Radio Noise?

[Niffler]

I regularly hunt a park beside an active yacht harbor. The park gets constant tourist traffic and is always rewarding. I hunt mostly by ear and run 50 tones, high trash. But, despite noise cancelling, my CTX3030 often sounds like a calliope, even when I leave it motionless while I dig targets. At the same time, the target symbol will continue to jump all over the screen. The park itself has a layer of post-silver imported topsoil over years of marine and manufacturing trash including lengths of abandoned chain and nail-filled ash from when the town burned over a century ago. It also has electric lighting for evening activities and electrical feed wires for power to the docks. In addition, most of the yachts monitor or broadcast on VHF marine channel 16, many have single sideband units, and many also have radar running even while tied up for fuel or supplies. The result, I would guess, is an electrical fog which I'm hearing. Even so, my 3030 will lock onto a good target ten inches deep. My question is, can noise cancelling eventually handle the constantly bouncing signals if I keep rerunning it, or should I try reducing sensitivity until the signals settle down?

 

[mblemmy]

if it falsing tones than i would try manual sins. and lower till it subsides. as others have done just experiment.... try deep off, high trash on, even different discrimination patterns seem to make a difference.

good luck !!

HH

 

[southernexplorer]

I have had no problems with EMI on the CTX even under a tranformer on a pole but you may want to try manual noise cancel instead of auto. With all the different interferrence the machine is seeing it may have a problem selecting the best channel. On the GPX4800 I can often tweak the setting manually that auto chooses and get it quiter than what auto selects.