North Queens TV White Space Trials

             Results from 1st Test Site

 

                          

 Home PageTerrainCoverageTest Site 1 ResultsTest Site 2 ResultsLong Term TestSpecifications

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Test site 1 was selected primarily so we could become familiar with the gear but also because we wanted to study the performance with the antennas below the tree canopy.

Our antennas were with the exception of one test are all below the tree canopy and in most cases very close to the trees this is perhaps the worst way to deploy wireless equipment, but sometimes we have no choice

The reason we wanted to study this performance is because an option being looked at to provide internet in rural areas is fibre along the main population corridors with a wireless option to reach more isolated households along side roads. Our question was how far could we reasonably expected to reach deploying the antennas as described on low cost utility poles or other vertical structures of around 15m in our particular terrain.

The tests have revealed that in the worse case scenario consisting of dense 20m pine trees we can expect 1-2km but with a bit of careful planning and some luck we can expect 2-4km.

 

 Test 1 A short link through heavy pines.

Test 2TVWS and Canopy 900 attempting to make the same link

Test 3 A 3.4 km link over a small forest hill.

Test 4 Mixed results in the forest.

Test 5 A failed link so far.

Test 6 A marginal link that didn't make it

Test 7 Another short link over a hill

Test 81.6 km mainly through trees with good signal levels.

All test were conducted with the same 8dBi yagi antennas at base and mobile.