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Turn That Phone OFF

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Seriously folks, I tell folks this cell phone issue all the time and here is a pretty good video about same..... Can really mess with the PI and ZVT beepers....

 

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I knew there was a reason I dont have a cell phone :) "stuck in the 90s" :)
Tom H.

 

 

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Some say turn it off.  I say don't take it with you!

If you have ever found one at the beach you will know how BIG the signal is from a cell phone.   It can be down 2 feet.  What pocket is not going to air test with a cell phone in it?

Mitchel

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Posted (edited)

I take a flip phone out hunting. and I dont turn it on unless I need It. not just for interference, I have other reasons like tracking.

AzNuggetBob

Oh BTW another nice thing about the cheapy flip phones is if you just take out the battery,Easy drop in drop out ,it really turns them off. other wise you'll get pings as the phone pings the towers even if OFF.

Edited by AzNuggetBob
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Great video. I'll be going airplane mode from now on. Saves battery and can still use the GPS function.

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I just shut mine off when using the PI or EQX 800 and all my other detectors. I find ya still hear interference when the phone occasionally checks signals or.... :89:

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Cell phones operate on Radio Signal using CDMA (code Division multiple access), TDMA (time division multiple access) , GSM or SIM technologies. All of these use radio frequencies. Modern digital phones transmit on only 1/10 of one watt while older analog phones transmit on 3 full watts. so older phones will interfere more than modern ones. even when you are not talking on the phones they are transmitting for two reason, first matching the time between tower and phone, and second tracking the location of the cellphone.This is normal operating procedure. when the phone is manually set in airplane mode it will not transmit at all it only listens. If the phone is still transmitting in any way while in airplane mode it is either defective, (likely corrupted software or it is tapped). Governments, and non government parties do this often as it is not difficult to do. many phones are designed to be tapped. For instance I can clone or tap or  most  phones in about 3 minutes. The simple way to check the phone is set it in airplane mode and hold it next to a turned on external computer speaker for a few minutes . If you hear it transmitting signal over the speaker  it is either defective or tapped. I always bring my phone for safety but always run it in airplane mode when operating my detector, or even sonar. When operating my magnetometers I can not  have any iron metal on my person including checking my shoes, hat and clothing buttons for any iron metal. most boots have steel in their  design and many buttons on clothing and ball caps contain it as well. Some of the dollar stores and garden centers sell tough,  strong all plastic hand shovels and plastic pasta  strainers that are perfect for working with detectors especially in the surf line.

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I seem to remember a demonstration of the Monster at an outing ... seems 'someone' or something was interfering  with the 'demonstrators' machine. He just couldn't get a good quiet ground balance! Ring a bell with you Mr. Southern? :inocent:

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