Julian oh8stn
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oh8stn.bsky.social
Julian oh8stn
@oh8stn.bsky.social
140 followers 3 following 83 posts
Video creator, blogger, generally grumpy old jarhead
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Reposted by Julian oh8stn
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
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
Chameleon MPAS 2 0 HF 50MHZ PORTABLE HAM RADIO ANTENNA
YouTube video by Off-Grid Ham Radio OH8STN
youtu.be
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
Lab599 TX-500MP HF 50Mhz Portable Ham Radio
YouTube video by Off-Grid Ham Radio OH8STN
youtu.be
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
QRP Portable SSB TX-500MP & Chameleon MPAS
YouTube video by Off-Grid Ham Radio OH8STN
youtube.com
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
Winlink Disaster Email Lab599 TX500MP OH8STN
YouTube video by Off-Grid Ham Radio OH8STN
youtu.be
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
When QRP Is Not Enough: Lightweight HF Amplifier
YouTube video by Off-Grid Ham Radio OH8STN
youtu.be
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
Lab599 TX 500 Data Comms with LiNK500MP Audio Interface
YouTube video by Off-Grid Ham Radio OH8STN
youtu.be
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
Ham Radio with Microsoft Surface & Icom IC-705
YouTube video by Off-Grid Ham Radio OH8STN
youtu.be
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...
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.
oh8stn.org
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...
California wildfires: Starlink
Starlink supporting victims of the California wildfires
oh8stn.org
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.
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
DL4KA LiNK500 RPR TNC Audio Interface Quick Start
YouTube video by Off-Grid Ham Radio OH8STN
youtu.be
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
NATO Phonetic Alphabet: Mastered in Minutes!
YouTube video by Off-Grid Ham Radio OH8STN
youtu.be
Testing @Starlink Mini at 65° North with @PowerFilmSolar 100 watt solar panel for power. @m0iax thanks for helping me test 🙏
youtube.com/shorts/HkZJP...
Testing Starlink Mini at 65° North
YouTube video by Off-Grid Ham Radio OH8STN
youtube.com
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
Ultimate Off-Grid Solar Charging E-Bike Solution!
YouTube video by Off-Grid Ham Radio OH8STN
youtu.be
Indeed, it's nuts to go that far with the radio not to deliver full duplex as well. Yaesu had the capability decades ago.
Yeah I really don't know what they're thinking 😔