More F5 Gain or more Threshold?

[bmw50]

I have just recently purchased a Fisher F5 and love it. I still don

 

[ElginTim]

Sounds about right to me. As strong as you can run it without a lot of noise is the best bet for any rig. A guy I know started with a F5 and found some great stuff with it but moved up rather quickly. Seemed like a nice unit.

 

[marcomo]

I know F5 guru Mike Hillis has made excellent posts on this in the past and he's best qualified to answer this, but he's been going out with a high-class gal from Sweet Home lately and is probably really busy with her.

The gain is basically the power, a magnifier of the signals that increases or decreases the strength of those signals.

The threshold controls what size signal the detector will pick up.

Anything below 0 with the threshold and the detector is restricting smaller signals from being detected to some degree.

At 0 the threshold is totally open, above 0 threshold settings will increase the volume of all signals.

Mike H. made an analogy a while back that stuck with me. The threshold is the door that controls what signals get in. At 0 the door is wide open. Below 0 the door is partly shut. Above 0 threshold does not open the door more, it merely increases the volume.

A higher threshold is usually preferred when you're looking for very small targets, small gold for instance.

 

[Jackpine Savage]

Stability aside go with what you can tolerate re: the amount of valid signals coming through which will vary depending on the site conditions (trash ect.). In areas with a lot of small trash you can go with a lower threshold to reduce signals from the tiny stuf and then perhaps up the gain a bit. Of course you could just notch out the foil range for coin hunting but many prefer to hear it all.

Lower threshold settings should not cause much if any loss/depth on coin sized targets however the signal will be audibly weaker.

Tom

 

[BobbyBridge]

Hi folks im new here and to M D, Anyway yesterday I ordered the F 5 from kellyco after a month of research. The only main thing I am still having problems understanding in my studying is how the gain and threshold work together and the fine tuning aspect of these feachers and if and how the disc comes into play with these.
I have looked for videos and only thing that comes close are two on you tube, but are not enough info for me!
Dose any one have any other links on vids?
I have researched Mike Hillis posts but im still onsure on some things.

Regards
Bob

 

[Mike Hillis]

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