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Post by bigredtomatosauce on Nov 26, 2013 6:06:17 GMT 10
For small items, use an old microwave. You can find them for free at a council pickup or for $10-15 at an op shop. Get amongst them.
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Post by Ausprep on Nov 26, 2013 7:23:14 GMT 10
For small items, use an old microwave. You can find them for free at a council pickup or for $10-15 at an op shop. Get amongst them. Im using larger ammo tins, these also are only $10-15ea here in Newcastle. If i have to B.O they are able to be used rather than left behind. Great idea with the M/Wave though, i'd have never thought of it. |
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Deleted
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Post by Deleted on Dec 12, 2013 20:46:12 GMT 10
Do microwaves still need any insulation on the inside?
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Post by Ausprep on Dec 12, 2013 20:58:03 GMT 10
Do microwaves still need any insulation on the inside? I wouldnt think so. |
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Jason
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Post by Jason on Dec 17, 2013 17:05:07 GMT 10
Yeah I reckon a Microwave would be a good faraday cage - in the same way it limits radiation from exiting it should stop it from entering - and Wikipedia says so! A simple faraday cage can be made out of a metal tool box that is lined with an old rubber door mat. I have one that is kept in the shed which is another form of shielding in itself. |
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Post by Ausprep on Dec 18, 2013 15:27:27 GMT 10
Yeah I reckon a Microwave would be a good faraday cage - in the same way it limits radiation from exiting it should stop it from entering - and Wikipedia says so! A simple faraday cage can be made out of a metal tool box that is lined with an old rubber door mat. I have one that is kept in the shed which is another form of shielding in itself. A DIY with some pics would be great Jase! |
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Post by yeshi on Dec 18, 2013 18:18:15 GMT 10
For small items, use an old microwave. You can find them for free at a council pickup or for $10-15 at an op shop. Get amongst them. Im using larger ammo tins, these also are only $10-15ea here in Newcastle. If i have to B.O they are able to be used rather than left behind. Great idea with the M/Wave though, i'd have never thought of it. Would the ammo tin work? It has that section where the lid doesn't provide a full electrical seal. Nothing that wrapping it in al foil wouldn't fix! |
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Post by Ausprep on Dec 19, 2013 7:23:20 GMT 10
Im using larger ammo tins, these also are only $10-15ea here in Newcastle. If i have to B.O they are able to be used rather than left behind. Great idea with the M/Wave though, i'd have never thought of it. Would the ammo tin work? It has that section where the lid doesn't provide a full electrical seal. Nothing that wrapping it in al foil wouldn't fix! Im sure we've all seen the guys on DDP test this with a trash can and a running vehicle connected with jumper cables. I honestly dont think this would be a realistic enough test. The ammo tins, i'll get some pics up over the weekend. The lids on the ones i have are very tight and seem to seal well. I found them good enough to use as my FC. I have them lined with conveyor rubber and the contents at this stage are just hand held radios. To answer your question...i hope so. |
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shinester
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Post by shinester on Jan 1, 2014 12:29:32 GMT 10
It's pretty easy to test such devices, you put your phone in them and try calling it. If it rings, then the cage isn't working. You could also use a radio tuned to a station and put it inside your cage. Holes in cages [such as microwave ovens doors] will stop microwave [obviously] but may not stop even shorter electromagnetic radiation, because they may pass through the holes, depending on frequency, a solid metal box is better consequently.
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Jason
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Post by Jason on Jan 4, 2014 14:51:48 GMT 10
A DIY with some pics would be great Jase! Ive made a simple faraday box using a cheap lockable metal tool box from the local hardware store ($20 on special).  First I lined the base of it with a $2 rubber mate from the dollar shops to insulate anything I placed inside from the metal.  To increase the level of protection nesting suitably insulated boxes will increase the chance your valuable electronics are safe.  As shinester said you can test a Faraday Cage by placing a mobile phone inside and try to ring it, or use a radio and see if the signal breaks up when the lid is closed.  To top it off place another rubber mat over the box or items you have in there and close and lock the lid. Locking the lid helps to ensure the box is sealed and prevent any electromagnetic waves to enter the box, but it wouldn't hurt to stack something else on top to weight the lid down (tackle box, bucket etc.) to be extra sure. The benefit of a box like this is it can be picked up and carried by the handles if you need to move them in a hurry. The key to any faraday cage working is you need the metal container to be continuous so that any electromagnetic waves pass over the box rather than into it. You need the contents of the box to be isolated from the metal otherwise it becomes part of the conducting material. |
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Post by yeshi on Jan 4, 2014 19:12:23 GMT 10
Nice setup there Jason. Sealing up the joins with aluminium tape will assist in the RF going totally around the box and not inside, it works really well and conforms to most shapes/angles with ease. 3M aluminium tape |
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Jul 7, 2024 11:02:41 GMT 10
Jul 7, 2024 11:02:41 GMT 10
