C-120 is awsome with the B256 in hull
#1
Senior Member

Thread Starter
Join Date: Aug 2004
Location:
Posts: 161

Just took out my new boat for a the first run. And I am really impressed with the inhull performance on my cat. I opened the throttles and hit 46 mph before I pulled back on the new engines and to my amazement, it never lost bottom or screwed up the image. I can't wait to get on the gulf. I am glad I did not wimp out and get the transome 600 watt transducer.
#4
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Thread Starter
Join Date: Aug 2004
Location:
Posts: 161

I will get some pictures soon. I was worried about the location of the transducer in the port hull almost at the transom. The guys at the factory told me they put them there all the time. I had read in Airmars manual to place them more amid ship to get them away from engines and possible cavitation. I was worried about thier of locations, but in many cat hulls the locations where you can place an inhull transducer with service access is limited. I rigged this boat with the C-120, DSM-250, Alpha# Keypad, waas GPS, radar, and a KVH 1000 fluxgate compass. I will more than likely ad autopilot after I recover the gapeing hole left in my wallet.
Other than the initial check out run, I have not been able to use the boat on the water, so I have alot to learn about the C-120 and all the features. This unit will keep me learing all the trick for many months to come.
Other than the initial check out run, I have not been able to use the boat on the water, so I have alot to learn about the C-120 and all the features. This unit will keep me learing all the trick for many months to come.
#5
Senior Member





Join Date: Sep 2004
Location: ATL & SAV
Posts: 12,241

I would really appreciate some info on the aux. keypad. My biggest complaint about Raymarine (I have two units already) is the lack of a keypad which makes you have to do a lot of toggling just to enter a waypoint and description. Thanks in advance.
#6
Senior Member



Join Date: May 2002
Location: Skaneateles, New York
Posts: 5,483

Tireless...we went with the remote kepad also on the new Raymarine E-System, still to come. Kinda makes sense to put it in a 'convient' spot to use while looking at display. I know Furuno has theirs on the unit. With the keypad, you don't have to reach to the display to enter data, possibly at an ackward angle. They only cost $150.00 or so, and plug right in. "What's not to like?"

#7
Senior Member

Join Date: Feb 2001
Location: West Virginia
Posts: 3,877

My question is much simpler. Do you have a B256, which is a thru-hull transducer in which the transducer itself resides on the outside of the hull with a stem passing through the bottom of one of your pontoons, or do you actually have an M256, which would be the one which mounts inside the hull, inside a big yellow plastic tank, and which was discontinued about a year ago, shortly after it release?
Thom
Thom
#9
Senior Member

Join Date: Jan 2002
Location: Marina Del Rey, CA
Posts: 174

prokat26 - 12/9/2004 8:28 PM
Just took out my new boat for a the first run. And I am really impressed with the inhull performance on my cat. I opened the throttles and hit 46 mph before I pulled back on the new engines and to my amazement, it never lost bottom or screwed up the image. I can't wait to get on the gulf. I am glad I did not wimp out and get the transome 600 watt transducer.
Just took out my new boat for a the first run. And I am really impressed with the inhull performance on my cat. I opened the throttles and hit 46 mph before I pulled back on the new engines and to my amazement, it never lost bottom or screwed up the image. I can't wait to get on the gulf. I am glad I did not wimp out and get the transome 600 watt transducer.
I have the same setup in my boat. It works great. I still need to get a splitter so that I can also run a sea temp from the C120.
#10
Senior Member

Thread Starter
Join Date: Aug 2004
Location:
Posts: 161

My transducer is the one in the yellow tank. The factory installed it and filled it with mineral oil. I decided to opt out of having the temp and speed feature as with some of the transome mounted and thruhull types, but on a new boat I did not want to make a hole in the hull. I was advised that thruhulls on cats can be tricky. I will more than likely add the temp and speed feature at a later date. Besides I have speed with my yamaha setup and my C-120 as well, I do not need a third way of telling my speed. Today I installed the KVH 1000 on the dash and hooked up the power and got now errors. I will hook up the nema out to the C-120 in to give the info for my radar/chart overlay.
keypad is listed on raymarine website. It allows you to have a keypad similar to a telephone where you can enter alphabet as you would with a phone. It is plug and play for my system, however depending on your setup you may need to have a seatalk hub connector.
keypad is listed on raymarine website. It allows you to have a keypad similar to a telephone where you can enter alphabet as you would with a phone. It is plug and play for my system, however depending on your setup you may need to have a seatalk hub connector.
