On Fri, Nov 17, 2017 at 09:09 am, Dave KE?OG wrote:
Hi Guys,
I double-checked that 3.9 is set for 40 meters, as it should be.
I took extra care to have the two channels identical. 10x setting on both the scope and probes, calibrated each probe, DC coupling on both probes. Per Hans, I attached the two probes to Clk0 and Clk1 for this screen, and then reversed for the next. Note that I moved the second channel up so it's obvious that the two test points are in phase.
And now swap probes between the two clock outputs.
--
Dave Casler
KE?OG
Colorado, USA
Hi Dave,
It looks like maybe CLK0 and CLK1 are shorted to each other since there appear to be three logic levels instead of just High and Low. One level when both CLK0 and CLK1 are? High, a second level when one of the clocks is Low and the other clock is High, and a third level when both clocks are low.
Check for a short.
73, Warren K2GQT
