Question - 11" x 8" RSD coil

[DeepDigs]

Hey guys! Quick question - I own 3 Tesoro detectors: The Cibola/Vaquero/Tejon. I just ordered the new 8" x 11" RSD coil. Would I benefit by sending, say, the new coil and my Tejon to Tesoro to have it "tuned" to work better with the Tejon, or should I be able to interchange the coil between the 3 machines with no issues, and get peak performance from each machine with the new coil? In other words - is there such a thing as "tuning" a coil to one particular detector for peak performance, or does it matter?

Thank you in advance for your input

 

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[Terry Soloman]

The only machine you need tuned is the Cibola, because the other two you can manually ground balance. Good luck with the new coil!

 

[DeepDigs]

The only machine you need tuned is the Cibola, because the other two you can manually ground balance. Good luck with the new coil!

Thank you for the fast reply Terry! I'm looking forward to some end of the year fun with this coil before the snow starts flying here in NE Wisconsin!

Perhaps I should send the Cibola and my 11x8/5.75 DD/5.75 concentric to Rusty over the winter and have them tuned to the Cibola. Come to think of it, I wonder why all the coils aren't tuned to the Cibola before they are shipped out new then? Isn't the Cibola the only unit these coils can work on that doesn't have a manual GB adjustment?

 

[pinenut]

Thank you for the fast reply Terry! I'm looking forward to some end of the year fun with this coil before the snow starts flying here in NE Wisconsin!

Perhaps I should send the Cibola and my 11x8/5.75 DD/5.75 concentric to Rusty over the winter and have them tuned to the Cibola. Come to think of it, I wonder why all the coils aren't tuned to the Cibola before they are shipped out new then? Isn't the Cibola the only unit these coils can work on that doesn't have a manual GB adjustment?

I believe that the Cibola gets tuned to the coil, not the coil to the Cibola. There's a small internal trimmer pot for ground balance that gets adjusted. You may want to put the coil on your Cibola, then see where the GB is with that coil and your soil. Sometimes the freq switch will get it close enough for a good balance. That freq switch not only changes frequency to lessen interference from other detectors, but will also shift the GB slightly positive or negative.

 

[DeepDigs]

I believe that the Cibola gets tuned to the coil, not the coil to the Cibola. There's a small internal trimmer pot for ground balance that gets adjusted. You may want to put the coil on your Cibola, then see where the GB is with that coil and your soil. Sometimes the freq switch will get it close enough for a good balance. That freq switch not only changes frequency to lessen interference from other detectors, but will also shift the GB slightly positive or negative.

Great advice, i'll try that. Thanks!

 

[Fletch88]

You can check/ set the gb on the Cibola by pressing the pinpoint button in and bobbing coil, just like you would on the vaquero. You may not need to adjust the internal pot unless it is way positive or negative with the RSD coil on. I do not have any problem with the Silver uMax going from the 8" concentric to the RSD coil.

 

[Stoof2010]

You might get lucky and find that in your soil it was off with the stock coil and the RSD actually is more balanced.
Mine came in pretty positive when I got it used. Figured if I was gonna chance going in I might as well go for broke and mod it lol.
Never hurts to just check and see.
Hopefully you get lucky!!!
Happy hunting!!

 

[luvsdux]

I've swapped different coils on my umax detectors without sending them in and the performance was acceptable every time. Theoretically tuning to the coil may give the best possible results, but unless you're going to use one coil nearly all the time on a machine that may not be required. Only problem I've had was some chatter when using a 10X12 concentric on my DeLeon. My thinking is try it before sending it in - you may be satisfied with that.
luvsdux

 

[DiggerinVA]

Even if you send it to Tesoro the "tuning" has more variables than just the detector and coil......they will "tune" it for average ground mineralization.....which still may not be right for your soil if you have really high or really low mineralization. I recommend just using the new coil on the Vaquero or Tejon where you can adjust the GB yourself at each area you hunt. And the 11x8RSD is a great coil!

 

[DeepDigs]

Even if you send it to Tesoro the "tuning" has more variables than just the detector and coil......they will "tune" it for average ground mineralization.....which still may not be right for your soil if you have really high or really low mineralization. I recommend just using the new coil on the Vaquero or Tejon where you can adjust the GB yourself at each area you hunt. And the 11x8RSD is a great coil!

Sounds like great advice! Can't wait to get it in and give it a go! Think I'm about ready to sell the Cibola - great detector but really can't justify keeping it when I already have the Vaquero and Tejon.

 

[pinenut]

Sounds like great advice! Can't wait to get it in and give it a go! Think I'm about ready to sell the Cibola - great detector but really can't justify keeping it when I already have the Vaquero and Tejon.

Always nice to have a spare if you take someone with you. ^_^