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Re: 2.4 GHz Reception Indoors?



I have a similar problem. There are several 60 foot trees to the west and
southwest of my antenna so reception is spotty until AO-40 reaches 25
degrees of elevation. To the east the there are no tall trees and reception
is good from about 3 degrees of elevation.

73,

John
KD6OZH

----- Original Message -----
From: "Greg D." <ko6th_greg@hotmail.com>
To: <amsat-bb@AMSAT.Org>
Sent: Thursday, 06 September 2001 05:46 UTC
Subject: Re: [amsat-bb] 2.4 GHz Reception Indoors?


> Humph.  I could barely hear the beacon when shooting through a
> sparcely leafed oak tree the other night, and he gets enough to decode
> telemetry looking out a brick wall...  Go figure.
>
> I've been doing an informal survey of my receive ability, now that
> I have the "tower cam" in place.  It seems the biggest contributors
> to *not* hearing AO-40 are shooting through vegetation and having a
> high squint angle (> 20 degrees).  Distance is not really a factor,
> since it is tied inversely tied to squint, and squint wins easily.
> Vegetation in the form of an oak tree trunk is an absolute killer.
>
> Greg  KO6TH
>
>
> >From: "Frederick M. Spinner" <fspinner@hotmail.com>
> >To: w4mvb@juno.com, sford@arrl.org
> >CC: amsat-bb@AMSAT.Org
> >Subject: Re: [amsat-bb] 2.4 GHz Reception Indoors?
> >Date: Thu, 06 Sep 2001 00:41:35 +0000
> >
> >Last night I could just hear the beacon with a bbq inside going through
the
> >back wall of my basement.  Putting it outside resulted in
> >about 4-5 dB better signal strength.  I went from about 50% good CRC to
80%
> >on Moe's telemetry receiver.
> >
> >I think if you go with a good sized dish, 3-4' with a CP feed you
> >would be able to do it.  That could be a bit difficult in some attics
> >though.
> >
> >Fred W0FMS
> >
> >
> >
> >>From: Jesse Morris <w4mvb@juno.com>
> >>To: sford@arrl.org
> >>CC: amsat-bb@AMSAT.Org
> >>Subject: Re: [amsat-bb] 2.4 GHz Reception Indoors?
> >>Date: Wed, 5 Sep 2001 19:04:42 edt
> >>
> >>Hi Steve,
> >>
> >>I worked W2NBJ last week while he was using a home made dish in his
> >>attic.  Al was receiving the bird better than I was with my 30 turn
helix
> >>on the mast.  When i last talked to Al a couple of months ago he had
been
> >>unable to hear AO-40 indoors with a helix.  I was so impressed I started
> >>building my own dish.  I can't put it on my mast but I plan to use it on
> >>the ground (or close to it) in the back yard.  I'll still need the helix
> >>on the mast for low elevations.
> >>
> >>Good luck.
> >>
> >>73's de Jess - W4MVB
> >>
> >>On Sun, 2 Sep 2001 14:52:22 -0400  "Ford, Steve,  WB8IMY"
> >><sford@arrl.org> writes:
> >> >Has anyone had success receiving the AO-40 downlink indoors? I'm
> >> >considering
> >> >an attic installation.
> >> >
> >> >Thanks 73 . . . Steve, WB8IMY
> >> >----
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> >
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