Hello Francesco:
you can use my xlock, http://www.qslnet.de/member/on4iy/xlock/xlock.html
You will have to add a varicap to make the XO into a VCXO.
There should not be any noticable noise increase due to the PLL - make
sure you use a good reference 10MHz in yr GPSDO!
73 xtof on4iy
On 02/02/10
Hi
The first issue - your oscillator may be drifting quite a lot. If so, that's
the first thing to check and possibly fix. A reasonable oscillator should be
able to hold less than 100 Hz at 42 MHz under normal room conditions. Fixes
range from circuit improvements, to a better crystal, to simply
Hi Bob,
On 2/2/10, Bob Camp li...@cq.nu wrote:
Hi
The first issue - your oscillator may be drifting quite a lot. If so, that's
the first thing to check and possibly fix. A reasonable oscillator should be
able to hold less than 100 Hz at 42 MHz under normal room conditions. Fixes
range
-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
Behalf Of francesco messineo
Sent: Tuesday, February 02, 2010 12:58 PM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] OT: Practical PLL low noise?
Hi Bob,
On 2/2/10, Bob Camp li...@cq.nu wrote:
Hi
Frank,
You might want to take a look in here also.
Hardly gets any simpler than this ;-)
http://w3ref.cfn.ist.utl.pt/cupido/reflock.html
Luis Cupido
ct1dmk.
On 02/02/10 16:50, francesco messineo wrote:
Hello all,
sorry for the OT, but I know there're many real electronic artists here.
As
