Frequency adjustment using the activity indicator
The quickest way to adjust the frequency is undoubtedly by using one of the preset buttons on the main receiver. However, it is not always the case that the desired frequency is stored there. In such instances, the frequency can be adjusted most rapidly using the activity indicator.
Firstly, it is necessary to select the appropriate frequency band. In this example, the desired frequency of 472 kHz (GPK’s operating frequency) falls within the medium-wave band. Our ship is located in the German Bight, so the previously announced storm warning at 500 kHz comes through weakly (indicated by a short yellow bar at 472 kHz) on the activity indicator.
To adjust the frequency to 472 kHz, simply click near the frequency of 470 kHz and then move the tuning slider to the desired position by scrolling the mouse wheel forward or backward.
If the station is already transmitting, you can rotate the tuning slider until the yellow bar below it is just visible (the red tuning slider is slightly narrower than the activity indicator bars of the stations). When a station is detected, the decoded Morse code will be displayed at the bottom of the Morse decoder (text field).
If the station is not yet transmitting, you can refer to the digital frequency display on the main receiver.
This method of frequency adjustment is significantly faster than using the display or tuning directly on the receiver.
During the test, a storm warning was being transmitted by GPK on 472 kHz.
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