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FYI for Airmar P66 users.

Old 02-09-2012, 07:26 PM
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Default FYI for Airmar P66 users.

Just a heads for anyone using an Airmar P66.

I know people rarely do this ....but it is not a good idea to connect a P66 transducer to your sonar head while the power is on.
This may result in a failure of the speed circuit.

I have a customer (And friend) with a bad P66 speed circuit.... he was running two transducers on one head...and would switch from one to the other by unplugging one and then connect the other.... but did not turn off his sonar while doing so.
Well, he blew his speed circuit by connecting the transducer while the power was on.

He of course said "You never told me about that! "
I guess he missed the big yellow tag 2" from the plug that said:

"CAUTION Fish finder power must be OFF when connecting transducer. Speed circuit failure may result."

I showed him (Hard to miss, his finger prints were all over it... lol )...and he said.."Oh, that!"

A great guy , good friend and an amazing fisherman...just not much of a big yellow tag reader.




Of course these tags do get torn off and I just wanted to give a heads up.

Last edited by semperfifishing; 02-11-2012 at 09:08 AM.
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Old 02-09-2012, 08:15 PM
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No, really? They get torn off?
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Old 02-09-2012, 08:31 PM
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Originally Posted by seabob4 View Post
No, really? They get torn off?
Only about 90% of the time..
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Old 02-09-2012, 08:48 PM
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Good tip!

Would you imagine the same failure could result from the use of a 2 T/D -1 FF (or vice-versa) switchbox such as this: http://www.airmartechnology.com/uplo...ures/sb260.pdf ( edit:ignore that one -not applicable to P66 t/D's)

or http://store.navico.com/Products/000-0046-26 ?

Or would those have some feature that woud negate that issue?

Last edited by TTaxi; 02-09-2012 at 09:05 PM.
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Old 02-09-2012, 08:52 PM
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Originally Posted by TTaxi View Post
Good tip!

Would you imagine the same failure could result from the use of a 2 T/D -1 FF (or vice-versa) switchbox such as this: http://www.airmartechnology.com/uplo...ures/sb260.pdf

or http://store.navico.com/Products/000-0046-26 ?

Or would those have some feature that woud negate that issue?

The SB260 is not designed to work with a P66..as it is for 1 kw units.
I believe you may be able to use it with 600 watts units but may have to turn off your sounder to do so.
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Old 02-09-2012, 09:04 PM
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Thanks Semper. Sorry, it had just struck me that of course the good advice was about just the P66 and the SB260 question would not apply so I was about to delete that part. I don't switch TD's or FF's so am not worried about it .
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Old 02-09-2012, 09:15 PM
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You would think the sparks flying out of the end of the cable would be a good indication he needed to turn his fishfinder off. Thats what killed his speed sensor. It didn't help his fishfinder any,either.
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Old 02-09-2012, 09:17 PM
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Originally Posted by TTaxi View Post
Thanks Semper. Sorry, it had just struck me that of course the good advice was about just the P66 and the SB260 question would not apply so I was about to delete that part. I don't switch TD's or FF's so am not worried about it .
I am glad you brought it up about the SB260..thats a good question and it does pertain as many think the SB260 is for any transducer.

And I am really not sure that if you indeed use the SB260 the same type of damage will not occur to the P66 if used.
I will have to look that up...

Last edited by semperfifishing; 02-09-2012 at 09:30 PM.
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