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Extend the wireless coverage

c.ong
Level 1
Level 1

Dear Sir,

I have conducted a site survey with the following conditions:-

a) AP 1200 with transmit power set to 100mW

b) Antenna 12 dBi Omni is used. The antenna is mounted on top of a pole.

c) The pole is 11m high and a 50ft cable is used to interconnect AP and the antenna.

d) Cisco Lighitning arestor is used.

e) ACU analysis is used to measure signal strength and quality

f) Client transmit power is set to 100mW

g) 128-bit encryption is used

h) Location of the pole is outdoor along highway

On average, the distance of the AP and the client is about 300m. Within 300m, the client is associated to the AP.

Is there any way I can increase the coverage of the signal to about 1km? How about the use of an ampifier? Does it help a lot?

Thanks.

Regards,

Delon

3 Replies 3

vectorlink
Level 1
Level 1

Delon,

The issue you have to be concerned with is the client side transmission back to your AP. Most people go and boost the AP signal with an amp with no consideration of the client. Normally what you find is the client is the side needing the help. Way you can judge this is to look at both signal strength on the AP and the client. 9 out of 10 times, its the client's signal which is too weak to extend the coverage. YOu would need to do soemthing special (directional antenna?) on the client end to boost your range. With "long range" client installs, we have acheived distnaces of up to 3 miles without a amp on the AP.

Scott

nraza
Level 1
Level 1

i m also getting the same problem, i have to use 1200 access point with 12 dbi within 2 km distance. If you have found the solution of your query then plz let me know. I will really appreciate on your reply

thanks

the problem is described already in the post the client needs the power to cover the same distance as the AP iwth its high Gain Omni of 12dBi. Booth sides sender and receiver need to have the same output poqwer to hear each other.

It could be compared like if someone stand on the pole with an megaphone shouting to a individaul without at megaphone standing 500m meters away. the individual with the magephone will beheared by the other but his voice is not loud ebough to be heard by the individual with the megaphone

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