Grayscale?

[ck85abc]

How do you use it in reverse compared to grayscale? Also why would reverse be better?

I remember reading about how reverse grayscale is better, I checked archive threads but can't find it.

[ck85abc]

Also, what ping speeds you you guys use and why?

Considering a fishmark 320

[ttt]

ttt

[ck85abc]

Looks like someone has the same question as me.

[eyegetit]

I have a Lowrance X15-MT and an Eagle Ultra Classic. Neither manual mentions a reverse grayscale or ping speed. I always thought ping rate was a direct result of the chart speed setting. Higher the chart speed -- higher the ping rate. Again, neither manual mentions the actual ping rates of my units.

[ck85abc]

With the eagle fishmark 320 if you increase chartspeed the chart goes faster, if you increase ping rate the chart goes faster.

[Jim Carroll]

Ping Speed is the rate at which the unit sends sound pulses out into the water. With more echo returns, your unit can process and display more detail on the screen. In order to take advantage of this extra information, you should have your chart speed set to max. Some units will do this automatically. The downside of all this is the information spends less time on your screen so you need to pay attention so you don't miss something.

Reverse Grayscale on your X-15 is useful in some situations. It reverses the colors- fish are in white and the screen is dark. I like to use it when trolling at night where a bright screen can be a distraction and effect your night vision. It can also sometimes be useful in extremely muddy water.

To get the most out of your X-15:

1. Set the unit to run in manual mode for sensitivity and depth and adjust for conditions.
2. Turn your ASP to low
3. Ping and Scroll speeds to max
4. Adjust grayline to suit conditions
5. Put your cursor on screen
6. Set your Keel Offset

Do this and you will see far more than in "Automatic" mode. Jim Carroll #588

[ck85abc]

Thanks for your info, you made me think of another question though.

Keel Offset, what is that. I saw that as one of my options I could adjust.

Also, what if you are looking for biting fish and might travel anywere from 30-5 feet of water. Would it be better than to use a auto zoom feature or something?

[perchjerker]

Keel offset is a correction factor for the how deep your transducer is compared to the actual water surface.

Say for instance, your transducer is 2 ft below the surface of the water. Your depth will be less 2 ft than it actually is since the t/d is closer to the bottom of the lake. set the offset to 2 ft, it will now show the actual depth. Should be explained in the manual.

[ck85abc]

Thanks, easy enough.

This is alot more fun than reading a manual.