ROTA-Radio

If you’ve been following along during my journey to operate remotely from my recliner, you know I’ve been trying to get my ROTA station working for digital modes operation on HF. ROTA, if you’re just hearing about it, is Recliners on the Air. I enjoy operating digi modes from my living room recliner.

Yesterday, my journey finally ended in success. It’s a good thing, too; I almost gave up after getting some bad info from Google’s AI, Gemini. What should work according to both the Icom factory manuals and the AI simply didn’t. After several failed attempts, I backed up and punted, reverting to a tried-and-true method I’ve used for years with my original IC-7300. This time, using a new radio—the IC-7300Mk2—I was able to add a new operating position that, until yesterday, was just beyond my reach.

Here’s what success looks like to me, since I want to have the option of operating digital modes on the HF bands from portable locations away from my radio shack. Yesterday, I jumped in the golf cart with my dual-band HT in the cup holder and my M1 MacBook Air on the seat beside me and headed to the neighborhood lake. It’s about a half-mile from my house. On the way I listened to an Allstar net being broadcast from my Clearnode hotspot in the shack. I parked behind the clubhouse to check my Winlink messages while enjoying the relatively cool breeze coming off the lake.

The golf cart ride was my short break from caregiver breakfast duties. Sure, I could just pull out my iPhone and use RadioMail to check my Winlink messages using Telnet. But that’s cheating, and it defeats the purpose of having a high-priced HF rig in the shack! Before I left the house, I connected my Dell laptop to the IC-7300Mk2 using a simple USB-C cable and left them both working hard in the shack while I took off on the golf cart.

When I got to the water, I opened my MacBook, hit a couple of buttons, and pure magic happened. I was looking right at my shack computer’s desktop over my cellular internet connection from my iPhone. Right there from the seat of the golf cart, I fired up the digital toolbox:

• FLRig & FLDigi for snappy CAT control and some PSK-31
• JS8Call to check propagation and fire off a few heartbeats
• Winlink Express & VARA-HF to check in with my neighborhood CERT team leader and my Community Disaster Messenger partner in Texas

Everything worked flawlessly. I made a few quick JS8 contacts just because I could, and watched the radio respond half a mile away without a single hitch.

So, How Did We Actually Get There?

I’m going to spare you the exhausting, click-by-click technical blueprint in this post, but the secret sauce comes down to purposely violating the K.I.S.S. principle (keep it simple). If my Dell laptop can communicate directly with my Mk2 using a simple USB cable, why stop there? That’s too simple. Let’s add a remote computer to the mix (my Mac) and connect to the Dell over the Internet. There we go. Much better. Now, I’m following the “whatever’s more difficult” principle. Way more fun!

I completely abandoned Icom’s expensive legacy Remote Utility software and the finicky built-in network servers that the “experts” claim you need. Instead, the magic formula relies on three basic components:

1. The Local Shack Link: A high-quality USB-C cable connecting the Mk2 directly to the Dell shack PC, running all the heavy-lifting digital modems and digital software locally (VARA, VarAC, Winlink), right next to the radio hardware. Because these digital modes run natively on Windows, keeping that Dell in the shack works best. But since I prefer macOS, I brought my Mac into the mix, packed it out to the golf cart, and let the next piece of software bridge the gap.
2. The Encrypted Tunnel: A brilliant, free utility called Tailscale. It acts like a secure, private virtual extension cord between my remote laptop and the shack, instantly punching through firewalls and internet router blockages without any complex programming.
3. The Screen Bridge: Microsoft’s newly rebranded Windows App (the app formerly known as Remote Desktop, or RDP) running on my Mac to mirror the shack PC’s screen. Now, I sit at my Mac to operate my Dell. Perfect!

By keeping the digital applications and soundcard audio processing local to the shack hardware, the network only has to handle basic screen updates. That means zero audio dropouts, zero lag, and total stability.

(Oh, and for the record: to stop the USB cable from acting like an RF antenna, I used a ten-dollar pack of snap-on Amazon toroids. Don’t let anyone tell you that you need a hundred dollars’ worth of specialized chokes—the cheap ones work perfectly for this)

The Road Ahead: Digital, SSB, and CW Over the Internet

This is where the fun really begins. Now that the core remote architecture is proven and rock-solid, the training wheels are coming off.

Why stop at keyboard chatting from the golf cart? The grand design for this ROTA station is to evolve into a true, all-mode remote setup. I am already back in the shack experimenting with a “both-and” approach—resurrecting the Mk2’s physical Ethernet port alongside the USB connection to see if we can route bidirectional voice for SSB and high-speed keying for CW over this exact same Tailscale tunnel.

Imagine sitting at a coffee shop, a POTA park, or a recliner anywhere in the world with full, lag-free access to every single mode your shack radio can push out. That is where we are heading.

Why not just buy a FLEX Radio and do this the easy way? Simple answer: money. Lots of it. When all is said and done, I’ve proven to myself that you don’t need a multi-thousand-dollar specialized rig to break the boundaries of the shack. You just need the radio you already have, a couple of smart software bridges, and the willingness to tinker.

I’m writing up the exact menu configurations, power settings, and Tailscale setup steps as a separate, comprehensive companion guide for anyone who wants to replicate this exact setup without the two weeks of AI-induced headaches I had to endure. Keep an eye out for that deep dive coming soon!

There’s always something else to do in ham radio. The fun never ends!

73 – Paul, N4FTD

• Up Next: Stay tuned for the technical companion article breaking down the exact internal menu configurations for the Mk2, along with the preliminary results of my remote CW and SSB voice tests over the network!