May be a stupid question, but why not buy a unit that has an internal antenna and has the option to connect to an external antenna as well? That way you can always add the external later if your not satisfied with the internal.
May be a stupid question, but why not buy a unit that has an internal antenna and has the option to connect to an external antenna as well? That way you can always add the external later if your not satisfied with the internal.
That is unfortunate about the larger models but my little Garmin 76cs has both options. It works fine in the cockpit but as soon as I take it below the fiberglass hatch impedes the reception so an external antenna might be a nice to have but not totally neccessary.Unfortunately, most larger chartplotters are either or.
That is unfortunate about the larger models but my little Garmin 76cs has both options. It works fine in the cockpit but as soon as I take it below the fiberglass hatch impedes the reception so an external antenna might be a nice to have but not totally neccessary.
I do have to ask though; how many sattelites must be displayed for an accurate position? My little unit can display up to 13 bars representing 13 sattelites shown in concentric circles on the display page. On those days (when 13 sattelites show) I am sure more would show if my unit had the capacity. They have many eyes in the sky here at 49 degrees north in the PNW. (potential smuggling). I would speculate that 3-4 sattelites would suffice and that a few extras might add to accuracy but I am skeptical about the need for 13+ sattelites. I guess government paranoia gives us great coverage along the 49th.