Dear John and Andy,
Getting DDS spurs low enough for beacon use must be quite a challenge. At work, all of our DDS based signal generators, including the pricey ones, have quite a few spurs at the -80 dBc level- the nuisance is that they do not have easily predictable frequencies. We moan to the manufacturers but I have not seen much improvement over the last decade.
John, what sort of phase noise numbers do you get from the GB3MHZ beacon?
Alwyn Seeds, Director
114 Beaufort Street,
SynOptika Ltd., Registered in England and Wales: No. 04606737
Registered Office: 114 Beaufort Street, London, SW3 6BU, United Kingdom.