Good signal but bad ccq

Goo day,I have 2 metals 5hspn one as ap and other as station wds, I made them for a link, signal is 52/47 this is the best signal I could have, the distance is 5 km, ccq is about 70/95 when there is trafic the ccq becomes 20/80 is there any solution or any configuration that I have to change to make ccq better ? I tried all brotocols now I use nv2 also tried to change the frequency but always same results

Things it could be: (in the order from most to least likely in my estimation)
It could be a faulty receiver that can handle an empty carrier, but when lots of payload hits, it makes many errors
Too much tx power
Clutter along the transmission path causing self-interference from scattered signal
ack timeout is too short for the link distance
external interference sources - the fact that the problem is the same on all frequencies means that it’s more likely not this, though…

Thanks for your reply, you mean in my case I should decrease the power of the ap, I tried but almost with same results …

Did you try another radio at the receive end? That’s what I figure is most likely.
(and of course check the cabling between the antenna and the radio to make sure all is well; no water, no loose connectors, etc)

I used before xr5 cards, I bought these two metals from few days and from the beginning they have bad ccq, maybe I should try to replace pectail ? But there is good signal I use grid 24 dp , that could be problem ?

Generally good signal and bad CCQ is a indication of signal interference or col-location interference -

Can you do a wireless frequency scan and what signal levels are showing up this scan,

If you are using grid antenna’s, replace with high gain panel antenna’s with good RF screening or even a dish antenna,

try another frequency

Normally a bad radio would give you low signal level but not always?