▲ 434 ▼ TELL ME (lemmy.world) submitted 2 years ago by sebinspace@lemmy.world to c/lemmybewholesome@lemmy.world 335 comments fedilink hide all child comments TELL ME
[–] copymyjalopy@sh.itjust.works 47 points 2 years ago (8 children) Meshtastic long range radio systems. Off grid, user created, low bit rate but stupid long range. permalink fedilink source hideshow 16 child comments replies: [–] SomeAmateur@sh.itjust.works 14 points 2 years ago (2 children) Sweet I'm pretty inexperienced with radio stuff but I've been meaning to look into that for a while. Time to hop down the rabbit hole! permalink fedilink source parent hideshow 4 child comments replies: [–] copymyjalopy@sh.itjust.works 9 points 2 years ago (1 child) It's just the right amount of DIY to be engaging and so cheap to get into. Plus the discord community is really active. permalink fedilink source parent hideshow 2 child comments replies: [–] deegeese@sopuli.xyz 6 points 2 years ago Plus the discord community is really active. permalink fedilink source parent [–] dditty@lemm.ee 5 points 2 years ago (1 child) This is the first time I've heard about this; seems so cool! Any ideas which radios I should be looking at? permalink fedilink source parent hideshow 2 child comments replies: [–] root@lemmy.world 5 points 2 years ago Get on the notification list for a RAK starter kit. I have heltec and RAK, and the NRF chip outperforms the ESP32 based ones by leaps. Barely uses any battery. Just check which frequency you need for your country. I'm in NA so we use 915 MHz Link permalink fedilink source parent [–] beastlykings@sh.itjust.works 7 points 2 years ago* (1 child) You a ham? Or is this LoRa? APRS? permalink fedilink source parent hideshow 2 child comments replies: [–] copymyjalopy@sh.itjust.works 10 points 2 years ago (1 child) This is LoRa but there's heavy crossover with the HAM community. permalink fedilink source parent hideshow 2 child comments replies: [–] beastlykings@sh.itjust.works 4 points 2 years ago (1 child) Cool. I got licensed just before the pandemic, I've played with APRS a bit but never LoRa permalink fedilink source parent hideshow 2 child comments replies: [–] nickwitha_k@lemmy.sdf.org 5 points 2 years ago IIRC, some hardware can be switched into a HAM mode, letting it transmit at higher wattage, at the cost of zero encryption for legal compliance. permalink fedilink source parent [–] einfach_orangensaft@feddit.de 5 points 2 years ago i like those permalink fedilink source parent [–] higante@lemmy.world 4 points 2 years ago (1 child) I placed my order for some radios to play with 3 days ago. Im unreasonably excited for them to arrive. permalink fedilink source parent hideshow 2 child comments replies: [–] copymyjalopy@sh.itjust.works 2 points 2 years ago (1 child) I'm in thr US and had to order mine from Aliexpress. Those were some long weeks of waiting. permalink fedilink source parent hideshow 2 child comments replies: [–] higante@lemmy.world 2 points 2 years ago It doesn't help that i orderd it on the 2nd day of Chinese new year, so i wont see any action for at least a week. permalink fedilink source parent [–] Arthur_Leywin@lemmy.world 3 points 2 years ago* (1 child) How did you learn to not fuck up? I heard if you interfere with important radio frequencies (airplanes I think) you'll get punished by the law. Edit: I looked into transceivers at one point and saw that mentioned. permalink fedilink source parent hideshow 2 child comments replies: [–] copymyjalopy@sh.itjust.works 5 points 2 years ago They operate in bands intended for stuff like LoRa and IoT. So there's no danger of messing with other systems. permalink fedilink source parent [–] Bach37strad@lemmy.world 3 points 2 years ago (1 child) That's fascinating. I just picked up my first 10M radio, can you elaborate a bit? permalink fedilink source parent hideshow 2 child comments replies: [–] copymyjalopy@sh.itjust.works 3 points 2 years ago I'm not much of an expert but it's basically low power UHF radios that use a particular waveform and FFT process to decode signals that are well below background noise. My radio regularly picks up messages with an SNR -10. I like it to the GPS system's algorithms. The main drawback is that, because they're low power, you have to have LOS between antennas. permalink fedilink source parent [–] JohnDClay@sh.itjust.works 2 points 2 years ago (1 child) Like ham radio bounce off the ionosphere over the horizon long range? permalink fedilink source parent hideshow 2 child comments replies: [–] copymyjalopy@sh.itjust.works 4 points 2 years ago Not that far. Most LoRa systems use UHF bands so you need LoS to get these super low powered radios to work. permalink fedilink source parent [–] root@lemmy.world 2 points 2 years ago Lmaoooo, was going to say the same thing. Fantastic project that has me hooked. permalink fedilink source parent
[–] SomeAmateur@sh.itjust.works 14 points 2 years ago (2 children) Sweet I'm pretty inexperienced with radio stuff but I've been meaning to look into that for a while. Time to hop down the rabbit hole! permalink fedilink source parent hideshow 4 child comments replies: [–] copymyjalopy@sh.itjust.works 9 points 2 years ago (1 child) It's just the right amount of DIY to be engaging and so cheap to get into. Plus the discord community is really active. permalink fedilink source parent hideshow 2 child comments replies: [–] deegeese@sopuli.xyz 6 points 2 years ago Plus the discord community is really active. permalink fedilink source parent [–] dditty@lemm.ee 5 points 2 years ago (1 child) This is the first time I've heard about this; seems so cool! Any ideas which radios I should be looking at? permalink fedilink source parent hideshow 2 child comments replies: [–] root@lemmy.world 5 points 2 years ago Get on the notification list for a RAK starter kit. I have heltec and RAK, and the NRF chip outperforms the ESP32 based ones by leaps. Barely uses any battery. Just check which frequency you need for your country. I'm in NA so we use 915 MHz Link permalink fedilink source parent
[–] copymyjalopy@sh.itjust.works 9 points 2 years ago (1 child) It's just the right amount of DIY to be engaging and so cheap to get into. Plus the discord community is really active. permalink fedilink source parent hideshow 2 child comments replies: [–] deegeese@sopuli.xyz 6 points 2 years ago Plus the discord community is really active. permalink fedilink source parent
[–] deegeese@sopuli.xyz 6 points 2 years ago Plus the discord community is really active. permalink fedilink source parent
[–] dditty@lemm.ee 5 points 2 years ago (1 child) This is the first time I've heard about this; seems so cool! Any ideas which radios I should be looking at? permalink fedilink source parent hideshow 2 child comments replies: [–] root@lemmy.world 5 points 2 years ago Get on the notification list for a RAK starter kit. I have heltec and RAK, and the NRF chip outperforms the ESP32 based ones by leaps. Barely uses any battery. Just check which frequency you need for your country. I'm in NA so we use 915 MHz Link permalink fedilink source parent
[–] root@lemmy.world 5 points 2 years ago Get on the notification list for a RAK starter kit. I have heltec and RAK, and the NRF chip outperforms the ESP32 based ones by leaps. Barely uses any battery. Just check which frequency you need for your country. I'm in NA so we use 915 MHz Link permalink fedilink source parent
[–] beastlykings@sh.itjust.works 7 points 2 years ago* (1 child) You a ham? Or is this LoRa? APRS? permalink fedilink source parent hideshow 2 child comments replies: [–] copymyjalopy@sh.itjust.works 10 points 2 years ago (1 child) This is LoRa but there's heavy crossover with the HAM community. permalink fedilink source parent hideshow 2 child comments replies: [–] beastlykings@sh.itjust.works 4 points 2 years ago (1 child) Cool. I got licensed just before the pandemic, I've played with APRS a bit but never LoRa permalink fedilink source parent hideshow 2 child comments replies: [–] nickwitha_k@lemmy.sdf.org 5 points 2 years ago IIRC, some hardware can be switched into a HAM mode, letting it transmit at higher wattage, at the cost of zero encryption for legal compliance. permalink fedilink source parent
[–] copymyjalopy@sh.itjust.works 10 points 2 years ago (1 child) This is LoRa but there's heavy crossover with the HAM community. permalink fedilink source parent hideshow 2 child comments replies: [–] beastlykings@sh.itjust.works 4 points 2 years ago (1 child) Cool. I got licensed just before the pandemic, I've played with APRS a bit but never LoRa permalink fedilink source parent hideshow 2 child comments replies: [–] nickwitha_k@lemmy.sdf.org 5 points 2 years ago IIRC, some hardware can be switched into a HAM mode, letting it transmit at higher wattage, at the cost of zero encryption for legal compliance. permalink fedilink source parent
[–] beastlykings@sh.itjust.works 4 points 2 years ago (1 child) Cool. I got licensed just before the pandemic, I've played with APRS a bit but never LoRa permalink fedilink source parent hideshow 2 child comments replies: [–] nickwitha_k@lemmy.sdf.org 5 points 2 years ago IIRC, some hardware can be switched into a HAM mode, letting it transmit at higher wattage, at the cost of zero encryption for legal compliance. permalink fedilink source parent
[–] nickwitha_k@lemmy.sdf.org 5 points 2 years ago IIRC, some hardware can be switched into a HAM mode, letting it transmit at higher wattage, at the cost of zero encryption for legal compliance. permalink fedilink source parent
[–] higante@lemmy.world 4 points 2 years ago (1 child) I placed my order for some radios to play with 3 days ago. Im unreasonably excited for them to arrive. permalink fedilink source parent hideshow 2 child comments replies: [–] copymyjalopy@sh.itjust.works 2 points 2 years ago (1 child) I'm in thr US and had to order mine from Aliexpress. Those were some long weeks of waiting. permalink fedilink source parent hideshow 2 child comments replies: [–] higante@lemmy.world 2 points 2 years ago It doesn't help that i orderd it on the 2nd day of Chinese new year, so i wont see any action for at least a week. permalink fedilink source parent
[–] copymyjalopy@sh.itjust.works 2 points 2 years ago (1 child) I'm in thr US and had to order mine from Aliexpress. Those were some long weeks of waiting. permalink fedilink source parent hideshow 2 child comments replies: [–] higante@lemmy.world 2 points 2 years ago It doesn't help that i orderd it on the 2nd day of Chinese new year, so i wont see any action for at least a week. permalink fedilink source parent
[–] higante@lemmy.world 2 points 2 years ago It doesn't help that i orderd it on the 2nd day of Chinese new year, so i wont see any action for at least a week. permalink fedilink source parent
[–] Arthur_Leywin@lemmy.world 3 points 2 years ago* (1 child) How did you learn to not fuck up? I heard if you interfere with important radio frequencies (airplanes I think) you'll get punished by the law. Edit: I looked into transceivers at one point and saw that mentioned. permalink fedilink source parent hideshow 2 child comments replies: [–] copymyjalopy@sh.itjust.works 5 points 2 years ago They operate in bands intended for stuff like LoRa and IoT. So there's no danger of messing with other systems. permalink fedilink source parent
[–] copymyjalopy@sh.itjust.works 5 points 2 years ago They operate in bands intended for stuff like LoRa and IoT. So there's no danger of messing with other systems. permalink fedilink source parent
[–] Bach37strad@lemmy.world 3 points 2 years ago (1 child) That's fascinating. I just picked up my first 10M radio, can you elaborate a bit? permalink fedilink source parent hideshow 2 child comments replies: [–] copymyjalopy@sh.itjust.works 3 points 2 years ago I'm not much of an expert but it's basically low power UHF radios that use a particular waveform and FFT process to decode signals that are well below background noise. My radio regularly picks up messages with an SNR -10. I like it to the GPS system's algorithms. The main drawback is that, because they're low power, you have to have LOS between antennas. permalink fedilink source parent
[–] copymyjalopy@sh.itjust.works 3 points 2 years ago I'm not much of an expert but it's basically low power UHF radios that use a particular waveform and FFT process to decode signals that are well below background noise. My radio regularly picks up messages with an SNR -10. I like it to the GPS system's algorithms. The main drawback is that, because they're low power, you have to have LOS between antennas. permalink fedilink source parent
[–] JohnDClay@sh.itjust.works 2 points 2 years ago (1 child) Like ham radio bounce off the ionosphere over the horizon long range? permalink fedilink source parent hideshow 2 child comments replies: [–] copymyjalopy@sh.itjust.works 4 points 2 years ago Not that far. Most LoRa systems use UHF bands so you need LoS to get these super low powered radios to work. permalink fedilink source parent
[–] copymyjalopy@sh.itjust.works 4 points 2 years ago Not that far. Most LoRa systems use UHF bands so you need LoS to get these super low powered radios to work. permalink fedilink source parent
[–] root@lemmy.world 2 points 2 years ago Lmaoooo, was going to say the same thing. Fantastic project that has me hooked. permalink fedilink source parent
