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RAC Ontario Sections Bull...
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LoRa Tbeam and Meshtastic |
Posted by: Guest - 2021-11-01, 14:35:51 - Forum: Projects, Kits
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The video I've shared below is of special interest to me because I see vast potential for this type of LoRa device in Emergency Communications. To avoid confusion I need to make a couple of important points first.
1) LoRa devices are specifically designed to automatically create a mesh network. The Meshtastic software when flashed on a LoRa Tbeam can be directly accessed using a cell phone connected to the device wirelessly using WiFi. This then allows text messages to be sent via one LoRa device to another, and so then to another cell phone running Meshstatic software.
2) The range of a Tbeam device can be dramatically increased with a better antenna. In this test the max range was roughly 2 miles. However a respectable antenna will increase this to up to 10 miles. As with all line of sight radios, increasing elevation also allows an increase in range. Experiments I have seen routinely get 30 miles between devices. Without putting fine point on this, that obviously means that someone with a LoRa device in one location, connected to another LoRa device at another location, 30 miles distant, could send a text message using their phone and Meshtastic software to another party with a second LoRa device, and running Meshtastic software.
3) LoRa Tbeams with Meshtastic software automatically create a self-discovery / self-healing network. Each device running Meshtastic software will be added to the net automatically. The net will then self-heal when devices leave the net. Meshtastic calculates TX and RX pathways automatically and so no additional configuration is needed to create a mesh network.
4) Meshtastic is free open source software. Tbeams are cheap and easily availble. As seen in the video, waterproof enclosures can be pretty basic, however files to make better quality enclosures are available for 3D printers. Solar charge controllers and solar panels can be added making such devices stand alone nodes.
5) The value of having community based text based mesh-networks, available to anyone with a cell phone, is perhaps a relative point. However I feel this kind of network could be very useful in any community during a real emergency situation. This is the neighbors helping neighbors concept made visible with hardware and software. Combined with the long distance capabilities of HAM radio the potential to provide community based emergency communications is very real and I think achievable. This would be a matter of having enough, solar powered Tbeam devices in mesh-nets across a community.
6) Of special interest to me was the idea of connecting a LoRa TBeam device to a repeater controller to allow for remote access. There are other potential uses for such connections which are worth of consideration.
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Net Report 27 Oct 2021 |
Posted by: Tom VA3TS - 2021-10-28, 18:34:25 - Forum: Nets HF , VHF
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Topic --are you ready for the upcoming SET. An excellent discussion on preparations for the simulated emergency test Oct30th. Grey and Bruce EC's were on air to set up the scenario and answer questions. Thanks to all for participating.
NCS VA3TS Tom
VHF Checkins 14
KO4DXQ Bob
9Z4DX Bertrand
VE3MIO Maureen
VE3GIO Larry
VE3VCG Marvin
VA3KOT John
VA3GUF Frank
VE3FP Adam
VE3WI Dave
VE3RQY Greg
VE3OZW Richard
VE3BQM Bernie
VE3DGY Doug
VA3EAC Janet
HF Checkins 7
VE3VCG Marvin
VE3GIO Larry
VE3BQM Bernie
VA3KOT John
VE3FP Adam
VE3RQY Greg
VE3OZW Richard
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Cyber Attacks During an Emergency Event |
Posted by: Guest - 2021-10-28, 14:01:50 - Forum: Emergency Preparedness
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This is an excellent article about a topic rarely discussed. However, in reading it you can see that this is a matter of genuine concern to emergency planners and emergency managers. As we all know to well Ransomware attacks have disrupted the normal operation of various infrastructure systems within the last 24 months. It is entirely plausible, even likely that such events will happen again in the future. This article makes the point that cyber criminals could take advantage of any disaster situation to create another layer of complexity to the situation. This then would make the job of anyone dealing with the crisis more difficult. It could in fact endanger those in greatest need of help.
At the risk of being seen as the profit of doom, I continue to point to such matters as clear and present threats to all of us. Having said that, I also believe that simply by seeing such potential problems we can be better prepared to deal with them should they come to pass. When I think of what Emergency Communications really means, I think of people, not radio gear. For me radio communication is just another tool to use to help each other in times of need.
I really enjoy HAM Radio as a hobby. But I also see the practical potential for using it for the benefit of family, friends, neighbors and our communities in general in a time of need. This is why I accepted the role of ACS Emergency Coordinator for Bruce County.
We live in a time of great uncertainty. The world is a complex and connected place today. Even here in Bruce County, were emergencies are rare, various events in distance places, can create unexpected problems which were largely unknown in the past. For that reason I think taking note of articles such as the one I'm sharing here is not only prudent but wise.
Cyber Attacks During an Emergency Event
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Net Report 20 October 2021 |
Posted by: VA3KOT John - 2021-10-20, 19:22:09 - Forum: Nets HF , VHF
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Topic: Will you be participating in October's SET?
VA3KOT John Owen Sound VHF NCS
KO4DXQ Bob Tennessee
VE3DGY Doug Annan
VE3BQM Bernie Owen Sound
VE3GIO Larry Woodstock
VE3MIO Maureen Wiarton
VE3WI Dave Port Elgin
VE3UJK John Tiny
VA3KOT John Owen Sound HF NCS 3783KHz
VE3GIO Larry Woodstock
VE3FJN Colin Hamilton
VE3BQM Bernie Owen Sound
VE3DGY Doug Annan
VE3IJD Gene Honey Harbour
VE3IDS Don Owen Sound
VE3MIO Maureen Wiarton
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