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Can ladder line touch the ground?
The downside of ladder line is that it can’t touch ground or come near much metal. A resonant length of ladder-line, just like the shield of coax, will pick up RF by induction from the antenna and re-radiate it into the shack. …
Can you bury ladder line?
You can bury ladder line. You just take a shovel, dig a hole. throw it in, and cover it up.
What is 300 ohm twin lead?
300 ohm twin lead is widely used to connect FM radios to their antennas, and was previously used to connect television antennas to televisions until it was replaced by coaxial cable.
Can a coax wound toroidal toroidal balun handle all band doublets?
Traditional baluns, such as the coax-wound toroidal 4:1 Guanella, are not designed to handle the extreme impedance variations of all-band doublets. They tend to arc or saturate and burn up at high power when presented with impedance extremes.
What kind of antenna do you use for a ladder line?
Many amateurs use non-resonant (even random-length) antennas fed with open-wire transmission lines and antenna tuners. They radiate signals just as well as those using coaxial cable and resonant antennas, and as a bonus they usually can use these antenna systems on multiple frequency bands.
Why is there no RF radiation on a ladder line?
If the power in each conductor is equal and opposite, we have complete phase-cancellation, and therefore no RF radiation. This is NOT true for off-center-fed antennas, like end-feed, or the various Windom-type feeds, where feed-line radiation is significant enough to warrant a bunch of power-wasting chokes.
Why do so many hams refuse to use ladder line?
Many hams refuse to use it because they are afflicted by common misconceptions: “Ladder-line radiates!” Baloney. Ladder-line does not radiate any more than does coax, if feeding a balanced antenna, like a center-fed dipole. If the power in each conductor is equal and opposite, we have complete phase-cancellation, and therefore no RF radiation.