Please watch the entire video before deciding whether or not it's "political". There's very good practical information here! 73 Julian oh8stn Share this video: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-g1VhCLDQDtc.html Watch the original Video from Alex: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-gVJS4skdtR8.html
Julian, it is a more procedual video and has nothing to do with politics. A while ago, RRI has published a presentation with similar content, how to secure operate in the aftermath of a disaster. Keep on your way.
This basic outline of how to send out information isn't just important when people are looking for you, but also a great reminder that digital communications can relay more information in a shorter amount of time. When a person has to vacate an area due to fires/earthquakes/volcanic events/whatever seconds count, and being able to transmit a message to friends and family about your situation is critical. Thanks for reminding us of this fact.
And thank you Michael for this comment. Sometimes it's simply not enough to post a tutorial, the additional context is often critical thanks for the kindness and the reminder. It's very much appreciated. 73 Julian oh8stn
Fascinating. I actually never got into digital comms like this. I tried it a time or two, but I t just never really interested me much. Now I see a much more practical application and will start looking at these options more closely. I’m not sure where to start, but start I shall. Thanks for the motivation, Julian. Thanks very much!
This is an excellent comment. You've understood the intent of the video, coming out the other side with the intended outcome. Absolutely outstanding! 73 Julian oh8stn
*On the other hand, if we stayed on the odd channels, switched every time and started in the basement, that'd work too, wouldn't it?* 😎 Great video Julian 👍
You make excellent points. There is far more that needs to be discussed when it comes to dealing with sophisticated "actors" wishing to disrupt communications, particularly if they are willing to resort to extreme and possibly illegal methods.
4m15s but the difficulty is always on the receivers side. If the operator receiving can't copy 100%, the message has to be sent again in part or in its entirety. Awesome work. Love your pragmatic approach to teaching.
Agreed. This is the key benefit of some data modes. Even with resends, analog is never going to be faster than data when sending something substantial. Thanks for the comment and kindness. It's fuel for the fire. 73 Julian oh8stn
Thanks for the video Julian! Political? Jamming may not always be intentional - a power generator in the neighborhood, city noise, bands are overloaded, noise is high on the band you want to use etc. - all principals described will help you also to overcome this as well. Vy 73, Uli dd5uk
Thanks and I certainly hope so. Sometimes the most difficult part of making tutorials is getting the viewer to imagine how to apply the lesson to real life. Hopefully this one was on point. 73 Julian oh8stn
This is good for military and emergency situations. I have worked in military, without modern technology, and now emergency conditions. Being able to get information out with guaranteed reception is the prime need.
I'm a CW nut, primarily because I'm an ultra-portable operator who needs to shave ounces off my pack weight to be as light as possible, and CW-only rigs will always offer the lightest possible configuration. But while CW has some advantages against jamming due to its small bandwidth, in a critical situation where jamming is present I would absolutely defer to JS8Call and Winlink. Not only are they going to be faster, but their algos are mathematically designed to account for noise (error correction, signal recognition, etc.). Great video and excellent points raised.
Excellent video! You did a thorough job of showing how one can use readily available radio tools to defeat an adversary with more money and resources. Love the WWII reference....just like partisans working behind the front sharing intel. Your content is always interesting and very relevant.
Good video! In addition to using QRP, a NVIS set up will make triangulation more difficult. The expected 300-mile radius would be effective in the case of Cuba as they are but 90 miles from Florida.
I’d say it’s worth setting up a permanent NVIS ant. either at your QTH or in the field somewhere accessible. I’ve got one on the tallest hill in town, thanks to my grandparents and their address. 5-9 anywhere in the county. Wire is cheap, insulators are everywhere, make a few antennas and strew them around the countryside.
I've been on the other side of this. When I was in the US Army I was a SigInt interceptor (East German). Back then (1990) with the push of a button I could get the grid coordinates for a transmitter's location in less than a minute down to (really close...can't say how close...it's secret). We'd go on training exercises and jam with music. We called ourselves, KPIG, "K-Pig Radio - the VOICE of Hohenfels!" (training area we used to go to waaaaay too much).
I could be incorrect, but triangulation is different when tracking a vertically polarized antenna VS a a horizontal one. More study is required, but there is a difference in traceability.
If the signal can be picked up by a receiving station then a Line of Bearing (LOB) can be determined. Two LOBs gives you a "cut", accurate to kilometer or so. Three LOBs gives you a "fix". That's accurate enough to drop steel on you. I too may be incorrect; but polarization doesn't factor into it. If the receiving station(s) can hear you; they've got you.
First off, great video! This was the primary reason I got into HAM radio. Old technologies that still works today. Second, who are the angry people who down vote something like this? 73.
You'll get there. I have a new video coming up on a new piece of software which might make it easier. It's not quite there yet so the video is a bit delayed.
This is an excellent video Julian! Very practical for many situations including emergency communications. I very much appreciate your clear explanations and demos!
Great video, Julian. Conceptually, I've been in favor of JS8 because it can be run end-to-end 100% off-grid, and because of its weak signal capability. But it' takes much longer to send a message via JS8 than it does via Winlink. Also, if I remember correctly (it's been over a year since I used JS8), all of the stations in a JS8 network need to hang out for a long time on a fixed slice of the selected band. And, as long as the internet is available, Winlink provides the hit-and-run advantage you discuss here. Would it be possible for you to do a similar video on the advantages and disadvantages of JS8 in a jamming scenario? Maybe you've already done or plan to do this. My suspicion is that in certain scenarios, the ham bands might be jammed in their entirety. Hopefully, I overestimate the feasibility of doing this.
Excellent feedback and questions. JS8 offers different advantages than winlink, but it's just as valuable as a tool. Definitely plan on covering it 👍 73 Julian oh8stn
Busta Rhymes had me laughing in my chair for a good minute! Good stuff OH8STN! As always, great training videos. Saving all of your vids locally due to Yankee Tang0's shenanigans.. Any EMP proofing comms kit vids coming?
This sure seems even more important than it did a year ago. 14 yr Daughter is now a general, 11-year-old daughter is a technician now for 2 weeks, taking General early next week. 14yr and I are learning and practicing CW, but we are using digital Coms as well. No doubt digital is way faster, but CW is more fun for now, while I can still get coffee, and at least fewer people are shooting at me. LOL I think they can both find a place in the bag of tricks. :) As always Love the vids!
@@OH8STN My daughters shot idpa, on the weekend, learned Linux more, this evening learned HVAC vaccum evacuation techniques. HF CW practice, followed by more Rig Stick Pro tuning videos, etc. Their education is far wider than most children. Experience in a lot off different things. We're on our own. Entitlements end when currencies do.
Hopefully so. Too many viewers getting offended and not seeing the actual message of the tutorial. Its ok though. I'll focus on those who want to learn and share. Thanks for the comment. It is fuel for the fire! 73 Julian oh8stn
I got an IC-705 and primarily been using it on HF (SSB), 2m SSB and FM simplex along with local repeaters, as well as D-Star. I purchased a new laptop a couple months ago and been wanting to get the most capabilities out of the radio. Been trying to learn how to use FT8, but that's still a working progress. What I got from this video is that adversaries, 3rd party actors and band conditions isn't always on the amateur radio operator's side. One must use whatever mode and/mode to get out, especially in an emergency situation. 73, W4ISB
Another great video. Hope to have a qso with u on js8 instead of just swapping HB's (if my work schedule and propagation allow it). Stay safe, 73! N2SCD
Hi Julian very good video and right to the point. And no it wasn’t political to me it’s just how to get messages out. Your Content that you put out are very valuable. WD5ENH Steve
:)... I heard the Cuban dissidents employee home-brew radios which only operate on 40 meters. The government has an edge - they know what frequencies to jam Your go kit would probably make the dissidents turn green with envy. Such items if shipped to Cuba, would only be confiscated.
Thanks and agreed. Sat comms is always a nice fallback method. Unfortunately it also has an off switch which the end user cant control. Definately worthwhile if off grid with a broken leg, ankle, ... and need to call for help. I really wish Starlink were more portable.
Julian - you are the best Ham! Thank you. We discussed how great your teachings are at the local Ham club this week. One question - could a larger HF rig like a Yaesu FT10 be configured to use power more slowly like an Icom 705? If your strategy is "bug in", how would you handle this if you had to keep your shack rig going as long as possible?
Thanks for the kindness. Unfortunately, no. None of the QRO rigs available today can be "turned down" to a less current hungry state. Even on RX, the consumption is too high. On TX, the power modules are designed for cheap mass production, rather than the highest efficiency. This is the reason for using efficient QRP rigs with an efficient amplifier. It's expensive but efficient. My home station is a 705 with pa500e amp. Total rx current under 300ma. Total tx current at 100w, 10 amps. This is compared to my ft891, which used 1.2 amps rx, and ~20 amps tx at 100w. Great question, not good answers. 73 Julian oh8stn
@@OH8STN - Wow Julian - Excellent detail. Thank you very much. The guidance is priceless. I'm a newer Ham so you have been a great Elmer! You're helping a lot of people out there. The funny thing about QRP is that I hear the guys at the club that say it's very frustrating, but they love it. 73
Winlink is an asynchronous mode. That means you don't have to be on the radio at the same time to send or receive the messages. Like Lee said, PSK is also very much slower. It is good in a keyboard to keyboard chat in real time, but can't do what winlink does with email, or asynchronous messaging. 73 Julian oh8stn
on the grounds that what is "right" is not always legal, and what is "legal" is not always right.... there are tools that can encrypt text messages, they even break it up into chunks of txt as to not overload the radio.
Now stuff that narrow bandwidth TX into a hefty LDMOS amp and you're probably cutting through even the most determined jamming setup. They're waisting power jamming a broad spectrum. Fire the laser.
Can't stop the signal, Mal. Everything goes somewhere, and I go everywhere. Source: Serenity (film). Considering the adaptability and versatility of amateur (or other) communications and its many modes, the idea of jamming is almost laughable. And then... there's running FT4 via linear satellites too - KL1JP (Alaska).
Julian, I’m intrigued by your videos and new to jam radio. I’m wanting to get my equipment setup for portable data and off grid like you have. Money isn’t really and object but I’m technologically inept. Any suggestions?
The starting point is always figuring out what you want ham radio to do for you. When you figure that out, it is pretty easy to get started, with all the tutorials on RU-vid. Ask lots of questions, and do your gear research. Whatever gear you decide should support your primary objective in ham radio. I hope this helps. 73 Julian oh8stn
Thanks for this video! Have you tested VarAC before? Its a chat mode similar to JS8Call but using the VARA modem/protocol. It looks rather fascinating. 73, KE8GAH
@@OH8STN Oh awesome! I just found out about it and honestly It is incredibly exciting. The VaraHF modem license already has been a great investment for me, only modem I got Winlink reliably working on..that doesn't require me buying a PACTOR modem. I was going to test VarAC today after I checked Winlink..but sadly my radio broke. So unable to test for now.
I heard that equipment like this is hard to come by in some places, and that many people have built their own rigs with old parts, so wondering if this is even an option?
It is possible to build your own equipment however, I haven't seen anyone build something that small and portable yet. There are quite a few different options on the market in kit form and ready-made for all types of budgets. The computer can be whatever you happen to have including an Android phone or tablet. Anyway, it's an option but perhaps not the easiest option.
@@OH8STN agreed! although i the current situation, folks in less open-market places likely don't have access to kits and similar consumer products. This seems like a good workaround for jamming if you aren't relying on 40m and old tube radios 👍🏻
@@OH8STN Julian - take a look at the µBITX radio for one example. It's a 'kit' only in that the end user connects wires and puts it into the case. It's 7x7x3 inches, 10 W out on 40 from 13.8V, and about 20 W feeding the finals 24 V. $200 It can be built with parts available just about anywhere for about $50. Transistors are all common 2N3904, finals are IRF510 FETs less than $1 each. Don't need a PCB, don't need surface mount parts. The radio was designed to get 'the common man' on the air in India for a price they can afford.
@Tari NZ - you're right - many non-industrialized countries where professionals bring home $20 a month do build from a couple of indigenous designs to get on the air with their first license class. Those same initial licenses are limited to 10 W and 'clearly readable' voice (SSB or DSB) as well.
