radiogoniometer造句

• To automate this step, an electrical repeater was added to the radiogoniometer dial.
• The angle of the beam was combined with results from a radiogoniometer to provide a bearing.
• The correction is never perfect, the precise angles had to be experimented with on every radiogoniometer.
• For this reason a variety of systems were used to decrease the sensitivity of the radiogoniometer to mis-tuning.
• Primary among these was the aperiodic aerial concept, which described the mechanical layout of the radiogoniometer's internal wiring.
• The operator " swung " the radiogoniometer looking for the peak or minimum reception, as before, and noted the angle.
• In 1917 Frank Adcock was trying to solve the problem of making large antennae suitable for use with the radiogoniometer at even the longest wavelengths.
• Since this was fixed as part of the construction of the radiogoniometer, it was simple enough to correct for this simply by moving the pointer.
• These were initially delivered without a CRT and required longer to reliably determine direction using a manual radiogoniometer, but they could be upgraded as CRTs arrived.
• The signal was used to switch the input to the receivers from the range antenna, to output of the other two antennas mixed through the radiogoniometer.
• The output of the selected antenna on all four towers was sent to a single radiogoniometer system ( not Watt's own huff-duff solution ).
• The ability to inexpensively process radio signals using microcontrollers allowed pseudo-doppler direction finders to take over most of the radiogoniometer's remaining roles from the 1980s.
• This modification added a set of vertical antennas and a new elevation-measuring CRT to read them, along with a radiogoniometer that allowed the vertical angle to be accurately measured.
• The switching system was modified such that the range was sent to the upper line for 2.5 milliseconds ( ms ), and the range and radiogoniometer signals for 7.5 ms.
• Earlier RDF systems used very large rotating loop antennae, which the B T system replaced with two fixed antennae and a small rotating loop, known as a "'radiogoniometer " '.
• When connected to the radiogoniometer, the output on the display was now effected by the relative signal strength of the two lobes, rather than the relative strengths in X and Y in the horizontal plane.
• To convert this to the real range on the ground, the plotter used basic trigonometry on a right angle triangle; the slant range was the hypotenuse and the open angle was the measurement from the radiogoniometer.
• The signal from the selected antennas on the receiver towers were fed through the radiogoniometer and then into a three-stage amplifier, with each stage housed in a metal screen box to avoid interference between the stages.
• During the Spanish Civil War, the Leon aerodrome was the headquarters of numerous airborne units and at the end of the conflict it was listed as class A . At that time it had radio and telephone facilities, a radiogoniometer and night lighting.
• Watt and Herd wrote an extensive paper on the system in 1926, referring to it as " An instantaneous direct-reading radiogoniometer " and stating that it could be used to determine the direction of signals lasting as little as 0.001 second.