
Now, for the CW filter. Since I wanted to operate CW mode (using Morse Code), I knew I would need a filter that basically makes the receiver receive a narrower bandwidth, since CW doesn’t take up much bandwidth, the stock radio would pick up three or four different stations at a time if the band is crowded.
(the CW filter is the blue thing at the top)

What a difference it makes too, this weekend there is a ham radio CW only contest on the 160 meter band. Needless to say, the band is quite crowded. I knew to get the filter because more experienced operators have said so, but now, I really know why.
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