From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from server83i.appriver.com ([72.32.253.104]:1777 "EHLO server83.appriver.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1752212Ab1FBVnZ convert rfc822-to-8bit (ORCPT ); Thu, 2 Jun 2011 17:43:25 -0400 Subject: carl9170 noise floor calculation From: Manuel Mendez Reply-To: mmendez@srtrl.com To: linux-wireless@vger.kernel.org Date: Thu, 02 Jun 2011 16:46:53 -0400 Content-Type: text/plain; charset="UTF-8" Message-ID: <1307047613.15440.8.camel@localhost.localdomain> (sfid-20110602_234329_163369_B2578A00) Mime-Version: 1.0 Sender: linux-wireless-owner@vger.kernel.org List-ID: We are developing a product that uses a board similar to the DLink DWA-160. We are sticking an amplifier before the usb radios. I am pumping beacons at say -80dBm from a siggen and a program reading the radiotap header prints them out. I am seeing ~20dBm gain which looks right, when taking into account my PA and the one that looks to be on the actual USB cards. Is there a way to use the pre-gain values for noise floor calculations, and reporting of signal strength? Manny