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Which transducer, by item number, comes with the HB 798? Can it be used on a trolling motor..
I looked on the HB website and they seem to recommend the XTM 9 HDSI 180 T.....Is this the correct transducer for the 798 or the higher line models..The 798 does not use the 800Khz frequency...
Also, will the 798 fit in the 777 snap in base?
My 798 came with XNT-9-SI-180-T and I use it on trolling motor.
The 798 units are shipped with the XNT-9-Si-180-T transom mount Compact Side Imaging (CSi) transducer as Denny stated; but I would encourage you to trade it in on an XTM-9-Si-180-T Trolling Motor mounted transducer (or the XTM-9-HDSi-180-T but that is more money) as it has an additioinal layer of shielding that you may or may not need, depending on how much RF interference your trolling motor puts off. Some prefer the more expensive and larger XTM-9-HDSi-180-T due to the more defined 455kHz Si sonar, but not everyone can see the added definition on the smaller 798 display (no the 800kHz Si sonar will not work with the 798).
Yes the 777 will work on the 798's base but you may run into some problems with the 777c using the 798's external GPS Receiver. The 777c was designed to use the GR16 GPS Receiver. The GR50 GPS Receiver which shipped out with the 798c Si units, was meant to be a direct replacement for the GR16 but they could not get it to work at the same current draw. The result is that the GR50 may draw more current than the 777c model can source and the result is that it burns out the GPS Receiver power circuitry that is in the 777c unit. Other than that, the 777c can use the 2D sonar part of which ever Si transducer you end up using.
Thanks Greg, I was just concerned as to why HB would send a transducer with the "New" 798 HDSI that was not an HD transducer...Quote:
Originally Posted by Humminbird_Greg
How long is the XTM 9 HDSI 180 T?
Also, doesn't the new 798 have internal GPS?
Thanks
This may be wrong, but...Quote:
Originally Posted by Don G
HB models with an "i" in the name are Internal GPS.
Models lacking an "i" are External. For example, the
"798ci HD SI" has an internal GPS antenna while the
"798c HD SI" is external.
I suspect the "c" desginates chartplotting, which
all the upper HB models provide.
Obviously, "SI" is side imaging.
"HD" means...high definition? I dunno. HB just
added two letters to make the latest model 798
different from the prior year.
Thanks Denny, if I go with HB I will definitely get the HD transducer..The additional cost of the upgraded transducer just might be enough that I will go with the Low HDS5..We will see..Quote:
Originally Posted by Denny
It would be easier to go with HB since I already have a 777c2 mounted and can use the base for the 798..
Now I will have to see what modifications I will have to make on my MK Maxxum TM to make the 6" trans fit..
Thanks again
Don looks like the XTM 9 HDSI 180 T is 8.1x6.9x3.4 in.The XHS 9 HDSI 180 T is 6in. long.
Oh me, I don't think it will work unless I modify the skeg..Quote:
Originally Posted by Denny
Attachment 62019
HsxToolFool,Quote:
Originally Posted by HsvToolFool
You got most of it right. Here are the corrections:
The “c” designates a color display.
“HD” could mean one of two things:
- When used along with “Si” (HDSi) it designates the higher definition side imaging sonar frequency is usable by that unit.
- When used by itself as in the 798ci HD Si or 788ci HD it designates a higher pixel count display.
There is no 798c HD Si model units. All of the 2011 year model 798 units are internal GPS versions (798ci HD Si).
Denny,Quote:
Originally Posted by Denny
The XHS-9-HDSi-180-T and XTM-9-HDSi-180-T use the same transducer and both should be 6 inches long (5.9”). Where did you get the 8.1X6.9X3.4 measurements?
Don G,Quote:
Originally Posted by Don G
Not sure how much room you have on your Maxxum trolling motor but most make the larger HDSi transducer fit.
Is this the 798ci HD Si model that you are looking at getting? If so than you will find that the connector collector pieces in the unit mount will be different than what is used on the 777c2 unit you have. There was a change made to one of the connectors so that the new 2011 version 798ci HD Si models could have an Ethernet connection on them. This necessitated changing the connector collector parts as well which make them not compatible with the older model units. All you would have to do is switch out the plastic and metal parts that hold the cable connectors in place and it will work though (two phillip screws to remove/replace). Now if this is an older 798c Si or 798ci Si model unit than the parts are the same as for the 777c units.
I think that the cost to exchange the XNT-9-Si-180-T transducer for the XHS-9-HDSi-180-T is around $70
Ha! I knew it couldn't be so simple. Thanks for the info, Greg.Quote:
Originally Posted by Humminbird_Greg