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
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| Subject: | Re: 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)
Regards
John
Sent from my iPad
----x--O--x----
> On 11 Aug 2014, at 10:13 pm, "Robert L. Nuckolls, III" <nuckolls.bob@aeroelectric.com>
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
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| Subject: | Re: Thanks to Bob |
At 03:08 AM 8/12/2014, you wrote:
><jmtipton@btopenworld.com>
>
>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
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> 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
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| Subject: | 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
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| Subject: | Re: 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 <abnranger69@hotmail.com>
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
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| Subject: | Re: 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
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