Hi Corby,
Do you have some news?
thankyou,
Luciano
Da "time-nuts" time-nuts-boun...@lists.febo.com
A time-nuts@lists.febo.com
Cc
Data Mon, 22 Apr 2019 08:11:01 -0700
Oggetto [time-nuts] Neat looking DMTD unit on eBay
Hi,
A friend directed me to th
Hi
With any DMTD, the offset between the LO and the DUT is a critical part of the
resolution. Without much info on the LO, it is not very easy to work out just
what
they might or might not be doing.
That said, with “normal” offset frequencies, a filpflop would be challenged to
hit
the sort of
Hi,
It would be very interesting to see how it performs, but if nothing
else it might help to generate a market for this sort of thing.
Most folk don't have the necessary combo of time and skills to design
and make their test gear from scratch, but otherwise the options seem
very limited at the
A typical system noise floor in the mid to high E-13's isn't really
exciting.
It's just not good enough for measuring good crystal oscillators at
tau=1s, not even to speak of BVA's. Ok for GPS frequency standards.
A well built W. Riley Mini DMTD performs better by an order of magnitude.
Hi
All of the divide by 2 stuff and the frequency counter on the input would make
more
sense with a DFF as a mixer. It also might explain the use of a 3V CMOS signal
as
the “standard input”.
It may all be in an FPGA.
One thing missing in the info - can the LO be tuned at all? If not, you
The mention of deglitching after the mixers perhaps indicates that the mixers
may be flipflops and that the device is perhaps a DDMTD. Alternatively the
block diagram is intentionally misleading.
Bruce
> On 23 April 2019 at 03:11 cdel...@juno.com wrote:
>
>
> Hi,
>
> A friend directed me
Hi,
A friend directed me to this listing. Nice looking DMTD unit.
Low power and compact!
Has anyone played with one of these yet?
https://www.ebay.ca/itm/123728915157?ul_noapp=true
Cheers,
Corby
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