FT-8x7 Rig Locking

[VK5ZD]

I bought a ProgRock to see what they're like. Of marginal use for HF only. The 'locking' method is a reprogram the PLL to compensate for drift. By default this happens if the 27MHz reference is off by more than 5Hz (can be changed to 1Hz). When it does a correction there is a sudden jump in output frequency.