----------------------------------------------------------
                           AeroElectric-List Digest Archive
                                      ---
                     Total Messages Posted Thu 10/31/19: 3
           ----------------------------------------------------------
 
 
Today's Message Index:
----------------------
 
     1. 12:46 PM - Re: Glastar Dipole comm antennae behind doors  (LouNathanson)
     2. 12:54 PM - ADS-B for combined satellite/ground using a dipole  (LouNathanson)
     3. 01:30 PM - ADS-B for combined satellite/ground using a dipole  (LouNathanson)
 
 
 
________________________________  Message 1  _____________________________________


Time: 12:46:58 PM PST US
Subject: AeroElectric-List: Re: Glastar Dipole comm antennae behind doors
From: "LouNathanson" <Lou@CometRider.com>


Thanks, Bob!  It had never occurred to me to step back and see the obvious:  that
that front antenna was simply peaking well below the av band.  I will experiment
with trimming it

I will also look forward to your balun.  

Thanks,
-Lou


Read this topic online here:

http://forums.matronics.com/viewtopic.php?p=492066#492066


________________________________  Message 2  _____________________________________


Time: 12:54:44 PM PST US
Subject: AeroElectric-List: ADS-B for combined satellite/ground using a dipole
From: "LouNathanson" <Lou@CometRider.com>


I am currently equipped with ADS-B meeting the 2020 US mandate.  However, I do
fly frequently in Canada, and am starting to thing about getting ahead of the
game for that.

The currently available "diversity" solutions (which alternately ping a top and
bottom-mounted antenna) are pretty expensive, and would require ditching what
I have now.

So...I've been wondering if, given that I have a composite airframe, I could mount
a vertical dipole, tuned for 1090 MHz in the tail cone, and have it work with
both satellite and ground ADS-B stations.  

I do understand that I might be cutting the power available to ping either type
of station by half -- or arguably a bit better than that, since the dipole might
be more efficient than a quarter-wave with a limited ground plane. 

Thoughts?

Thanks,
-Lou


Read this topic online here:

http://forums.matronics.com/viewtopic.php?p=492067#492067


________________________________  Message 3  _____________________________________


Time: 01:30:39 PM PST US
Subject: AeroElectric-List: ADS-B for combined satellite/ground using a dipole
From: "LouNathanson" <Lou@CometRider.com>


I am currently equipped with ADS-B meeting the 2020 US mandate.  However, I do
fly frequently in Canada, and am starting to thing about getting ahead of the
game for that.

The currently available "diversity" solutions (which alternately ping a top and
bottom-mounted antenna) are pretty expensive, and would require ditching what
I have now.

So...I've been wondering if, given that I have a composite airframe, I could mount
a vertical dipole, tuned for 1090 MHz in the tail cone, and have it work with
both satellite and ground ADS-B stations.  

I do understand that I might be cutting the power available to ping either type
of station by half -- or arguably a bit better than that, since the dipole might
be more efficient than a quarter-wave with a limited ground plane. 

Thoughts?

Thanks,
-Lou


Read this topic online here:

http://forums.matronics.com/viewtopic.php?p=492069#492069


 

-------------------------------------------------------------------------------------
                       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.