TerryEastTexas
Well-known member
I'm looking at the F19 and was wondering how it handles EMI as I hunt mostly around power lines. Also how does it compare with other machines on depth. Thanks.
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F 19 and EMI/Depth
- Thread starter TerryEastTexas
- Start date
Digger70pa
Well-known member
Electric fences really mess with it. It handles power lines ok. Not so much right under them though. I hunted with a friend around big high tension lines last year. It had trouble with that. I couldn't get with in 150 yards of them. I'm talking the big four line suckers. He was using a new Whites. He was right under them pulling out relics. Talk about a hopeless feeling lol.
dfmike
Well-known member
The depth issue has been discussed with no clear consensus. It depends on what you are mainly looking for and your ground (and possibly detector variation). I find depth more than adequate for my needs. Mine seems to be impervious to EMI. In 2 years of use I've had an EMI issue once. I could still use the detector but at a gain setting of 40 (It's always at 100 with no issue). Compared to any detector I have used and/or still have, it's been the most EMI resistant of the bunch.
The f19 has been a lot of fun for me. I like the vco sound along with the different ways you can set up the machine. It's really good at picking out targets in trash and may not be the deepest machine out there but it's very respectable for sure. I've not had trouble with emi's but haven't been around any electric fences... been by many power lines but can't recall being right under any. Good luck with what ever you decide. HH,Tom
TerryEastTexas
Well-known member
Thanks for the info everybody. I appreciate it.
One thing I don't like is the fact that in discrimination mode you might not even know EMI is an issue. To check EMI switch to all metal and listen to the threshold.
I guess the best thing to do is always start off in all metal mode, ground balance and listen for unstable threshold.
I would love to have a slight hum in the discrimination mode just to listen for EMI issues.
I guess the best thing to do is always start off in all metal mode, ground balance and listen for unstable threshold.
I would love to have a slight hum in the discrimination mode just to listen for EMI issues.
TerryEastTexas
Well-known member
Thanks markg, that's helpful to know.
TheHunterGT
Member
A F19 and 2x G2+....all 3 of them handle EMI better than anything I have used.
Depth on mid conductors is very good (10 inches on some)...high conductors good (7 to 8 on most).
Handles bad soil very well.
Depth on mid conductors is very good (10 inches on some)...high conductors good (7 to 8 on most).
Handles bad soil very well.
Mike Hillis
Well-known member
I have a pretty heavy EMI environment.
The F19/G2 does ok around my EMI. In my sites I could/can get the sensitivity On my old F19 and my new G2+LTD up to around 75 or 80 before the chatter is too much. A setting of 75 is mostly the limit. 80 is pushing it around here. There are a few places where I can get into the 90s but thats the exception and not the norm.
The F75 with DST is much better with the EMI, but again the F75 also has frequency shifting so that makes a difference. Quietest Fisher units in my sites are the F75 with DST in Freq 1. Thats stable at max sens.
Depth....get the 11" BiAxial coil. Its a 19kHz unit so it will go deeper on low conductors but the 11" does ok on larger coins. I run a 13" NEL on my G2 which is the same unit as the F19 and the 11" coil is right in there with it, depth wise.
Good luck,
HH
Mike
The F19/G2 does ok around my EMI. In my sites I could/can get the sensitivity On my old F19 and my new G2+LTD up to around 75 or 80 before the chatter is too much. A setting of 75 is mostly the limit. 80 is pushing it around here. There are a few places where I can get into the 90s but thats the exception and not the norm.
The F75 with DST is much better with the EMI, but again the F75 also has frequency shifting so that makes a difference. Quietest Fisher units in my sites are the F75 with DST in Freq 1. Thats stable at max sens.
Depth....get the 11" BiAxial coil. Its a 19kHz unit so it will go deeper on low conductors but the 11" does ok on larger coins. I run a 13" NEL on my G2 which is the same unit as the F19 and the 11" coil is right in there with it, depth wise.
Good luck,
HH
Mike
TerryEastTexas
Well-known member
THGT and Mike, thanks for the replies.