I would rather say DDS generated and poorly filtered
------Mensaje original------
De: David VanHorn
Remitente: time-nuts-bounces@febo.com
Para: Discussion of precise time and frequency measurement
Responder a: Discussion of precise time and frequency measurement
Asunto: Re: [time-nuts] FE 5680A "new version" - Filtering the 10 MHz
Enviado: 15 de nov de 2011 23:31
Close in impedance discontinuity?
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I would rather say DDS generated and poorly filtered
It's not generated from a DDS. It's from a xilinx PLD, then through a
L and then through a C to the RF connector. The signal at the L output
is fairly sinusoidal (at least monotonic near the crossing), but after
the cap, it's like that ...
Cheers,
Sylvain