Ok, so I whipped up a test board tonight as I got the PCB's delivered yesterday.
One small hiccup... I accidentally ordered an older revision of the PCB by mistake (because I'm an idiot haha) so I had to get creative to get some of the parts to fit.....
The good news is that it is now working! :D
So far, I have only tested it to a tiny bit over 1GHz from my Tek SG504 levelled Sinewave Generator, but using that and my SG503 levelled sinewave generator for the lower frequencies, I have verified that it currently works from 15MHz up to 1.05GHz over the entire input voltage range of 0.5V to 5.5V peak-to-peak. Not bad so far...
It does exhibit the expected spurious readout when there is no input applied, but playing with the bias on the prescaler chip inputs is a job for tomorrow. It's late, time to sleep happy with tonight's success. :)
Jared.
Jared Cabot