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thomask
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asymmetric singal strength with R52?

Sat Jan 12, 2008 3:56 am

Has anyone any experience with the following setup?

A point to point connection between two R52 using one 5.4GHz channel. The catch is that the receiving antennas on both ends have a gain of ca. 35 dBi while the sending antennas only have a gain of about 8 dBi.

Do the cards and RouterOS drivers support the resulting asymmetric signal strength?
 
Diganet
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Re: asymmetric singal strength with R52?

Sun Jan 13, 2008 2:51 am

Has anyone any experience with the following setup?

A point to point connection between two R52 using one 5.4GHz channel. The catch is that the receiving antennas on both ends have a gain of ca. 35 dBi while the sending antennas only have a gain of about 8 dBi.

Do the cards and RouterOS drivers support the resulting asymmetric signal strength?
Thomas,

Yes you can do that with Dual N-Streme (2 radios in each end of the link) with a high gain recieving antenna you can gain a lot of extra dBm and reach further than normal. You should however seperate the links with at least 200MHz and keep good distance between the antennas.

Regards

Henrik
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Gerard
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Re: asymmetric singal strength with R52?

Sun Jan 13, 2008 6:23 am

You can also use antenna-mode = txa-rxb or vice versa.. Which will transmit with one antenna connector and receive with the other. Using this method only uses a single channel and single card on each side although it does not provide for a full duplex link like a Dual Nstream setup would..

-Gerard
 
thomask
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Re: asymmetric singal strength with R52?

Mon Jan 14, 2008 9:15 pm

You can also use antenna-mode = txa-rxb or vice versa.. Which will transmit with one antenna connector and receive with the other. Using this method only uses a single channel and single card on each side although it does not provide for a full duplex link like a Dual Nstream setup would..
Throughput isn't an issue (aim is about 10kB/s) neither is latency. I'll give it a try.

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