distance between point a and point b 1km, LOS; antennas svenska antennispetsialisten 28dbi dishes; (1xV and 1xH on each side);
28 dbi antennas for 1km is overkill beyond words. That matched with dbii 28 db N cards and theres just to much power. as a comparison, I use 28 dbi antennas for 20km links and get -57.
reduce your power on the dbii cards on both sides until your signals about -65, your ccq should rise. use card rates on tx power tab, and lower the power. with dbii n card calc power as card rate + 5.
post your /int wi pr advanced and /int wi reg stats with the n cards in.
Try N with nstreme if your not doing so already. Please state how your testing the capacity of your link when using nstreme duel and N, also remember ccq drops when the link is not in use. Please give the model of the cards you were using for Ntreme dual link for reference purposes.
Lastly , you should be getting about 100 mbps tcp (roughly) with dual N, your data rate should be in the 270 Mbps range when its working properly.
note (informational):
Ive noticed 802.11 with nstreme, 802.11 with nv2 , N with nstreme and N with nv2 handle slight alignment problems differently and give different performances. Some just tolerate it better.
poor ccq is usually down to
1.poor alignment of antennas even with good signal
TX is almost 100%; RX jumping from 25-85%
indicates the recieve antenna alignment is out.
2.noise on channel
Scanning/frequency usage -110 almost all..
noise floor is just an indicator. use : /interface wireless spectral-history or /interface wireless spectral-scan for more accurate indication.
3.blown radios : running dbii high power radios without antennas (or dummy load) for any length of time could blow them. (True for any high power radio)
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