[aprssig] Dayton meltdown.

[Dixon, Tim]

Wow.  I learned something new today.  Never heard of this before.
Interesting. 

-----Original Message-----
From: aprssig-bounces at lists.tapr.org
[mailto:aprssig-bounces at lists.tapr.org] On Behalf Of J. Lance Cotton
Sent: Monday, May 23, 2005 10:03 AM
To: TAPR APRS Mailing List
Subject: Re: [aprssig] Dayton meltdown.

The biasing exists only to power the pre-amp in the receiving antenna. 
Otherwise, what is being described is two antennas with some coax
between them. Which works fine for most applications. It's just that GPS
relies on timing differentials, which this setup mangles.

-Lance KJ5O

Dixon, Tim wrote:
> Besides the fact that I agree with Bob on this, I'm having difficulty 
> picturing in my mind exactly what it is that you are describing.  I 
> understand there would be an active receive antenna on the roof of the

> building, and another antenna inside to retransmit a signal, but I'm 
> under the impression that you're connecting two antennae to each 
> other, and biasing one with 5 volts.  How does that retransmit a 
> signal?  I'm not sure if I understand the concept well enough.
> 
> Something like:
> 
> ANT1 (outside) - |5volts| ------ ANT2 (inside)
> 
> I don't get it.
> 
> /tim
> KG4MIQ
> 
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> 

--
J. Lance Cotton, KJ5O
joe at lightningflash.net
http://kj5o.lightningflash.net
Three Step Plan: 1. Take over the world. 2. Get a lot of cookies. 3. Eat
the cookies.

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