HDS 5 GPS accuracy

[Tenntomm]

I have both a HDS 5 and 8. For some reason the GPS accuracy of the 5 is not near as close as the 8. Both of the settings are the same the best I can tell, any Idea what might be casuing this. I really dont want to have to buy a GPS Puck that cost half as much as the finder just to improve the accuracy. Any suggestions?

[Cane Pole]

Do you have WAAS enabled?

[Tenntomm]

Yes

[Cane Pole]

I not sure. Next time out, turn the satellite view on. Check you EPE distance and GPS fix.

If you have time, turn both units satelite views on and compare the data. Might find something different.

[TITANSFAN2104]

Not to sure about Lowrance but what Ive read if one has the 4000 puck and the other has the 3000 or internal antenna it will be slower and less accurate , i believe

[jimp]

do you have anything in the way of the 5 preventing it from having a clear view of the sky, such as the TM head & shaft, maybe a rod holder & rods, even possibly you depending on the position/direction of the boat if you sit up front. If you can, try to raise the height of the 5 HU itself and see if that imroves anything. I have a HB 788 ci HD mounted on the floor up on the bow, and I get the donut at times, but have read where the "donut issue" has been resolved. I've thought/gonna figure out a way to raise the 788 up some off the floor and see if that improves my donut issue. They can be tempermental as all get out I know.

[CatFan]

Can you tell us how you experience the different accuracy? Is it coming back to a spot, or staying on a spot?

[TITANSFAN2104]

do you have anything in the way of the 5 preventing it from having a clear view of the sky, such as the TM head & shaft, maybe a rod holder & rods, even possibly you depending on the position/direction of the boat if you sit up front. If you can, try to raise the height of the 5 HU itself and see if that imroves anything. I have a HB 788 ci HD mounted on the floor up on the bow, and I get the donut at times, but have read where the "donut issue" has been resolved. I've thought/gonna figure out a way to raise the 788 up some off the floor and see if that improves my donut issue. They can be tempermental as all get out I know.

are you talking about a circle that comes up on your navigation screen?? The donut/circle I get is only when the boat stops moving and the gps can no longer get a heading so it goes to the donut ,basically showing no movement by the boat/gps. But you may also.be talking about something else.??

[Tenntomm]

Can you tell us how you experience the different accuracy? Is it coming back to a spot, or staying on a spot?

AN example would be i find waypoint with my hds 8 at the console and confirm I am on top of it with DI. Then throw a marker out at that spot. When I come back to that spot with the trolling motor it shows that I am 20-30ft away from the waypoint onthe HDS5 when I am actually sitting right on top of it.

[jimp]

are you talking about a circle that comes up on your navigation screen?? The donut/circle I get is only when the boat stops moving and the gps can no longer get a heading so it goes to the donut ,basically showing no movement by the boat/gps. But you may also.be talking about something else.??

that would be the infamous HB "donut", I can get the donut when longlining and the boat speed drops to .5mph, or so due to wind or current. The speed on the HB also varies alot from my HH Garmin and the HDS 8. All of 'em will agree, then the HB starts to flucuate while the HDS and Garmin hold steady speed readings. I'm thinking the HB is not getting a clear signal and gonna install a RAM mount to raise it up a bit and see if that resolves my issue. sorry for the thread jack