” ARRL?  ARRL does a great job with publications and education, contesting, and lobbying the FCC.  Does the large and seemingly complicated hierarchal governance structure really serve a purpose today?  It appears that structure is geared more towards emergency communications initiatives than an effective membership feedback vehicle or advancing the radio art.  Is this structure the problem and ARRL needs to be transformed into more of a flat, responsive, grass-roots kind of organization?

This article was originally published at Radio Artisan.

AWA in Chippendale

I’ve always been fascinated by the vibrant early history of the radio industry in Australia and in my hometown, Sydney. I was browsing through some early photos on Flickr in the ABC’s Radio History series and I noticed this photo from 1922.

Transmission mast on the roof of AWA’s factory, Knox St Chippendale, Sydney, 1922. From a hessian bag draped studio on the top floor of this building, by means of this mast, AWA engineers Joe Reed and AF Vipan made experimental transmissions to the old AWA building at 97 Clarence St, June – Sept 1922 (original ABC caption).

I’ve been aware of so many sites of early radio manufacturers disappearing – including AWA’s gigantic campus at Ashfield – and ones closer to where I live in the inner west of the city. I didn’t realise AWA had a factory in Chippendale, or that it would be so close to a corner I travel through twice a day! But I suspected this was still there and it was – at least in 2016 when this Google Streetview image was snapped.
AWA’s Chippendale factory almost a century on.

There’s been quite a lot of development in this part of the very inner city and it’s now a choice place to live. It’s also a few steps from the newly refurbished Lansdowne Hotel.
I was also surprised by what I saw in the old photograph. It looks like the crane hook cable is dangling across the electric power line. It looks like the crane operator has just noticed it as the photo was being taken, or maybe it was because of having to pose for the photo that the cable is where it is. In any case, the test transmissions led to the beginnings of regular radio broadcasting in the city in 1923.

CW Ops Level 2 course

The last 8 weeks have seen me focus heavily on my CW with the CW Ops Academy. Around Christmas time I thought about signing up and then got off my back side and applied in early spring. The expectation was that I would be able to join in later on in the year as I’d understood it to be a busy course. Fortunately that was not the case.

So, with 8 weeks of CW laying ahead of me I’ve rather neglected many other things. But it has been worth every bit of effort. The course was run by Keith, G0HKC and had 3 other students. 2 from the UK and the other from Italy. The recommended 30 minutes of daily practice eluded me with all the usual distractions at work and home and I reckon I managed about 20 minutes on average. But even that saw my accuracy in receiving increase as well as the speed I could both receive and send. Additionally I can now head copy reasonably well up to around 20wpm which was impossible beforehand and we’ll above my expectations.

The ‘lessons’ were conducted over Skype twice a week for the full 8 weeks and gave us a chance to talk and compare notes as well as practice together. Keith was an excellent advisor and I will miss the lessons with him and my new CW friends. I have even dabbled in the CWT contests but the speeds are still a little daunting still.

Next up will be the level 3 after some more airtime. Look forward to sharing some slightly better CW from IO84. If you are looking to improve your CW then I can recommend the course entirely.


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