Hds

[Todd Driscoll]

No doubt, you absolutely want independent 2D sonar transducers up front and in back. I would say that two StructureScans would be entirely optional. 2D sonar is what you would use to watch your lure as you vertically fish, as it provides a wide cone of coverage (cone diameter 1/3 of water depth). You can't do this with StructureScan, as it's coverage is a narrow beam (can't keep your lure in this narrow beam).

StructureScan only supports one ducer, so to have independent StructureScan ducers on the trolling motor and in the back, you will need to purchase two StructureScans. You would then link the two StructureScan modules together with Ethernet cables, then run an Ethernet cable from the modules to the respective HDS units. With Ethernet link, wpt sharing is automatic and complete (new wpts, wpt edits, deletions). StructureScan HD has replaced the original StructureScan.

All HDS units come with very functional internal GPS antennas, so wpts you mark will be based on the lat/longs from that unit, so no concerns regarding the potential 20-feet error you mention. The LGC-4000 external antenna is another option, and if you went this route you would need to get one for each unit, plus you would need to install the NMEA 2000 network. The 4000s provide a GPS position update 5X/sec, while the internals 1X/sec.

For Sirius radio, you would need the Lowrance LWX-1 Sirius antenna, which connects via the provided Ethernet cable to either the HDS unit direct or thru one of the Ethernet ports on the StructureScan. Here, I would also recommend the SonicHub (allows your HDS units to serve as your radio interface).

HDS units are coded like this:

HDS 5 - GPS and sonar
HDS 5M - GPS only
HDS 5X - sonar only

Download the 2012 product catalog here:

http://www.lowrance.com/en/Downloads/Catalogs/

[Vegasspider]

What the heck did we ever do before the ole www

I think one follow up post should be the total net cost for the system you have specked out here.

[lowrider]

Originally Posted by Todd Driscoll

No doubt, you absolutely want independent 2D sonar transducers up front and in back. I would say that two StructureScans would be entirely optional. 2D sonar is what you would use to watch your lure as you vertically fish, as it provides a wide cone of coverage (cone diameter 1/3 of water depth). You can't do this with StructureScan, as it's coverage is a narrow beam (can't keep your lure in this narrow beam).

StructureScan only supports one ducer, so to have independent StructureScan ducers on the trolling motor and in the back, you will need to purchase two StructureScans. You would then link the two StructureScan modules together with Ethernet cables, then run an Ethernet cable from the modules to the respective HDS units. With Ethernet link, wpt sharing is automatic and complete (new wpts, wpt edits, deletions). StructureScan HD has replaced the original StructureScan.

This is the best advice given on this whole thread. The extra money spent on setting up for Structure Scan for the front of the boat is, in my opinion, a giant waste. Think about whats will happen to your display when you spin your troller....It's going to skew the readings to a point where what you're seeing isn't accurate. Save the $$ or better yet, take that and make the 2nd unit an HDS 10.