Thread: Somebody's been experimenting

Eastern Ky near letcher county and yes it was a 998 and I will try to get some pics of my setup. I have the unit on the bow and my 2d sonar through my terrova us2 and the hdsi ducer mounted on the transome.

https://www.youtube.com/watch?v=MMO1...e_gdata_player this is using the rotated tranducer on455khz for the Di then i switch to the 360. https://www.youtube.com/watch?v=MMO1...e_gdata_player

https://www.youtube.com/watch?v=TgBt...e_gdata_player dedicated Di set to 455khz and my 45 record playing

Originally Posted by kosmo

https://www.youtube.com/watch?v=TgBt...e_gdata_player dedicated Di set to 455khz and my 45 record playing

That video is a good representation of how structure updates on the 360 as the sweep progresses the structure on the 360 image ....

Thanks kosmo...

Rickie

Ok...so I was finally able to get some time off from work to do some initial on the water testing of the new experimental LowBird setup...

I basically built a Y cable that splits the LSS 2 SideScan piezo elements from the single DownScan piezo element and plugs directly into my HB TS3 switch...(basically a "plug and play" Y cable to run a LSS 2 on a HB)...

This setup allows me to select SideScan separately from DownScan (dedicated DI) from the LSS 2 with the HB TS3 switch running to my HB 1197c SI Combo...

I will post some screenshots later when I get them put together in "forum ready fashion"...

But I wanted to give some initial thoughts of my findings so far running the LSS 2 on my HB....

1st (and most important to me) ...was comfirming that it is possible to identify and splice all the correct wires into the correct configuration to actually be able to make a "plug and play" Y cable that separates the LSS 2 SideScan elements from the DownScan elements ....and it operate correctly on a HB SI unit...

2nd...the SI image quality of the LowBird LSS 2 setup seems marginally better than the HDSI Side Imaging setup..but more importantly...the LowBird LSS 2 SideScan has better "Sensitivity" adjustability....meaning the LSS 2 can be ran at a lower sensitivity setting to get the same brightness level needed with the HDSI....(this is beneficial because there are times that the HDSI sensitivity had to be ran "maxed out" at 800kHz on a mud bottom to get enough brightness to suit me...the LowBird LSS 2 still had 5 clicks adjustability before max)....

3rd...the LowBird LSS 2 DownScan stills needs more experiments...there is definate improvement in target echo returns compared to the "DI from SI" of the HDSI...but I'm still getting a DI "double echo" phenomenon that I have to figure out...(I'm not sure yet if it is caused by the HB unit image post processing or from the extra large sound wave sidelobes created by the longer array in the LSS 2)...

What I find most interesting with the LowBird LSS 2 Y cable is the ease of experimenting with different xducer configurations with simple "plug and play" capability ...I now have several options of which xducer and which piezoes I want to run thru which feature of the HB SI unit...

Oh...and by the way...I also experimented with 1 HDSI xducer rotated 60° clockwise linked with a 2nd HDSI xducer rotated 60° counterclockwise on a AS SILR Y cable to see what the blended DI from SI would be from 2 separate HDSI piezo elements pointed straight down together....interesting results but that's a topic for later....

Right now I'm using LSS 2 SideScan on 1 leg of the HB TS3 switch and the HB XTM 9 WIDE DI 20 T dedicated DI xducer on the 2nd leg of the HB TS3 switch ....

LSS 2 SideScan and HB dedicated DI on my 1197c SI Combo....pretty cool...

I'll get some screenshots up soon...

Rickie

cool, post pics asap

This picture is using the rotated transducer on humminbird 998hd..455hz.. In this picture there's a stump with some fish hanging around

Nice picture, Koz

.... BUT, what the heck is the 90deg/70deg labels all about ?? Surely the unit is not saying that there's a 20deg difference in the surface water & subsurface water of a mere 5ft range ??? There's no discernible thermocline marks showing ... even if was possible to have a 20deg difference in water that shallow.

OR .... is that the degree of tilt of the transducer, or the degree of sonar ping angle output (and if so, why the TWO different degree angles )??

... cp