Doodle Labs Smart Radio Troubleshooting Manual - Page 7

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Smart Radio Trouble-Shooting
Guide
2. Poor throughput at close range
3. Poor long-range performance
"The radios are not connected to each other at all"
Make sure you can access the radios before trouble-shooting the wireless link. If the radios are
not connected to each other at all, then the most likely causes are:
1. The radios have been configured in different modes
2. The antennas are not connected properly
3. Power supply issues
The radios are configured in different modes
This could happen if you have inadvertently configured one radio in WDS AP/Client mode and
another in Mesh mode or both radios as WDS AP for example. Navigate to the wireless
configuration in the web GUI and check whether the mode is "station", "master", or "mesh
point". Make sure the two radios are in compatible modes. We suggest using the Simple
Configuration menu to configure your radios.
The antennas are not connected properly
Make sure that the connectors on the antennas are compatible with the connectors used on
the cables. RP-SMA (reverse polarity SMA) is not compatible with SMA.
Power Supply Issues
Make sure to follow the power supply recommendations of the particular model which you
have ordered. The power supply must be of the correct voltage and have sufficient current
sourcing capability to power the radio.
"The throughput is poor even at close range"
As the radios are optimized for long range, they do not work well when they are within a close
range of each other. At close range, the radios are likely to saturate the RF front-end, resulting
in poor performance. For bench evaluation, please use RF attenuators supplied in the Eval kit.
You should also reduce the output power of the radios and not use high gain antennas. , It is
further possible to enable Transmit-Power Control (TPC). Note that TPC is only recommended
for point-to-point networks.
If the radios are more than 5-10 meters apart and the throughput is still poor, then it could be
an interference or power supply issue. Please see the advice in the next section.
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Page 7
September 8, 2021