I'm living about 20 miles inside the Oregon border from Idaho. I mainly hunt rangeland and mountainous ghost towns and similar older-use places which puts me far from a salt water coastal environment, however, I used to live in Portland Oregon and made periodic trips to the very iron mineralized coast at Seaside and other locations. I haven't been able to get my Anfibio Multi to a coastal beach yet, and might not until summer arrives and I adventure westward, but I am sure it will handle it fine.
Which mode were you using? What was the GB setting number? How much Discrimination were you using? And which Frequency did you want to hunt in?
I remember hitting the beach about 10-15 years ago with White's Classic III SL and IDX Pro models that had Bill Crabtree's modifications to give me manual GB ability, and those models had a full-range
(ED-180 or All Metal Accept capability) Discrimination adjustment. There were some local fellows who mostly used Fisher CZ's to work the beach and we did some comparisons which left them surprised. I set the detector at the minimum Disc. that would accept ALL metal targets, ferrous and non-ferrous. Then I adjusted the manual GB for the highest concentrations of black sands at the beach. Once the dryer sand with intense iron minerals had been taken care of, I moved to water's edge and found some holes that were filled with the lower-conductive wet salty water.
There I bobbed the search coil from about 6" down to an inch above the water in the Disc. mode and listened to the response from the conductive salt. While bobbing the coil I very slowly increased the Discrimination just to the point where I rejected the low-conductive salt response. The Ground was handled. The wet salt water and wetted sand was handled. I hunted away and, in many side-by-side comparisons on located targets, I have the better response.
I've used this technique with several different makes and models of VLF Discriminators with success. I have used other Nokta and Makro models on the beach without much of a problem so I figure the Anfibio Multi should be able to do okay as well.
Monte
"Your EYES ... the only 100% accurate form of Discrimination!"
Stinkwater Wells Trading Post
Metal Detector Evaluations and Product Reviews monte@ahrps.org ... or ... monte@stinkwaterwells.com 503-481-8147Regular-Use Outfit: Nokta / Makro: FORS CoRe, FORS Relic, Racer 2 and Simplex+ .. Teknetics: T2+Tesoro: Bandido II µMAX and Silver Sabre µMAX .. White's modified IDX Pro .. XP: ORXA Handy Loaner Unit: Fisher: F-44Headphones: Killer B's 'Hornet' -- Detector Pro Gray Ghost XPNote: Detectors are listed alphabetically by Brand. Models are chosen based on search site conditions.*** All working well today to make memories for tomorrow. ***