---------------------------------------------------------- AeroElectric-List Digest Archive --- Total Messages Posted Tue 08/12/14: 6 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 01:10 AM - Re: Thanks to Bob (John Tipton) 2. 04:44 AM - Re: Thanks to Bob (Robert L. Nuckolls, III) 3. 05:28 AM - Re: Thanks to Bob (Sacha) 4. 05:21 PM - GPS ant placement? (david johnston) 5. 05:31 PM - Re: GPS ant placement? (Daniel Hooper) 6. 05:40 PM - Re: GPS ant placement? (BobsV35B@aol.com) ________________________________ Message 1 _____________________________________ Time: 01:10:12 AM PST US Subject: Re: AeroElectric-List: Thanks to Bob From: John Tipton Yes: never received these postings - why does that happen (fairly frequently too, that you only start receiving the posting halfway through the thread) Regards John Sent from my iPad ----x--O--x---- > On 11 Aug 2014, at 10:13 pm, "Robert L. Nuckolls, III" wrote: > > > At 02:39 PM 8/11/2014, you wrote: >> >> Hi Jeff/Bob >> Where are they? I missed that post. >> Regards >> Sacha > > It's in the AutoCAD symbols library file at: > > http://tinyurl.com/o7axyq8 > > > > Bob . . . > > > > ________________________________ Message 2 _____________________________________ Time: 04:44:25 AM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: Thanks to Bob At 03:08 AM 8/12/2014, you wrote: > > >Yes: never received these postings - why does that happen (fairly >frequently too, that you only start receiving the posting halfway >through the thread) > >Regards > >John > >Sent from my iPad This was not a recent posting. Jeff opened the thread with a note about how he was able to exploit some of the data that's available from the website. Based on an inquiry, I followed up with a link to the specific file that contained the bulk of my AutoCAD symbols library. So you weren't behind the 8-ball on this one. Bob . . . ________________________________ Message 3 _____________________________________ Time: 05:28:15 AM PST US From: "Sacha" Subject: RE: AeroElectric-List: Thanks to Bob > Yes: never received these postings - why does that happen (fairly frequently too, that you only start receiving the posting halfway through the thread) The same happens to me too; haven't figured out why... Sacha ________________________________ Message 4 _____________________________________ Time: 05:21:06 PM PST US From: david johnston Subject: AeroElectric-List: GPS ant placement? A couple questions ref GPS ant placement=3B I have two GPS ant to install on a Cessna. My two com ant are located on e ach side at about mid wing root. My understanding is that GPS ant need to b e located at least 18" from a com ant=2C preferably not near the leading ed ge of anything. Anybody have any comments or experience with interference issues=2C placement? How far apart do GPS ant need to be from each other? Couldn't find any refs in Bob's book=2C 12th edition..... Thanx=2C Dave abnranger69@hotmail.com ________________________________ Message 5 _____________________________________ Time: 05:31:50 PM PST US From: Daniel Hooper Subject: Re: AeroElectric-List: GPS ant placement? GPS antennas need a clear view of the sky, or a clear view through non-conductive materials (like fiberglass or plexiglass). You might be able to get away with some obstructions, but fewer is better. You should not put anything too close to transmitting antennas in general, so the COM antenna spacing seems reasonable-- but GPS antennas do not transmit, so you should be able to place them right next to one another without a problem. On Aug 12, 2014, at 7:19 PM, david johnston wrote: > A couple questions ref GPS ant placement; > > I have two GPS ant to install on a Cessna. My two com ant are located on each side at about mid wing root. My understanding is that GPS ant need to be located at least 18" from a com ant, preferably not near the leading edge of anything. Anybody have any comments or experience with interference issues, placement? How far apart do GPS ant need to be from each other? > > Couldn't find any refs in Bob's book, 12th edition..... > > Thanx, > Dave > abnranger69@hotmail.com > > > > ________________________________ Message 6 _____________________________________ Time: 05:40:57 PM PST US From: BobsV35B@aol.com Subject: Re: AeroElectric-List: GPS ant placement? Good Afternoon Dave, I am aFRAID MY COMMENTS MAY NOT HELP AT ALL, BUT IF YOU ARE PLACING THOSE ANTENNAS ON A CERTIFIED AIRPLANE, IT IS BEST IF YOU REFER TO A CURRENT faa APPROVED VERSION OF THE iNSTALLATION MANUAL. TO COMPLY WITH THE FarS YOU MAY HAVE TO CONFORM TO WHAT HAS BEEN WRITTEN BY THE faa. aBOUT TWO YEARS AGO, THE fedS ADDED VERY RESTRICTIVE LANGUAGE TO THE CURRENT INSTALL MANUALS OF SEVERAL CURRENT Gps UNITS. sINCE IT IS REQUIRED THAT THE INSTALLATION CONFORM TO THE INSTRUCTIONS IN THE CURRENT INSTALL MANUAL, YOU MAY WELL BE BOUND BY THE NEW DATA. i HAVE SEEN MANY INSTALLATIONS THAT HAVE WORKED FINE WITH THE ANTENNAS WITHIN FOUR INCHES OF EACH OTHER AND WTHIN A FOOT OR TWO OF cOM ANTENNAS, BUT THE NEW fed GUIDANCE CALLS FOR no ANTENNA ON THE CENTER LINE AND FOR SPACING TWO ANTENNAS ONE ON EACH SIDE OF THE CENTER LINE. tHEY ALSO CALL FOR THE gps ANTENNAS TO BE A MINIMUM OF NINE INCHES APART. oNCE AGAIN. i THINK THEY ARE NUTS, BUT i ALSO DO FEEL THAT YOU WILL HAVE TO COMPLY WITH THOSE NEW RULES UNLESS YOU CAN GET A der TO WRITE UP SOMETHING ELSE. MOST OF THE faa FOLKS ARE GOOD PEOPLE AND WANT TO DO A GOOD JOB. BUT SOME OF THEM GET CARRIED AWAY WITH A "WHAT IF" ATTITUDE CARRIED TO THE EXTREME. iN ANY CASE, IT IS CERTAINLY BEST TO GET A COPYOF THE LATEST VERSION OF THE INSTALL MANUAL BEFORE YOU CUT METAL. hAPPY sKIES, oLD bOB Darn I accidentally capitalized most of this message. Please excuse my error! In a message dated 8/12/2014 7:22:00 P.M. Central Daylight Time, abnranger69@hotmail.com writes: A couple questions ref GPS ant placement; I have two GPS ant to install on a Cessna. My two com ant are located on each side at about mid wing root. My understanding is that GPS ant need to be located at least 18" from a com ant, preferably not near the leading edge of anything. Anybody have any comments or experience with interference issues, placement? How far apart do GPS ant need to be from each other? Couldn't find any refs in Bob's book, 12th edition..... Thanx, Dave abnranger69@hotmail.com ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message aeroelectric-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/AeroElectric-List.htm Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/aeroelectric-list Browse Digests http://www.matronics.com/digest/aeroelectric-list Browse Other Lists http://www.matronics.com/browse Live Online Chat! http://www.matronics.com/chat Archive Downloading http://www.matronics.com/archives Photo Share http://www.matronics.com/photoshare Other Email Lists http://www.matronics.com/emaillists Contributions http://www.matronics.com/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.