In message <[EMAIL PROTECTED]>, John Ackermann N8UR writes:
>There's information about my prototype (and a picture) at
>http://www.febo.com/time-freq/hardware/ICS525/
Running at 200MHz, the third harmonic at 600MHz is only
down -11.5dB, while the 5th harmonic at 1GHz is down -20dB.
With a 20MHz output, the 3rd harmonic is -10dB and you have
to get to the 23rd harmonic at 460MHz before you hit -30dB.
Uhm, this is actually a good thing. The thing is supposed to have
a square-wave output, so all the odd-numbered harmonics have better
be there and have better follow the 1/N amplitude law...
--
Poul-Henning Kamp | UNIX since Zilog Zeus 3.20
[EMAIL PROTECTED] | TCP/IP since RFC 956
FreeBSD committer | BSD since 4.3-tahoe
Never attribute to malice what can adequately be explained by incompetence.
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