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fernguillermo
2011-06-23, 12:40 PM
Hello there! I am more familiar with Huawei & RTWP is normally used to check the receive power. I am studying NSN & I saw PRX Noise and PRX Total being used in online monitoring. What are those & how does it differ from Huawei's RTWP?


Thanks!
arisondang
2011-06-23, 02:04 PM
Hello there! I am more familiar with Huawei & RTWP is normally used to check the receive power. I am studying NSN & I saw PRX Noise and PRX Total being used in online monitoring. What are those & how does it differ from Huawei's RTWP?


Thanks!

PRX total is RTWP
PRN Noise is Noise floor = Thermal Noise + Noise Figure = Background Noise

Thanks
fernguillermo
2011-06-24, 10:04 AM
Ok got it. So what is the normal value for PRX Noise?
arisondang
2011-06-24, 11:45 AM
Ok got it. So what is the normal value for PRX Noise?

PRX Noise = Thermal noise + NF
Thermal Noise = -108 dbm
NF= i dont know the exactly value for NSN Noise Figure (you can get in NSN doc)

but usually, PRX noise is -105 or -106

Thanks
jan74
2011-06-24, 11:34 PM
PRX Noise = Thermal noise + NF
Thermal Noise = -108 dbm
NF= i dont know the exactly value for NSN Noise Figure (you can get in NSN doc)

but usually, PRX noise is -105 or -106

Thanks

Yes, -105dBm or -106dBm is about right although its ok up to about -102dBm. Any higher and we start investigating.