Re: Bitx-40 DDS VFO
Hi Fernandotoggle quoted messageShow quoted text
Thank you for your email
We have used the 8.192Mhz xtal in the IF filter with the same values you
can find in the original diagram.
This kind of xtal in my case are to close one of the other and the filter
are narrow enough to show a very good performance.
The VFO is working in a very low frequency, because we are substracting
IF-VFO to get the frequency work.
Now I added a new DDS using VFO-IF and work very good too in 40m.
In the final stage to have more RF power we are using the W6JL MOSFET
lineal amplifier with 6 toroid from the light saver bulb burned with only
Have a good day
2012/11/7 Fernando Krouwel <flky661@...>