this post was submitted on 05 Mar 2024
227 points (95.6% liked)
Technology
59288 readers
4851 users here now
This is a most excellent place for technology news and articles.
Our Rules
- Follow the lemmy.world rules.
- Only tech related content.
- Be excellent to each another!
- Mod approved content bots can post up to 10 articles per day.
- Threads asking for personal tech support may be deleted.
- Politics threads may be removed.
- No memes allowed as posts, OK to post as comments.
- Only approved bots from the list below, to ask if your bot can be added please contact us.
- Check for duplicates before posting, duplicates may be removed
Approved Bots
founded 1 year ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
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.
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.
How does a one way transmitter (transceivers are 2 way) ensure the message is received? Does the sender just have to hope the recipient is in range at the time of sending?
With one way pagers, there is no way to ensure the message is received. The transmitters can be hundreds of watts and the signal is narrow band and uses forward error correction. As long as the pager is on and in the coverage area, there is a pretty good chance the message will get through. The signals will penetrate much deeper into buildings than cell signals. Of course if you are underground or in a shielded room the signal will not get through and you will not know that you missed a message.