X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Thu, 23 Dec 2010 10:11:18 -0500 Message-ID: X-Original-Return-Path: Received: from web81201.mail.mud.yahoo.com ([68.142.199.105] verified) by logan.com (CommuniGate Pro SMTP 5.3.11) with SMTP id 4652251 for lml@lancaironline.net; Thu, 23 Dec 2010 10:11:06 -0500 Received-SPF: none receiver=logan.com; client-ip=68.142.199.105; envelope-from=cwfmd@yahoo.com Received: (qmail 65321 invoked by uid 60001); 23 Dec 2010 15:10:31 -0000 DomainKey-Signature:a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com; h=Message-ID:X-YMail-OSG:Received:X-Mailer:Date:From:Subject:To:MIME-Version:Content-Type; b=kxPfEMZkD6t70ogRsrl8bz/S2olwQPCA5F3+xfvln+0K73wNugVQ6iC15Oen/P5CbGFr43SyukJ8aCE460KUsnuU5brnZe35T0gpFGW7CQzZ2/oBswWZEd6GLBYuVO8R05eaPvQCXHbl5l5yY7celm4zkf2McKjuI2tU0dvmWTY=; X-Original-Message-ID: <963791.55587.qm@web81201.mail.mud.yahoo.com> X-YMail-OSG: Dyb3iG0VM1nJJNPnQWr0XyfDPyprUvAMqIqHgZrT9EEC8Fk N1vGcyMD04mGvkQA7ioMTJvH_7CoQOvq8O_HMOXDcpMAb4f1wmhS3H5fWT4c 3fIUVNQGbqHTJJ68Jxd0uutMAYFv7zOBhBwzrnDeFVCzT3QXxqLroaU23.VA 6MkA5YSRcUzmGUtnWro7W4GbmWj1qaOsJGPmqJTbJIgD4H8xVo23pnnmsi7W lppgAMI3gmpMDeQwMY4PoTaZVI19YkrDOmUVLafjMtQsa49xtzSsvcG_qJHH K.ni3NgHfb39kcZl373KiGo62gfWp4qWY78AMegHLD4SqNKtu0KDmKcgaIZp BxQzAz2DzQhcLdnnU9hqXtf8xUU0jSHjM8FelI6pyhSu9y1QXr.in7WCBi1I VzbRoDT4yUA-- Received: from [76.30.87.99] by web81201.mail.mud.yahoo.com via HTTP; Thu, 23 Dec 2010 07:10:30 PST X-Mailer: YahooMailClassic/11.4.20 YahooMailWebService/0.8.107.285259 X-Original-Date: Thu, 23 Dec 2010 07:10:30 -0800 (PST) From: William Miller Subject: Re: QNH X-Original-To: lml@lancaironline.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="0-93257508-1293117030=:55587" --0-93257508-1293117030=:55587 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable Here is more on the aviation Q codes at Wikipedia K2LML DE WA5PQJ UR RST 599 NAME IS BILL QTH HOUSTON TX 73 TNX BK In the days before voice telephony via radio, aviators used Morse code to c= ommunicate. Shorthand abbreviations included a whole bunch of Q** codes. Th= ese traditions are preserved now among the "Experimental Radio Association"= or ARRL, similar to EAA. Just as the FAA has an amateur or experimental ru= le set, The FCC sets aside certain frequencies and authorises certain const= ruction and operation of radios. Our main newsworthy interest and contact w= ith regulators involves TVInterference, rather than occasionally dropping o= ut of the sky in our entrepreneurial aerodyne. We have novice, technician, = general, advanced, and extra levels of license and privileges, but no annua= l physicals. =A0When I trained as a Naval Aviator in the early 80's, we learned QNH is t= he minimum altimeter setting in the military TAF=0A forecast. Should you ha= ve a com radio failure, only one barometric altimeter (no GPS or radar alt)= , and can only rely on your preflight planning to get you safely down the a= pproach path, why would it be important to know what the lowest possible al= timeter might be? =A0I wonder how many EAA members are also Hams.... I think the baby boomers= grew up in an era of extraordinary post-war military surplus aircraft and = radios. I keep wondering how the rich landscape of potential projects and f= ixer uppers, both in aviation and electronics, could be provided to today's= youth. It seems most of these gadgets have become appliances, off the shel= f, or in the electronics too micro/nano to be accessible to the experimenta= list amateur. =A0Here is today's forecast for my favourite former NAS, now MCAS Miramar, = San Diego:=20 Ahhh tradition: TAF KNKX 2309/2409 13005KT 9999 SCT060 QNH3005INS TEMPO 2312/2315 VRB04KT 3200 BR BKN002 =20 FM231800 29006KT 9999 FEW060 SCT200 QNH3010INS T08/2312Z T16/2316Z=3D What will you do, Marine, if your F-18 goes NORDO and the usual 100 foot=20 ceiling marine layer is rolling in? How will your procedure vary =A0according to what time it is? Enjoy Bill Miller High to Low, Look out Below.... =20 =0A=0A=0A=0A=0A=0A=0A=0A =0A=0A=0A --0-93257508-1293117030=:55587 Content-Type: text/html; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable
Here is more on the aviation Q codes at Wikipedia
K2LML = DE WA5PQJ UR RST 599 NAME IS BILL QTH HOUSTON TX 73 TNX BK


In the days before voice telephony via radio, aviators used Morse = code to communicate. Shorthand abbreviations included a whole bunch of Q** = codes. These traditions are preserved now among the "Experiment= al Radio Association" or ARRL, similar to EAA. Just as the FAA has an amate= ur or experimental rule set, The FCC sets aside certain frequencies and aut= horises certain construction and operation of radios. Our main newsworthy interest and con= tact with regulators involves TVInterference, rather than occasionally drop= ping out of the sky in our entrepreneurial aerodyne. We have novice, techni= cian, general, advanced, and extra levels of license and privileges, but no= annual physicals.
 When I trained as a Naval Aviator in the early = 80's, we learned QNH is the minimum altimeter setting in the military TAF= =0A forecast. Should you have a com radio failure, only one barometric alti= meter (no GPS or radar alt), and can only rely on your preflight planning t= o get you safely down the approach path, why would it be important to know = what the lowest possible altimeter might be?
 I wonder how many EAA= members are also Hams.... I think the baby boomers grew up in an era of ex= traordinary post-war military surplus aircraft and radios. I keep wondering= how the rich landscape of potential projects and fixer uppers, both in avi= ation and electronics, could be provided to today's youth. It seems most of= these gadgets have become appliances, off the shelf, or in the electronics= too micro/nano to be accessible to the experimentalist amateur.
 H= ere is today's forecast for my favourite former NAS, now MCAS Miramar, San = Diego:
Ahhh tradition:
TAF KNKX 2309/2409 13005KT 9999 SCT060 Q=
NH3005INS
      TEMPO 2312/2315 VRB04KT 3200 BR BKN002
    

 FM231800 29006KT 9999 FEW060 SCT200 QNH3010INS T08/2312Z
    T16/2316Z=
=3D
What will you do, Marine, if your F-18 goes NORDO and the usual 100 =
foot 
ceiling marine layer is rolling in? How will your procedure vary according to what time it is?

Enjoy
Bill Miller

Hi=
gh to Low, Look out Below....

=
=0A=0A=0A=0A=0A=0A=0A=0A

= =0A=0A --0-93257508-1293117030=:55587--