Ekolod. True or False?

[Norden]

Thanks a lot

Are they really that sensitive that different water temperatures may actually appear as fish on the screen.
As you say, it can cause more trouble than pleasure. It is annoying sometimes and especially if it is showing a lot of "Fish" (as it did when i fished Sävelången last week).

What is your main reason for using one? Depth readings? this seems to be the only "True" info that it gives me. I was dubious to weather all the fish symbols were actually fish.

Could you explain about "The curves" symbols instyead of the "fish" ones. What is the advantage of this??

Thanks for the info, it has answered a lot of questions i had.

I'm not sure if they really show different water temperatures, but that's the only explanation I have found. It mostly happens in muddy lakes with rather coloured water. I speculated that it's mud/particles that gets stired up from the bottom by the wind/current but then I was told that it was due to temperature differances. I cant find a relly good explanation, but it's not fish.
I use sonars both for depth readings and for spotting fish, but mostly for depth readings. If you turn the fish-ID off you will get dots and lines instead on the screen. Set the sensitivity so that you have a clear view of the bottom and start using your common sense. Even if fish dont show up as "bananas" you will spot pelagic "clusters" and lines that cant be anything but fish. Schools of baitfish also show up as clouds on the screen. If the cloud reaches from the bottom at 30m depth to 6m depth and is consistent while trolling for several minutes, then thats probably not a school of baitfish... And so on. You'll get the hang of it once you have spotted a few fish and some schools. I've tried the same kind of sonar that you mention a few years back so I know you can spot fish with it. (They're hard to spot clearly near the bottom though)

[Carpoholic]

As a matter of fact, a you migt see a fishsymbol but it isn't a fish. Sometimes it turns out to be a CARP or Nessie or maybe some of her cousins all over the world! If it isn's so the bloody crap is just going bananas!

Carp dont show thierselves on fish finders mate, they are far too intelligent to get caught out that way

As for nessie, i think she was a carp going to an underwater fancy dress party and got caught by papperazzi

hahahahahaha

[Carpoholic]

I'm not sure if they really show different water temperatures, but that's the only explanation I have found. It mostly happens in muddy lakes with rather coloured water. I speculated that it's mud/particles that gets stired up from the bottom by the wind/current but then I was told that it was due to temperature differances. I cant find a relly good explanation, but it's not fish.
I use sonars both for depth readings and for spotting fish, but mostly for depth readings. If you turn the fish-ID off you will get dots and lines instead on the screen. Set the sensitivity so that you have a clear view of the bottom and start using your common sense. Even if fish dont show up as "bananas" you will spot pelagic "clusters" and lines that cant be anything but fish. Schools of baitfish also show up as clouds on the screen. If the cloud reaches from the bottom at 30m depth to 6m depth and is consistent while trolling for several minutes, then thats probably not a school of baitfish... And so on. You'll get the hang of it once you have spotted a few fish and some schools. I've tried the same kind of sonar that you mention a few years back so I know you can spot fish with it. (They're hard to spot clearly near the bottom though)

many thanks for all your answers guys, i will look at my "Boat TV" in a different perspective this weekend.
And i think i will print this out and take it with me
Fiskesnack is deffinatley the place to come for any answers regarding fiash with teeth

Cheers lads

Chris!