RadioLink ver 2007...
RadioLink version 2007 is a....
Radio propagation design package which will assess the feasibility of a point-to-point radio links prior to any site surveys being carried out. Additional features included to calculate microwave links. This therefore reduces costs on unnecessary trips. The
radio path is drawn onto the map using the mouse pointer or by entering the co-ordinates into the Projects manager. Now has LOS and Field Strength Plotting functions. USGS DEM, SDTS DEM, SRTM3, GT0PO30, SRTM30 and Ordnance Survey map data formats is supported. Ordnance Survey map data products that can be used are Landform Profile, Panorama and Panorama Plus.
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Link Manager
The radio links are added to the project via the Link manager. Upto 25 radio links can be entered for a project. The link is create by clicking the edit button and entering the co-ordinates. The co-ordinate formats supported are:- Lat/Long (D.M.S), decimal degrees, NGR, UTM, Geographic and QRA.
Link Data
Radio link details are entered using the dialog box shown above. The transmitter and receiver details are entered on the relevant pages. The data for most antennae and feeders are already programmed in. Additional feeders have been included which include the full range of TIMES Microwave Systems LMR, TCOM and FBT coaxial cables. Waveguides are also included for microwave applications. A wide range of antennae have been programmed in which include collinear, Yagi, lens horn and microwave dishes. Climatic conditions can also be entered.
Calculations
The radio link calculations uses various propagation models which include Yokomura/Hata, Hata(150-1500MHz, Cost-231 Hata, Egli and Friss. RadioLink calculates the losses in the coaxial/waveguide feeders, connectors and path losses to produce a link budget which can be viewed and printed out. Line of Sight (LOS) and Field Strength plots can be generated to enable coverage analysis studies for mobile and point-to-point communications. Intermodulation products can be calculated. Transmitter frequencies are extracted from the project details, additional frequencies outside of the projects can be entered such as local transmitters which may affect communications. Terrain profiles can be extracted from the map data for each link and can be saved as bitmap images for use in other documents.
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