Undesired signal generated internally by a receiver, either from oscillator leakage or microprocessor noise Birdies sound like open carriers but persist even when the antenna is disconnected
In golf, if you get a birdie, you get the golf ball into a hole in one stroke fewer than the number of strokes which has been set as the standard for a good player
If a golfer birdies a hole, he or she gets a birdie at that hole. He birdied five of the first seven holes. in golf, to get the ball into the hole in one hit less than par