Nano- gateway rssi
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Yes -60dBm is a reasonable value for LoRa
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@burgeh Looking at the discussion in this link: https://electronics.stackexchange.com/questions/83354/calculate-distance-from-rssi
and the derivation of the inital formula furtehr down the side, it seems that TxPower in the formula cites by MJ is the RSSI seen at a distance of 1 m. In my tests with two LoPy, that was in the range of 25dBm. Assuming that the power decrease by the suqre of the distance, 60dBm for a 10m distance seems not complete off, maybe a littel bit higher than expected (40dBm difference -> factor 100 == 10**2). -
@robert-hh I have tested again by pointing the antenna straight upward in 1m the rssi value that i obtained is around -37dBm. Is it looks reasonable?
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@mj Depends on the antenna an it's set-up. With a short wavelength/4 antenna, I had values between 25 and 39 dBm, even depending on how I was placing myself. The wavlength/4 antennas are typicall about 10cm (4") long, whereas wavelength/2 antennas have a length of about 20 cm (8").
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