Scatter Forager - wide pattern bi-directional "Slot" antenna - Page 5 - Canadian TV, Computing and Home Theatre Forums

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post #61 of 68 (permalink) Old 2011-02-21, 10:06 PM Thread Starter
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If you use the cm7777 with the switch in the separate mode, then the scatter forager in the VHF input & the UHF antenna input would be kept separate UHF only.

I wouldn't rule out that KMSP-DT. It may only be a fair weather channel though. The forager should do better for the VHF than the bowtie antenna. If you mount the forager high enough and use it as a bidirectional for channel kttc to the front of the antenna & kmsp to the back of the antenna.

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post #62 of 68 (permalink) Old 2011-02-22, 08:47 AM
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It will have to wait until this evening after work, but I definitely want to grab my wire cutters and try making a slot antenna!

The part that intrigues me the most is the reception pattern, which could work well for my 2 vhf-hi stations that are about 180 degrees apart.

Thanks for the advice, ota canuck!
I'll report back with my findings.
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post #63 of 68 (permalink) Old 2011-02-24, 11:56 AM
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Well, I got my slot antenna constructed last night.

From my initial channel scan, it seems to perform pretty well, but I should have set it up where my 'old' 2-bay VHF antenna sits.

I'll have to try moving it after work tonight, so I have a better "A to B" comparison between the 2-bay and the slot antennas.



An attic antenna setup may be convenient for experimenting, but it sure is a multipath/hotspot nightmare.
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post #64 of 68 (permalink) Old 2011-02-25, 01:11 PM
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I moved the 'scatter forager' slot antenna into the spot that my large 2-bay VHF antenna occupied.

Reception-wise, they seem pretty similar.
(Except for the slot antenna is considerably more manageable than the 2-bay VHF beast!!!)
The slot antenna does seem to reject multipath interference better, though.
It also doesn't seem to suffer from dropouts every time a truck drives by on the the street in front of the house, too.

What I really want to do is get my antennas out of the attic, and on to the roof of either the garage or house.
I don't know if that'll give me the extra gain to possibly capture any of my farther-away stations or not.

I just have to sort out the best (and yet least frustrating) way to ground the setup first.
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post #65 of 68 (permalink) Old 2011-02-25, 02:03 PM
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I don't know if that'll give me the extra gain to possibly capture any of my farther-away stations or not.
It sure will. You lose anywhere from 6 to 24+ db in the attic.

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post #66 of 68 (permalink) Old 2011-02-25, 02:32 PM
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It sure will. You lose anywhere from 6 to 24+ db in the attic.
With those attic loss numbers, it sure is tempting to wander around my yard with a ladder, a broomstick, my antennas, and my netbook with a USB ATSC tuner and TSReader!
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post #67 of 68 (permalink) Old 2011-09-18, 06:22 PM
 
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A pedestrian question, but what technique does one use to make the 45 degree bends on the mesh? Just grab a set of pliers and bend one wire at a time?

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post #68 of 68 (permalink) Old 2011-09-18, 07:16 PM
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Basically, find a flat surface and use 2 wide boards.

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