To All VLF. Is the following frequency stability sufficient for Spectrum Lab: 1MHz and 10MHz derived from Radio 4 198 kHz Accuracy 2 parts in10-8 over 1 sec,2 parts in10-9 over 10secs. 73s Ken M0KHW
To All from PA0SE A simple system combining the flexibility of a VFO with the stability of a quartz crystal is a V FO + "Huff and Puff" frequency stabiliser. This device frequency-locks the VFO to th