From owner-freebsd-questions@freebsd.org Tue Jan 10 16:44:56 2017 Return-Path: Delivered-To: freebsd-questions@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id EC768CA9FF3 for ; Tue, 10 Jan 2017 16:44:56 +0000 (UTC) (envelope-from milstar2@eml.cc) Received: from out1-smtp.messagingengine.com (out1-smtp.messagingengine.com [66.111.4.25]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id C2C6D117F for ; Tue, 10 Jan 2017 16:44:56 +0000 (UTC) (envelope-from milstar2@eml.cc) Received: from compute1.internal (compute1.nyi.internal [10.202.2.41]) by mailout.nyi.internal (Postfix) with ESMTP id 906B520751; Tue, 10 Jan 2017 11:44:55 -0500 (EST) Received: from web6 ([10.202.2.216]) by compute1.internal (MEProxy); Tue, 10 Jan 2017 11:44:55 -0500 DKIM-Signature: v=1; a=rsa-sha1; c=relaxed/relaxed; d=eml.cc; h=cc :content-transfer-encoding:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to:x-me-sender :x-me-sender:x-sasl-enc; s=mesmtp; bh=YXqgJFpubWMPIEMX1jXhDp5wb5 Q=; b=UJnSyweA2t+7kmFOjHy61g98yhsl6zlM4HXlPYhGQ5H5em0FE4KQosvDHT oKAW7djk/fbd5FmZZmcc9bvRe9maWJ0lE2ryc1ga6AO87e1LzBFOi9en5/nZDfAQ uraazXlDjmXAsVH5AgEmY6ksoG8xiEQtJ5EjcRz5xKdZzROhY= DKIM-Signature: v=1; a=rsa-sha1; c=relaxed/relaxed; d= messagingengine.com; h=cc:content-transfer-encoding:content-type :date:from:in-reply-to:message-id:mime-version:references :subject:to:x-me-sender:x-me-sender:x-sasl-enc; s=smtpout; bh=YX qgJFpubWMPIEMX1jXhDp5wb5Q=; b=olRTTD/6e596gz4SaAfc76k1c5e1qBeJj6 5lzxen4sbDLgxgWFL+kr1kxCvl2mHSDlK7yYXGgQ+D7LJxBuZ29WTnGqRaS3rxXv GmAQTlbHz6pgxqewPOqoiq/v4kTPIIw4ymoyBel6CKVQy08FWwP/C/PhzTHUkKxm S6BAwEXjI= X-ME-Sender: Received: by mailuser.nyi.internal (Postfix, from userid 99) id 6D9A248002; Tue, 10 Jan 2017 11:44:55 -0500 (EST) Message-Id: <1484066695.568939.843273841.33313BCA@webmail.messagingengine.com> From: swjatoslaw gerus To: Polytropon Cc: freebsd-questions@freebsd.org MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" X-Mailer: MessagingEngine.com Webmail Interface - ajax-34b48c55 Subject: Re: Fwd: iwconfig format , if free bsd have not , author is false person for freebsd -only mobile application 16 hours per dday In-Reply-To: <20170110155719.9664865e.freebsd@edvax.de> References: <1484050483.3581104.842980993.3CF18E82@webmail.messagingengine.com> <20170110155719.9664865e.freebsd@edvax.de> Date: Tue, 10 Jan 2017 17:44:55 +0100 X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 10 Jan 2017 16:44:57 -0000 Polytropon > > with limit -174 dbm for 1 hz bandwitch=20 >=20 > 1 Hz? One (whole) Hertz? I doubt that's true... :-) #################################################### More practical if normalized to 1mW in a 50=CE=A9system =E2=80=A2Np (dBm/Hz) =3D 10log(4.004e-21/.001W) =3D -174 dBm/Hz =E2=80=A2Using this equation we can now relate the Np to a 50 =CE=A9test sy= stem at 1 mW =E2=80=A2This is common standard for communication test equipment =E2=80=A2Therefore: -174 dBm/Hz is the output power of a 50 =CE=A9resistor = at the average temperature of the earth in a 1 Hz bandwidth Sorry Gentlemen=20 Need not your opinion to this question check publication of Draper Laboratory=20 http://www.draper.com/solution/gps-modernization --=20 http://www.fastmail.com - The professional email service