Getting the messages through with ham radio
24,327
Published 2021-08-01
Hello Operators
In this episode of OH8STN Ham Radio, we take a look at circumventing ham radio jamming using digital mode communications. A couple of weeks ago, Alex W7HU posted a video showing what he says was jamming by the Cuban government, of the ham radio 40 meters band. After watching his video and understanding the type of communications needed to get news and information in and out of the country, I put this tutorial together. This vidro explains how ham radio digital modes can be used to circumvent jamming and interference on the amateur radio bands.
73
Julian #oh8stn HamRadio
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Watch the original Video from Alex: • Cuban Government jamming the Ham band...
00:00 Intro
00:51 Voice Comms & security
01:53 Signals Intelligence
02:24 Censorship
03:19 Asynchronous Data Comms
05:00 Circumventing jamming
06:50 Sending message Voice vs VaraHF
09:19 Final thoughts
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All Comments (21)
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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: youtu.be/g1VhCLDQDtc Watch the original Video from Alex: https://youtu.be/gVJS4skdtR8
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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.
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MORE of this content PLEASE! This type of thing is why I got into radio and I know I'm not alone.
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Timely and on point, Julian.
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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!
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Sometimes you have to be straight forward. Take folks by the hand. More of this please Julian! 73 KM4VHB Jason
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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 👍
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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.
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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.
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Superb, Sir. Absolutely spot-on. What you teach can be used by anyone, anywhere. Thank-You, for sharing…
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As always, a great video! Thank you very much for the work you put into creating your message.
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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
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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.
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Well done and explained.
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We love what you do. Thanks for this video. Its a light during dark times.
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You are spot on in implementation and theory. Keep it up!
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This is the excellent video de VR2SA
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Very well done sir! A perfect balance of describing the challenges of today with the tools and technologies we have as citizens. Bravo.
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Great video. The info is of great importance in many situations.
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Fantastic video, looks like RadioPrepper is the BustaRhymes of CW now! Hope that nickname sticks. Thank you for all your work on this.
