Maximum transmit power

Unanswered Question
May 21st, 2009
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Hi,


After replacing D-Link outdoor AP with LAP1522AG (3 AIR-ANT2450V-N type antennas)there is no stable wireless connection at the corner of the house opposite to AP because of the weak signal. AP is connected to 220 V AC.


Current Tx Power Level - 1, 28 dBm.

Is there a way of increasing transmit power? Maybe changing country code whose maximum dBm is more than 28 ?


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jeff.kish Fri, 05/22/2009 - 04:56
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The hardware in the 1522 does not allow for a change in country code in that sense. And even if it did, you probably wouldn't want to make a habit of breaking regulatory laws :)


You likely have two options - install another AP, or install larger antennas. You could consider installing a AIR-ANT2480V-N, which is 3dBi stronger. See more antennas here:


http://www.cisco.com/en/US/prod/collateral/wireless/ps7183/ps469/product_data_sheet09186a008022b11b.html


Just to double-check, do you get a really strong signal at close range? Just want to confirm that the AP is working appropriately on the off-chance that it's not broadcasting at all, and maybe you're just picking up another AP from further away.

osumbekov Fri, 05/22/2009 - 05:58
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jeff.kish


Actually there are no working regulatory laws in the town the AP is installed and there is no code of the country in the list. So I thought it wouldn't be a problem to get the maximum power from the AP :)

DLink replaced was working with full transmit power at the same place and there was a stable signal in that particular corner, so it would be good if the problem was resolved with one AP.


AP is working properly, I see AP MAC address in Netstumbler. Is 28 dBm the maximum value?


And is it necessary to install 3 AIR-ANT2480V-N antennas (1 tx, 2rx) or installing AIR-ANT2480V-N as tx and 2 AIR-ANT2450V-N as rx is also possible?


TIA

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