| Finding a good radio engineering and mobile radio | | | | Broadcast engineers can search for the best |
| communications tool has been a difficult task for | | | | transmitter site using HerTZ Mapper'sintervisibility |
| radio engineers, network planners and marketers for | | | | function and predict population covered by projection |
| a long time. This article will try to throw some light on | | | | onto suitable map images. In live broadcast systems, |
| an excellent radio engineering and communications | | | | outside broadcast planners can quickly deduce the |
| tool called "HerTZ Mapper". | | | | signal to noise ratio or likely bit error rate for a radio |
| HerTZ Mapper is a point to point radio engineering | | | | car link. |
| and mobile radio communications planning tool. This | | | | This tool can also be used to measure signal data |
| state of the art radio engineering tool allows the | | | | from test transmissions which can be compared with |
| computation of coverage from radio sites, the display | | | | predicted data on screen to verify true performance |
| of path profiles from any points on the terrain with | | | | against predicted. The engineer can also analyse |
| the computation of associated path budget and the | | | | co-sited transmitter systems and intermodulation |
| calculation of intermodulation products. | | | | products and so reduce the effects of interference. |
| HerTZ Mapper provides field engineers, planners and | | | | Setting up a network is rapid. Stations can be |
| marketers involved with mobile radio, point to point | | | | replicated, moved, activated, deactivated and deleted |
| radio engineering and private mobile radio, broadcast | | | | quickly allowing locations and network configurations |
| or fixed link systems the benefits of a powerful | | | | to be analyzed, modified and optimized efficiently. |
| software tool capable of operation on a modest | | | | HerTZ Mapper automatically calculates radio visibility |
| hardware platform. | | | | from a transmitter, taking into account the |
| HerTZ Mapper allows the direct generation of path | | | | topography of the terrain, the height of both |
| profiles. During clearance surveys, terrain profiles can | | | | transmitter and receiver, and earth curvature. |
| be modified on screen and ground clutter can be | | | | In short, HerTZ Mapper is a state-of-the-art point to |
| added to improve the prediction accuracy. When | | | | point radio engineering and private mobile radio |
| sites are found to be unworkable, the field engineer | | | | communications system planning tool designed to |
| has the tools at hand to re-configure his system. In | | | | meet the needs of field engineers, planners and |
| the case where there is no digital terrain data | | | | marketers in simulating network performance in the |
| available, path profiles can be entered manually, | | | | frequency range 30MHz to 60GHz - whatever the |
| allowing the engineer to work anywhere in the world. | | | | radio technology. |