Eyes In The Sky

thelastpirate

Well-Known Member
Yes, I believe they can. FLIR is sensitive to temp differentials of less than 1/2 a degree. But conditions would have to be Ideal, late at night, and with the house all cooled down. THEN they could see individual "blobs" where they sit behind a wall. Put a dead air space between the interior and exterior, problem pretty much solved.
 

techgrower

Well-Known Member
Vent the heat through the drier vent. Thinking of the heat signature, I have a fire place on one side of house, drier vent on other as well as the stove, my girl has 2 kids, shes always doing laundry. and if I drove my hotrod and parked it in the garage it could get 275f as it hot soaked. My house would be lit up like a xmas tree.LOL
 

Jonus

Well-Known Member
FLIR can only see the outside of your house. In this case, your roof top. If the roof of your closet is the roof of your house then they may see something when your light is on.

If the roof of your closet is like any other one, then it will be the floor of your attic, or floor of the cavity between your room roof and the house roof.

There is nothing your closet can do then in that case to put a heat blotch onto the outer roof so therefore it wont show as a heat blotch. The hotter you closet gets, the hotter then entire roof cavity will get which is to be expected at night time and since heat rises the roof will be warmer than the rest of the house...
 

longbaugh

Active Member
I found some FLIR video on youtube. It'll give you an idea about what they can see and what FLIR video looks like.

WARNING: In this video, the cops are chasing a guy on foot and offs himself with a shotgun:
YouTube - San Diego Police Pursuit

but the chase happens in a residential neighborhood so you can see what kind of visibility they have into houses.

It may be possible, too, that they would use different imaging systems (or at least different sensitivity settings) if they were looking into houses. I dunno. Hope it's helpful.
 

rambler420

Well-Known Member
Thanks to you both. +rep for both of you.

I'm feeling better about the FLIR thing. There's an attic with an attic fan over the closet. The attic is the length of the house. The temp of the closet is only a few (maybe 5) degrees hotter than the rest of the house.

All these military choppers are bugging me out, though. Remind me, next time I move, to avoid living between military bases. I keep running outside and watching them fly over. I keep looking for the little dome on the bottom. Most are military, with what look like some kind of missiles on the side. I'm pretty sure the military has bigger fish to fry than little ol' me.
 

rambler420

Well-Known Member
Had an idea, though, the other day as I was making a fire. If someone had a chimney they didn't use, and the fireplace was big enough, it'd be an excellent place to create your grow. It'd take some modification to get it light-tight and reflective, but what better place to vent your heat than out the chimney? A roaring fire would be expected there.........

Too bad I like my fireplace to much to not use it as a fireplace.
 

Jonus

Well-Known Member
A lot of farmers use their chimneys to expell the heat, and seems to work fine. Ive always had a question though about how it would look under flir if they see a heated chimney during summer. I think that would raise some eyebrows.
 

rambler420

Well-Known Member
Point. Very true. Our summers get to the high 90's here. I don't think it could get hotter in the chimney than it was outside. Just keep the light cycle in sync w/ the sun and you'd be fine, I'd think.
 

Jonus

Well-Known Member
Yeah that would work but I guess a lot of people would use those cooler temperatures at night time for their lights on photo period and lights off during the hot days.
 

CrackerJax

New Member
Here's what you do if you hear a helicopter drawing down on your house. Run outside completely naked in your back yard. They won't bother looking at your roof... although you may end up on you tube!! :mrgreen:


out. :blsmoke:
 

rambler420

Well-Known Member
I realized the other day that the choppers I've been freaking out about are flying OVER my house....as in a straight line from point A to point B, with my house being in the middle. As long as they keep going, I should be fine. If I see them turn around and fly over again, or they start circling above it, that's when I'm screwed. :)
 

Jonus

Well-Known Member
I don't mean to confuse anybody. When I say FLIR, I am talking about current tech.

When talking about high res photography, it is still emergent tech. This has just been developed and the web has very little info on it. I read a blurb about a company whose name escapes me which just developed this tech. The DEA and Feds are very interested in it. It uses NEAR INFRA RED tech. and can take a high resolution facial shot in complete darkness from a telephoto lens. One can only wonder what they will do with it. The small article appeared in the Wall Street Journal but the focus was on the companies profitability not the technology per se. I will see if I can slog through their archives and find it....

Good luck,


out.:blsmoke:
The problem with near infrared is that it is easily detected because the human eye can pick it up. And like infrared, near infrared will not penerate anything but glass.

Ok so I decided to take a deeper look into this arena to see what the chaps at the Get Smart Control HQ have been up to.

If there is any tech being developed of used by the military to image through solid objects it will be based around the microwave spectra of the electromagnetic spectrum not the infrared range.

Microwaves have limited penetration capabilities, for instance most walls can be penetrated by radar signals, which are in the microwave spectra.

But if you go blasting radar down onto civilian housing these days, as opposed to 15 years ago, we're going to notice it. It will knock out anything using the microwave range of frequencies including the 2.4ghz spectrum, wireless telephones, wireless internet etc which of course was not around 15 years or more ago.

What them military chaps are playing with however is something called Ultra Wideband Short-Pulse Radar. Using microwaves in the same way the CDMA cellular system scatters packet data across a range of frequencies. Ultra Wideband Short-Pulse Radar is a variant on your basic storebought 7/11 radar systems ;). Obviously transmitting in 'short pulses'.

It will allow them to image through solid objects that aren't metalic without disturbing other systems using that range of the microwave spectra, and thats your basic see through the wall imaging system.

Why the cops keep on about FLIR has to be in my opinion a diversion duping us into thinking we would be protected by using thermal blanketing such as thermal protection versions of mylar and other ways of masking heat.

With microwave tech its not about heat at all. Like any wireless router can transmit to another room, thus the microwave signal it is transmitting penetrates through the wall. So it is with this pulsing system and it is being used to image objects through walls.

One product being offered around the military and in police circles is called RadarVision 2000, which by the way has been marketed to the police since 2002, and does just that, images through walls.


Allegedly this is RadarVision 2000 in action seeing through the soft skin of a truck.

Meanwhile since then they have been keeping everyone focussed on heat signature masking against FLIR...which will not do a dam thing to protect us against Ultra Wideband Short-Pulse Radar.

But before we all go live underground, there is a brightside to all of this....

Like anything you put in your microwave oven that causes all them wonderful sparks, Ultra Wideband Short-Pulse Radar has the same problem with metals. The problem is not in the tech, its the spectrum that will not penerate metal and instead fully reflects the pulses, as what happens in your microwave.

Solid metallic walls are completely opaque to the radar frequencies used in these imaging systems. The pulses are completely blocked even by aluminum foil such as that used in insulating houses and there is nothing anyone can do, not even all the trillions of dollars in the world, that will be able to cause the microwave spectrum to change its spots on that one.

Also it is still unkown to me whether or not they have developed something similar to RadarVision 2000 that can work at distance like from a helicopter. As it stands those devices and several variants that have entered the military, counter terrorism and police arena are still hand held and have limited range.
 

Jonus

Well-Known Member
What Ive described above, well the bit about the police/DEA use of these devices is still speculation on my part until someone can verify that they are using this range of equipment. Either way I know they are being deceptive about the abilities of FLIR and possibly causing misdirection about what is the best defence against their so called see through walls technology.
 

CrackerJax

New Member
Yes, near infra red cannot look through walls, however, my point was they can now take HIGH REZ pics in complete darkness. Telescopic high rez facial pics....no intent to confuse anybody. Still worth knowing... :lol:



out. :blsmoke:
 

Jonus

Well-Known Member
For sure Crackerjax, no argument there. The Thermal cameras now in C130s and Airforce Orions are nothing short of amazing in their detail. Infrared images showing faces of crew members standing on the deck of a moving swaying freighter - incredible detail.

The other key to the microwave imagers is that there is a restriction on distance the imager can be away from the subject. It was the intention when they developed this technology to not interfer with the 2 ghz spectrum by using generic radar which would give them more distance....

.....I have a sneaking suspicion that it was more about the fact that straight radar can be jammed by the myriad of wireless camera jammers that extend to the 2ghz range. So they've taken an idea from the GSM cellular networks CDMA technology which disperses the transmission over the wider spectrum to defeat these.

I would assume from the details of a white paper I've read on the technology that the user would be limited in distance to being right outside the wall of your house, meaning on your property.

Which going back to my original assumption that there is a distinct possibility the DEA level of police are now equipped with this line of equipment, would explain why they would require a search warrant to scan since they would have to enter property to do so, and not only enter the property but the scan will penetrate the walls unlike FLIR which just reads and images the temporatures of the walls or roof.

But this is all just theory concerning the RadarVision type scanners, what we need are real photos of busts that are taken under the RadarVision styled equipment, i.e. photos that show the grower through the wall lighting up a fat one while feeding their girls. That would then confirm the existence of Radar Imaging since that could not have been achieved using FLIR, and that would give good reason for serious growers/farmers to decide then to focuss defences on blocking that technology from seeing into their grow rooms.

That would also confirm my suspicions that the DEA are promoting their use of FLIR and withholding information about their radar scannign abilities, to convince growers that as long as their thermal signature is at a safe level that they are safe from discovery.

Up until then its just a theory.
 

NuteGreenwitch

Well-Known Member
Hell, while they're scanning your residence, why don't we just invite them in to f*ck our wives? I mean, if they wanted to, with the technology afforded by our taxes, they could sit outside across the street all night long putting on a show for their other buddies.

"FREE PORN GUYS! Hell, for kicks, we should blow the f*ckin doors when she's just about ready to climax!"
 
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