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Author Topic: Scanner beam  (Read 5273 times)

Offline NJQA

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Scanner beam
« on: September 26, 2020, 1252 UTC »
These might make good scanner antennas (mount for vertical polarization).  In bulk, they are $12 each and have a Type F connector.

https://www.mtcradio.com/case-of-ten-hdtv-outdoor-antenna-vhf-uhf-16pleg-element-hi-gain-log-periodic-design/

They remind me of the scanner beam that Grove sold many years ago.

Offline ChrisSmolinski

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Re: Scanner beam
« Reply #1 on: September 26, 2020, 1336 UTC »
Interesting. Nice potential for a group buy, but not sure how expensive re-shipping each antenna would be.

OTOH I guess you could install a bunch of them aimed in different directions, and select which one to use, as a reviewer did.

Looks like you can get two for $38 shipped https://www.mtcradio.com/buy-one-get-one-free-hdtv-outdoor-antenna-vhf-uhf-16-element-hi-gain-log-periodic-design/
Chris Smolinski
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Offline NJQA

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Re: Scanner beam
« Reply #2 on: September 26, 2020, 1421 UTC »
The mounting hardware it comes with directly supports horizontal or vertical mounting, so nothing needs to be drilled.

Offline ChrisSmolinski

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Re: Scanner beam
« Reply #3 on: September 26, 2020, 1448 UTC »
Looks like they're also being sold on eBay for $25 each, shipped https://www.ebay.com/i/233400693902

I found that listing while trying to find some dimensional info on the antenna, which I still have not found.
Chris Smolinski
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Offline ThaDood

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Re: Scanner beam
« Reply #4 on: September 26, 2020, 1900 UTC »
Or, find a trashed TV antenna on a curb-side, junk store, or even a dumpster, and drill-out the holes in the boom to make it VERT, for next to nothing. Yeah... I'm that cheap, but this does work. Even some successful TV antenna MOD's for 6M, 2M, 222MHz, and 432MHz, Amateur Radio RX / TX.
“I am often asked how radio works. Well, you see, wire telegraphy
is like a very long cat. You yank his tail in New York and he
meows in Los Angeles. Do you understand this? Now, radio is
exactly the same, except that there is no cat.”
-Attributed to Albert Einstein, but I ripped it from the latest Splatter .PDF March 2025 issue.

Offline NJQA

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Re: Scanner beam
« Reply #5 on: September 27, 2020, 1753 UTC »

I found that listing while trying to find some dimensional info on the antenna, which I still have not found.

The dimensions (within an inch or so):

Boom length = 48 inches

Widest elements = 16 x 2 = 32 inches

Narrowest elements = 2 x 2 = 4 inches

Offline ChrisSmolinski

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Re: Scanner beam
« Reply #6 on: September 27, 2020, 1805 UTC »
Thanks for the dimensions!
Chris Smolinski
Westminster, MD
eQSLs appreciated! csmolinski@blackcatsystems.com
netSDR / AFE822x / AirSpy HF+ / KiwiSDR / 900 ft Horz skyloop / 500 ft NE beverage / 250 ft V Beam / 58 ft T2FD / 120 ft T2FD / 400 ft south beverage / 43m, 20m, 10m  dipoles / Crossed Parallel Loop / Discone in a tree

Offline Evil Elvis

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Re: Scanner beam
« Reply #7 on: September 28, 2020, 1754 UTC »
Not looked into that antenna at all, but it is advertised as a Log Periodic which would be much different than a normal Yagi.

They are also offering buy one get one free https://www.mtcradio.com/buy-one-get-one-free-hdtv-outdoor-antenna-vhf-uhf-16-element-hi-gain-log-periodic-design/

Ordered a 'buy one get one free' for 25$ shipped via eBay. Have a few old TV rotators to play with.
« Last Edit: September 29, 2020, 0202 UTC by Evil Elvis »
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Offline ChrisSmolinski

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Re: Scanner beam
« Reply #8 on: September 29, 2020, 1256 UTC »
Not looked into that antenna at all, but it is advertised as a Log Periodic which would be much different than a normal Yagi.

They are also offering buy one get one free https://www.mtcradio.com/buy-one-get-one-free-hdtv-outdoor-antenna-vhf-uhf-16-element-hi-gain-log-periodic-design/

Ordered a 'buy one get one free' for 25$ shipped via eBay. Have a few old TV rotators to play with.

What's the URL for the BOGOF for $25 shipped via eBay?  I see BOGOF on their site for $25.99 + $12 shipping, and one on eBay for $25 shipped. 
Chris Smolinski
Westminster, MD
eQSLs appreciated! csmolinski@blackcatsystems.com
netSDR / AFE822x / AirSpy HF+ / KiwiSDR / 900 ft Horz skyloop / 500 ft NE beverage / 250 ft V Beam / 58 ft T2FD / 120 ft T2FD / 400 ft south beverage / 43m, 20m, 10m  dipoles / Crossed Parallel Loop / Discone in a tree

Offline KandiKlover

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Re: Scanner beam
« Reply #9 on: September 13, 2024, 1130 UTC »
Interesting. Nice potential for a group buy, but not sure how expensive re-shipping each antenna would be.

OTOH I guess you could install a bunch of them aimed in different directions, and select which one to use, as a reviewer did.

Looks like you can get two for $38 shipped https://www.mtcradio.com/buy-one-get-one-free-hdtv-outdoor-antenna-vhf-uhf-16-element-hi-gain-log-periodic-design/

Or also point them all in the same direction and have one hell of a phased array. Like Japanese EME hams do on 2 meters.

Offline Robot Matrix

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Re: Scanner beam
« Reply #10 on: January 22, 2025, 0659 UTC »
Or, find a trashed TV antenna on a curb-side, junk store, or even a dumpster, and drill-out the holes in the boom to make it VERT, for next to nothing. Yeah... I'm that cheap, but this does work. Even some successful TV antenna MOD's for 6M, 2M, 222MHz, and 432MHz, Amateur Radio RX / TX.

This definitely works! The TV antennas are just log periodic antennas oriented horizontally. Nothing stopping you from making it a vertical.
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