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Re: Antenna Hack of Motion Sensor

From: James Sentman <james-AT-sentman.com>
Date: 02 Jul 2009 12:31:14 UTC   (04:31:14 PM in author's locale)
To: xtensionlist-AT-shed.com
On Jul 2, 2009, at 9:53 AM, Steve Hume wrote:

> www.cocoontech.com/forums/index.php
>
> Has a post that talks to the multiple antenna. You would need to fine
> tune the lengths of your coax feeds. For this you probably need a
> storage oscilloscope that goes to 310MHz. The above post suggests the
> antenna amp instead.


I recall way back when we started adding antennas to things with the
MR26 mod that someone around here did some serious experimentation
trying to mix the signals from 2 antennas only to get mush and no
valid signals. Perhaps Michael will recall who and when that was. An
regular TV/FM coax amp works wonders also under most circumstances and
if you haven't tried that you should.

The other option is to use multiple receivers. Perhaps you're thinking
of getting an RFX anyway, or adding a redundant W800. One connected to
the regular antenna, one connected to a directional one, or just run
some cat5 through the yard to a receiver closer to the thing. I have a
W800, an RFX, a CM15 and a CM19 all receiving from different antennas.



Thanks,
James

James Sentman sentman.com MacHomeAutomation.com


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Sending UPB Communication Packet / Mark Johannessen / 29 Jun 2009
Re: help with simple time delta / Hendrik van Eeden <hvaneeden-AT-comcast.net> / 01 Jul 2009
Re: help with simple time delta / steven passmore <steve-AT-passmore.us> / 01 Jul 2009
Antenna Hack of Motion Sensor / Jack Stewart <jacks-AT-amug.org> / 01 Jul 2009
Control of Powerhorns / Jack Stewart <jacks-AT-amug.org> / 03 Jul 2009
Re: Control of Powerhorns / James Sentman <james-AT-sentman.com> / 03 Jul 2009
Re: Control of Powerhorns / Jack Stewart <jacks-AT-amug.org> / 03 Jul 2009
Re: Antenna Hack of Motion Sensor / James Sentman <james-AT-sentman.com> / 02 Jul 2009

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