Just an update on the earlier problem and the project.
I unsoldered R29 as the supply to the PLL chip as a first start. The 3.3V rail settled down but I don't think that wsa the problem. In any case I just resoldered the resistor and replaced the 3.3V regulator and all was OK ! No idea why. Maybe there is a dry joint somewhere that I disturbed.....
So I then walked through all the testes again and finished the PLL stage. The got the PLL to switch for both VCOs for the two testes so I soldered in the gain stage and entered in the frequencies in the config.
All seemed OK. It says it tunes up. Anybody know if that means it really has?
All good except it is not doing the business! My phone is right next to it but still got full bars! I don't have anything fast enough to hand to check the actual output
Also, I get spurious programs. I might be lucky and get 1 but normally I get over 100 with arbitrary frequencies. This makes it a bit hard to know what program is running. Any ideas? When I cycle the power sometimes new programs show up full of rubbish. So that's not very useful. Anybody know what the problem might be here? Seems like the memory area used for the programs is volatile. Can I change that someway?