Might want to look into LoraWan and similar.
Comment on Pager Lives Again Thanks To Python And Mastodon
harcesz@szmer.info 3 months ago
No idea if this can be secure in any reasonable way, but one way communication based on cheap devices and available frequencies could be quite attractive for activist mass mobilisations 🤔
Creat@discuss.tchncs.de 3 months ago
NuXCOM_90Percent@lemmy.zip 3 months ago
Pagers are still fairly popular for hospital workers. And they are still very popular among people who have to work in secure areas or on airgapped machines because it is (effectively) one way communication.
But for the vast majority of people? SMS provides all the same benefits (I mean, pagers are basically just one way SMS boxes) and emergency alert systems already exist.
WhiteOakBayou@lemmy.world 3 months ago
Pagers also work even in parts of the hospital that cell phones don’t for whatever reason. At least last time I had a hospital pager a few years ago. Now a lot of places use commercial solutions like vocera that also work everywhere and allow two way voice comms.
cmnybo@discuss.tchncs.de 3 months ago
Pager transmitters can be fairly high powered since it’s one way. One transmitter can cover a very large area if the antenna is up high.
MaxHardwood@lemmy.ca 3 months ago
How does a one way transmitter ensure the message is received? Does the sender just have to hope the recipient is in range at the time of sending?