Here is a link to an excellent video by RSGB. Thanks to Steve KA1CNF for locating this.
https://www.youtube.com/watch?v=8x6x_6mDVlQ
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Here is a link to an excellent video by RSGB. Thanks to Steve KA1CNF for locating this.
https://www.youtube.com/watch?v=8x6x_6mDVlQ