First of all; I like to experiment and not every design is one that might be calculated for length; the element arrangement
is often set for best reception of the most channels; without rotating the antenna.
The following was a quick fix setup, the current setup takes in account for other factors.
The first over the airwaves makeshift antenna rig was accomplished with a few feet of 75 ohm antenna cable and a hookup to the
readily available rain gutter over the front porch.
The signal strength was between 10 and 16 at the onscreen signal strength meter. Perfect picture with no freeze up or blackouts.
The Second antenna rig consisted of one aluminum crutch 25 channels and a signal strength of 29-30.
The above rigs are here to boast how easily one can gain reception even in area's somewhat remote from TV stations and without an
antenna / signal booster.
Currently The setup has two antenna's hooked to a remote controlled A/B/ switch, The Antenna's have been redesigned, one has a signal
booster to pull in semi regular signals, the other does not.
(Semi regular signals are those signals that come in at various times during the day or night and are more constant after a rain and cloud dispersal)
The third antenna is the simplest and picks up as well overall as anything I have rigged up to date; it is a 24 inch wire formed into a loop
and mounted directly to a channel master preamp and then the preamp was clamped to the top of the antenna pole.
I have cut smaller ones but there doesn't appear to be any difference other than a natural slight favor to higher frequencies / channels
when using a smaller loop and of course eventually a loss of the VHF channels all together..
The forth antenna is three loops, two vertical and one horizontal.
This is the best design setup so far; it will scan in 44 channels and maintain
a signal of 30 or more on all channels while peeked on channel 53 (KET) ; some for example get as high as 77 on the signal meter.
The preamp is attached and powered up, I haven't gotten around to testing this design without it.
Pictures of two PVC pipe antennas with copper aerials
Channels 2 4 13 17 22 28 30 less 58
This top antenna has since been redesigned with two loop antenna's
(two paralleled horizontal circular rings and one horizontal straight rod) it gets the same channels as the lower antenna
plus channel five but minus channel 4.
The lower band stations are currently being received Via a VHF-lo / VHF-hi signal booster on antenna B and currently gets a signal of 73%.
This same antenna and preamp are used to pull in channels Four through Thirteen.
All channels have also been scanned in on antenna A using a UHF loop, although it wasn't necessary or a match for receiving some of
these channels; ("they come in either way.")
a UHF/VHF booster was mounted on an antenna pole and a UHF loop was attached directly to the preamp via the 300 OHM antenna
connector, the feed from amp to the amp power supply and eventually the TV tuner; is through double shielded coaxial cable.
The loop is positioned vertically, this setup pulls in about 35 channels without rotating the loop or antenna
. The main difference I have seen between using a booster and not is that it sometimes helps pull in more channels without repositioning
the antenna , once a fair center point is found.Future rig:
To position several antenna's and then tap into the digital receiver box auto antenna switching feature.
There is an antenna on the market that uses this function but this rig will allow totally separate positioned antenna's to be switched
automatically during a scan.