Hi Russ,
When testing rubidiums in my lab yesterday, I found that my main
counter-pair (a CNT-90 and a SR-620) was way off, it seems like my
primary GPSDO (a Thunderbolt) didn't like the situation. Will have to
check things. A few rounds more. Also considering that I have a few
(more) cesiums to test now. Ah well.
So, I will have to check on my GPSDO... luckily I have several :)
Cheers,
Magnus
On 01/23/2013 09:28 PM, Russ Ramirez wrote:
Hi Magnus,
The idea of not having to wonder if I can trust the source, i.e. a GPSDO,
is appealing for sure, and one more antenna isn't going to hurt :-) Thanks
for your reply.
Russ
On Wed, Jan 23, 2013 at 1:45 PM,<time-nuts-requ...@febo.com> wrote:
Message: 5
Date: Wed, 23 Jan 2013 20:17:01 +0100
From: Magnus Danielson<mag...@rubidium.dyndns.org>
To: time-nuts@febo.com
Subject: Re: [time-nuts] Least costly 10 MHz reference solution
Message-ID:<5100372d.30...@rubidium.dyndns.org>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Russ,
Welcome!
A rubidium or GPSDO such as Thunderbolt can be found fairly cheaply.
If you go for a Thunderbolt, get one with antenna as a kit, mostly
because it is a handy way to get started. For better stability you can
get a better antenna later, if the need would occur.
The rubidium should give you the precision you need straight out of the
box, unless it has "issues". In order to control if it has issues,
having the ability to at least compare to GPS becomes obvious, so you
end up wanting that GPSDO anyway. You can get both for reachable money
anyway, if you look around long enough.
Doing a home-cooked GPSDO is fun naturally, and there is an art in
low-budget designs giving fair amount of performance.
Cheers,
Magnus
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