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Post by medicineman on Dec 24, 2014 11:09:58 GMT -5
Ready to buy a new fishfinder. Definitely want sidescan. Not sure whether to buy Lowrance, Hummingbird or Garmin...... Any opinions would be appreciated.
Thanks !
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Post by striperjohn on Dec 24, 2014 15:17:44 GMT -5
I think what you're asking is akin to what's best a Ford or Chevy? I personally think Lowrance is the best on the market and since Navico purchased them their structure is assured for a long time. Lowrance support is topnotch as well. However, I've seen the Hummingbird's operate and they seem to be as good, not aware of their support etc.
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Post by CorneliaGale on Dec 24, 2014 17:47:22 GMT -5
Hummingbird really helped themselves when they bought out BottomLine a few years ago, they really upgraded their units, I have one but most likely in the next year or so will upgrade in and most likely go to Lowrance, which I have used for a number of years before. Go into the stores and look at the different units and play with them and then buy.
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Post by medicineman on Dec 25, 2014 8:46:15 GMT -5
Thanks to both of you. I am going to get a Lowrance HDS-7.
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Post by mwardncsu on Jan 12, 2015 21:33:50 GMT -5
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Post by Deleted on Jan 21, 2015 0:37:36 GMT -5
Here are a few from my collection. Make sure to click on the picture for a larger view. Come back here you bastards!  BULLSEYE!  Reaching way down!  |
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Post by hotdog on Jan 21, 2015 14:47:29 GMT -5
Wow, that's pretty cool Yam! It looks like one side of your net is a little light.  |
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Post by Deleted on Jan 21, 2015 20:05:49 GMT -5
Wow, that's pretty cool Yam! It looks like one side of your net is a little light. Now you made me think! And I think I get it! For downscan a thinner beam is shot than traditional sonar which provides more clarity. I am thinking it's like having more pixels on an HD TV. However some movement is required or the picture will be funky. In the shots above, the angles of the nets result from the boat moving forward and the net dropping. And if you really think about it..the resulting picture is a mirror or backwards image. That is, as the net just enters the sonar cone, the very right of the net becomes the very left of the picture. As the net then drops, this pattern continues until the net is no longer in the sonar cone. Moving forward while taking thin sliced shots of something dropping will always result in this type of angle. And I guess the faster something drops, the steeper the angle. Right? Sonar is a mental puzzle. |
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Post by striperjohn on Jan 21, 2015 20:46:42 GMT -5
The downscan has a 2.5 degree beam slice spread over 60 degrees. I do not think you can get a perfect picture of your net unless you increase your speed combined with a much slower falling net. The ones I have seen on the internet were shot by another boat. I have multiple shots similar to what you guys have taken but all are missing 1/2 or so of the net. Certainly have got me interested in trying it some more. Lol.
Sent from my SM-G900R4 using proboards
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Post by craddockcreek on Jan 22, 2015 8:23:44 GMT -5
What would you expect it to look like if you were sitting perfectly still?
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Post by mwardncsu on Jan 22, 2015 8:39:14 GMT -5
What would you expect it to look like if you were sitting perfectly still? Probably nothing with the narrow cone since you'd throw the net away from the boat - But if you did catch it in the cone you'd get an imagine doing down right to left but likely more smudged The images are so good you think they are a photo snapshot but we forget the are lots of discrete looks down - put together over time - and the net is sinking over time as the screen scrolls from right to left - so the image starts higher in the water column on the left as that's where it was in past time and lower in the water column on the right as that's where it is in more recent time |
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Post by Deleted on Jan 22, 2015 9:23:03 GMT -5
What would you expect it to look like if you were sitting perfectly still? Probably nothing with the narrow cone since you'd throw the net away from the boat - But if you did catch it in the cone you'd get an imagine doing down right to left but likely more smudged The images are so good you think they are a photo snapshot but we forget the are lots of discrete looks down - put together over time - and the net is sinking over time as the screen scrolls from right to left - so the image starts higher in the water column on the left as that's where it was in past time and lower in the water column on the right as that's where it is in more recent time And to freak you out more, the top of the net in the picture is the far right of the actual net. At least that is the only way it makes sense to me. |
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Post by mwardncsu on Jan 22, 2015 9:39:15 GMT -5
Yep
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Post by striperjohn on Jan 22, 2015 14:57:53 GMT -5
My head hurts. Lol
Sent from my SM-G900R4 using proboards
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Gator
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Post by Gator on Jan 22, 2015 21:30:17 GMT -5
My head hurts. Lol Sent from my SM-G900R4 using pro boards Ha, imagine how I feel. I just got a handle on my Dads old paper machine and loran c. Remember those?? |
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