??? 11/28/07 23:03 Read: times |
#147538 - Fish finder freq. Responding to: ???'s previous message |
The Furuno fish (and bottom) finder I use uses two selectable frequencies, 50kHz and 200kHz. I get much better detail with the 200kHz setting, size of fish, which way it's swimming, what it had for lunch, etc.;)
Hal |
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 |