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Last polled May 19, 2026 01:00 UTC
Next poll May 20, 2026 01:36 UTC
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MyHamRadioStudy
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If you don’t have a ham radio license, or if you want to upgrade the license you have, there are many tools and study helps avaialble.

I recently saw a new one called MyHamRadioStudy. It’s free and helps you study the questions from the current FCC question pools for the Technician, General, and Extra exams. Here’s some additional free alternatives:

And a couple of paid options:

If you want to get your Technician license, a few hours of reading and studying using any of these tools can get you there.

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https://www.k0tfu.org/blog/2026/my-ham-radio-study
Salty Lizard 2026 Event Report
Each spring, the [Salty Lizard](https://utahgravelseries.com/saltylizard) gravel bike race brings hundreds of bikers to Utah's west desert. Most of the course has no cell service, so amateur radio operators provide communication support for the 3 aid stations and drive the SAG vehicles which roam the course. I volunteered to help out at this years event. Here's how it went and what I learned.
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Selfie in the desert showing Jared, truck, trailer, side by side, antenna mast, radios, table, and chair

Each spring, the Salty Lizard gravel bike race brings hundreds of cyclists to Utah’s west desert. Most of the course has no cell service, so amateur radio operators provide communication support for the 3 aid stations and drive the SAG vehicles which roam the course. I volunteered to help out at this years event, which was held on April 4, 2026.

The race course goes around and through the Silver Island Range, a small outcrop of rock in the middle of one of least hospitable places on earth. There are few plants, and fewer animals. The range lies within a 90 mile stretch between fresh water sources. If you don’t bring it, you don’t have it. The difference between the mountains and the surrounding salt flats is there’s more rock on the mountains, and less salt. For a ham radio operator, this unforgiving environment makes a great place to pressure test your skills and equipment.

Using the Incident Command System

Rex KC7SHL from the West Desert Amateur Radio Club organized the ham radio support for the event. He used a few of the forms from the Incident Command System (ICS) which is part of National Incident Management System (NIMS) from the United States Department of Homeland Security. We sometimes think of ICS as only being useful for managing large multi-agency disaster responses. But ICS was designed to be easily adapted to any size event, whether emergency or planned.

It was easy adapt the ICS for this bike race. In advance of the event, Rex sent out several iterations of the ICS 201 Incident Briefing form, which contained all the evolving details of the event. This form had an overview map, the GPS locations of the various aid stations, and the three routes different groups of riders would be following. He included the ICS 204 form so everyone was clear on what our assignments were. He also sent the ICS 205 with the radio frequencies we would use as part of the event. A few pages of filled out forms, easy to follow and understand, clearly communicated all the information we needed.

Salty Lizard 2026 ics form 201

I logged the key activities at my station using ICS form 214, starting when I checked in with Rex at the start/finish line the night before the event started. I logged when I arrived at my aid station, when I had my radio station set up and operational. Early the next morning before the first group of riders started, I logged when I established contact with Net Control. By the time the event was over, my activity log fit neatly on a single page.

Loadout

Here’s the key equipment I used during the event. Don’t look at this list and think that if you don’t have all this you can’t do an event. There are many events that require nothing more than a 5W handheld and an extra battery. Because of the location, terrain, and length of the event, I needed to bring quite a bit of stuff to operate my station.

  • Kenwood TM-V71 50W mobile radio
  • 25ft Max-Gain Systems push-up fiberglass mast
  • Diamond X50 antenna
  • LMR400 feed line
  • 40 Amp Hour LiFePO4 battery
  • 42W Powerfilm rollable solar panel
  • MPPT solar charge controller
  • Baofeng UV5R Mini
  • Wouxun KG-UV9PX

I also brought along the following backup gear:

  • Yaesu FTM500DR 50W mobile radio (it’s mounted in my truck but can easily be removed and pressed into service elsewhere)
  • Honda EU1000i generator
  • Diamond X300 antenna
  • Extra feed lines
  • Kenwood TH-D75

Radio setup for Aid Station 1: truck, trailer, side by side, antenna mast, radios, table, and chair

Lessons Learned

I had a few specific things I wanted to test on this event.

First, I wanted to run the Kenwood as a cross-band repeater, with one side of the radio connected to the repeater used for the event, and the other side on a simplex frequency. This setup allowed me to use a handheld during the race, which otherwise would not be possible because a handheld can not reach the repeater we used. This setup worked great, and I did all my comms using through the cross-band repeater using a handheld.

Second, running the Kenwood as a cross-band repeater materially increases the transmit duty cycle, because every signal received is also transmitted. I wanted to find out if my solar panel could keep up with the increased current load. In ideal solar conditions, not too hot, and full direct sun, my solar panel put as much power back into the battery as the radio drew out.

Tips and Tricks

If you decide to do an event, here’s some tips and tricks I’ve learned that might be helpful.

  1. Be self-sufficient. Bring everything you’ll need during the event, including water, food, shade, and a chair.

  2. Make a checklist of everything you need for an event. If it’s your first event consider a dry-run at a local park. Use your checklist to pack up everything you need for the event. Drive to the park, and set up your station and get on the air. You’ll quickly learn whether your equipment all works like you expected, and what you forgot to put on your checklist.

  3. Two is one and one is none. Have a backup for everything. One of the ham radio operators at this event couldn’t get his station working because he had a short in his feedline, and he didn’t have a second cable. My backup antenna saved me on this trip. I planned to use a Diamond X300, but when I went to attach it to the mast I found that one of the screws was missing. Had I not brought along a second antenna, I would have been out of commission.

  4. Bring ping or orange flagging tape to attach to the guy lines on your mast. You don’t want anyone tripping or running into them during the event.

  5. Shade is great for humans, and essential for equipment. I brought a small tarp to create shade for the battery and the Kenwood radio. If they sat in direct sun all day I’m sure they would have overheated.

  6. Get an inexpensive zipper binder to use for your log book. Hole punch all your materials for the event, including blank pages for your activity and communications log. This will keep the papers from blowing away in the breeze during the event.

  7. This event was long, I was on station from 6:45a to 2:35p. I went through several handheld batteries. If you are using a handheld in long events like this one, it’s a good idea to have a main power source (large battery, solar panels, generator) that you can recharge your handheld batteries from.

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https://www.k0tfu.org/blog/2026/salty-lizard-2026-event-report
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Zero Retries Digital Conference 2026
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Update: April 5, 2026: Zero Retries is back on substack at zeroretries.org.

Zero Retries has recently moved to a new publishing platform and domain. If you haven’t updated your email subscription or missed the transition, it’s easy to resubscribe to this outstanding free email newsletter.

Continuing the momentum from last year, Steve and Tina Stroh are planning the second annual Zero Retries Digital Conference on October 16, 2026 in San Ramon, CA. ZRDC will be held in the same city, and on the same day as the first day of Pacificon 2026. You can attend two great conferences in a single trip.

Tina is putting together the speakers and presentations, I can’t wait what she comes up with.

Save the date, registration will be open soon, and they expect tickets to go quickly.

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https://www.k0tfu.org/blog/2026/zero-retries-digital-conference-2026
Hamspot 5
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Hamspot 5

There are many digital modes in amater radio. The ones popular on handheld VHF/UHF radios include:

  • D-Star
  • DMR
  • System Fusion
  • NXDN
  • P25

To use these modes you typically need two things:

  • a handheld radio that supports the mode you want to use
  • a nearby repeater or reflector that supports the mode you want to use

There are many options for handheld radios. These repeaters are usually connected to the internet which enables communications with others around the world using that same mode. If there isn’t a repeater in your area that offers the digital mode you want to use, you are out of luck. Unless you have a hotspot.

A hotspot is a pocket sized low power repeater that connects to the internet and can communicate with your handheld using various digital modes. You can buy commercial devices, or build your own with a Raspberry Pi, radio boards, and open source software.

The Hamspot 5 by Collin K0NNK is a new option which gives you the flexibility and upgradability of your own Raspberry Pi based solution, without you having to do all the tinkering to get something that works.

This looks like a great device, with full duplex operation and a nice looking case. Runs from USB-C power, and connects to the internet via Ethernet or Wi-Fi.

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https://www.k0tfu.org/blog/2026/hamspot-5
LinHT Progress
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A couple months ago Wojciech Kaczmarski SP5WWP announced the LinHT project. These mad lads buy a Retevis C62 radio and replace all the circuit boards inside with their own. They aim to create an open-source hardware, Linux based, SDR handheld transceiver. Their first boot of the OS happened on August 18.

Last week, Wojciech, Andreas OE3ANC, and Vlastimil OK5VAS hit a major milestone: the radio now works as a complete M17 transceiver.

A few days later, Vlastimil submitted a PR for the first iteration of Revision B of the circuit boards, which includes:

  • a 5W amplifier
  • new audio codec
  • a redesigned power system which can charge from USB-C with simultaneous operation of the radio

Rev B is not yet ready for manufacturing, but I’ll be following closely and can’t wait to buy one.

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https://www.k0tfu.org/blog/2025/LinHT-progress
USB-C Power Delivery Power Supply
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Because the market for batteries to charge phones and laptops is so much larger than the market for batteries we 12V output, all the innovation in batteries is happening on batteries that have USB-C Power Delivery output. There are many vendors and lots of products with different characteristics. If you want to use these batteries with amateur radio gear that takes 12V, or that requires an unusual voltage (my UV-5R battery charger wants 10V input), you have to:

  • buy this cable from Adafruit which asks the USB-C device for 12V
  • connect it to a small buck converter or boost converter to get the voltage that you want
  • live with the losses and heat of the buck/boost converter

Now there is another option, the PocketPD. This small device allows you to choose the voltage you want, and it requests that voltage from the connected USB-C power source. You need a modern USB-C power source that supports the Programmable Power Supply mode from USB PD 3.0 and later. As you would expect, there are many USB-C power sources that comply with this standard.

Instead of bucking or boosting the voltage from USB-C, this device just asks the USB-C for exactly the voltage that you want. Very clever.

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https://www.k0tfu.org/blog/2025/USB-C-power-delivery-power-supply
Route 66 On The Air Special Event
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The Citrus Belt Amateur Radio Club in San Bernardino, CA organizes an annual Route 66 On The Air Special Event. This year’s event started on Sep 6 and runs through Sep 14. A bunch of clubs are operating stations along the route, from Santa Monica to Chicago, using special event call signs. There are several mobile operators, including one in a small plan who will be flying over the route. The club website has all the details, including lists of participating clubs and cities, schedules, frequencies, a log sheet, and the criteria and procedure to request a certificate or decal for participation in the event.

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https://www.k0tfu.org/blog/2025/route-66-on-the-air-special-event
Zero Retries
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Zero Retries is an independent newsletter promoting technological innovation in and adjacent to Amateur Radio. Published by Steve and Tina Stroh, it’s the weekly newsletter to read if you are what Steve calls a NewTechHam. NewTechHams wanna build handheld SDRs that can do DSTAR, AllStar, or any other digital mode with just a software update. NewTechHams are as comfortable with a Raspberry Pi as they are with a 2m HT. NewTechHams want to design repeaters that use digital timeslicing so a repeater doesn’t need a big duplexer or multiple frequencies. If any of this sounds interesting to you, you should be subscribed to this free email newsletter.

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https://www.k0tfu.org/blog/2025/zero-retries
The Communicator
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Surrey Amateur Radio Communications, in Surrey, B.C., Canada, publishes a bi-monthly (that’s every other month, not twice per month) periodical which I just discovered. It’s free, and it’s outstanding. Get new issues at https://ve7sar.blogspot.com/.

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https://www.k0tfu.org/blog/2025/the-communicator