The Path Profile Analysis (PPA) feature allows a point to point (P2P) study which generates a 2D profile graph and text report highlighting obstructions.
To use the PPA feature click the link icon in the bottom menu. Two flag markers will appear on the map next to each other. Drag and drop them into position to draw a profile. If you want it reversed, swap round the markers. The values for frequency, heigh, power will be taken from the left hand input form whenever you re-locate the markers.
When you have a graph, you can click the information icon above the top left corner to view a text report for the link.
--==[ Path Profile Analysis ]==-- Transmitter site: Tx Site location: 50.3314 North / 4.0591 West Ground elevation: 105.00 meters AMSL Antenna height: 2.00 meters AGL / 107.00 meters AMSL Distance to Rx: 11.64 kilometers Azimuth to Rx: 273.18 degrees Elevation angle to Rx: +0.0854 degrees Elevation Receiver site: Rx Site location: 50.3371 North / 4.2229 West Ground elevation: 123.00 meters AMSL Antenna height: 12.00 meters AGL / 135.00 meters AMSL Distance to Tx: 11.64 kilometers Azimuth to Tx: 93.06 degrees Depression angle to Tx: -0.1901 degrees DepressionLongley-Rice path calculation parameters used in this analysis: Earth's Dielectric Constant: 15.000 Earth's Conductivity: 0.005 Siemens/meter Atmospheric Bending Constant (N-units): 301.000 ppm Frequency: 446.000 MHz Radio Climate: 6 (Martitime Temperate, Over Land) Polarisation: 1 (Vertical) Fraction of Situations: 50.0% Fraction of Time: 50.0% Transmitter ERP: 1.0 Watts (+30.00 dBm) Transmitter EIRP: 1.6 Watts (+32.14 dBm) Summary for the link between Tx and Rx: Free space path loss: 106.78 dB Longley-Rice path loss: 134.04 dB Attenuation due to terrain shielding: 27.27 dB Field strength at Rx: 28.34 dBuV/meter Signal power level at Rx: -101.90 dBm Signal power density at Rx: -117.44 dBW per square meter Voltage across 50 ohm dipole at Rx: 2.30 uV (7.23 dBuV) Voltage across 75 ohm dipole at Rx: 2.81 uV (8.99 dBuV) Mode of propagation: Double Horizon, Diffraction Dominant ...
The archive button will open a popup table of your most recent adhoc calculations and fixed sites. From here you can choose to add them to the map by clicking the file name or download them as either KMZ,TIFF or SHP files or share them as either a URL or HTML embed code. To delete sites, select the left most checkbox then click the trash can icon.
Click the layer name to add it to the mapDownload formats:
Enter a frequency in the 'Search' field to filter for layers by frequency
For best results use the traffic light colour schema
Cleared layers can be recovered by opening your archive