Using solder for any wire that flexes frequently is not a good idea.? The solder will make the wire brittle and it will break over time.? Proper crimping is much better and is the professional choice for reliability as well as faster application.
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Wrapping tape around a plug and socket is very poor practice if used to provide physical mating strength.? Again, professionals never do this.
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Having worked in commercial broadcasting, as well as military communications maintenance, many in those fields won't hire the average ham for the above reasons--sloppy and unprofessional practices.? There is no good reason (except for temporary expediency) to use such practices.? All of us Amateur Radio operators can be professionals in our chosen avocation.? I encourage all hams to search for and achieve excellence.? If we invest hundreds and even thousands of Dollars in our stations, a few more for proper tools and even connectors will bring us reliability and even pride in our accomplishments.