Cisco Antenna dBi / dB

mxrider_420
mxrider_420 used Ask the Experts™
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Hello,

I am setting up an outdoor WIFI Hotspot at out business. I have a Cisco 1300AP and am using two AIR-ANT2506 (Mast Mount  + OMNI antennas) in diversity mode with the correct spacing for 2.4 Ghz (5inches). I am curious because the cisco access point has an area to configure your external antenna. My mast mount antennas are 5.2dBi but the Cisco access point area for the AP asks Antenna Gain(dB):   (-128 - 128) . I dont know what to put here. ALSO i want BEST range and dont need speeds over 5Mbs. SO with that being said should i am going to "require" or enable 1,2,5 (and maybe 6mbs) and disable the rest for better range coverage. BUT my question is the Access point has the following options too:
CCK Transmitter Power (mW):  1510203050100Max
OFDM Transmitter Power (mW):  1510203050100Max Power Translation Table (mW/dBm)
Client Power (mW):  Local1510203050100Max
 
WHAT should i set these to for BEST range? MAX?.... anyone good with this stuff?

ANTENNA GUIDE BELOW:

http://www.cisco.com/en/US/docs/wireless/antenna/installation/guide/ant2506.html
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>  My mast mount antennas are 5.2dBi but the Cisco access
> point area for the AP asks Antenna Gain(dB):   (-128 -
> 128) . I dont know what to put here.

5.2

But according to http://www.cisco.com/en/US/docs/wireless/access_point/12.4_10b_JA/configuration/guide/scg12410b-chap6-radio.html#wp1037786
"This setting does not affect the behavior of the wireless device; it only informs the WLSE on your network of the device's antenna gain. "


> ALSO i want BEST range and dont need speeds over 5Mbs.

Then you could set it for 12, since WiFi's true throughput is about half of the maximum speed (e.g. maximum throughput at 54Mbps is about 27 megabits per second, or 3.4MB/s)... so 12 should allow true throughput of about 6Mbps or 750KB/s (minus 10%-15% for encryption overhead if using WEP or WPA-TKIP).

The radio is configured for maximum range by default. The transmit power setting needs to be changed only if you want to limit the range.

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Commented:
Excellent. thanks so much and the link is helpful too!

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