RR3 RF receiver

hi everybody!
i'm new arduino, although i'm getting along great because have background in programming.
anyway, found rf receiver , car remote.
the receiver rr3-433, hooked so(the right square arduino):

and remote works on different frequency, 443.92, looks one:


so other day hooked receiver arduino , tried detect remote code can run them arduino.
i tried use digitalread in each iteration , serial read
it worked fine(with lot of noise , false '1's) , had go.
today hooked again , showed constant '1'. thought burnt receiver.
but when disconnected arduino(uno compatible board), showed pulse of 111110000011111000001111100000... couple of seconds , went constant '0' noises.

what did do? did destroy board? can fix it?

thank in advanced=]

those 433 ask radios generate lot of noise , seeing.
to determine keyfob sending, easier pull keyfob apart
and connect arduino data pin of transmitter in keyfob.
that way, noise removed, , clear indication of transmitter data
which makes easier decode.

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