Folks should learn and experiment with their detectors regarding EMI.
Is all EMI present heard via the audio when using a detector?? No
Can some of the EMI at times be heard via audio?? Yes
A couple thoughts here. Do you generally hunt alone or with a bud or 2.
Your bud's detector(s) can cause your detector to suffer from EMI.
The distance from which you operate your detector can aggravate this.
And remember even when you think you have your detector mitigated for EMI in an area,, with its surroundings-- even an aircraft can fly 30,000 over head and cause a temporary EMI condition.
And just because you don't hear any suspicious noise via audio,,,doesn't mean EMI doesn't exist.
Very possible to have 2 different tx freqs that seem to be clean sounding-- yet when comparing a signal using the 2 freqs,,, one signal may be appreciably better than the other.
And this EMI effect can be one reason why sometimes when we revisit a site, even using the same detector-- and be able to pull finds.
So don't be afraid to experiment in the field-- one never knows what they may discover.
Is all EMI present heard via the audio when using a detector?? No
Can some of the EMI at times be heard via audio?? Yes
A couple thoughts here. Do you generally hunt alone or with a bud or 2.
Your bud's detector(s) can cause your detector to suffer from EMI.
The distance from which you operate your detector can aggravate this.
And remember even when you think you have your detector mitigated for EMI in an area,, with its surroundings-- even an aircraft can fly 30,000 over head and cause a temporary EMI condition.
And just because you don't hear any suspicious noise via audio,,,doesn't mean EMI doesn't exist.
Very possible to have 2 different tx freqs that seem to be clean sounding-- yet when comparing a signal using the 2 freqs,,, one signal may be appreciably better than the other.
And this EMI effect can be one reason why sometimes when we revisit a site, even using the same detector-- and be able to pull finds.
So don't be afraid to experiment in the field-- one never knows what they may discover.