11-23-2007 05:29 AM - edited 07-03-2021 02:59 PM
There somethig that i would like to understand..
what is the purpouse of a dual antenas in a 1240G.
I understand the diversity feature, but i dont understand the purpouse of dual antenas
in a 1240G radio.
Are two internal radios (one each antena) or is only one radio with two antenas...
how it work?
Solved! Go to Solution.
11-23-2007 07:23 AM
Hi Rafael,
Hope all is well with you :)
The 1240G has only one b/g radio and will have one set of Dual RP-TNC connectors in case you want to hook up two Antennas in Diversity Mode (as you nicely noted!) In many cases you will just use one Antenna connected to the Primary RP-TNC side.
The 1240A/B/G has only one b/g radio and one A radio and will have two sets of Dual RP-TNC connectors. One dual set for each radio in case you want to hook up two Antennas in Diversity Mode. In many cases you will just use one Antenna connected to the Primary RP-TNC side for b/g and one Antenna connected to the Primary RP-TNC side for A.
For the 1240G
Dual RP-TNC antenna connectors for 2.4-GHz radios
Antenna connectors support a variety of Cisco 2.4-GHz antennas, providing range and coverage versatility.
http://www.cisco.com/en/US/products/ps6521/products_data_sheet0900aecd80635208.html
For the 1240A/B/G
Dual RP-TNC Antenna Connectors for Both 2.4-GHz and 5-GHz Radios
Antenna connectors support a variety of Cisco 2.4-GHz and 5-GHz antennas, providing range and coverage versatility.
http://www.cisco.com/en/US/products/ps6521/products_data_sheet0900aecd8031c844.html
Cisco Aironet 2.4 GHz and 5 GHz Antennas and Accessories
http://www.cisco.com/en/US/products/ps6521/products_data_sheet09186a008022b11b.html
Hope this helps! And makes some sense :)
Rob
11-23-2007 07:11 AM
It is one radio (802.11g) with two antennas, only one of them is active at any given time (antenna A is Tx/Rx OR antenna B is Tx/Rx). Thre is only one path to the radio, and only one antenna can occupy that path at a time.
Then there may be also an 802.11a radio with either an integrated "padddle" antenna or another version of that radio has two antenna jacks.
Both radios have two antennas to enable Diversity; basically two views of the SAME AREA to reduce the chances of Nulls and minimize multipath effects.
Good Luck
Scott
11-23-2007 07:23 AM
Hi Rafael,
Hope all is well with you :)
The 1240G has only one b/g radio and will have one set of Dual RP-TNC connectors in case you want to hook up two Antennas in Diversity Mode (as you nicely noted!) In many cases you will just use one Antenna connected to the Primary RP-TNC side.
The 1240A/B/G has only one b/g radio and one A radio and will have two sets of Dual RP-TNC connectors. One dual set for each radio in case you want to hook up two Antennas in Diversity Mode. In many cases you will just use one Antenna connected to the Primary RP-TNC side for b/g and one Antenna connected to the Primary RP-TNC side for A.
For the 1240G
Dual RP-TNC antenna connectors for 2.4-GHz radios
Antenna connectors support a variety of Cisco 2.4-GHz antennas, providing range and coverage versatility.
http://www.cisco.com/en/US/products/ps6521/products_data_sheet0900aecd80635208.html
For the 1240A/B/G
Dual RP-TNC Antenna Connectors for Both 2.4-GHz and 5-GHz Radios
Antenna connectors support a variety of Cisco 2.4-GHz and 5-GHz antennas, providing range and coverage versatility.
http://www.cisco.com/en/US/products/ps6521/products_data_sheet0900aecd8031c844.html
Cisco Aironet 2.4 GHz and 5 GHz Antennas and Accessories
http://www.cisco.com/en/US/products/ps6521/products_data_sheet09186a008022b11b.html
Hope this helps! And makes some sense :)
Rob
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