| ??? 11/28/07 12:53 Read: times |
#147500 - multipath Responding to: ???'s previous message |
Andy Neil said:
Christoph Franck said:
you might have to deal with all kinds of pesky effects like echoes, . True, but then "multipath" effects are common with RF comms... Yes but the frequency and data sent is very high, you know that Andy I saw your site you seems to develop GSM interface devices. With Ultrasonic what worthfull data would be left for decipher? , I mean to say the carrier freq would be is toooooo sluggish . Whay not leave it for measuring fluid level ;-) APC |
| Topic | Author | Date |
| Ultrasound Data Link | 01/01/70 00:00 | |
| Not really ultrasonic. | 01/01/70 00:00 | |
| The other issue ... | 01/01/70 00:00 | |
| Echoes | 01/01/70 00:00 | |
| Speed of sound vs. speed of light | 01/01/70 00:00 | |
| multipath | 01/01/70 00:00 | |
| Signal attenuation is very big | 01/01/70 00:00 | |
| Similarity to IR remote | 01/01/70 00:00 | |
| the cheapest ultrasound transceivers ... | 01/01/70 00:00 | |
| Frequency ? | 01/01/70 00:00 | |
| Fish finder freq. | 01/01/70 00:00 | |
| Miniscule | 01/01/70 00:00 | |
| Thanks - that's useful | 01/01/70 00:00 | |
RC5 should do it | 01/01/70 00:00 |