FYI https://www.radioworld.com/global/chu-canadas-time-station
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That's excellent, will you by chance be making the printed circuit board design
public?
-=Bryan=-
From: time-nuts on behalf of Matthias
Welwarsky
Sent: December 12, 2020 12:49 AM
To: time-nuts@lists.febo.com
Subject: Re: [time-nuts] Ublox 8T - breakout board
Since the proposed board is not too dense you can provide the pads
for the SMA connector and driver circuitry and don't populate them
if you don't need that feature. But this is the time-nuts group so I
think that a lot of people would be interested in the PPS output.
Why would you get a uBlox
Hi
The issue with coax becomes:
Do you want to drive a terminated line?
On a board built for a single application, you likely know the answer to that
and can
design appropriately. On a general purpose board, you probably need to allow for
the “worst case” configuration ( = terminated). No,
On Samstag, 12. Dezember 2020 14:40:11 CET Bob kb8tq wrote:
> Hi
>
> If you are going to drive much with the timepulse output, you will need to
> buffer it. This is true for just about any practical length of coax. It also
> applies to other cables once they get past the “few inches” range.
>
>
Hi
If you are going to drive much with the timepulse output, you will need to
buffer it. This is true for just about any practical length of coax. It also
applies
to other cables once they get past the “few inches” range.
Ideally the coax buffer would be something like 4 or so ‘125 buffers in
May I suggest adding another SMA connector for the timepulse signal.
Perhaps route the timepulse trace to the SMA first then to the DIP
header. This would allow you to cut the trace to the DIP header. This
might improve signal integrity.
Pete.
On 12/12/2020 3:49 AM, Matthias Welwarsky wrote:
Just a thought re these LEA-M8T modules, but I don't recall seeing any previous
mention that the
same seller also has two other items with them still mounted on an interface
board, these are
Ebay items 33619130232 and 333820728021.
Yes, they're more expensive, but perhaps the extra convenience
Thanks Bob, for what the seller is asking might be worth picking one up to play
with.
-=Bryan=-
From: time-nuts on behalf of Bob kb8tq
Sent: December 11, 2020 5:08 PM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] Ublox 8T
