Hello,
I am using the Radxa ZERO 3W, and I would like to connect an external antenna via the u.FL connector. Could you please confirm the maximum dBi gain that the board supports for an external antenna? Are there any specific recommendations or limitations to consider for optimal performance?
Thank you!
Late answer, and unsure if I am doing something wrong, but I do not see any particular gain, at least with good signal.
Antenna disconnected, overlay off:
> radxa@cloneone:~$ sudo iw dev wlan0 link
> Connected to 22:b0:01:ef:e0:c1 (on wlan0)
> SSID: NONNO_LASER
> freq: 5500
> RX: 173615 bytes (974 packets)
> TX: 65544 bytes (432 packets)
> signal: -51 dBm
> rx bitrate: 433.3 MBit/s VHT-MCS 9 80MHz short GI VHT-NSS 1
> tx bitrate: 351.0 MBit/s VHT-MCS 8 80MHz VHT-NSS 1
>
> radxa@cloneone:~$ speedtest-cli --server 7839
> Retrieving speedtest.net configuration...
> Testing from Fastweb (93.34.128.242)...
> Retrieving speedtest.net server list...
> Retrieving information for the selected server...
> Hosted by Fastweb SpA (Milan) [0.91 km]: 10.98 ms
> Testing download speed................................................................................
> Download: 265.26 Mbit/s
> Testing upload speed......................................................................................................
> Upload: 185.09 Mbit/s
Antenna connected, overlay on:
> radxa@cloneone:~$ sudo iw dev wlan0 link
> Connected to 22:b0:01:ef:e0:c1 (on wlan0)
> SSID: NONNO_LASER
> freq: 5500
> RX: 55414 bytes (303 packets)
> TX: 69699 bytes (261 packets)
> signal: -51 dBm
> rx bitrate: 433.3 MBit/s VHT-MCS 9 80MHz short GI VHT-NSS 1
> tx bitrate: 390.0 MBit/s VHT-MCS 9 80MHz VHT-NSS 1
>
> radxa@cloneone:~$ speedtest-cli --server 7839
> Retrieving speedtest.net configuration...
> Testing from Fastweb (93.34.128.242)...
> Retrieving speedtest.net server list...
> Retrieving information for the selected server...
> Hosted by Fastweb SpA (Milan) [0.91 km]: 11.353 ms
> Testing download speed................................................................................
> Download: 292.02 Mbit/s
> Testing upload speed......................................................................................................
> Upload: 181.88 Mbit/s
The test I tried is connecting the u.FL connector, enable the overlay via rsetup and reboot.
Radxa OS with kernel: 6.1.84-13-rk2410-nocsf