- 28
- 865 126
sn0ren
Denmark
Registrace 25. 07. 2023
Electronics, wireless communication, ham radio, and other stuff I find interesting.
Meshtastic Problems - And Another Off Grid Messaging System
Meshtastic allows you to send off grid messages between devices without having to use the internet or a cellular connection. But Meshtastic isn't perfect, especially not when used for large mesh networks. However there exists a different, older and more mature project, that does basically the same thing as Meshtastic, but tackles some of the issues differently.
Meshtastic devices used in this video:
Lilygo T-Deck
Lilygo T-Beam
Heltec v3
APRS Radios shown in this video are:
Kenwood TH-D72
Anytone AT-D878UV Plus
Cable for connecting Quansheng UV-K5(8) and other radios to a smartphone for APRS use:
baofengtech.com/product/aprs-k1/
APRS software used on the phone is APRSDroid
0:00 Intro
0:50 I am standing in a field
1:42 What are License Free ISM bands?
4:14 What is LoRa - Long Range?
5:27 What is Meshtastic?
6:20 Flashing Mesthastic Firmware and initial setup
7:20 Use cases for Meshtastic
9:00 RAK Wisblock as a solar powered repeater
9:43 The problems with large Meshtastic networks
10:33 Lilygo T-Deck as standalone Meshtastic device
11:24 The problem of congestion and duty cycles
12:43 The problem of low power output limits
14:03 The next step: APRS
19:20 What is Amateur Radio?
21:16 Outro
Meshtastic devices used in this video:
Lilygo T-Deck
Lilygo T-Beam
Heltec v3
APRS Radios shown in this video are:
Kenwood TH-D72
Anytone AT-D878UV Plus
Cable for connecting Quansheng UV-K5(8) and other radios to a smartphone for APRS use:
baofengtech.com/product/aprs-k1/
APRS software used on the phone is APRSDroid
0:00 Intro
0:50 I am standing in a field
1:42 What are License Free ISM bands?
4:14 What is LoRa - Long Range?
5:27 What is Meshtastic?
6:20 Flashing Mesthastic Firmware and initial setup
7:20 Use cases for Meshtastic
9:00 RAK Wisblock as a solar powered repeater
9:43 The problems with large Meshtastic networks
10:33 Lilygo T-Deck as standalone Meshtastic device
11:24 The problem of congestion and duty cycles
12:43 The problem of low power output limits
14:03 The next step: APRS
19:20 What is Amateur Radio?
21:16 Outro
zhlédnutí: 21 773
Video
The best antenna for HackRF Portapack (and Flipper Zero, Meshtastic, Quansheng, RTLSDR, etc.)
zhlédnutí 10KPřed měsícem
There is an essential gadget that you will want to get, to get the best antenna performance. But first we need to cover a bit of antenna theory, before we can answer the question of what antenna that is the best one for your HackRF Portapack, or Flipper Zero SubGHZ module, or Meshtastic, Quansheng UV-K5, RTLSDR or other radio devices. This video is covering the bare minimum basics of antenna th...
I Broke My HackRF Portapack! Here's How Not to
zhlédnutí 14KPřed 2 měsíci
The HackRF Portapack is a handheld SDR transceiver, capable of manipulating radio waves, decoding digital signals and giving you an insight into the invisible electromagnetic world around us. It does however suffer from a huge flaw, that can render it apparently completely unable of receiving anything. Also learn how to use the gains settings LNA, VGA and Amp on your HackRF Portapack. The Cliff...
HackRF Portapack / SD Card Setup / Firmware Update / DFU Recovery
zhlédnutí 14KPřed 3 měsíci
The HackRF Portapack is an impressive handheld SDR transceiver, capable of emulating wireless remotes, tracking aeroplanes, decoding wireless data, and a lot more. If you’ve just received your Portapack you need to do a few things to take full advantage of its capabilities. Or if you’re having problems with your device this video might be helpful. This video is for those of you who need to setu...
If you don't like 3D printers get this one / Bambu Lab P1S
zhlédnutí 7KPřed 3 měsíci
3D printing used to be about building, calibrating and repairing these erratic and slow machines while learning from their inevitable countless failures. But that is now a thing of the past. The new generation of 3D printers are almost as much of a dependant appliance as the regular old 2D printer. This is the Bambu Lab P1S. It is a 3D printer, that makes 3D printing about the end result and no...
Should you get a Talkpod a36plus?
zhlédnutí 5KPřed 3 měsíci
If you’re interested in wireless communication, like HackRF, Flipper Zero or Meshtastic you might be thinking about getting into amateur radio, or at least you should be. While you’re thinking, getting a handheld radio is a cheap and great way of dipping your toes into the hobby. But what are handheld radios used for? How does a radio repeater work? And how does the Talkpod a36plus compare to t...
WiFi Pentesting Just Became Easy / Angry Oxide
zhlédnutí 55KPřed 4 měsíci
Angry Oxide is a new easy WiFi penetration testing tool that collects WiFi handshakes, either passively or through various clever and fully autonomous manipulation methods. The methods used are similar to those found in a Pwnagotchi, a cute DIY WiFi eating digital pet that will even detect Flipper Zero's. But Angry Oxide attempts to be a bit more sneaky than the blunt and aggressive deauthentic...
The Most Hackable Radio / Quansheng UV-K5(8) / UV-K6 / UV-K5
zhlédnutí 77KPřed 4 měsíci
With a custom firmware this radio can send off grid messages at very long distances and receive a far wider frequency range than intended. This is the Quansheng UV-K5(8). It is an extremely cheap dual band handheld radio, but unlike similar radios before it, this might be the most hackable radio. Update: There is an even better firmware available by kamilsss655, which has all the same features ...
WiFi Pentesting In Your Pocket / ESP32 Marauder
zhlédnutí 34KPřed 5 měsíci
ESP32 Marauder is a wifi penetration firmware that runs on Flipper Zero modules and stand alone ESP32 devices such as this Marauder v6 from justcallmekoko. It exploits the built in WiFi and Bluetooth capabilities of the ESP32 chip and gives you access to features such as spamming BLE messages, emulating WiFi access points and sniffing handshake packets. FOR EDUCATIONAL PURPOSES ONLY. DO NOT USE...
The Cheapest Radio Receiver For Beginners / RTLSDR v4
zhlédnutí 55KPřed 5 měsíci
The Cheapest Radio Receiver For Beginners / RTLSDR v4
How can I communicate with my other people during hikes, when the radio signals get blocked by trees, hills and mountains? Do I have to inflate a baloon to make this work? 😀
Placing a node high up that everyone has line of sight with would solve it, yes.
very cool product !!
我的v4版本的RTLSDR的usbA接口已经变形了，它似乎比其他的USBA接口长一点，并且自重很大，USBA口没法提供足够的机械强度，我想自行绘制一个pcb转接版，将usbA装换为usbA 或着直接焊接上连接线
Had the Radarbox24 yellow VHF stick for a while and never intercepted a whistles! No assistance by RD24.
Currently trying to make one with my pi 4.
What hardware do I need
Excellent, thank you.
Fake
Start with a proper receiver like an RCA AR88D, yes it's heavy but it will do a proper job. Plugging a device into a USB port on a PC will teach you nothing useful. To receive anything useful you MUST have a decent antenna which a proper receiver hill have provision for.
So it's APRS for messaging?
Man i can't find a knob that'll glow anywhere, theyre all opaque and im too poor for 3d printing 😂 its frustrating
Thanks 👍
This might be the best ‘antennas for newbs’ video I’ve run across. You explain a lot very concisely. Nice job.
i think the menu is unnecessarily abbreviated because the basic programming/firmware for all these chinese radios is basically the same, they are too lazy or dont know how to reformat the text
How long did you have to extend your antenna for that transmission? Jw.
Quarter wavelength. For the FM broadcast band (about 3m long) and a monopole antenna, it would be 75cm long to get a minimum SWR
Can I program the Quansheng UV-K5 to keep within the legal limits? There are a few stories, it may not be within EU standards. Is this also your experience that it can't be used with -60dB, only stronger? Very interesting video! Thanks!
I wish there was an APRS that didn't have all the ham radio guys there
This is only about the 4t time i even heard the name of this gadget. So if a few ppl was camping or working in the desert or Forrest. Each group in theory could use a helium balloon to lift a node to about 50 75 meters possibly teathered by a kite string with a possibility 30 gauge enameled copper wire for grunding and possibly mounting te antenna to. Maybe use hydrogen in the balloon, produced from water and a solar panel. With say 5+ groups of 2-4+ ppl. Say 2-5 miles apart. This could allow basic communication between them each group having a node close by (roughly 150' high) possibly a central node in a Forrest location with tall trees. They should have good comms . Especially in a desert location as long as the nodes can see each other, and the people on the ground can see a node. I can see this being awsome with some improvements relax regulations slightly, with a 8-10 watt Maximum (and 2watt buffer) an a slight change to transmission protocol. Have a short term memory to store messages if they can't be instantly transitted. Have the messages lined up like the start of a race , one goes, a few seconds later the next, then a few seconds then another, possibly receive messages before transmitting the next. Maybe a received confirmation signal. Then the next transmission to prevent lost messages and congestion. Maybe divide into channels by the frequency of the message how fast the message itself is sent. Like talking faster and slower. Wth the same volume. Say the two channels. One is one word/sec. Two is 2 word's/sec. Actually much faster with not such large difference in rate, but the system programed to seperatethe two. And what abut transmission over CB radio frequency?? Sorry to ramble, havea awesome day!
What is the meshtastic like shortwave system called? I’m interested in meshtastic coming from ham side but am more interested in HF shortwave even though to me short wave isn’t HF I’d rather a system like meshtastic that can travel even further between nodes
I guess FT8 for the most common one but there is a few other protocols. I don’t have the ideal set-up but can still receive and decode signals from all EU with only a piece of wire on my balcony in Paris.
@@yom73so that works as a mesh system I haven't got into that. Was thinking it was only digital/data connected to radio transmitting into the ether
JS8Call is based on FT8 but introduces message parsing
Would it be beneficial for APRS to adopt a modern chirp modulation? This would improve range and reduce required power.
Fantastic video - thank you for your work putting this together. I plan to share it with non-hams who ask me about getting into radio.
Dont forget on HF Amatures use between 160m to 10m not just 80m to 10m bands plus all modes but more frequently cw usb lsb rtty
Would you recommend the Xiegu X6100 or the X6200 (when it comes out) as a first radio? I live in an apartment and don't have much space. Thank you!
I think the Xiegu G90 would probably be a better beginners radio, as the 20 watts output will help you. QRP can be frustrating, especially when you don't know what to expect, even though the 10 watts of my x6100 does work well for me at this point in the solar cycle. Also the x6100 is a bit of a janky radio, the software isn't very well thought out or programmed, the radio has a lot of birdies and easily overloads from strong local signals and you basically have to buy a fan for it to use for sessions longer than 30-60 minutes or it will overheat. If you can get it cheap, then it's an okay radio (I got it 18% off), but if you want something good thats portable, go for a icom 705. It's a lot more expensive though. The new x6200 looks like it's just a reskinned x6100 at a higher price with a few software updates - sounds like a bad deal to me. x6200 has a lower max output at 8 watts, probably because they've realised that it overheats too easily at 10 watts.
@@sn0ren Hello, you have been very kind. I am looking into the two models you have suggested. Thank you again for your courtesy and your time!
Good video
i got the p1s, my gold pei sheet refuses to hold prints like it did when it first came out of the box, i have washed it with dawn dish soap and followed their exact guide on how to clean and no. im at a loss because my return policy JUST ended and then this happens lol
show me how
But can it play DOOM?
Is the The Clifford Heath edition better/newer than the 2024 R10 version? Which is better? What version is the The Clifford Heath edition based upon?
Clifford’s version is based on the 2019 version. As far as I know the changes in versions since have been mostly about using chips that are available for purchase.
@TalkingSasquach & @CliffordHeath ?
Excellent job! A long-time Elmer.
I got a boafeng long before I got a license. But getting a license gave me a good foundational understanding of RF which changed everything for me. Now I'm learning YSF finally
Excellent introduce to the topic ❤
Just ordered mine after years of wanting one. Thank you for the info!
Great video! Thank you for this fine effort!
The downside to APRS is the HAM license requirement. As where LoRa can be experimented with by us unlicensed plebs, lol. Now that being said, APRS, by virtue of its design, is FAR more capable. And.. I think i'm going to have to end up getting a HAM license at some point. My mother got hers back in.. 1990 I think? So I've been in and around the space for at least part of my early life.
I love radio of all shape and size, I should get a ham radio license.
You should!
La música culera era necesaria?
Great content!!
Excellent video! Thank you for creating and sharing! ❤
You should check out rnode instead of meshtastic.
Both tools are completely different. The flippers used for IR, Ibutton, subghz, and RFID. The hackrf, while capable of recording a signal, is a traciever designed for radios. A flipper and hackrf save files are not interchangeable that I know of. At least not out of the box. The big brother to the Flipper is dependent on the frequency. That could be a small usb dongle for IR, a microcontroller, or an FPGA. The big brother to the hackrf are it's individual transcievers, which each have their own solutions.
Great video thank you!
“Hobby Radio” is not a great name either. I like “Experimental Radio.”
Some of our points about Meshtastic are valid, but I think your missing the point of It. Its really designed for small groups as the max nodes supported is pretty small. Think emergency communications. Sure, you could do this with APRS, but that requires a license, has no encryption, requires more power, more batteries and a much larger footprint if your trying to stay low-profile. I agree that Meshtastic is more of a local area mesh network, and APRS is at its best in larger metro areas where the added xmit power (5W and up) can really reach out. Then add mobile APRS to this and its pretty powerful. But again, no encryption. Every message is available for anyone to read. This is not an option for a lot of use cases.
Without using any WiFi or radio connection 😂😂
he didnt say that
snoren said celullar conection
Range?
The range is basically line of sight between radio devices. I think the longest distance worked on Meshtastic is about 250 km. But you need your antenna up high and clear of surrounding buildings, trees and hills.
Another great video. Another comment just to promote your hard work within CZcams algorithms. Love it, keep this going!
These appropriately should be combined with a mainline linux kernel and crippling the firmware to the cellular radio or else the android phone will just exfil the data at some point possibly
That is beyond cool. Seeing stuff like this that has applications for prepping but also military is awesome. Thanks for sharing it with hs
I tried doing this transmitting from my HACKRF to my flipper zero and the signal strength was pretty weak. For me, you’ve got to be standing within 3 meters of the device in order to pickup any signal… 🤷♀️
HackRF transmits at a power output level of less than 20 milliwatts and if you’re using a non resonant antenna the range is going to be even less. It’s not a powerful transmitter at all. It’s meant for short range local experiments.
@@sn0ren I’m just using the stock telescopic antenna that I received in the package along with the HACKRF. It works pretty well for receiving but transmitting like you mentioned isn’t the best. I also tried the other 3 antennas but they also didn’t output much power. I’m sure it’s gotta be the HACKRF because the flipper won’t even pickup the signal from my HACKRF when replaying a key fob.
yo you got the same wallpaper as me