From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from sipsolutions.net (s3.sipsolutions.net [168.119.38.16]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id F41EA22D79D for ; Fri, 16 May 2025 08:40:03 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=168.119.38.16 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1747384805; cv=none; b=ac+Jz1tC40VmVjrHk0e6NbPPzjAfg6CChrwpljmYKBlORuexJEcKoR1O0lLvAyyYYZnAcPYBMg8P601jAAeXUNaWaQWw1NH4b0a3JOIbeFuQXPea2ChMHhTi0WYFOTkZhyI4m/n3dID/IRiIB2xrYjf4L/KJb4nMflx03OMmfD8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1747384805; c=relaxed/simple; bh=D/vcx0T8Wm6d6LkYLzXU1+uYEAFhQNRD8Jt2HTPvkWI=; h=Message-ID:Subject:From:To:Cc:Date:In-Reply-To:References: Content-Type:MIME-Version; b=edZVVxozt1WexAOk3U7rYxDxJNunIGDQk+F9MGDjF08D9YM9YFMSnuvN5UOGPbq7yGSiTXzX5+nXj6r5WqLcoWRix11v8uqTN+S1ax2iawmVSsrxhlYfR9vyblTOIOKvJj5Vw8rbK9z8UhAzhOLzBXaGD8S4nrI52EtI9JKTzgo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=sipsolutions.net; spf=pass smtp.mailfrom=sipsolutions.net; dkim=pass (2048-bit key) header.d=sipsolutions.net header.i=@sipsolutions.net header.b=QSacQf/D; arc=none smtp.client-ip=168.119.38.16 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=sipsolutions.net Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=sipsolutions.net Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=sipsolutions.net header.i=@sipsolutions.net header.b="QSacQf/D" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sipsolutions.net; s=mail; h=MIME-Version:Content-Transfer-Encoding: Content-Type:References:In-Reply-To:Date:Cc:To:From:Subject:Message-ID:Sender :Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From:Resent-To: Resent-Cc:Resent-Message-ID; bh=D/vcx0T8Wm6d6LkYLzXU1+uYEAFhQNRD8Jt2HTPvkWI=; t=1747384804; x=1748594404; b=QSacQf/DjG27g2LTh5kRy1NqDj1ErKjLEWecME5E/O29Icw eO8Eg0TqmLkITUsAbd5wEAwjwcP8UlrwKJ2Jm7kmQKUMs/dCN11ORN8H29AzKfOj3yYeDdpaxUia5 NLioSTN1zjP//VT+QenZcp+/i0/5p65/ODia+d0dV4mFP2sKMPTYS5OE1hMk9RbMOvZgYl8Ha6Fr4 iUlWRM4J27Ftx1Dn79LOJdHM8QIpf4QM4MStcsZnHYK4hyshA5o/KThr9PD0On0LZ20XJKQen131u DyfoShBg0XEV0WU/SV1PHzb2RHjMTW3SHIYMtZsm8M9gshfpPNsXtPIiVIX1j/7w==; Received: by sipsolutions.net with esmtpsa (TLS1.3:ECDHE_X25519__RSA_PSS_RSAE_SHA256__AES_256_GCM:256) (Exim 4.98.1) (envelope-from ) id 1uFqbo-0000000E7Yb-0qC6; Fri, 16 May 2025 10:40:00 +0200 Message-ID: Subject: Re: wireless-regdb: Wrong ETSI tranmit power without TPC From: Johannes Berg To: wens@kernel.org, Alexander Wilhelm Cc: linux-wireless@vger.kernel.org, wireless-regdb@lists.infradead.org Date: Fri, 16 May 2025 10:39:59 +0200 In-Reply-To: <424fc6a24f3af233fc70296b9995a97c2d7f9e17.camel@sipsolutions.net> References: <424fc6a24f3af233fc70296b9995a97c2d7f9e17.camel@sipsolutions.net> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable User-Agent: Evolution 3.54.3 (3.54.3-1.fc41) Precedence: bulk X-Mailing-List: linux-wireless@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-malware-bazaar: not-scanned On Fri, 2025-05-16 at 10:38 +0200, Johannes Berg wrote: >=20 > So to be _really_ precise you'd end up with 1W reduced by 3dB which of > course _is_ precisely 27dBm since 1W is 10^30 or precisely 30 dBm. >=20 Obviously 1W isn't 10^30, the latter is just a large number. I meant to write 1 W is 10^(30/10) mW johannes