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wallyandre

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Everything posted by wallyandre

  1. From another forum and different posters: The display of the HDS-7 Gen2 is 640 x480 pixels, a 4:3 aspect ratio, on a 6.4-inch diagonal with LED backlighting. The display of the Elite 7 HDI is 800 x 480 pixels, a 15:9 aspect ratio, on a 7-inch diagonal with LED backlighting. We compute the screen area (A) from the diagonal (d) and aspect ratio ® as A = d^2/(r+1/r) and find HDS-7 Gen2 screen Area = 19.66-inch^2 ELITE 7 HDI screen Area = 21.68-inch^2 Dividing the screen area by the number of pixels gives the pixel density HDS-7 Gen2 pixel density = 307200/19.66 = 15,625-pixel/inch^2 ELITE 7 HDI pixel density = 384000/21.68 = 17,712-pixel/inch^2 The ELITE 7 HDI has more screen area and has higher pixel density than an HDS-7 Gen2. Some key differences between the two units: - E7 screen is larger (true 7") than the HDS7 (6.5") - HDS processing is FASTER than than the E7 by a large margin (little to no lag if doing multiple things) - HDS can be networked to multiple units and sonars, as well as radar/music and now WIFI, includes both NEMA standards. This opens the door for internal mapping if combined with other modules, something not available to the E7. E7 has NEMA 2000, and can only share GPS info - no transducers at this time. - The E7 HDI model includes Downimaging, the HDS7 G2 does not have this unless you purchase the SS2 module. - IMO, the screen on the HDS7 G2 is better than the E7 - it's smoother for lack of better discription, likely due to the more powerful processor. - The HDS7 G2 has access to 3D maps that may or may not be useful to you if purchasing a mapping card. E7 is flat mapping only (and slower on mapping refresh than the HDS G2 in my experience). Surface temp is available for both units via the transducer. Ultimately it comes down to what you want to use it for. If you were comparing the E7 to the Gen 1 HDS units, the processing power is closer, so it would come down to networking/integration vs screensize/integrated DSI. With the Gen2's there's a noticeable performance bump IMO, but again I consider the larger picture of how you want your system setup. For a one and done, budget minded unit the E7 is incredibly hard to beat. If you're looking to the future and more units, the HDS series.
  2. You absolutly need a hydraulic steering to run those AP. There is some models that can be run with a power steering and they are: Raymarine Sport Pilot (not very good and discontinued) and the Simrad AP 11 R or the AP 14R; but they are actually out of production and Simrad are suppose to come with something in a near future.
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