Clarification on mW, dbm, dbi, multi-antenna

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Clarification on mW, dbm, dbi, multi-antenna

This thread has been locked for further replies. You can start a new thread to share your ideas or ask questions.
Clarification on mW, dbm, dbi, multi-antenna
Clarification on mW, dbm, dbi, multi-antenna
2019-04-06 20:29:27
Model: RE580D  
Hardware Version:
Firmware Version:

I'm trying to get wireless coverage to my garage and this device can do it, but...  5ghz is -70 dbi or worse and best I can get for 2.4 is -62.  Not horrible, but I'm having trouble understanding how to improve it.  The device puts out 700 mW.  To each antenna or total?  What is their dbi?  I replaced one antenna with a 10 dbi dual band directional antenna and another with a 9 dbi 2.4 ghz antenna to get the numbers mentioned (-70 & -62).  I'm stuck.  Some websites suggest that dual band is better even though the 2.4 is reaching the garage.  Should I swap all 3 stock antenna with 3 dual band antenna? Single band?  Directional or omni?  5 dbi, 9, 12?  I just need to bump my numbers a little and I'm getting confused.  I'm not good with the whole mW, dbi, dbm and how they work together or against each other.

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Re:Clarification on mW, dbm, dbi, multi-antenna
2019-04-08 22:26:57

@jhusn001 

 

Here is a article that we have to improve signal quality: https://www.tp-link.com/us/support/faq/468/

 

One thing to note is that you cannot change the channel on the extender, but the other information will help.

 

The output is 700 mW in total, all three are omnidirectional, and dual band antennas. If you are going to use different antennas, you could try ones that are less then 5 dBi. Anything higher then the signal will be too directional like the article linked earlier shows.

 

Finally, you want to replace all the antennas, not just one or two if you are going to swap them out.

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