Robotron Pty Ltd G5P Manuale Utente

The WiNRADiO G3XX receiver is equipped with a very sensitive and selective 
Signal Strength Meter (S-meter) which makes it possible to measure peak or 
RMS signal level dBm, µV or S-units, within the IF filter passband. The 
measurement units are selected by appropriately marked buttons at the 
bottom of the display.  
 

 

The S-meter also shows the currently selected value of the squelch (the red 
section at the bottom side of the scale). When the signal strength falls under 
the squelch level (i.e. the needle falls in the red region and turns red also), the 
receiver audio will be muted. 

The squelch value is always indicated in dBm (even if the signal strength is 
displayed in S-units or microvolts). 
 
The Peak and RMS buttons select between peak and RMS values (calibrated 
for sine wave modulation).  

 

The S-meter is very selective, and acts only upon signals within the actually 
selected IF bandwidth (shaded area in the real-time spectrum display). The 
Range button splits the S-meter “needle” into two, and makes it possible to 
observe the dynamic range of the input signal (i.e. the minimum and the 
maximum values within the signal bandwidth): 

 

 

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