According to the GSM standards 900 has low propagtion loss but high penetration loss. but during in field experience i found that signal drop for DCS were quite high. i was able to get -60dBm level which dropped to -90dBm as soon as i moved inside the building. can anybody explain this concept?
according to “Coverage Forecast and Propagation
diffraction capability of low frequency signals is stronger than that of the high frequency signal.
But the penetration capability of low frequency signals is weaker than that of the high frequency
I’m confused over this point as this contradicts what we actually get in the field.