Strange Point to Area Prediction Area Surface
Opened this issue · 2 comments
When doing a point to area SNR prediction at 0.1 degree resolution, the contour values does not seem to be smooth over the prediction area. There are boundaries where there is a large delta change in SNR values. I am using isotropic/dipole_14mhz_10m_aagl.13 antenna, Any reason for this?
I'm not the one to answer this, but whomever is will want to know the particulars of your calculation. Probably a list of the inputs to the code that produced this would be enough.
This is a sample modified file I copied from the ITU\bin directory. I have used the output text file and plotted it in a software like GlobalMapper to visualise the contour gradients.
PathName "Tx2Rx"
Path.L_tx.lat 1
Path.L_tx.lng 100
TXAntFilePath "dipole_14mhz_10m_aagl.13"
TXGOS 0.0
Path.L_rx.lat 0.0
Path.L_rx.lng 0.0
RXAntFilePath "dipole_14mhz_10m_aagl.13"
RXGOS 0.0
AntennaOrientation "ARBITRARY"
Path.year 2022
Path.month 10
Path.hour 8
Path.SSN 37
Path.frequency 6.1
Path.txpower 0.0
Path.BW 1000.0
Path.SNRr 10
Path.SNRXXp 10
Path.ManMadeNoise "RURAL"
Path.Modulation "ANALOG"
Path.SorL "SHORTPATH"
RptFileFormat "RPT_D | RPT_ELE | RPT_OPMUF | RPT_PR | RPT_NOISESOURCES | RPT_NOISETOTAL | RPT_SNR | RPT_SNRXX | RPT_OCR | RPT_RXLOCATION"
LL.lat -15
LL.lng 90
LR.lat -15
LR.lng 115
UL.lat 15
UL.lng 90
UR.lat 15
UR.lng 115
latinc 0.1
lnginc 0.1
DataFilePath "../Data/"
Path.SIRr 23.76
Path.SNRXXp 50.0
Path.A 0.0
Path.TW 0.0
Path.FW 0.0
Path.T0 0.0
Path.F0 0.0