Marine Electronics Forum - Two Screens better than One?

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View Full Version : Two Screens better than One?


CMS_Sprint
03-23-2012, 05:07 AM
I've been researching a replacement for my aging Lowrance LCX-27 for most of the winter as part of a electronics upgrade for the boat.

I have been looking primarily at the HDS10 but as I've been looking at prices of things I started to think that maybe having 2 X HDS7 might be a better way to fly. By adding a network hub I could share information between all the attached accessories and I would have a built in spare if something went wrong with one unit. Long term I intend to add the structure scan and then budget budget permitting; radar.

The screen of a HDS7 is 1/2" smaller than my current unit, but with 2 of them I would have more screen space overall, and they would fit a little better in my existing CC (Keywest 2300CC).

I'd welcome opinions about a dual screen setup from the community regarding pros and cons of dual screen layout.

Thanks!


fshmn
03-23-2012, 05:45 AM
I have two screens on my boat.
I have a HB 997 SI and an HB 788ci.
I leave the 997 on split screen for side imaging and 2D sonar.
I leave the 788 on gps all the time, however, it is a seconday 2D sonar if I need it.

Originally had the 997 alone and was frustrated trying to search for structure while I wanted the side imaging and 2D to be displayed, but couldn't see the gps to keep track of my turning. Opted for the second unit and it just made things a lot easier.

Redundancy became a factor once when a fuse blew that I wasn't aware of existing. I have the two units on two seperate electrical supply circuits. I lost power to the unit that I use for gps and could not see that my fuse I was familier with had blown and didnt know about a "hidden" fuse my rigger hadn't pointed out to me. He thought I knew it was there. So, the second gps became useful for getting back home that day. When I was finally able to contact the rigger and found out about the inline fuse I didn't realize was in that circuit, I had it changed to a circuit breaker that was easier to access.

I believe the HD 10" units allow 4 display screens and that might overcome my original situation, but the HB units only allow 2 screens if one is the gps.

musella
03-23-2012, 05:50 AM
I like 2 units. I have 2 12" garmins. I leave GPS with radar overlay on one and fishfinder on the other. One of mine died near the end of the season and I had to send it out for repairs. Lost it for 2 weeks. I had to use one for those weeks and it feels claustraphobic:) But much better than having nothing for the best 2 weeks of the season!
BTW: Garmin replaced it for free (with a reconditioned unit) way after the warranty expired...said it was a known issue. I was very happy.


jensen
03-23-2012, 06:09 AM
I've been researching a replacement for my aging Lowrance LCX-27 for most of the winter as part of a electronics upgrade for the boat.
Thanks!
I'm pretty sure that the LCX-27 is NMEA2K. If so, network it in w/ your HDS and have two screens.

jetpilot
03-23-2012, 06:16 AM
Two screens is more than twice as good as one screen. I've done it both ways and would never go back to one screen.

Danny33486
03-23-2012, 06:17 AM
I recently replaced an LCX 10-4C with 2 HDS 7s. Here is why I did it this way
1) cheaper ( 2 rebates and sold both ducers that came with it I didnt need.
2) 2 HDS7 is 12.4 inches of screen vs 10.4
3) Looks better -
4) redundancy.
5) I also like the options of splitting screens and really customizing my view.
All you need is a network cable if you are running 2. I have the NEP-2 becuase I run my sirius weather through there.

Pics here : http://www.thehulltruth.com/marine-electronics-forum/408182-electronics-upgrade-before-after-pics.html

BACKTOTHESEA
03-23-2012, 10:08 AM
I personally prefer 1 large screen to 2 smaller screens. I have the room, so I am upgrading to a 7" and a 12" display.

When I make runs offshore in limited visability, I like to see the radar image on as large a screen as possible. Don't need to see the map offshore as there are no channels/obstacles to worry about and, while I generally like to see the sounder under way, I can live without it when safety comes first. If I was doing a lot of coastal/bay running, I may lean towards separate 7" displays if that is all I had room for.

krbernier
03-23-2012, 12:23 PM
i have 2-hds7 units. i love the set up. one is set for gps with radar overlay and the other is for the sounder.
when i am running to a spot far away i will split the sounder screen to display engine data also.
the 7 inch screens are plenty big enough for me. The nice part is that most of the time i never have to change anything. one for sounder one for nav.

ultra755
03-23-2012, 12:31 PM
want to go that route also. I have a Garmin 3010c. would like to put the sounder on a dif.screen and leave radar/gps on the 3010. How would I connect the two units together? the other screen does not have to be a 3010, I want a smaller screen but still color.

BACKTOTHESEA
03-23-2012, 05:25 PM
want to go that route also. I have a Garmin 3010c. would like to put the sounder on a dif.screen and leave radar/gps on the 3010. How would I connect the two units together? the other screen does not have to be a 3010, I want a smaller screen but still color.

If they are networkable and if you have room I will be selling my entire 3010c setup in about a month. radar, gps and MFD. The MFD does have some condensation (still clearly visible) when it is cold.

Let me know if you are interested.

Fcal
03-23-2012, 06:51 PM
Bought my 23fs last year and installed a C120w. Even though it's a 12" screen, things get small once you start dividing up the screen. Last week I added a C90w and radar. I will never own a boat with only one display.

triumphrick
03-23-2012, 07:04 PM
I have a pair of lowrance Lms series on my rig....

One model uses a gps puck on the t-top; the other uses an internal antennae.

I can flop back and forth between them if one or the other starts having an issue.

Pretty good way to go as far as I can see.

nevermind...
03-24-2012, 06:41 PM
I have to say 2 is better than 1...

I run a 740 and have to jump between the chart, sonar and weather. Drives me nutty. I believe I can overlay the weather on the charting, but I haven't got that far into the manual just yet. I really believe I should put my sonar on another screen and keep the chart in front of my face 100% of the time. The waters I float are anywhere from 1' to 40' and I'd really like to know when I'm motoring into trouble.

karlk1125
03-24-2012, 07:41 PM
Would you guys rather go with 1 12" touch screen or two 8-9" non touch screens?

abbor
03-24-2012, 10:06 PM
Two screens is a good idea. Gives redundancy and simplified operations.

I would recommend one HDS-8 and one HDS-5 instead of two HDS-7. HDS-8 has higer screen resolution, soft keys and two SD slots. One HDS-8 and one HDS-5 gives significantly larger screen area than two HDS-7.

When I installed my secondary boat two years ago I went with HDS-8 and HDS-5. Last year I added a NSS7 as well.

I plan to upgrade from HDS to HDS Gen2 this spring. My preferred two screen combo for this boat as of today would be a HDS-8 Gen2 and Simrad NSS7. HDS and NSS shares the same software platform and will thus integrate perfectly. By having a combination of HDS and NSS instead of two similar units you can take advantage of the strengths of both HDS and NSS.

When comparing NSS and HDS these are the differences to be aware. (comparison is valid for NSS7 and NSS8, HDS-8 and HDS-10, most of the comparison is also valid for the other models )

NSS:
The autopilot integration is so impressive that no AP control head is needed
Extremely intuitive and fast to operate touch and rotary controller interface
Will support CHIRP sonar

HDS:
Two SD slots
A bit faster menu response (with current software versions)
Supports StructureMap (NSS will hopefully get this in the next software release)
Better control over BroadBand sounder parameters
Better deep water sounder performance (deeper than 1000')
HDS-8 has 0.4" larger screen than NSS8

On this boat I'm typically using NSS as sounder and HDS as plotter, but when I need to create a route I aways use NSS due to the touch screen . The integration is such that a waypoint created at NSS will immediately appear at the HDS screen. The only integration missing between HDS and NSS is backlight synchronization.

abbor
03-24-2012, 10:31 PM
I recently replaced an LCX 10-4C with 2 HDS 7s. Here is why I did it this way
2) 2 HDS7 is 12.4 inches of screen vs 10.4


Wrong, area of a 10.2" screen is 25-30% larger than of two 6.4" screens.

The area of a 12.8" screen would actually be twice the area of two 6.4 " screens.

Danny33486
03-25-2012, 04:25 AM
Wrong, area of a 10.2" screen is 25-30% larger than of two 6.4" screens.

The area of a 12.8" screen would actually be twice the area of two 6.4 " screens.

Not sure what this means or what kind of math you are using but here are the numbers

HDS 10 = 6.24 inches x 8.32 inches = 51.91 sq inches of screen area

HDS 7 = 3.84 inches x 5.12 inches so for 2 units your screen size is 7.68 x 10.24 = 78.64 sq inches of screen.

78.64 > 51.91

Jaketti
03-25-2012, 04:57 AM
Not sure what this means or what kind of math you are using but here are the numbers

HDS 10 = 6.24 inches x 8.32 inches = 51.91 sq inches of screen area

HDS 7 = 3.84 inches x 5.12 inches so for 2 units your screen size is 7.68 x 10.24 = 78.64 sq inches of screen.

78.64 > 51.91

Wrong Danny, I hope you are not a teacher:)

It goes like this

HDS 7 = 3.84 x 5.12 = 19.66 and two units 19.66 x 2 = 39.32

Danny33486
03-25-2012, 05:29 AM
Wrong Danny, I hope you are not a teacher:)

I am not a teacher. I am an unemployed astronaut.

It goes like this

HDS 7 = 3.84 x 5.12 = 19.66 and two units 19.66 x 2 = 39.32

You are right I was doubling the height. I was like 6 AM when I read this. Either way I like the 2 screens better I feel like the 2 6.4 gives me a much better view than my old 10.4 in unit. looks better as well.

http://i1194.photobucket.com/albums/aa373/Danny33486/20120217_151717.jpg

GulfC
03-25-2012, 05:31 AM
I've been researching a replacement for my aging Lowrance LCX-27 for most of the winter as part of a electronics upgrade for the boat.

I have been looking primarily at the HDS10 but as I've been looking at prices of things I started to think that maybe having 2 X HDS7 might be a better way to fly. By adding a network hub I could share information between all the attached accessories and I would have a built in spare if something went wrong with one unit. Long term I intend to add the structure scan and then budget budget permitting; radar.

The screen of a HDS7 is 1/2" smaller than my current unit, but with 2 of them I would have more screen space overall, and they would fit a little better in my existing CC (Keywest 2300CC).

I'd welcome opinions about a dual screen setup from the community regarding pros and cons of dual screen layout.

Thanks!


Absolutely 2 screens. I have 2 HDS-8's but a primary HDS-8 or larger combined with a smaller unit would be fine. As mentioned before, HDS-8's and above have soft keys which I strongly recommend getting. I use one for a primary all the time and the 2nd unit is more of a display that would be fine without them. Beyond the obvious uses is the case for redundancy should one go out at just the wrong time.

Reel Kahuna
03-25-2012, 07:37 AM
If one has the Dineros, redundancy is good, otherwise, get one..bigger the better

BlackRose617
03-25-2012, 07:44 AM
If it were me, I'd go with 2 completely separate units. Real redundancy. Your hub could fail then you'd be out both screens, correct? Of course it's overkill for a 23' CC, but just my .02.



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