Straight Shot with recommended heights |
Straight shot with your heights |
Alt1 with Source at 8 m |
The straight shot should work if you can get to 40' above ground level on your end.
22dB antenna will make the link but the 25dB antenna should let you get to 18db Tx power and make -71 Rx on the far end so that you can get MCS15 which is max rate for 802.11n (300Mbps)
Note that the shorter towers result in 'better' numbers which is not 'right', meaning that the result is probably from a Fresnel refraction at the Salon end of the link.
When I sanity check the numbers by putting a 30m tower at each end the path calc supports the reality of the recommended tower heights and that there is a Fresnel problem at the Salon end on Short towers.
So I strongly recommend that you get to 8 meters at the Salon end and 12 meters at you end.
Doing the ALT connection was viable but you needed at least 8 meters at the ALT end and the Salon too... for the complexity I'd go straight through. Even if you don't follow the path calc recommendation this shot 'should work' but might be a little funky on short tower heights particularly at the Salon side where large vehicle traffic might drive you a bit nuts.
Actual path calc info is below.
There's a bit of a buffer built into the numbers but Tail light warranty - it IS radio
Straight shot on short towers at 22db
Distance between House and Source is 3.8 km (2.4 miles)
True North Azimuth = 55.57°, Magnetic North Azimuth = 43.43°, Elevation angle = -0.5658°
Terrain elevation variation is 115.7 m
Propagation mode is line-of-sight, minimum clearance 0.9F1 at 0.1km
Average frequency is 5625.000 MHz
Free Space = 119.0 dB, Obstruction = -0.7 dB, Urban = 0.0 dB, Forest = 0.0 dB, Statistics = 18.6 dB
Total propagation loss is 136.9 dB
System gain from House to Source is 154.0 dB
System gain from Source to House is 154.0 dB
Worst reception is 17.1 dB over the required signal to meet
80.000% of time, 80.000% of locations, 90.000% of situations
Straight shot with recommended towers at 22db
Distance between House and Source is 3.8 km (2.4 miles)
True North Azimuth = 55.57°, Magnetic North Azimuth = 43.43°, Elevation angle = -0.6407°
Terrain elevation variation is 115.7 m
Propagation mode is line-of-sight, minimum clearance 2.8F1 at 3.5km
Average frequency is 5625.000 MHz
Free Space = 119.0 dB, Obstruction = 0.9 dB, Urban = 0.0 dB, Forest = 0.0 dB, Statistics = 18.7 dB
Total propagation loss is 138.6 dB
System gain from House to Source is 154.0 dB
System gain from Source to House is 154.0 dB
Worst reception is 15.4 dB over the required signal to meet
80.000% of time, 80.000% of locations, 90.000% of situations
Straight shot with recommended towers at 25 dB antenna** suggested solution**
Distance between House and Source is 3.8 km (2.4 miles)
True North Azimuth = 55.57°, Magnetic North Azimuth = 43.43°, Elevation angle = -0.6407°
Terrain elevation variation is 115.7 m
Propagation mode is line-of-sight, minimum clearance 2.8F1 at 3.5km
Average frequency is 5625.000 MHz
Free Space = 119.0 dB, Obstruction = 0.9 dB, Urban = 0.0 dB, Forest = 0.0 dB, Statistics = 18.7 dB
Total propagation loss is 138.6 dB
System gain from House to Source is 157.0 dB
System gain from Source to House is 157.0 dB
Worst reception is 18.4 dB over the required signal to meet
80.000% of time, 80.000% of locations, 90.000% of situations
