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Commercial Radio Antennas - Please keep discussion related to professional, commercially used antennas and antenna systems for the two-way radio industry. Topics for the use of these antennas on amateur bands are accepted here.

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Old 06-19-2017, 4:14 PM
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Post Tram 1410 improvement attempt

Hi Radio Reference forum viewers,

Has anybody that owns or previously owned the Tram 1410 Discone Scanner Antenna ever considered or tried reversing the threaded 32-inch Stainless Steel antenna elements with the top loaded 10-1/2” short antenna elements? In other words, installing the 32” antenna elements into the top of the Tram 1410 & the 10-1/2” antenna elements into the bottom where the 32” are supposed to be installed. Just curious if this works or if anybody here has tried & done this test with the Tram 1410?

I just ordered the Tram 1410 today & came up with this possibly brilliant idea to maybe try when I receive it for possibly better frequency signal receiving coverage coming in to my digital public safety scanner. My other brilliant idea too, was to order an additional one of the Tram 1410 Antenna at under $50.00 & then installing only the 32” Stainless Steel antenna elements on both the top & the bottom of this antenna making for a total of Sixteen 32” antenna elements instead of just Eight & bypassing installing the short 10-1/2” elements at all on the Tram 1410.

Let me know your thoughts here. Thanks!
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Old 06-19-2017, 4:18 PM
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It'll completely degrade the performance of the antenna. Basically you have a piece of random metal as an antenna.
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Old 06-19-2017, 4:21 PM
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Quote:
Originally Posted by K5BBC View Post
It'll completely degrade the performance of the antenna. Basically you have a piece of random metal as an antenna.
OK, so you are recommending that I keep its installation & setup as it is & is supposed to be for the best reception & performance? Thanks for the info.
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Old 06-19-2017, 4:26 PM
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The impedance will be off

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Old 06-19-2017, 9:21 PM
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what you CAN do is remove the top hat elements and instead install
1/4 wave rods for every band you want to hear

Then bend them up at a 45 degree angle

this will produce MUCH better performance than the discone design

discones have poor performance over a wide range of frequencies so a mere 1\4 wave groundplane can make a huge improvement
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