5-6 Chapter 5 
Making GSM Cable and Antenna Measurements
Making Cable Fault Location Measurements
Table 5-1  Windowing Functions Available for the Cable Fault Location 
Measurement 
Function Description Max 
side-lobe 
level
Side-lobe 
roll off
Max main
Rectangular  The function results in no 
windowing. 
–13.261 dB 20 dB/decade  –3.9224d
Flat Top The default value. A five term 
flat top window. A good 
window to use when making 
amplitude measurements of 
relatively pure tones.
–95.1 dB +/– 0.0020
Gaussian A five term cosine window 
which resembles a Gaussian 
window. 
–125.4 dB –0.680056
Hanning A window which has good 
frequency resolution and 
reasonably good side lobe-lobe 
roll-off, but poor main-lobe 
flatness and relatively large 
side-lobe peaks. 
–31.46730784 60 dB/decade –1.423622