Quote:
Originally Posted by James Duncan
You will have no rf returned if you correctly cut your dipole.
SWR only occurs when the antenna is unbalanced or you tune out of band,
The antenna plays no part in audio quality, that depends on the settings in the rig.
if you use ladder line or window line you would need a matchbox matching unit ( tuner) to alter the impedance back to 50 ohms, ladder line etc has various impedance depending on the spacing, 200 and anything up to 2000 ohms.
ladder line terminated into a matcher does not radiate.the old 60's matchbox and heathkit tuners are the best for ladder line.the newer tuners are not at all as good.
However if you carefully make and prune a trap dipole you will have no problems at all.it can be nearly any shape but straight seems best.
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60M band, I have not tried yet. For that, I need to buy a new rig, either modern SDR like ICOM IC7300, or maybe get older rig with GC, and wide band it to get the 60M.
But I heard it could be a noisy band. But yes, the noise on LF is very bad here too. I mean, every electric appliance in the house is potential cause for the noise, but also I am sure it comes from nearby outside places too.
I have confirmed noise causing source into HF in the house is, the worst is the Samsung LED TV, and then tumble dryer, washing machine, all the small switching power supplies and LED security lights and Radio Scanner and Computers and Monitors.
The only way I could tackle the noise was using RF attenuator button in TS-130SE. It works well, and really quieten down the hash noise. And I found balun could also choke the noise down.