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Grady223 · 05-27-2010, 01:34 PM

Anyone using the Standard Horizon CP300 or CP500? I am considering one of them for my boat. Also, any experience with internal antenna vs external? Is there a noticeable difference between the two?

05-27-2010, 01:34 PM	#9
Grady223 Senior Member Join Date: Apr 2004 Location: New Hope, PA & Barndoor Island Posts: 465 Thanks: 93 Thanked 24 Times in 18 Posts	Standard Horizon Anyone using the Standard Horizon CP300 or CP500? I am considering one of them for my boat. Also, any experience with internal antenna vs external? Is there a noticeable difference between the two?