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Adjacent channel power - RF Cafe Forums

Because of the high maintenance needed to monitor and filter spammers from the RF Cafe Forums, I decided that it would be best to just archive the pages to make all the good information posted in the past available for review. It is unfortunate that the scumbags of the world ruin an otherwise useful venue for people wanting to exchanged useful ideas and views. It seems that the more formal social media like Facebook pretty much dominate this kind of venue anymore anyway, so if you would like to post something on RF Cafe's Facebook page, please do.

Below are all of the forum threads, including all the responses to the original posts.


 Post subject: Adjacent channel power
Posted: Wed Mar 09, 2005 9:00 am 
Hi everyone!

I have a small question, when comparing two transceiver chips, I read something about Adjacent channel power (ACP). Can anyone tell me what Adjacent channel power means?

And for a good performance, is it beter to have a high or low ACP??

Tranks!

Enno.


 
  
 
 Post subject:
Posted: Sat Mar 12, 2005 10:16 pm 
 
Site Admin
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Joined: Sun Aug 03, 2003 2:02 pm
Posts: 451
Location: Erie, PA
Greetings Mr. Enno:

As the name suggests, adjacent channel power is the amount of power a transmitter allows to "bleed" into the channel just above and below it. Lower ACPs are always better, because it means you are not as likely to interfere with a co-existing system trying to operate in the same frequency space.

Here is an illustration that uses co-existence of Zigbee with WiFi. Bluetooth could also be added to the picture because like ZigBee, it uses a frequency-hopping spread spectrum scheme.

http://www.xbow.com/Products/Product_pd ... erence.pdf



- Kirt Blattenberger :smt024





Posted  11/12/2012

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