Robotron Pty Ltd G5E Manual Do Utilizador

Página de 87
WiNRADiO G3XX VHF/UHF Receiver 
AFC (Automatic Frequency Control) 
The Automatic Frequency Control function is activated by pressing the AFC 
button. It will keep the receiver tuned to the selected station if the transmitter 
frequency drifts. 
While this function is active, the receiver will periodically check the received 
signal and correct the frequency in approximately five-second intervals. 
 
This facility is not recommended for LSB and USB modes with voice 
modulation. 
Frequency Stepping 
The Frequency Stepping facility makes it possible to specify an arbitrary 
frequency step size. To change the step size, click on the associated display 
and enter the required value (from 1 Hz to 1 MHz). You can also use the up 
and down buttons on the right of the display, to select from commonly used 
step sizes. For convenience, you can also use the small slider between the 
two buttons. 
 
When the step size is selected, you can step up or down from the 
currently displayed frequency using the left or right arrow buttons 
under the step size display. The double-arrow buttons further 
down will cause stepping by a step size ten times larger. 
Stepping can also be done using the keyboard Pg Up or Pg 
Down
 keys. 
For example, if you wish to browse the AM broadcast band 
(approx. 530 to 1620 kHz), set the step size to 10 kHz (for North and South 
America) or 9 kHz (for the rest of the world), which is the channel separation 
for AM broadcast stations.   
Tune manually to any station first, then step up or down to browse the band. 
To browse the shortwave broadcast stations (2.3 to 30 MHz), 5 kHz works 
well. 
 
20