What's CCQ trying to tell me?

RouterOS Beginner Basics
1

I’ve a short link that’s starting to show some >500ms ping times and i’m trying to find out why.

It’s one of 6 connections to an AP running 2.4GHz, and on all the links signal strength and noise floors are very acceptable, but seen from the AP end the Tx/Rx CCq readings are all over the shop, with Tx generally being very good, ie 80%+ but Rx very poor, often below 20% - I’ve seen an imbalance of 100/9%, and the best in a few minutes of just watching was 85/60%.

Is this normal - a consequence of asynchronimous traffic through a downstream adsl router - or a sign that the wireless card in the AP might be on the way out, or intererence, or…?

2

Possible causes:

  1. LOS & fresnel, antenna alignment problems
  2. Heavy very heavy interference.
  3. Not so clear channel. The AP end can be OK but client end has interference. Find a mid way by changing on different freq.
  4. Card power on AP end is higher than client end.
3

Could you enlarge on this? Is it adviseable/essential to have Tx powers at both ends equal? How can you, when you have a client 1 km distant from the AP and another 10 km away?

4

it is not necessary to have same tx power… but when AP power is high and AP’s r on high rise tower they can transmit signal well but clients r low on height so they cannot always transfer packets in the same ratio as they recieve resulting in bad ccq. try to raise the height … it will be solved..

all the best