[time-nuts] 10 MHz oscillators vs 100 MHZ
john at miles.io
Tue Dec 2 18:28:53 EST 2014
NEL has great OCXOs. Also worth checking out Wenzel (they own Croven Crystals and will sell them separately), Rakon, and Vectron.
I haven't seen any 100 MHz OCXOs rated for -145 at 100 Hz, but -135 can be had.
-- john, KE5FX
Miles Design LLC
> -----Original Message-----
> From: time-nuts [mailto:time-nuts-bounces at febo.com] On Behalf Of Ulrich
> Rhode via time-nuts
> Sent: Tuesday, December 02, 2014 10:27 AM
> To: time-nuts at febo.com
> Subject: Re: [time-nuts] 10 MHz oscillators vs 100 MHZ
> Hi from NJ,
> I am more involved in 100 Mhz to 128 MHz crystal oscillators and their
> measurements, 10 MHz design is new for me.
> I have analyzed and measured the famous HP 10 MHz SC based oscillator,
> disassembled it, admired and measured the crystal. Does anyone still makes
> a large and good device. Congratulations to the "inventor" of this
> oscillator !!
> Looking at 100 MHz oscillators, they have 18 to 20 dBm output and are
> advertised at -145 dBc/Hz at 100 Hz offset and - 187 dBc/Hz at 1 MHz, the 10
> oscillator just gets -165 dBc/Hz far off with NEL looking as the best.
> Who can get me up to speed ?
> Thanks, Ulrich , N1UL
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