Hello!
I recently bought some Milliren DOCXO oscillators and some of them
unfortunately come defective (probably because of shipping).
I opened one without output (the crystal turned out to be broken...) and
made some pictures for your information.
http://www.ermione.com/DSCF0741.JPG thru 0748.
Andrea wrote:
I see. This configuration is in effect a common gate B-class (or AB, or
barely A) amplifier and the rectification is a side effect.
But, what is the advantage between it and a couple of diode-connected
transistors with a full A-class (more linear, so less spurs)
amplifier in
On Sat, Jan 31, 2015 at 01:37:47PM -0500, Charles Steinmetz wrote:
Andrea wrote:
the square-law characteristic of devices should be avoided, so the
configuration of the doubler must be some sort of ideal full wave rectifier
I disagree strongly with this, at least where push-push JFET
Whilst input frequency related spurs can be significantly reduced with a
suitable filter incorporating a sufficient number of series tuned traps plus
a low pass filter, phase noise once incurred cannot be reduced by such
means.
The ultimate measure of performance of the phase noise performance
NAVCEN issued an alert regarding receiver errors in handling the current
pending leap second data like has occurred with the Skytraq receiver.
Several brands/models were affected. I have not seen the original alert,
but here is an article summarizing:
http://www.insidegnss.com/node/4398
Keith
I have had over a dozen HP5370 counters that used the 10544A. I have noticed
the 10544A's tend to have quite a bit better aging characteristics than the
10811A. As with all things oscillatory, it could just be luck of the draw or
due to the fact that they are older than the 10811's and have
We have received some additional information from Skytraq regarding the
leap second error:
The faulty version firmware indicates leap seconds (17) from now to June
16th (two weeks before June 30th). During June 16th ~ June 30th, leap
second will recover to 16 and change properly to 17 on June
