slavun
2014-10-22, 04:28 AM
Hi,
I have a problem with XPIC link. The RSL levels of the V and H polarization are as calculated but the XPD is 16 dB. We tried the fine adjustment of antenna polarization but no effect. The system is with dual polarization antenna and coupler. When one H odu is muted we have -90 in the other H, but when V is muted we have -67dbm(probably noise from nearby working MW) in the other V. Can this noise be the reason for the low XPD?
I have a problem with XPIC link. The RSL levels of the V and H polarization are as calculated but the XPD is 16 dB. We tried the fine adjustment of antenna polarization but no effect. The system is with dual polarization antenna and coupler. When one H odu is muted we have -90 in the other H, but when V is muted we have -67dbm(probably noise from nearby working MW) in the other V. Can this noise be the reason for the low XPD?