In addition the sweep ( trace across the CRT screen ) could be regulated by the sweep speed or sweep frequency.
2.
AFRL established a world-wide network of sweep frequency recorders from which estimates of the shock speed in the corona could be made.
3.
Simons also designed its successor, the Model 727 Field Strength Meter; the Model 900 and Model 1015 Sweep Frequency Generators, and the Model SCA 213 Distributed Amplifier.
4.
In use, the sweep frequency is set to slightly lower than some submultiple of the input frequency, to display typically at least two cycles of the input signal ( so all details are visible ).
5.
The audio was first shifted up 31.5 kHz, and then shifted down 34.125 kHz, producing a net " downshift " of 2.625 kHz . 31.5 was double the horizontal sweep frequency of 15.750 kHz, and 34.125 kHz was 13 / 6 ths of 15.750, giving a convenient frequency reference.
मोबाइल