This rainstorm makes me crazy 
-This repeating pattern is always changing a bit, there are random 1/0 sometimes. Do you mean strip it when no signal is received or strip from incoming stream?
-The whole stream is received immediately. Each bit is received in: 1/16mhz = 62,5 nanoseconds
-You are right, but curently I have no ideas how to receive not oversampled data without noise.
A:Unfortunatelly I have no any datasheets for this station, because it's a quite cheap one: "Precision Weather Station" http://reviews.argos.co.uk/1493-en_gb/2554114/reviews.htm
A:Code is quite simple
void setup() {
Serial.begin(57600);
pinMode(40, INPUT);
}void loop() {
int sensorValue = digitalRead(40);
Serial.print(sensorValue, DEC);
}