Custom Search
More than 12,000 searchable pages indexed.

Your RF Cafe
Progenitor & Webmaster

Click here to read about RF CafeView the YouTube RF Cafe Intro VideoKirt Blattenberger ... single-handedly redefining what an engineering website should be.

Carpe Diem!
(Seize the Day!)

5th MOB:
My USAF radar shop

Airplanes and Rockets:
My personal hobby website

Equine Kingdom:
My daughter Sally's horse riding website

•−•  ••−•    −•−•  •−  ••−•  •
RF Cafe Morse Code >Hear It<

Job Board

About RF Cafe™


Adjacent channel power - RF Cafe Forums

The original RF Cafe Forums were shut down in late 2012 due to maintenance issues. Please visit the new and improved RF Cafe Forums that were created in September of 2015. Unlike with the old forums where users registered individually, the new forums use a common User Name and Password so anyone can post without needing to create an account. Please find the current User Name and Password on the RF Cafe homepage. Thanks for your participation.

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

-- Amateur Radio
-- Anecdotes, Gripes & Humor
-- Antennas
-- CAE, CAD, & Software
-- Circuits & Components
-- Employment & Interviews
-- Miscellany
-- Swap Shop
-- Systems
-- Test & Measurement
-- Webmaster

 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??



 Post subject:
Posted: Sat Mar 12, 2005 10:16 pm 
Site Admin
User avatar

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. ... erence.pdf

- Kirt Blattenberger :smt024

Posted  11/12/2012