R509 vs 38BL-9HR

[Snips]

Chewbucca17,
When I an out I will normally set the TVG distance at half the range, meaning if you have the range set to 600ft I will set the TVG distance at 300ft. But I don't mind seeing clutter on the screen, I would rather see to much than not enough.

Snips

 

[Chewbucca17]

Chewbucca17,
When I an out I will normally set the TVG distance at half the range, meaning if you have the range set to 600ft I will set the TVG distance at 300ft. But I don't mind seeing clutter on the screen, I would rather see to much than not enough.

Snips

Thanks snips. I'll try this. Am I right in assuming setting the tvg distance at say 300 feet with range at 600 feet, the preset tvg setting level is being applied at 100% between 300 down to 600 feet?

 

[Snips]

Chewbucca17,
The TVG distance is where the sounder is going to achive 100% of the front panel gain setting. Meaning if the TVG distance is left at the default setting (600ft) and you have the front panel gain (knob) set at 5 the sounder has a 2.5 receiver gain at 300ft. Below is a graph that might help.

Snips

 

[Chewbucca17]

Chewbucca17,
The TVG distance is where the sounder is going to achive 100% of the front panel gain setting. Meaning if the TVG distance is left at the default setting (600ft) and you have the front panel gain (knob) set at 5 the sounder has a 2.5 receiver gain at 300ft. Below is a graph that might help.

Snips

Thanks snips . So say if you were in 900 feet of water, the front panel gain setting would remain at 100% from 600 feet all the way down to the bottom in 900 feet?

 

[Snips]

Chewbucca17,
The front panel gain can be set from 0 to 10. The TVG distance is where the sounder is going to reach that setting. After that distance the gain is the same.

Snips

 

[Chewbucca17]

Thanks snips. Am hoping to get out in the boat in 2 days time. Will try playing around with settings and report back with some screen shots. Thanks again.