[time-nuts] T-Bolt output harmonics
magnus at rubidium.dyndns.org
Sun Aug 12 19:56:56 EDT 2012
On 08/13/2012 01:24 AM, John Miles wrote:
>>> 10MHz +9dbm
>>> 20MHz -50dbm
>>> 30MHz -37dbm
>>> no obvious higher harmonics
>>> broad noise envelope at 60> 75MHz @ -60dbm peak
>>> Are these results typical or might I have an adjustment or other problem?
> I seem to have missed the part where it's explained why anyone cares about
> the harmonic content of their 10 MHz source...? Don't worry about it, it's
> pretty much irrelevant. Harmonic filters can only hurt phase stability.
With an asymmetric filter, you get AM to PM conversion. Over-reacting to
overtones can get you into a place you don't want to be.
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