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My wavetek sig gen covers 100KHz to 512 MHz and puts out about 10mW. I
need a simple circuit to cover HF which will boost this up to 500mW. I would like to try out the signal generator as a low power CW transmitter. I did something similar when I first was licenced in 2001, but I would not recommend it now. I used my Leader LSG-216 signal generator as a VFO followed by a 1 Watt amplifier that I put together myself. It worked and I had several QSO's with it, but after several RST xx8 reports I found that the signal generator had hum modulation and some jitter. I have later learnt that this is almost inherent in a synthesizer which covers a large frequency range. It has very large VCO gain: MHz/Volts - change in frequency per change in voltage in order to cover the large frequency range. But this also makes it very sensitive to noise in the control voltage. As a signal generator, i.e. a tool for aligning circuits and so on, this is not a problem. Sverre LA3ZA www.qsl.net/la3za |
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