in the past i had the 11" coil, but it became faulty.
i have some places with some medieval coins, and roman coins where i get some coins a little deep with the hf coil, and now i need a deeper coil.
so... wich is the best choice? buy a used one 11" or 11×13 coil, for something around 150-200€, or buy a new x35 coil? does it worth the x35coil?! or the old coils are enough?
i have a third option, buy a used detector with a price around 300-350€.
so... what is your opinion? and wich is the best option, and why?
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XP Deus I use the HOT programme on 17khz, reactivity at 2.5 on v5.21 with the X35 11” coil
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The 13 inch is rubbish , don’t ever go down that route .
Ground coverage is the same with the 9’ and 11’ as the lighter 9’ swings a bit faster so covering the same area as the heavier 11’
Also, the 9’ coil pinpoints and locks on better than the 11’
The smaller coil is a joy to use .
Bigger isnt better with the do deus , it’s just another way they temp you to part with a LOT of money .
I personally don’t believe going 25khz or higher has any advantage over standard 17khz on the uk low mineralisation soils, our uk earth is iron laden and 17khz is ample for separation .
Saying that, I will be buying a x-35 9’ coil when I don’t have to sell a kidney to afford one ...just to see if my hunch is right .... or not
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To get greater depth, you'd need to use either the Hot or ultimate programs, based on the Deep program. I'd drop the frequency down to 11khz, keep the coil as low to the soil as possible and swing slow. This will be picking Roman and Medieval coins up at a depth of 10-12". Caveat - depends on the ground conditions.
With the X35 coil, you could also try taking the frequency down to lowest - 4khz, offsetting it down further to 3.7khz then using the boost function. Increase the sensitivity as high as your ears can stand - you may miss some very small finds, but you'll get some great depth, and won't be missing the silver.
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