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Showing posts with the label Doublet aerials for HF Amateur Radio.

Simple Ham Radio Antennas--Doublet aerial for HF amateur ham radio short wave bands

This is Post #654. If you're having trouble viewing this video, please insert this address into your browser search box:  Here's another well-done, easy- to- understand antenna tutorial from Ray of the "Radio Workshop."  This time, Ray explains the theory, construction, and use of the classic multiband "doublet aerial", which is simply a multiband dipole antenna fed by 300 ohm television twin lead, 450 ohm ladder line, or twin feeders of your own design.  If you cut the dipole for the 80 meter band (i.e. around 3.500 MHz) and use balanced feeders attached to a balanced tuner, you will be able to use the "doublet aerial" on any amateur radio band between 80 and 10 meters.  You can also run the tuned feeders into a 4:1 current balun and then onto your usual tuner with a short length of 50 ohm coaxial cable.  Place the "doublet aerial" as high as you can.  If you have only one antenna support, you can use th