01-12-2017, 08:10 AM
(28-11-2017, 09:47 AM)VK5ZD Wrote: 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.
Thanks for the reply Iain.
Yeah not suitable when running digital modes on the higher bands then... I might need to try the Leo Bodnar design. The TCXO he has in that GPS unit stays stable using historical data if GPS is lost, then once signal is received again it seamlessly corrects itself. Seeing as though the XRef-FT's are hard to come by now it's probably my only option.