Thread: HUmminbird 777c2

Tom,
This would be easier if you could post an image of what you are seeing…
The unit is showing the fish but not as the arches that you would like to see. To show fish as an arch the unit (transducer) and fish have to moving at a speed that would allow them to show as an arch. Try turning up the Chart Speed on your 777c2 unit and/or slow your boat down.

Also try changing the Lower (depth) Range menu to a setting that brings the bottom of the lake closer to the bottom of the display. This will make better use of the available vertical display resolution to display the water column and therefore a better chance of showing the fish as arches. Example: if you are in 42 feet of water the unit may have automatically set the Lower Range to a setting of 60 feet. Set the Lower Range menu to 45 feet.

ok, will try these.
Thanks
tom

Greg,
What little trolling I do, is usually pretty slow. I have got the handbook back out and will change a few things like increase the chart speed, limit my max depth, and set my lower range. Since I don't fish in any water deeper than 50 ft, I was gonna set my max depth to ~~ 75ft, and my lower range ~50ft.
But if I fish in 25-30ft of water do I need to change this lower range to 30? or can I set it to 50 and be ok?

I will take my camera next time and after I change these settings if it continues I will post pics.

Thanks for all the information and time from everyone that has posted tips
Tom

If you set your lower range to 50 in 20 ft of water...there will be a lot a "bottom" showing on the screen and less "water column"...

You want to set this lower range to either auto or a few feet deeper than your actual bottom....

Auto will adjust to keep the bottom showing on the screen..but doesn't always give you the most water column showing...

Setting the lower range to a few feet deeper than your actual bottom depth will show the bottom on the lower part of the screen with more water column filling the screen above the bottom...

The only setback to setting the lower range is if you get out into deeper water than your lower range is set...your bottom will not show on the screen...then you have to adjust your lower range setting again...

thanks rnvinc, that makes sense.
tom

Originally Posted by tommyboyrn

is there a way to undo the upgrade where I can restore defaults and then do it all over?

I keep a SD card with the previous upgrade on it and a separate SD card with the newest upgrade on it...in the boat at all times..you never know when these mini computers are going to screw up with software problems..and the easiest way to overcome a glitch is to load the previous vresion of software and then load the newest version again....

Be sure to "Restore to factory defaults" before and after each time .....

You can download previous versions of your software here...

Login

Also, when loading software versions be sure and follow this procedure...

How do I download Software to my HB Unit using MMC/SD card?

I dont think my 777c2 has an SD card slot? does it?

Are there anyone else around here using a 777c2 with switchfire upgrade and if so could you post your settings for comparison.
Thanks
Tom