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Build Your Own Antenna - Discuss topics for building your own antenna.

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  #1 (permalink)  
Old 02-14-2018, 10:49 PM
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Default RCA ANT751 Outdoor Yagi HDTV Antenna

I am no longer using this for my TV and I was wondering how well it might do for my Scanner. I mainly listen to 150-162 mhz and 700-800 mhz. I have tried to find the exact specifications for this antenna but haven't found any information about what it might be tuned to specifically, just that it receives HDTV/UHF/VHF. Here is a link to it on Amazon - https://www.amazon.com/RCA-Compact-O...eywords=ant751
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Old 02-15-2018, 1:54 AM
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The 4 largest elements are for 175-220MHz but will work for lower frequencies.
The 4 small elements at the front are 470-800MHz and you could cut those to 7 inches tip to tip to tune them more to 800MHz.
Use the antenna vertical and if most transmitters are in its direction it will work better than a ST-2 on your frequencies.

/Ubbe
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Old 02-15-2018, 2:34 AM
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UHF TV goes to 870MHz, so the antenna shouldn't require any trimming to work well. The main things to understand are that it is directional, and will only receive well in the direction it is pointed, and the elements need to be mounted vertically.
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Old 02-15-2018, 5:54 AM
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Thank you for the replies.

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Old 02-15-2018, 8:31 AM
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The Best Way is to Just Try It and You Can Actually See what Bands This will Pick Up---There is Alot of Talk On the Forums About Whats Right and Wrong--Losses and What Not---I Used an Old TV Antenna with a Rotor and the Darn Old Thing Worked on All the Bands from Low to 800 on Multi Scanners Off 3 Splitters ---Like I Say Just Go for It Whats the Worse that Can Happen
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Old 02-15-2018, 9:45 AM
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Punctuation and capitalization?
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Old 02-15-2018, 3:13 PM
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Quote:
Originally Posted by jonwienke View Post
Punctuation and capitalization?
Roger That......
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Old 02-15-2018, 4:40 PM
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So I just need to flip it on it's side because of the polarization, so the elements are going up and down and not flat.


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Old 02-15-2018, 4:52 PM
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Quote:
Originally Posted by daddyjohn View Post
So I just need to flip it on it's side because of the polarization, so the elements are going up and down and not flat.


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Yep, and point it at what you want to hear.
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Old 02-21-2018, 7:26 PM
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Just flip it to vertical polarity and it should work fine as is.
......
Not optimal on VHF but easily cover 470-900mhz
......
There are in fact companies marketing tv antennas as scanner antennas at a MUCH high price.
.....
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Old 02-22-2018, 3:46 PM
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Drilled rivet out of mounting bracket and flipped it. Does the mount need to be isolated from the metal mast or is that not critical on receiving only?

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Old 02-22-2018, 3:53 PM
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Yes, but the scanner antennas that look like TV antennas are tuned to the public service bands instead of the TV channels. There is also a very small market for scanner antennas compared to TV antennas, so naturally the price would be more due to mfg costs.
prcguy

QUOTE=MOTEX;2888438]Just flip it to vertical polarity and it should work fine as is.
......
Not optimal on VHF but easily cover 470-900mhz
......
There are in fact companies marketing tv antennas as scanner antennas at a MUCH high price.
.....[/QUOTE]
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Old 02-22-2018, 8:36 PM
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Quote:
Originally Posted by MOTEX View Post
Just flip it to vertical polarity and it should work fine as is.
......
Not optimal on VHF but easily cover 470-900mhz
......
There are in fact companies marketing tv antennas as scanner antennas at a MUCH high price.
.....
TV does not go to 800 or 900 anymore and they just took some more TV channels away for Public Service in 700 'band'.
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