[amsat-bb] Antenna Location

[Floyd Rodgers]

Many newer houses have foil backed plywood decking to block heat transfer. That also blocks rf.

Floyd KC5QBC

> On Jun 5, 2020, at 7:02 PM, Burns Fisher via AMSAT-BB <amsat-bb at amsat.org> wrote:
> 
> Rich,  the attic has always seemed like an attractive location to me, but
> I'd suggest before you go that route, do some reception checking.  For
> example,  see how well you receive one of the Foxes on an HT on the ground
> outside, and then go to the attic and see how similar it is.
> 
> For reasons unknown, the last time I tried this I was totally unable to get
> ANYTHING in the attic, although I know some people have done well there..
> I wonder if it relates to the spacing of the nails compared to the
> wavelength, or something about the particular mixture of material used in
> the shingles?
> 
> On Fri, Jun 5, 2020 at 4:44 PM Bob Hammond via AMSAT-BB <amsat-bb at amsat.org>
> wrote:
> 
>> I use a fiberglass mast by MGS for my M2 LEO antennas and G5500 rotator.
>> Works fine.
>> You may not have enough room for the guy lines?  I have expired HOA
>> covenants, the best kind!
>> Mine is up about 30-35 feet.  PM me for details if you're interested.
>> 
>> Bob W7OTJ
>> 
>> On Fri, Jun 5, 2020 at 12:08 PM Rich Gopstein via AMSAT-BB <
>> amsat-bb at amsat.org> wrote:
>> 
>>> Thanks.  I've gotten a number of responses ranging from:
>>> Put up a tower
>>> Put it in the attic
>>> Put it on a tripod on the roof
>>> And - yours - put it somewhere reasonable and don't freak out about the
>>> attenuation.
>>> 
>>> The garage and the house both have 8/12 pitch roofs, so that's my concern
>>> with mounting on the roof.  I've done it before but I'm happy about it.
>>> The garage is lower, so less of a fall, but still steep.
>>> 
>>> I might be able to get a small AZ/EL setup inside the attic above the
>>> garage.  The issue there is my shack is on the exact opposite side of the
>>> house.  So, I'd most likely need to move the shack to the garage attic.
>>> There's power up there, but no insulation.  Maybe I could put the IC-9700
>>> there and remotely control it?
>>> 
>>> I've thought about a tower... But there are so many tower options, it's a
>>> little daunting.  If I put the tower just outside where the shack is, I'd
>>> need about 38' to clear the highest peak of the house roof.  I could go
>>> lower and just live with a little extra attenuation from the house roof.
>>> And I assume any tower would come with the need to deal with the local
>>> zoning/permit guys.  If I go that route, I'd want the tower to be high
>>> enough to use as the center of a dipole also.
>>> 
>>> Too many options...
>>> 
>>> Rich
>>> KD2CQ
>>> 
>>> 
>>> 
>>> 
>>> 
>>>> On Fri, Jun 5, 2020 at 2:18 PM satop <satop at protonmail.com> wrote:
>>>> 
>>>> Rich, my last location was worse than yours I believe.  I lived in an
>>>> large city two story home with 9' ceilings and a large peak roof, think
>>>> 1903 style.  There was a three story home on the east side and a three
>>>> story church on the west.  Three very large oak trees in the front and
>>> very
>>>> poor aim points to the north.  I mounted my tripod on a one story wood
>>> shed
>>>> on the north end of the home.  I had about a 60' run of hardline to the
>>>> shack and used high gain yagi antennas for vhf/uhf.  This setup worked
>>>> fantasy and always was amazing to me.  I even pre purchased a Super-Amp
>>>> SP-7000 for UHF but never found that I needed it.  Use some antennas
>> with
>>>> some gain and I'll bet you'll be just fine mounting on the garage or
>>> lower
>>>> build.
>>>> 
>>>> Gary/N8AYY
>>>> 
>>>> 
>>>> Sent with ProtonMail <https://protonmail.com> Secure Email.
>>>> 
>>>> 
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>> _______________________________________________
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> _______________________________________________
> Sent via AMSAT-BB at amsat.org. AMSAT-NA makes this open forum available
> to all interested persons worldwide without requiring membership. Opinions expressed
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> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: https://www.amsat.org/mailman/listinfo/amsat-bb