Marine Electronics Forum - Can I use Two Tansom Mount Transducers?

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Magnolia Sun
02-26-2012, 01:35 PM
Getting ready to buy a Garmin 720S (from Semperfifishing) I have a Standard Horizon CPF390i Chart/FF that I think I'm going to keep. I'll just have 2 chartplotters/FF's. It uses a P58transducer. The SH set up is new in the box & I'm having a new boat built.

SH Link:

http://www.standardhorizon.com/indexVS.cfm?cmd=DisplayProducts&ProdCatID=232&encProdID=2B458F55930A213844EE40118448FCDB&DivisionID=3&isArchived=0

Boat:

http://www.seawayboats.com/index.php?view=model_detail&id=6&model_id=6

Can I use a P66 for the Garmin 720S as well?

http://www8.garmin.com/marine/brochures/06545_Transducer_Selection_Guide.pdf#search=%22010-10192-01%22


TDC_Tom
02-26-2012, 02:09 PM
If the transducers run at the same frequency, they will interfere with each other and you will get a lot of noise. I had a Garmin GPS Map and then bought a Raymarine fishfinder and when they were both on, each showed a lot of noise in the water column. If you set one to 50 Hz and the other to 200 Hz, it may be OK.

Magnolia Sun
02-26-2012, 02:32 PM
If the transducers run at the same frequency, they will interfere with each other and you will get a lot of noise. I had a Garmin GPS Map and then bought a Raymarine fishfinder and when they were both on, each showed a lot of noise in the water column. If you set one to 50 Hz and the other to 200 Hz, it may be OK.

Ok...That's no good. Yes...both run @ the same frequency. I didn't want a thru-hull if I could avoid it. In-Hull only gives depth, so...looks like a thru-hull will be the answer for one of them.

Thanks for the inisght!


nsvencer
02-26-2012, 03:08 PM
Same issue with a thru hull and transom mount. Would still need ti run at different frequencies.

Magnolia Sun
02-26-2012, 03:15 PM
Geez...Ok....Then I guess I just use one as a chartplotter? This sucks! The Standard Horizon CPF390i is a pretty "standard" DF/FF. So....Maybe you'll use the Garmin 720S with a B264 transom mount & call it a day. So if I put one on 50 & the other 200 I would be ok?

semperfifishing
02-26-2012, 03:29 PM
No need to run both at the same time..use one with the dual freq. and then you can show a split screen.

Or if you choose just run both at different freq.



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