Dec 09 2016

HAMNET live

The HAMNET connection is live. It’s not VPN based, but radio based on 5 GHz. I’m using an Ubiquiti Nanobeam M5-400 with 40cm dish to have enough gain towards the TV tower located about 16km from my home. Line of Sight is (just) availlable which is mandatory for a 5 GHz connection.

The dish needs to be moved up a meter or so since the flat roof is in the fresnel zone. Horizontal signal is about -85 dBm, vertikal about -81 dBm. Since I’m using cross polarity, +3 dB can be added making the total signal received about -80 dBm. Enough for 19,5/19,5 Mbit/sec with 10 MHz bandwitdh. The goal is about -75 dBm signal.

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