Distance between Receiver and emitter (RF) - Electronic Circuits Projects Diagrams Free

Sync · 2nd June 2008, 11:59 PM

By using a microprocessor like a pic, is it possible to know the distance between both RF receiver and emitter ?

Thanks!

Papabravo · 3rd June 2008, 12:22 AM

Speed of light is about a foot per nanosecond. Can the PIC you have in mind measure time to within plus or minus 500 picoseconds? If so then it is possible, if not well...Quelle domage.

Sync · 3rd June 2008, 06:33 AM

Wow! i see

Is there another solution (cheap) ?

Torben · 3rd June 2008, 09:21 AM

Quote:

Originally Posted by Sync

Wow! i see

Is there another solution (cheap) ?

We need more information.

What range do you need?

What accuracy do you need?

What are your power limitations?

What are your size limitations?

If you want something you can put in your pocket I don't think it will come easy or cheap.

Torben

Sync · 3rd June 2008, 03:48 PM

Quote:

Originally Posted by Torben

We need more information.

What range do you need?

What accuracy do you need?

What are your power limitations?

What are your size limitations?

If you want something you can put in your pocket I don't think it will come easy or cheap.

Torben

- Range about 1000 to 1500 feet or a bit more
- Accuracy in 20 feet or less
- 9 volts battery
- Yes, pocket size. (ex: iPod nano)
- Outdoors (indoors if possible)

Thanks.

blueroomelectronics · 3rd June 2008, 03:54 PM

Quote:

Originally Posted by Sync

- Range about 1000 to 1500 feet or a bit more
- Accuracy in 20 feet or less
- 9 volts battery
- Yes, pocket size. (ex: iPod nano)
- Outdoors (indoors if possible)

Thanks.

The short answer NO.

erosennin · 3rd June 2008, 04:04 PM

1500' Indoors from 9VDC, the size of an iPod nano...
I think you've got the time machine working there and you've come to give us a hoy hoy. =p

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2nd June 2008, 11:59 PM	(permalink)
Sync	Distance between Receiver and emitter (RF) By using a microprocessor like a pic, is it possible to know the distance between both RF receiver and emitter ? Thanks!

3rd June 2008, 12:22 AM	(permalink)
Papabravo	Speed of light is about a foot per nanosecond. Can the PIC you have in mind measure time to within plus or minus 500 picoseconds? If so then it is possible, if not well...Quelle domage. __________________ We never have time to do it right; but we always have time to do it over.

3rd June 2008, 06:33 AM	(permalink)
Sync	Wow! i see Is there another solution (cheap) ?

3rd June 2008, 04:04 PM	(permalink)
erosennin	1500' Indoors from 9VDC, the size of an iPod nano... I think you've got the time machine working there and you've come to give us a hoy hoy. =p __________________ What is a joule per second?