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[aprssig] mobile antenna for D7?

Greg D. ko6th_greg at hotmail.com
Sun Mar 18 19:05:13 UTC 2007


I also have a dual-band glass mount (Larsen 2/70) at the bottom of the glass 
area on a hatchback type car (Acura Integra).  It works well with my 
dual-band mobile rig, but I do notice that the radiation pattern is not 
circular.  There is a definite preference to the back of the car.  This is 
likely caused either by the better ground plane to the back, or the fact 
that it is shooting through the bulk of the car towards the front.  But, 
with garage heights as they are, there is no alternative, and any antenna is 
far far better than none.

73s,

Greg  KO6TH

----Original Message Follows----
From: w2pi at optonline.net
Reply-To: TAPR APRS Mailing List <aprssig at lists.tapr.org>
To: TAPR APRS Mailing List <aprssig at lists.tapr.org>
Subject: Re: [aprssig] mobile antenna for D7?
Date: Wed, 14 Mar 2007 19:16:00 +0000 (GMT)

I use a glass-mount dual band antenna with good success. It's actually 
mounted near the bottom of the window, to keep the top of the antenna below 
the 6'4" height of the garage I park in at work.

Paul, W2PI (-7)

----- Original Message -----
From: Chris Kantarjiev
Date: Wednesday, March 14, 2007 2:12 pm
Subject: [aprssig] mobile antenna for D7?
To: aprssig at lists.tapr.org

 > I'll ask this on the D7 list as well, but I think I'll get a more
 > useful response here.
 >
 > I'm revisiting my antenna choice for my vehicles. I've been
 > using a
 > couple of different mag mount antennas which are very flexible. That's
 > nice from a stealth point of view (they're pretty much invisible),
 > but the flex causes enough frequency shift that the D7 doesn't
 > decode most packets while in motion.
 >
 > I'm giving up on mag mounts, and will probably use a Diamond K600
 > trunk lid mount. The question, then, is what antenna to attach
 > to it.
 >
 > On another vehicle, I'm probably stuck with a through-glass antenna,
 > though I'm not sure of that yet.
 >
 > I'd really like to hear from folks that have had good luck with
 > a mobile D7.
 >
 > Thanks!
 >
 > 73 de chris K6DBG
 >
 > _______________________________________________
 > aprssig mailing list
 > aprssig at lists.tapr.org
 > https://lists.tapr.org/cgi-bin/mailman/listinfo/aprssig
 >


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