Julian oh8stn

Very grateful for all the kindness.
My books aren't perfect. They are not managed by some big publisher. You will certainly find mistakes. But they are honest.
www.amazon.com/author/julia...

The TX-500MP gets an upgrade.

Wireless audio interface and CAT over Bluetooth.
Integrated GNSS.
Multi-mode TNC.
No cable mess.

oh8stn.org/blog/2026/02...

#oh8stn #hamradio #lab599

Book Release: Grid-Down Emergency Communications Hello Operators. Grid-Down Emergency Communications is now available worldwide on Amazon in Kindle and print formats. It is also available directly via Patreon and Ko-fi as a print-ready PDF for th…

Grid-Down Emergency Communications is now available in print on Amazon. Focus: strategies, methods, and procedures for real grid-down comms. Soon, also via PileupDX (Sweden) and DIY599 (Oliver DL4KA) in Germany.

oh8stn.org/blog/2026/01...

73, Julian OH8STN

Grid-Down Emergency Communications: How To Stay Connected When the Grid Goes Down (OH8STN: Grid Down Emergency Communications Book 1) Grid-Down Emergency Communications: How To Stay Connected When the Grid Goes Down (OH8STN: Grid Down Emergency Communications Book 1) - Kindle edition by White, Julian. Download it once and read it on your Kindle device, PC, phones or tablets. Use features like bookmarks, note taking and highlighting while reading Grid-Down Emergency Communications: How To Stay Connected When the Grid Goes Down (OH8STN: Grid Down Emergency Communications Book 1).

Grid Down Emergency Communications is finally ready. The book is now available for pre-order on Amazon. Clear, practical strategies for keeping your network running when the grid fails.
Out Dec 24, 2025.
www.amazon.com/dp/B0G4JY2RLJ

#oh8stn #HamRadio #Prepper #EmergencyComms #SHTF

HF Radio Marksmanship & fFeldcraft YouTube video by Off-Grid Ham Radio OH8STN

Ham Radio, Marksmanship, and Fieldcraft. Pragmatic Cross Training for Preparedness.
youtu.be/jfLrER2OTbc

#oh8stn #hamradio #Preparedness

Cross-training: Communications, Fieldcraft, and Marksmanship Cross-training builds real resilience. This weekend combined HF communications, fieldcraft, and marksmanship in the swamps of Puolanka, Finland—proving that preparedness isn’t theory, it’s practice…

Cross-training builds real resilience. Last weekends combined HF communications, fieldcraft, and marksmanship in the swamps of Puolanka, Finland, eas an incredible experience. Preparedness isn’t theory!

oh8stn.org/blog/2025/10...
#oh8stn #hamradio #survival

The DJI Drone Ban: What They’re Not Saying Out Loud The U.S. calls DJI a security risk, yet no allies have banned their drones. Lawmakers funded by defense interests push the ban while U.S. and Israeli firms stand to profit. This isn’t about safety—…

The DJI Drone Ban: Everything They're Not Telling You!

oh8stn.org/blog/2025/10...
#dji #drones #hamradio #oh8stn

Off-Grid Power for Emergency Communications.
www.amazon.com/author/julia...
#oh8stn #hamradio #lifepo4 #solarpower

60th Melbourne Hamfest (Florida, USA) Begin forwared message: Dear Mr. Julian,I hope this note finds you well. I’m reaching out as a fellow ham and a fan of your YouTube channel. Our club, the Platinum Coast Amateur Radio Society (PCAR…

Melbourne Florida Hamfest
oh8stn.org/blog/2025/09...
#hamradio #oh8stn

Off-Grid Power for Emergency Communications.
www.amazon.com/author/julia...
#oh8stn #hamradio #lifepo4 #solarpower

The Lab599 TX-500MP covers 160–6m (TX/RX), including CB. One rugged radio for local, regional, and global comms all without repeaters or infrastructure.
youtu.be/oQKY1BZIOwY
#HamRadio #CBRadio #TX500MP #OH8STN

Chameleon MPAS 2 0 HF 50MHZ PORTABLE HAM RADIO ANTENNA YouTube video by Off-Grid Ham Radio OH8STN

QRP Portable field test of the Chameleon MPAS 2.0 portable ham radio antenna from Hailuoto Island KP24iX. POTA + WWFF activation with SSB & FT8 using the Lab599 TX-500MP.

🎥 Watch here:
youtu.be/Ee8__nY4NGM

#HamRadio #oh8stn #POTA #WWFF #PortableHamRadio

IC-7300MK2: Why a 0.7 A Receive Draw Actually Matters Off-Grid I just pre-ordered the new Icom IC-7300MK2. Its reduced current draw finally makes this legendary HF rig off-grid friendly!

New blogpost up: Icom IC-7300MK2 — Off-Grid Friendly
Why a 23% drop in receive current makes all the difference for grid-down comms.

Full post: oh8stn.org/blog/2025/09...
#hamradio #icom £ic7300mk2

Lab599 TX-500MP HF 50Mhz Portable Ham Radio YouTube video by Off-Grid Ham Radio OH8STN

Finally, an HF radio for preppers. The Lab599 TX-500MP is a rugged 160–6m, 10W manpack radio the community is talking about. Join me as I share my experience with this man-portable QRP rig.

youtu.be/oQKY1BZIOwY
#hamradio #qrp

QRP Portable SSB TX-500MP & Chameleon MPAS YouTube video by Off-Grid Ham Radio OH8STN

QRP portable today with the Lab599 TX-500MP. Ran 10w SSB into the Chameleon MPAS vertical to work UK POTA station 2E0JJS (S5). A little repeat on phonetics, and we had solid copy.

youtube.com/shorts/tVx4A...

My books: www.amazon.com/author/julia...

#hamradio #qrp #oh8stn

Winlink Disaster Email Lab599 TX500MP OH8STN YouTube video by Off-Grid Ham Radio OH8STN

My first Winlink session with the Lab599 TX-500MP & LiNK500MP TNC on 40m band. Connected 760 km away with just 10W!.
📺 Watch:
youtu.be/8B5sGxHY7tY
#Winlink #TX500MP #OH8STN #HamRadio

When QRP Is Not Enough: Lightweight HF Amplifier YouTube video by Off-Grid Ham Radio OH8STN

New video out on YouTube. Topic is QRP!
QRP is efficient, portable, & powerful, but sometimes, condx demand more. In this vid, I show how a compact HF amp helped complete a failed Winlink session—without ditching my low-power strategy.
youtu.be/x77GsFs2qZ4
73
Julian oh8stn
#oh8stn #hamradio #qrp

Lab599 TX 500 Data Comms with LiNK500MP Audio Interface YouTube video by Off-Grid Ham Radio OH8STN

Just tested the LiNK500MP for the Lab599 TX-500MP. It adds RPR, audio interface for data modes, GPS, 12V input, Bluetooth LE, and mic passthrough.
🎥 Watch on YT: youtu.be/8ZWeLTq6sUE?...
More info: diy599.net

💪 Support my work: www.amazon.com/author/julia...
#HamRadio #TX500MP

Ham Radio with Microsoft Surface & Icom IC-705 YouTube video by Off-Grid Ham Radio OH8STN

Now that the Yaesu FTX-1 is out, this might be a good time to take a look at how data comms work with the Icom IC-705 and a Microsoft Surface Go tablet.
With the IC-705, the wires are optional!
youtu.be/r22xilag_9A?...

#oh8stn #icom #ic705 #hamradio

Emergency Winlink Gateway A field-tested look at the Emergency Winlink Gateway—an off-grid, low-power HF email system built for rapid deployment during real-world disasters.

Hello Operators
There is a new blog post up on the oh8stn blog.
If it's not too much to ask, please let me know what you think about the concept. Also if you think I should expand this into a downloadable guide.
73
Julian oh8stn
Blog: oh8stn.org/blog/2025/07...

California wildfires: Starlink Starlink supporting victims of the California wildfires

New post up. Starlink now supporting the California Wildfires with Starlink internet, and direct to cell service. Read more at oh8stn.org/blog/2025/01...

RadioMail will soon release an update supporting this device. Short answer: Yes, you will be able to use this device to connect your HF radio to radio mail for RPR Winlinksessions. Unfortunately, Vara doesn't support iOS,,but RadioMail and this device will support RPR and your HF Radio.

DL4KA LiNK500 RPR TNC Audio Interface Quick Start YouTube video by Off-Grid Ham Radio OH8STN

LiNK500 is very much like an SCS Tracker. The LiNK500 can act as a standalone RPR tracker, Winlink RPR TNC, HF APRS TNC with Android, IPhone, iPad, Windows or Linux, and it can act as an audio device for FT8, JS8Call, Vara HF or any AFSK data mode.

youtu.be/I_olnGwwuno

Merry Christmas Book Release YouTube video by Off-Grid Ham Radio OH8STN

New video and file drop.
Grid Down Communications
youtu.be/tdrrCoHJhbo?...

2 New Chapters Dropped: Grid Down EMCOMM Hello Operators.Dropped two new sections of the book Grid Down Emergency Communications today. If you have already purchased the ebook, there is nothing to buy. You’ll find the latest files i…

2 new chapters posted.
Grid Down Emergency Communications.
oh8stn.org/blog/2024/12...
#hamradio

NATO Phonetic Alphabet: Mastered in Minutes! YouTube video by Off-Grid Ham Radio OH8STN

So many ham radio newcomers coming to the channel. Learning NATO alphabet and numbers is high on the requested list.
I suspect heightened tensions between NATO & RUS may also have people worried.
73
Julian oh8stn
Share url: youtu.be/ULxwgAreRyw

SpaceX Starlink Disaster Grid Down Emergency Communications YouTube video by Off-Grid Ham Radio OH8STN

Testing #starlink for grid down disaster communications. Join me as I field test Starlink to Starlink with Mark @M0IAX
youtu.be/JOoXAtxQ-Hg

Testing Starlink Mini at 65° North YouTube video by Off-Grid Ham Radio OH8STN

Testing @Starlink Mini at 65° North with @PowerFilmSolar 100 watt solar panel for power. @m0iax thanks for helping me test 🙏
youtube.com/shorts/HkZJP...

Ultimate Off-Grid Solar Charging E-Bike Solution! YouTube video by Off-Grid Ham Radio OH8STN

This video demonstrates how and why I charge my ebike off grid, using solar power at home, and in the field, for my off grid ham radio adventures.
73
Julian oh8stn
youtu.be/sVArV6lEpKw

Indeed, it's nuts to go that far with the radio not to deliver full duplex as well. Yaesu had the capability decades ago.