[kwlug-disc] Home made indoor TV Antenna
Colin Mackay
zixiekat at gmail.com
Wed Apr 16 15:19:11 EDT 2014
I'd be willing to try that. I'm looking to have my current antenna moved
onto an old satellite post on the other side of the roof, which will free
up the pole I have on my deck to test with.
Perhaps when the warm weather returns I will take you up on this offer. :D
I doubt I'll be getting much in the way of signals, however. The only
saving grace would be if the tower (more the hill it sits upon) is just out
of the way of Toronto... The hill is high enough to get in the way, but
not wide enough to block more than a few degrees. Plus, I'm up high on the
north side of New Hamburg. From my roof I can see pretty much all around.
I wish K/W or London would get a digital CBC station going. :P Even if it
was just a Toronto re-broadcast, like Global does from Paris. CBC has too
many transmitters to upgrade.
On Wed, Apr 16, 2014 at 12:58 PM, Jason Locklin <locklin.jason at gmail.com>wrote:
> On Wed 16 Apr 2014 12:30:26 PM EDT, Khalid Baheyeldin wrote:
> > On Wed, Apr 16, 2014 at 12:20 PM, <zixiekat at gmail.com
> > <mailto:zixiekat at gmail.com>> wrote:
> >
> > I think one of the largest factors in me getting stations from
> > Toronto, is Baden tower is directly between my house and toronto.
> > And being only 4km away, CKCO interferes.
> >
>
> The Baden tower is VHF, while all the CN tower stations are UHF (except
> CTV). Your best bet would be to massively attenuate VHF signals with a
> high-pass filter. I have a UHF/VHF combiner that you could borrow to
> test. They are about 10 bucks, and you can just leave the VHF tap
> unconnected or connected to a short wire to ensure that nearly all of
> CKCO's signal is blocked.
>
> -Jason
>
> > I'd be willing to try a nice yagi antenna, but don't really want
> > to put out the money just to test something I get via streaming
> > (CBC).
> >
> >
> > I know they stream section by section here
> > http://www.cbc.ca/player/News/Canada/
> > Which means you have to "hunt" for what segment/show.
> >
> > Is there a live stream of CBC News without the hunting in a browser?
> >
> >
> > Sent from my BlackBerry 10 smartphone on the Rogers network.
> > *From: *John Johnson
> > *Sent: *Wednesday, April 16, 2014 11:43 AM
> > *To: *KWLUG discussion
> > *Reply To: *KWLUG discussion
> > *Subject: *Re: [kwlug-disc] Home made indoor TV Antenna
> >
> >
> > Thanks Joe, for reading and commenting.
> > I did mention: additional elements, such as directors and
> > reflectors,...
> >
> > I would put your Fresnel lens and waveguide and "boost"
> > technologies would come under additional elements.
> >
> > Regards
> > JohnJ
> >
> > On 2014-04-16 11:28, Joe Wennechuk wrote:
> >>
> >>
> >>> Basically: more metal in the sky == more captured signal (YMMV)
> >>>
> >>>
> >> You can also use fresnel lense, or some type of waveguide antenna
> to boost the signal. There is a lot of DIY about this. I have never built
> one for Television, but I did do a Pringles can waveguide for wifi, and it
> was amazing how good it actually worked.
> >>
> >> ________________________________
> >>
> >>> Date: Wed, 16 Apr 2014 11:11:13 -0400
> >>> From: jvj at golden.net <mailto:jvj at golden.net>
> >>> To: kwlug-disc at kwlug.org <mailto:kwlug-disc at kwlug.org>
> >>> Subject: Re: [kwlug-disc] Home made indoor TV Antenna
> >>>
> >>> On 2014-04-16 09:55, Colin Mackay wrote:
> >>> I have one of these:
> >>> <
> http://cdn3.volusion.com/m5ytq.j6phj/v/vspfiles/photos/CM-3000A-2.jpg?1385029454>
> <
> http://cdn3.volusion.com/m5ytq.j6phj/v/vspfiles/photos/CM-3000A-2.jpg?1385029454
> >
> >>> [ edit ]
> >>> Did try an 8-bay like in the walmart link above, to no avail.
> >>>
> >>> While I do not have recent experience with RF, my experience with
> >>> antenna technology goes back, way back. Perhaps, a decade or 2 or
> 3 or
> >>> 4.
> >>> That said, IMHO, the basic principles remain.
> >>>
> >>> Please note that I am trying not to sound pedantic. Nor write an
> essay.
> >>>
> >>
> >>> And I apologize for any perceived pedantry and the length.
> >>>
> >>> RF is really a higher frequency of the Electro-Magnetic radiation.
> >>>
> >>> And RF itself covers a wide range of frequencies, for the purposes
> of
> >>> this discussion from MW (medim-wave used for AM radio) though to
> >>> microwave.
> >>>
> >>> Excluding the plumbing and stripline technologies of microwave,
> >>> reception of the lower frequencies, including VHF, UHF, UHF-HD,
> etc.
> >>> depend on the first principle, i.e. signal capture.
> >>>
> >>> By "signal capture" I mean the capture of the RF radiation in "the
> >>> ether", in the desired frequency band. This "signal" will include a
> >>> multitude of channels or sources, each with its own content
> modulation
> >>> methods. This "signal" will also include channels or sources from
> >>> frequency bands outside of the desired frequency band.
> >>>
> >>> Presumably one of the channels or sources is the desired source in
> the
> >>> desired frequency band. After "signal capture" a variery of
> >>> technologoies come in to play to suss out the desired channels or
> >>> source from the "captured signal". These technologies include
> filters,
> >>> amplifiers, tuners, etc. And are not the point of this discussion.
> >>>
> >>> Returning to "signal capture", the first principle mentioned above,
> >>> involves the principle of induction, i.e. the generation of an
> >>> electrical signal in a conductor by the RF energy "in the ether".
> >>> Tesla, Hertz, Lenz, Faraday, Maxwell and Fessenden (a Canadian in
> the
> >>> bunch) and others have studied, researched and documented this
> process.
> >>>
> >>
> >>> However, basically, the strength of the induced electrical signal
> in
> >>> the conductor depends on the properties of the conductor and the
> >>> strength of the RF radiation at the point of induction.
> >>>
> >>> We cannot do much about the strength of the RF radiation at the
> point
> >>> of induction.*
> >>>
> >>> That leaves the conductor, and the properties of the same. One of
> the
> >>> properties of the conductor is its "size" or "length" relative to
> the
> >>> frequency of the RF radiation. The "size" or "length" of the
> conductor
> >>> can be used to "tune" the conductor to specific frequency bands.
> This
> >>> can be in a 1:1 relation (full wave) , or in 1:n where n is even
> >>> multiples, or more common n:1 where the conductor is in even
> fractions
> >>> of the frequency, e.g. half-wave, quarter-wave, etc.
> >>>
> >>> Basically: more metal in the sky == more captured signal (YMMV)
> >>>
> >>> IMO Antenna packaging like flying saucer is like that of fishing
> lures
> >>> at Canadian Tire. The item must first attract the buyer and
> whether or
> >>> not the item actually works in the wild is secondary.
> >>>
> >>> * Some technologies can improve the strength of the RF radiation
> at the
> >>>
> >>
> >>> point of induction. These include placement and orientation of the
> >>> conductor, i.e. antenna. These also include additional elements,
> such
> >>> as directors and reflectors, as seen on Yagi VHF antennas and the
> >>> bow-tie on on the Walmart HI-DEF antenna.
> >>>
> >>> /essay
> >>>
> >>> Regards
> >>> John Johnson
> >>>
> >>>
> >>>
> >>>
> >>>
> >>> _______________________________________________ kwlug-disc mailing
> list
> >>>
> >>
> >>> kwlug-disc at kwlug.org <mailto:kwlug-disc at kwlug.org>
> >>> http://kwlug.org/mailman/listinfo/kwlug-disc_kwlug.org
> >>>
> >>
> >>
> >> _______________________________________________
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> >>
> >>
> >> -----
> >>
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> >>
> >>
> >> .
> >>
> >>
> >
> >
> >
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> >
> > --
> > Khalid M. Baheyeldin
> > 2bits.com <http://2bits.com>, Inc.
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> >
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