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how to make long range paging system?

any ideas on how to make one

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Cheap RF modules for this sort of thing, transmitting on 433 Mhz are available. In the UK RFsolutions are fantastic for anything like this.
kay86 (author) 6 years ago
you know like the resturant pager so that the person has to stay within a block to recieve the information
mikeasaurus6 years ago
Tough to answer without some more specifics. Might be easier to just stick to cell phones (providing there's coverage)
lemonie6 years ago

tricky. what have you got?

L
Kiteman6 years ago
Shout?

Wave flags?

How far is "long range", how much information do you want the message to carry, and why is a normal pager not suitable?