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