Re: A simple question, I hope...
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Testing on-air?
There's a tuning device that was very popular a few decades back, and schematics are still available online.? It uses a 555 to generate approx. a 30% duty cycle CW key-down, and you can add a second 555 (or use a 556) to superimpose an audio signal on the CW.? It replaces your mic and just uses your keying line, unless you mix in audio.?
Either way it sounds like crap but it's a quick and easy way to get something to test CW and/or SSB out.? Use of a dummy load is recommended.? This link shows some possible options.
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Because it's basically an unfiltered square wave, you'll have enough key clicks to get a signal on SSB.?
When I built mine back around 1990 I labeled the box "N6OTQ Death Ray" because of the horrid noise it made on air.? Thankfully, nowadays it's fallen out of favor among the QRO folks.
73 ?Jim N6OTQ
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