VHF/UHF HAM Mobile Antenna From Old TV Antennas
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VHF/UHF HAM Mobile Antenna From Old TV Antennas
![IMG_20200421_112130.jpg](/proxy/?url=https://content.instructables.com/FBC/YFEX/K9YL0TFW/FBCYFEXK9YL0TFW.jpg&filename=IMG_20200421_112130.jpg)
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Weekend, I grab an old TV antenna amplifier trashed around, to boost up my V/U handheld-radio, and I did it from all scrabs.
Easy Parts
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Other than Cat50 caxial cables, these are only things we need.
Attach the Telescop Antenna to PVC Albow
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One hole and screw it. as I am not planning to leave this antenna outdoors, there is no concern for rain protection.
Another Bigger Hole
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Drill another hole to pass the cable and split it.
Prepare for Soldering
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To brush the negative mash out, and bind them together.
Ring the negative and positive ends, are ready for soldering
Soldering and Tighting
![IMG_20200421_104157.jpg](/proxy/?url=https://content.instructables.com/FWF/LSN8/K9YL0T9R/FWFLSN8K9YL0T9R.jpg&filename=IMG_20200421_104157.jpg)
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This is simple, ugly but works, since it's first run, no need to be beautiful or fine finish.
SL16 Plug Soldering
![IMG_20200421_105703.jpg](/proxy/?url=https://content.instructables.com/FVH/G4O7/K9YL0TBF/FVHG4O7K9YL0TBF.jpg&filename=IMG_20200421_105703.jpg)
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![IMG_20200421_110746.jpg](/proxy/?url=https://content.instructables.com/F6I/HSUT/K9YL0TCU/F6IHSUTK9YL0TCU.jpg&filename=IMG_20200421_110746.jpg)
Simple too, perhaps everyone has different theory / technique of doing this job, I wellcome you post your experience and advice. :-)
Gluing a PVC Pipe
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No text here.
Measure ROE and Test Run
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As the VHF band wavelength has 2Mts, we need about 47-50cm of each side of the telescoping antenna extended only, the original TV antenna has about 75cm each, we need to leave one or 2 ranges in.
The ROE test wasn't ideal (2.81) after adjustment, I got about 1.3 reading. this is just fine to make a test with friends, unfortunately, these days here in the north of Buenos Aires Argentina, the band is quite desert.
Enjoy the DIY. 73
LU9DDD