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App to do loss calculations for links.
May Can be opened via the Network Map, data gets preset.
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ODLUX NetworkMap, in that case data is preset.
GUI
DesignMode
- geo coordinates can be entered manually
- the distance between the selected coordinates will be calculated automatically
- frequency band can be entered manually
- rainfall rate can be entered manually or set by the ITU recommendation (ITU-R P.837-7)
- The Digital Map of rain data from (ITU-R P.837-7) is used (the map covers entire surface of the Earth)
- The rain attenuation model from ITU-R P.838-3 is used. (dB/km)
View Mode
- relevant parameters are passed in via the url (from the network map)
- Geo locations of the two points
- Distance (when available)
- the user cannot change the lat/lon values of the link
- rainfall rate is auto-filled (according to ITU-R P.837-7)
Loss Calculations
The following loss calculations should be performed by the link calculator:
- FSL (dB) (ITU-R P.525-4)
- Rain Loss (dB) (ITU-R P.838-3)
- Gaseous Loss (Oxygen and water vapor) (ITU-R P.676-12)
- Water vapor density (ITU-R P.836-6)
- Surface Temperature (ITU-R P.1510-1)
- Dual Polarization loss (H V)
Architecture
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Note on Link Calculation
Originally, the link calculation should have been included in the ODLUX NetworkMap.
After further discussions, the decision was made to move the link calculation functionality into a new app.
The link calculator accesses the topology-api server to do its calculations.
Use Case
Use Case | description |
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Link calculation |
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Interfaces
URL
odluxurl?lat1={siteA.lat}&lon1={siteA.lon}&lat2={siteB.lat}&lon2={siteB.lon}&siteA={nameA}&siteB={nameB}&azimuthA={azimuth}&azimuthB={azimuth}&distance={distance}