KD0CAC

Can not register , - says prospector detector - is not a valid referrer ?   

Lot of good info on the last link there .

Thanks John

Heading down that way in Jan. with a friend - he likes to throw fish back , catch & release .

I like to catch & eat , so while he's out on his boat throwing fish back , I will  be on the beach looking for goodies with my new NOX 800 .

I am trying to do advance research and having issues with finding some rules on detecting - I have found the usual general , no national parks , limited state parks , check local city/county , then the big general - all beaches are public within the mean tide area [ with vary few beaches being private ] .

I've looked on FL site and it seems to be ambiguous on purpose , something like all beaches within the mean tide , excepting wet sand .

The " excepting wet sand " is the big bug-a-boo ?

Next is almost no info [ so far ] in the water , limited to 10' with the NOX 800 .

For future deeper with another underwater detector , I would like to use down to less than 30' do not have to deal with decompression , but I read something that said out to 3 miles ?

After 3 miles you need to lease an area , kinda like filling a claim with gold mining , use to do that in No. Cal. in the 80s & 90s , underwater suction dredging 😉  ?

Maybe more because of my computers - the isue with going back to older versions , I do get buggered by updates .

So like to see that it is possible to roll back , thanks .

I also like to dig all targets and learn how to read the tool .

At this time [ low income ] I have to make my one detector - NOX 800 , be the best / only detector there is , maybe some day in the future I can own more than one , but for now it was a stretch to buy this one , so far I think I made the right choice , also bought the Garrett AT Pro pin-pointer .

Going to be trying salt water beaches for the 1st time this Jan. FL for a few weeks with a friend - he will be on his boat that I will help look after and he will fishing and throwing everything back [ sick puppy 😉

While I will be on the beach looking for goodies , and later go on the boat to play with the Bermuda triangle .

Late , who knows when , I will head back to AZ & CA looking for gold new-gets , use to do dredging in No. Cal. 80-90s .

If I find enough , I will get back to owning about half dozen detectors .

Thanks all , I can not disagree with any of the above .

How to try older versions / reload old version to see for myself ?

Thanks 

If you give up , there is a group of metal detector types [ us +] that use the net and offer there services to the general public as independent searches .

Once you get to the point that there is value , anyone can join , find stuff and make your own deal for the service .

https://theringfinders.com/

Without seeing a circuit diagram it's hard to say .

Generally we are dealing with a transceiver - the box & 2 antenna systems - 2 coil windings .                                                   I say antenna systems because an antenna is 1 component in a system , the feed-line [ the wires ] are another component , and so the box another device in the circuit .

So this is RF - radio frequency , that means tuned circuits - every component is tuned to every other component in that circuit .

You change something in the circuit , you have to check for the tune of the circuit [ calibrate / measure ] and retune as needed .

Without more info on the hole circuit and the ability to test for tuning , you can't really tell how small a change will affect it .

Some electricians call RF black magic 😉

I need to frequently switch from right to left hand . 

Thanks , not in Fl yet , dropping the boat off in Kansas salt mine for storage in a week or so , then in Jan. picking it up to take to Fl .

Trying to avoid towing boat in snow , then my friend will be throwing fish back , and I will keeping what I find from the beach 😉

In the early 80s got into underwater suction dredging in No. Cal. mostly in the Sierra's , towards the end early 90s I picked up a detector , a Garrett , was just getting use to it at parks and got out of Cal. back to MN .

Kept telling my self I was going to get back to Cal. to mine again , but then Cal. banned dredging , took a lot of motivation out of it .

But I did find a great metal detector store in  the area Metal detectors of Minneapolis , and the owner had a lot of knowledge , and I bought a bunch of detectors including pin pointer , a couple of Whites machines one of the bigger general detectors , and a gold machine , then a diving unit from Fisher and another I do not remember .

Manly went around parks & beaches with my German Sheppard - that way we both got a good walk in 😉

Then a couple yrs. ago had a fire , lost all detectors and or about $250,000 in tools & equipment .

Now also on disability , and Gillie - the dog ran into the end about 13 yrs. / starting to sound like a country western song 😉

Well bought a Minelab Equinox 800 from the same shop , dang I stopped by and he had a used one with 2 1/2 yrs. of warrantee left for $700 , I went home to get my saved coin stash about $500 and more stashes and when I got back to the store , the used unit was sold , but he did have a new one in stock . 

 A couple weeks later I went back to get a pin pointer , we both agreed that that the Garrett Pro AT was what I wanted , hay it was on sale too 😉

Now taking a friends boat to FL , I'm not into fishing & throwing back - I'm a catch & eat kind of guy 😉

This will be my 1st salty beach doin .

Oh and we were going to go looking for the bermuda triangle and look for lost stuff - dang the Equinox only goes 10' deep .

Don't forget - if you want a store front near by , buy local .

Think about how many interests you have had over time , and they'er fewer independent stores you can goto for too many things , discounting franchises .

I took too long [ a week or 10 days ] thinking about a used one at Metal Detectors of Minneapolis .

Went back & bought a new Equinox 800 without acc. 😉 a week later bought a Garrett Pro Pointer AT and there was a sale on the pointer I wanted .

Been buying from this store for 15+ yrs. 

A lot of info from having someone to talk to face to face , works here too faceless to faceless , I like when all the sources agree on , here and my local store .  

Thanks Chase ,

Since I just got the Nox 800 , I have not been tuning , just in presets on these fresh water beach's I mostly work with Parks 1 & 2 - I did do the noise balance , but may have forgot when switching from Park 1 to 2 .

As I get to know the detector later I will adjust settings and build my own profiles .

I've been spoiled by ham radio , most equipment come with wiring diagrams / schematics spec.s etc. -- unlike almost any other consumer gear .

I do have a lot of test gear , but mostly oriented to ham bands , but then look at adding outside ham bands to work on WIFI , blue tooth , but that means new / more expensive gear , mostly look for broken test equipment & then learn enough to repair , get to have fun twice that way .

Also mostly self taught books & internet .

I may be wrong , but kinda keep the idea of motors , magnetic & edde currents  to imagine how metal detectors work . 

Thanks again John

Thanks Steve , I'l check that sight out .

I used to hang out on a few others , not so much these days .

https://www.goldprospectors.org/

http://www.goldgold.com/

A lot of changes since then , I was doing mostly underwater suction dredging in No. Cal. in the 80s & 90s .

Did not get into metal detecting until near the end of that , closing down dredging in Cal.

One of these day , get back to snipping with detector in Cal. in summer & the southwest in winter , right now stuck in MN.

In my case there are no visible sources , cell towers , power line etc. , I thought of my cell phone , which was on the other side of me from the detector , and I set it down on a picnic table about 50' - 100' from  where I was swinging .

Of course there are many sources of EMI , I was hoping that some specific / known frequencies were the cause ?

In ham radio we deal a lot with this issue and in doing we note the frequency being use or interfered with HF , UHF , VHF , then use various gear that operate on those frequencies to find , as an example for HF [ high frequency ,

The copy & past didn't work to well , the band meter should be over the 160 column , MHz over the 1.8 - 2.0  column 

One device a common transistor radio set to AM is used a lot .

Not sure if some of the comments meant this , but many misunderstand that not all RF - Radio-Frequencies affect all electronics , there has to be some resonance between the transmitter & the device being affected , depending on a number of factors , quality in design  , in both the transmitter & device receiving / being affected  , one of those is if chineeze junk that operates outside of there intended bandwith , called a number things like spurious emissions -

A spurious emission is any radio frequency not deliberately created or transmitted, especially in a device which normally does create other frequencies. A harmonic or other signal outside a transmitter's assigned channel would be considered a spurious emission.

Now have to add to one of my things-to-do-list 😉

Bring out some extra gear to pindown some of this ,

A phrase for MA & PA KETTLE - " I'l have to fix that one of these days "

Dang and now winter is near - do not want to dig in frozen ground , and do not think I'l make it south this yr. , DOGGEY DEW   

Thanks getting familiar . 

Rob's link ?

New here , not sure " Rob's forum " that I know that one , at least by name yet .

A link ?

Thanks John

Just bought a new Equinox 800 & Garrett AT Pro pointer 

ColonelDan 

Or others on EMI

Not familiar with that beach  , I imagine a large open area ?

Where would EMI be coming from ?

One of the closest fresh water beaches near me MN , I get what I think is EMI - a semi steady multi tone , almost like rattling , even when just setting the coil down flat with no movement , a little less with no movement .

This is in Park 1 & 2 after noise canceling .

Another hobby for me is ham radio , also do component level board repair , so wandering what frequencies affect this detector , have had my new Equinox 800 about 2-3 weeks .

I must have missed it - factory reset , update & reset again .

It makes sense , but I have not come across till this post , I have read bunch of posts on at least 2 forums and a few videos .

But I did a reset the last time I used it , then did the update yesterday and have not used since the update , but some time between . 

1st since buying new from a local store , have not read rule to see if linking sources ?

Digging vary little trash [ except when digging all targets to calibrate targets , new 800 machine to me ] as compared to my last detectors , 10-15 yrs. old lost in a fire .

I am a ham radio operator , and one of my handheld water proof radios has the same issue - pressure difference from ambient air , stiffens the membrane over the speaker , then that affects the speakers ability to work correctly .

This can happen for several reasons , in transmitters [ vs. just receivers ] the amplifier transistor heats up & the heat creates air expansion --- stiffening that membrane over speaker , to release the pressure difference , just like the metal detector , is a sealed unit , the speaker cover once loosened equalizes the pressure / normal sound .

Same with elevation , a change in elevation from the last time it was open , driving or flying .  

A thought on leaks & prevention .

In every other industry machining , automotive etc. a little lube - just enough to make contact areas wet / smear on with finger tip , or with a small brush .

Nobody in any of the above industries assemble parts & seals without a little lube in the seals --- especially any seal that is sealing moving / rotating parts , in auto transmissions there are lubes made to mix with ATF - Automatic Transmission Fluid , same with engine parts a little engine oil , etc.

With the metal detectors [ without knowing the chemical makeup of the seals ] I would suggest petroleum jelly - it is mostly inert & should not effect seals or electronics .

First time I saw it - a video that is totally lacking in any info / and is just hype .

Maybe adding to the cost with no redeeming value .

Kinda takes away from a brand I valued , or I would have more interest in a brand that does not use hype .

Still saving up for a 800 though 😉

Except to go deeper .

I've been looking at the Equinox 800 , the main hold off is the depth range .

Wanted this detector for general searching & gold on land , and think the other Minelab Excalibur II is lacking for both uses ?

I did dredging in No. Ca. 80s & 90s , and would like to use before digging / dig less , and having a detector that could go deeper would be a big help .

Can not afford to have too much tied up in detectors , until I find more nuuggets ?

Had fire and lost about 5 detectors & over $200,000 tools & equipment , no insurance , so hard to recover at 65 .

Hay folks , 

New hear and looking to get back into detecting , did very little , but was adding detecting to my mining / dredging 70s-90s northern CA , started with dog walking & learning - when not near any gold fields MN .

Had fire last yr. or so , lost a bunch detecting gear .

On the leak / fix issues , I do electronic repair - board level component diagnostics & replacing , surface mount / micro soldering , laptop , ham radio , test equipment .

With out having those connectors in hand to compare , I would suggest finding a source of solid nickel - cut / file / shape to fit .

You can also use copper , shape to fit & then give a coat of solder , solder protects copper , never use bare copper , and if you really want to get fancy , use a car battery & electroplate with gold , a $40 gram of gold will do more contacts then you will ever need .

To prevent , make sure to use some vaseline or silly-cone , sounds like some may have contact with detector manufactures and can ask what viscus fluid will help seal - but not degrade the factory seal .

In the automotive bis. , did that to , we use the same base as what was in the container - engine / oil , gearbox / gearlube , autotrans. transfluid base oil or grease .