The description is wrong. Antenna with a gain of 8 dB. No 3 dB gain. Update: To be honest I'm not sure what dB is after a few days of mining with this antenna. This is 7-8dB shorter than your average antenna. And I'm getting witnesses from fairly close miners at a distance of 18km. Nothing more than that. So far I'm happy with the results. I wanted a 5-6dB antenna but I was able to get this one quickly.
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