Thread: Need a little HDS help

I mostly stay on the 800

Just on a lark, I was mashing buttons and found the frequency button and mashed it. Night and day on the clarity...course, I was spider rigging at .2 up to .5 (because of dang wind) at the time. 10 to 15' of water. Maybe higher speeds lends itself to the 800? Still haven't sat down at the console and really worked with it while idling.

One other thing I noted is that I'm getting pretty good interferance at 2.5 on the Terrova. Got no issue at power settings above or below, but 2.5 just about fills the screen. Kind of hinky.

Wannabe...

On my Terrova I had to take it to a MK authorized dealer and get a ground installed to get the interference out.

Update on my interferance. Yesterday I was out and at 1.5 I was trolling along and caught a dink. While taking it off, I dropped the fish and it fell on the back side of the FF wiring and flopped around. Noticed my FF picked up some severe interferance. Realized the fish moved the wiring to the point of setting the Transducer cable on top of the power wire to the TM. Moved it and no intereferance. Checked again on the higher settings of the TM and no interfereance as long as I maintain a seperation of an inch of so. Figure that must have been what was giving me the interferance from before.

Also, I changed the frequency back and forth for the structure scan and it seems that at certain speeds 455 is best and higher 800 is best. ??? Ain't figured that out yet, but I finally took a look at it while idling with the outboard and the pic is fantabulous. Still not crazy about the dark edges at increased ranges, but also turned the auto range on and it seems to do a nice job of making me forget about the darkness out past a certain range for a given depth. Prolly will leave it on auto range permanently.

Wannabe...

We need a class in proper wiring and instrumentation installation. Classes should start with the boat manufacturer and then the dealer. Signal wires should never run parallel to power wires, but we have no choice in many cases.

Originally Posted by Wannabe...

Update on my interferance. Yesterday I was out and at 1.5 I was trolling along and caught a dink. While taking it off, I dropped the fish and it fell on the back side of the FF wiring and flopped around. Noticed my FF picked up some severe interferance. Realized the fish moved the wiring to the point of setting the Transducer cable on top of the power wire to the TM. Moved it and no intereferance. Checked again on the higher settings of the TM and no interfereance as long as I maintain a seperation of an inch of so. Figure that must have been what was giving me the interferance from before.

Also, I changed the frequency back and forth for the structure scan and it seems that at certain speeds 455 is best and higher 800 is best. ??? Ain't figured that out yet, but I finally took a look at it while idling with the outboard and the pic is fantabulous. Still not crazy about the dark edges at increased ranges, but also turned the auto range on and it seems to do a nice job of making me forget about the darkness out past a certain range for a given depth. Prolly will leave it on auto range permanently.

Wannabe...

what you are saying about different speeds and different frequency. i agree i to have noticed the difference

Originally Posted by Cane Pole

We need a class in proper wiring and instrumentation installation. Classes should start with the boat manufacturer and then the dealer. Signal wires should never run parallel to power wires, but we have no choice in many cases.

that would be great ,not enough help coming from the manufactures .in some cases space is limited but they could do better

800KHz should be better for clarity. 455KHz covers a longer distance.