Long Range Wireless

[Dwayne]

Hello Kickin,

Kickin>>The only problem I see is the data itself. You mentioned using a low baud rate (outputting the data as text?). Would this be better than devising a 'morse code' style system, sending different length pulses - perhaps a short one to mean '1', and a long one to be a 'break'??<<

This is all up to you...How you send your text is up to you...I prefer Morse... But hey...when you read 40 WPM in your head, its easy to decode <g>. IT also needs no special equipement like a PLL for different tones (like in RTTY). Dashs are 3 times the length of dots... space between words is equivalent to a dash. space between dots is a dot.

I have no experience with Cell Phone and PIC connectivity. But, if you want to use SMS, maybe someone like Ralph can help you... I believe he has much experience in Cell phone/PIC communication. I do not know how much data you are sending, but 40 WPM is approx 200 characters per min...(A word is considered to be 5 characters in length).

I doubt if I have helped you much, but maybe this will give you some ideas.

Dwayne

[Kickin]

Thanks again.

I think I will go with the text to start with, then try morse later - start with the simpler

I probably wont use SMS for a couple of reasons - firstly it will prbably require loads more work (lazy me ) and secondly, I would need to top-up every phone when it ran out of credit, rather than just the 1.

Thank you once again for your help

[scorpion]

check www.sierrawireless.com they might have something that you could use
-scorp

[Ioannis]

If I had such a project I would definetly use GSM devices, may be SMS message sending but prefferably GPRS that is now very cheep (at least in my country) about 15 Euros per month per 10Mb traffic.

Ioannis