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Note To Omega Engineers

T

tabman

Active member
The next time you design a new detector or upgrade the Omega put separate controls for the sensitivity and threshold. Presently when you turn down the sensitivity in an attempt to reduce all that nasty chatter you're also reducing the threshold level which makes it nearly impossible to hear the high tones in D3 & D4 on mid to deep targets.

tabman
 
I wonder if that's what is happening when some say they aren't getting much depth. Great coin machine it's hard to hear the high tones at depths beyond 8". Maybe even 7".
 
The Omega is a real dream to use when there's little or no EMI.

I always hope that there's little or no EMI when trying out a new site, because I prefer using the Omega.

When there's EMI, you have two choices if you want to hunt in D3 or D4. Crank up the sensitivity/threshold knob and try to pick out the high tones in all that chatter or turn down the sensitivity/threshold knob to reduce the chatter and lose volume and depth on the high tones.

The high tone on the Omega is just about out of my hearing range to begin with.

tabman
 
tabman said:
The next time you design a new detector or upgrade the Omega put separate controls for the sensitivity and threshold.
Click to expand...

They already did that, it's called the Fisher F5 :thumbup:

I feel your pain , I also have the Omega (and had the F5, which is a great machine BTW, it just had too many issues in iron for me) and as you noted it's a great machine in the absence of EMI, although to be fair, it's not as sensitive as say my F75 LTD, which is practically rendered useless in EMI. I'm amazed how well the Omega does in heavy iron using the 11" DD, it's my go to machine for sidewalk tear outs, demos, and park scrapes where there's iron. It's also pretty hot on silver, I've pulled a few 8" deep silver dimes out with it, pretty good for a $500 detector.

HH,
Brian
 
Please do some testing with your settings and depth......
and what are the deeper settings ???
Then max the sens and check.
Then turn up the disc to like 61 and check.
My unit gets quite when the disc is 61 or higher...
Just asking...
Bj
 
I seldom have EMI problems since I normally have the 5dd on, but there is a freq adjustment on the Omega that can often reduce EMI when shifting thru the 3 choices. It may not solve your problem, but it would certainly be worth a go, no?
Tom
 
I'm happy with the Omega overall. The good outweighs the bad by a good margin. The first few times I took it out, it was in locations that had little or no EMI. Until someone has taken their Omega to an area that has high EMI, they won't understand the issue. I sure didn't. I just thought people were being overly critical when I read their posts about the Omega being unstable.

The good news is, I've got plenty of detectors that handle EMI well without significant depth lose. I just wonder how they managed to manufacture two similar detectors, the G2 and Gamma, that don't have a EMI problem?

tabman
 
tabman said:
The next time you design a new detector or upgrade the Omega put separate controls for the sensitivity and threshold. Presently when you turn down the sensitivity in an attempt to reduce all that nasty chatter you're also reducing the threshold level which makes it nearly impossible to hear the high tones in D3 & D4 on mid to deep targets.

tabman
Click to expand...

I can't comment on EMI as I haven't experienced it badly with the Omega. But I can say that if you are interested in depth then you should be using D1 or D2 (I prefer the latter). Try it out for yourself, clearly D1 and D2 get better depth than D3 or D4 (both air and ground). D3 and D4 will fool you into being deeper as they are amplified, but even with the modulation of D1 and D2, they go deeper. D1 is hard for me to use being that it is only one tone but if you are hunting in clean ground I would use it. I have used D2 exclusively in heavy heavy iron and as Cal said, the Omega is amazing there.

I'm quite sure the next coin machine from Teknetics/Fisher is going to knock our socks off.
 
The difference in EMI response between the Omega & G2 is due to the little known fact that the Omega is tuned hotter than the G2. I think the follwing quote is from a post by Basstrackerman who tested both machines:

"I know air tests don't say a lot but I did air tests on all of my machines...G2 at full sensitivity don't hit as deep as the Omega 8000 set at 55.I set both machines as high as I could for testing inside and still be stable. Actually, the Omega with sens set at 55 was hitting coins as deep as my MXT Pro (set to +2 almost max sens) was in air tests indoors. I was very happy with those results. I've never had a machine that would go nuts at high sens settings like the Omega does and was worried I wouldnt get the depth due to using a much lower setting...however I was very wrong."
 
I think everyone would agree that if they do a redesign on the Omega they would like to see separate controls for the sensitivity and threshold. I know I would.

Me pointing out some flaws in the Omega doesn't mean that I dislike it. It's a coin hound for me in areas with there's low or no EMI.:thumbup:

tabman
 
G2 and Omega works at different frequencies (G2 is higher), so this may be the difference in depth ...
 
aSaSSino said:
G2 and Omega works at different frequencies (G2 is higher), so this may be the difference in depth ...
Click to expand...

Yep. My Gold Bug Pro hits alright on silver coins even with it having the higher frequency. It's not quite as deep as the Omega on silver, but it will hit nickels and gold super hard.

tabman
 
I read recently that someone replaced the lower rod on the Omega with a Fiber glass one and supposedly took care of the noise.I read it one of the forums somewhere but IF it really works that would be OK! BUT...at the same time the Gamma is fairly quiet! If they are suppose to be so identical then I wonder why the O8 isn't! It could be the O8 is a little hotter than the Gamma!Others have said they put a RF Choke on the cable of the Omega and made it quieter.I also thought a while back that it might of had something to do with the cable shielding or something similar.Does anyone know if there is electronic shielding inside the control housing to protect the circuit board from external noise? Maybe that's why all of my detectors with Metal cases have always been super quiet!?and Heavy!

HH!
RonK
 
And Omega engineers please add a boost mode, a trigger, and a multi tone all-metal mode while your at it. That would be Omega perfected for me!
 
Woodstock said:
You know what I mean..don't you? Just another a crazy thought..from the northwoods, HH - Woodstock
Click to expand...

They would still sell T2's just fine. A lower freq model (Omega) with a muti tone all metal mode and boost wouldnt take away from T2's anymore than the f75, f70 and F75 ltd already do.
 
I agree the T2's will do just fine I guess I was just pullin' a chain, lol. But I think it would be great if they came out with a line of inline probes..that would be nice! Woodstock
 
it is "possible" the g-2 may be de-tuned, in that the electronic "gain" has been reduced
and the higher frequency (19khz) compensates for this!..in layman's language,the "omega"
"may" run "hotter",and be more susceptible to (e.m.i)....just sayin'

(h.h.!)
j.t.
 
in reality,those are "poor" choices,however one MUST find a "balance"
in the field,so perfectly understandable!..just sayin'

(h.h.!)
j.t.
 
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