--- In softrock40@..., windy10605@... wrote:
You would expect the third harmonic to be the predominant one with
no
filtering. You are using the DDS-60 for the OSC on the SR-40,
right ? set
to receive 1Mhz ? What are you doing to measure the harmonics ?
73 Kees K5BCQ
Kees,
I'm using a DDS30 set to 4mhz connected to base of SR40 OSC transistor
with feedback caps removed. I have a HP654 generator with calibrated
output attenuators. By using one of ROCKY'S DB lines as a reference
the test generator can be adjusted to the same line and the attenuator
read as the difference in db.
Please connect that MiniCiruit transformer and verify my results.
Joe wa9cgz
