Microwave shop-door sensor thingy?

[CookMySock]

Ok I'm trying to get my hands on one of those little black boxes that sit above automatic door openers. You see them above shop doors all the time. They use a microwave doppler unit to sense movement nearby.

Can anyone in the trade get me one?

many thanks,
Steve

[Usarka]

$50 it's yours.

[Warr]

What do you have in mind.. what are you going to turn it into ?

[Usarka]

You want to be careful around microwaves......

http://i290.photobucket.com/albums/ll266/unfabulo-us/funny_adverts_1/melted_ice_cream_truck.jpg

[98tls]

What do you have in mind.. what are you going to turn it into ? An automatic thread answerer.:niceone:

[steve_t]

What about a PIR sensor as per a house alarm or one of those sensor lights? Or are u doing stuff with radar detectors? :Pokey:

[CookMySock]

Hehe.. I want to modulate the varactor in it with a triangle wave and use it as an FMCW distance measuring doodad. It might also be fun to play with pointing it at moving things and listening to the doppler on a speaker. It would be a cool toy I reckon.

Steve

[steve_t]

Can you still buy a "Hot Wheels" radar gun from ToyWorld or wherever?
No doppler sound to listen to but a km/h reading. Not sure how accurate it is tho... and not sure if they still even sell them. Would be cool to play with tho

[CookMySock]

Can you still buy a "Hot Wheels" radar gun from ToyWorld or wherever?I didn't know there was a kids toy like that. I would be very surprised if they would allow such a toy these days. 24GHz is not really something you want to point at your eyes or your nads.

Steve

[davereid]

You are mad... but look at

http://www.intek.co.nz/product4.aspx?ProductID=4534
or
http://www.onsemi.com/pub_link/Collateral/MMBV2101LT1-D.PDF about 0.50c from Farnell

[YellowDog]

These guys are at the top of Queen St. by K-Road.

http://www.surplustronics.co.nz/shop/

They have loads of bits an bobs not on their website. A lot of it has been ripped out of shops.

[steve_t]

Here ya go

http://www.amazon.com/Mattel-J2358-Hot-Wheels-Radar/dp/B000EHLB0M

and

http://www.edparadis.com/radar/

[davereid]

Rat one from your neighbours sky dish.. the LNB in the dish has one in it,..

[CookMySock]

ooh, loads of good ideas there. This is the real mccoy, but I doubt I'll get one locally.
http://www.shfmicro.com/gunn.htm

Steve