Great Circle Map of the World centred on the Kingdom
of Fife, Scotland. This shows you the shortest possible path from
Scotland to any other place in the world. As used by radio waves and
aeroplanes !
What parts of the world can you hear right now in Dunfermline ?
Click here to find out !!
Noise Blanker Effectiveness A noise blanker blocks signal processing in a receiver for the duration of each noise pulse that exceeds a user-adjustable amplitude-threshold. That process provides highly-effective suppression of narrow noise pulses, such as ignition noise pulses, if the blanking is done prior to highly-selective IF filtering. However, a noise blanker is much less effective and often even degrades the quality of received signals if blanking is done after highly-selective IF filtering. The reason is that all highly-selective IF filters ring after being excited by each noise pulse. The ringing widens each noise pulse, causing a noise blanker to block receiver signal processing for longer periods of time than the durations of the input pulses.
