Sonne (navigation)
Consol was a radio navigation procedures for maritime and aviation.
History
Consol 1939 was developed on behalf of the German Experimental Institute for Aviation ( DVL ) in the C. Lorenz AG under the direction of Dr. E. Kramar and 1940 introduced under the name "Sun". The Consol beacon (300 kHz and 480 kHz) are submitted in the longwave range alternately their Morse code and Consol special characters that consisted of a series of dots and dashes. The range was about 1500 km over land and 3,000 km above the lake. During the Second World War, the " sun " stations were never attacked by the Allies because they were used by them for navigation. There are even reports that mention that the UK parts were shipped to Spain for the local German station to ensure the continued operation (F. W. Blanchard). After the war, was erected a few more stations, eg in Bushmills (Ireland). The Consol beacon were gradually shut down until February 1991 or continue to operate as a Non Directional Beacon.
Transmitter
A sun- transmitter ( Pusan 700/701 ) had 1500 watts of power. His three antennas are placed in a line and have a distance of 3 wavelengths. Ie Total station size 6 wavelengths. Depending on the operating frequency of the station so changed the distance between the antenna masts. At 300 kHz results in mast 3000m distance at 480 kHz it is 1875m. By phase-shifted feed of the transmitted signal in the antenna elements and keying of point- line sequences on the circulating signal originated.
Navigation with Consol
The use of this system required only a special Consol chart - there were alternatively panel works with which you could read a bearing from the number of lines included - and a simple long-wave receiver. 12 A and 12 B- sectors were drawn on the map around the Consol beacon radiating alternately. The navigator had only to about 10 to 15 degrees wide sector where he was, determined on the card and then set the frequency of the beacon in the receiver. After the Morse identifier (eg " LEC " for Stavanger to 319 kHz) he could dots or dashes hear that were slowly weaker and then went to a few seconds long tone, then more and more toward the other signal ( points or strokes ) was. A transmission cycle lasted depending on beacon 40-240 seconds. In the A- sectors could be heard after the Morse code points in the B- sectors strokes. The transition between dots and dashes was used to determine the position: The number of audible points gave the exact true bearing within a circular sector and could be read on the Consol card. By receiving multiple radio fire a cross bearing could be performed. The precision of the data was, depending on the position of the beacons, about 3 miles.
Consol sound like the Navigator hear him? / I