[NLRS] 10 MHz frequency standards

[Bruce Richardson]

Hi John:

Take my comments with a grain of salt because I too have
collected many things over the years (such as the Pyroejoe
10mhz gps discipine thing) and still have none of it on the
air.

My plan is to use a quality 10MHz OCXO.  Undisciplined, just
mounted and running on my dish. Possibly/probably I'll have
a dedicated battery for it.  From time-to-time, I'll bring
that OCXO in the house and trim it to match my GPS standard
in the house. I have a phase comparator in one of my
Spectracom WWVB receivers. (What are some of the rest of you
using for phase comparators on your benches?).  I'll trim
the OCXO before major events.  That's my plan and as complex
as I really want to go. And yes, this OCXO will input to the
A32 board in my 10G xverter.

While the rubes are reasonably priced these days, I like a
50-75$ quality OCXO vs 100+ rube. And all rubes expire when
the tube goes bad (so I'm told).  And I have some of the
thunderbolts, but I don't want to fiddle with GPS antennas
and lock up times.

So, those are my thoughts. I look forward to the discussion.
73
Bruce Richardson W9FZ

> -----Original Message-----
> From: nlrs-bounces at mailman.qth.net 
> [mailto:nlrs-bounces at mailman.qth.net] On Behalf Of
tosca005 at umn.edu
> Sent: Wednesday, September 16, 2009 8:11 AM
> To: NLRS Reflector
> Subject: [NLRS] 10 MHz frequency standards
> 
> 
> 
> 
> Which do you think would provide a superior 10 MHz
frequency 
> standard to 
> lock a 10368 MHz transverter using an Apollo board?
>   -- rubidium oscillator
>   -- Thunderbolt GPS disciplined OCXO
<snip>