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dexter, 02/19/2016 10:48 PM
The antenna that has been shipped with the BS11 is a so called sector-antenna. That means it is designed not to cover only a part of the area around the BTS. And it has a gain. The gain comes from the signal that is bundeled and sent into the sector. The advantage: You can use several BTSs to cover a cell (Each cell sector has its own BTS > More calls) and you can cover more distance with less power.
What is good if you want to run a mobile network is bad for experimental proposes. For us an antenna that covers the area around the BTS with a nondirected signal (like a donut) is perfect - so lets build one.
Step by step ==Image(cableAntenna_materials.JPG,width=300px)
The antenna is made out of a pice of old coax-cable (about 15-20cm length) and a BNC connector. (You can use the endigns of an old networkcable too). To make it all looking good we add a pice of shrink tubing at the end.
Image(cableAntenna_bncplugconnected.JPG,width=300px)
The first task to do is to connect the connector to the cable. I used a solderable BNC-Connector.
Updated by dexter about 8 years ago · 5 revisions
