xiangcai @xiangcai - 15d
there are households which are still using analog antennas in Germany
just did a bit research on this topic. there are in total 2.7 million ham radio stations. and it's quite easy to pass exam and get a license from government. awesome
cool. how many non-encrypted signals are in the air👀
semisol @semisol - 15d
all of it must be unencrypted in a bunch of countries in ham spectrum
or anything that “obfuscates” a message’s intent, but it does not apply to authentication of messages
ok... https://www.perplexity.ai/search/8771f4d9-0028-482e-8e5e-2a834a12cc33
damn perplexity shares whole thread😂 anyway, government not allowing encrypted ham radio is wired
looks like in ISM (Industrial, Scientific, and Medical, license-free) bands, encryption is permitted and legal for personal use. ham bands are strictly encryption prohibited. tricky point is, ISM and ham share some frequencies, however ISM has priority if conflicted.
ISM you can do anything within legal limits, unless it’s jamming sometimes you are forced to cooperate as well with other devices (TPC or something like that)
looks like a loophole but good👀
if encryption was illegal within ISM then WiFi would not exist
010df - 15d
I've been meaning to work on figuring out reticulum on 7mhz ISM. The big win would be NVIS type coverage, kinda like 40m js8 without a #hamradio license. Massive range with a single transmitter, hundreds of miles to global with the right atmospheric conditions. The big downsides would be antenna size compared to 900mhz ISM like #meshtastic and much more coverage variability over the course of a day and day to day.
7mhz is nvis possible. Predictable 400 ish mile circle if I remember correctly. That is mostly at gray-line though. 7mhz will come and go depending on solar activity and time of day though. Roughly 40m band but ISM.
010df - 14d
Hm. Bigger antenna still but more reliable. I wonder if there is an 80m ISM allocation?
Slightly larger antennas for that than 900 MHz meshtastic.
