Tag Archives: QRP

Qrp project – filters

Figure 2: The extra harmonic filter is ready for action in this photo. I’d used a kit for the PA output LPF in the TX box, but when I added an additional filter between the Progrock and the BS170 driver, … Continue reading

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Purple Power

Figure 1: The “separates” approach to QRP (click to enlarge). On page one of this blog post, I mentioned that 10 or 20 milli-watts probably wasn’t going to cut it, at least not for regular CW (and not the weak … Continue reading

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A New QRP Setup

Figure 1: My recent purchase (from QRP-Labs.com) is shown along with homebrew TTL/RS232. Click to enlarge I was looking at the kitsandparts “one watter” transceiver, but it’s a “one bander” rig. It looks nice, but I decided that I wanted … Continue reading

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