Jerry I can confirm the VFO ?output is ?at 4.8 to 5 MHz ... It's all very strange for sure .. It's got me scratching my head , I've given up on the thing for now, It's in the draw , Ile use it as a basic signal generator , Ile box it up as this ... It's a shame as it looked promising for sure ?..my next thing then is to get a Copy of the Sketch for the Raduino that's used on the BITX-40 ..
Regards?
On Wed, 8 Feb 2017 at 20:04, Jerry Gaffke via Groups.Io
<jgaffke@...> wrote:
In your last post, you say: ? "The actual VFO output is doing as it should according to the scope and frequency counter"
By that, do you mean that you measured the frequency, and verified it is at 5mhz? ?If so, then the only way I see for it to be on USB is if the BFO got moved, perhaps by adding capacitance at C103. ?If that's the case, then either restore the BFO to where it was out of the box (move it back up in freq by about 3khz), or move your VFO to 19mhz (no offset, 19mhz as measured with the scope at the VFO output).
Jerry
On Wed, Feb 8, 2017 at 11:43 am, Jerry Gaffke wrote:
Did you use your scope to check the frequency coming out of the VFO? ?I'm betting it is up at 19mhz, not 5mhz.
?
Marc Jones