Analysis of mobile using an android app Netmonster

Started with calculation of Netloss at home after evaluating FSPL

Rxl value here is -85dBm

TA value here is 0. App. unable to fetch details of D. I have taken D=0.496km. Frequency f= 900MHz

FSPL(Free space path loss)=20 Log10(D)+ 20 Log10(f) + 32.44 =20Log10(0.496)+20 Log10(900)+32.44=85.63dB

Evaulating Rxl= Tx+Gain-Total loss(FSPL+other losses)

Tx=40watt=46.02dBm

Rx=46.02-85.63-x=>x(other losses)=85-39.61=45.39dB

Net Loss=85.63+45.39=131.02dB

at this location,

My Rxl=-65dBm

D=0.0.39km

FSPL=20 Log10(0.039)+91.63=90.23

x(other losses)=65+46-90.23=20.77dB

Net Loss=111dB

So Net Loss has gone down here compared to before and RxL has improved.

Similarly I have marked multiple places on MAP using the app,

This was around my first location,

FSPL is same i.e., 85.63dB

x(other losses)=97+46-85.63=57.37

Net Loss=143dB

So losses were higher then

Next I performed a test where my objective was to find a place where the call drops with BSNL GSM 900 sim.I moved round while setting up a call.

RxL value was around -113dBm

Netloss= Tx-RX=113+46=159dB

Netloss is was very high.Obsevered a call drop.

Next performed a call with wifi on/off.

a)With wifi on JIO 4G was using IWLAN instead of LTE which is nothing but voice over Wifi network.

b)With wifi off JIO 4G stopped using IWLAN for voice call and moved back to LTE.

Changes observed with BSNL 2G whire a call was made with wifi on. Test done on Netmonster

After switching on Wifi. Data got disconnected call continued to be on GSM network

Max. Downlink/Uplink Bandwidth throughput observed via Cell Monitor application

Down Link throughput observed in Phone info. is around 236kbps which >> in camparision to the max Dl throughput observed via Cell Monitor app. i.e,.41Kbps. But Uplink throughput is observed in phone info which is around 59kbps is < the the one observed via Cell Monitor app i.e., around 73kbps.Measurements are made around RSSI value of -85dBm.

I think the number users per cell are higher. So the data rate is lower in comparision to max cell data rate in case of Downink. Also, if the network is not lossy the data rate can be improved. So I should be moving to a location with good signal strenth and low interference.