In the link below there's a photo of one of the units with a ruler against it -
11 wide.
Anthony
-Original Message-
From: time-nuts [mailto:time-nuts-boun...@febo.com] On Behalf Of Dave M
Sent: Monday, October 20, 2014 10:22 AM
To: Discussion of precise time and frequency measurement
My curiosity got the better of me so I ordered these earlier this week and
received them today.
I've powered both up and quickly measured the 10MHz output. I don't yet have a
GPS antenna feed that I can connect, so couldn't check that out. And I need to
look into why both of the units have
Let us know how this is progressing. I am waiting on a TNC connector, so can't
get mine up and running this weekend as planned. I'll get my power supply
sorted out and see if I can get SatStat connected.
Do you know if the GPS input provides a 5v bias to drive an antenna?
Anthony
: [time-nuts] Lucent KS-24361, HP/Symmetricom Z3809A, Z3810A, Z3811A,
Z3812...
Anthony Roby aroby at antamy.com wrote:
My curiosity got the better of me so I ordered these earlier this week and
received them today.
I've powered both up and quickly measured the 10MHz output. I don't yet have a
GPS
signal? Could you see a trace, or did I miss that in the pics? I'm a bit too
ham-fisted to go prodding around in mine, so I've left it closed after an
initial urge to see the top of the board.
Bob
From: Anthony Roby ar...@antamy.com
To: Discussion of precise time and frequency measurement time
Hal - there's nothing coming out of those connectors. I'll explore again once
I can get my GPS connected to the unit and see if that changes anything.
-Original Message-
From: time-nuts [mailto:time-nuts-boun...@febo.com] On Behalf Of Hal Murray
Sent: Sunday, October 26, 2014 4:11 PM
I played around today with these interfaces and couldn't get anything out of
them. I still don't have my GPS connected, but I would have thought I'd see
something out of one of the ports. I tested the serial port on my PC and that
is working, but I don't see anything of note coming off the
. Maybe it can
be changed to just double to 10 MHz. There are a few inductors on the board and
that may make for a filter.
I don't yet have a computer connected. Does the SatStat program run under
windows?
Regards,
Tom
- Original Message -
From: Anthony Roby ar...@antamy.com
I'm still having no luck with mine. When I power on, the LEDs cycle, the Fault
light is on and the No GPS and Standby lights flash. When I connect my GPS
antenna, the No GPS light stops flashing and stays on. After several minutes
only the Standby light is on.
When I connect both the Ref1
I was finally able to get my units to lock and behave as described below. I am
still unable to get any data into the PC, either via the RS422 to RS232 hack or
through Götz Romahn's modification of the RS422 output. This issue must be to
do with the voltage levels.
I did connect my scope up
,
When you ran Satstat, did you open the serial port? Click Commport-Settings
and set it 9600,8,N,1. Then click Commport-Port open. Works OK under XP for
me. I haven't tried it under Wine as I'm out of serial ports on the server and
have the laptop to use.
Bob
From: Anthony Roby ar
I've been reading a lot about ADEV and following the threads on the list,
particularly Karen's in-flight thread. What I haven't come across is a simple
explanation of the basic setup required to go about collecting the data. John
Miles referenced this page http://www.ke5fx.com/tpll.htm, and
For those who missed it, Arthur's post is at
https://www.febo.com/pipermail/time-nuts/2010-June/047825.html and the photo is
at
http://i906.photobucket.com/albums/ac262/rjb1998/RFTG-uREF1photo1_zps87c505ca.jpg
Anthony
-Original Message-
From: time-nuts
on it ?? phase as far as the
basement is concerned. There are a number of people on the list who have a
*much* better setup than I do downstairs. I doubt that there is anybody who has
exactly the same piles of this and that lying around that I have.
Bob
On Nov 1, 2014, at 9:29 AM, Anthony Roby ar
: Re: [time-nuts] Measuring ADEV for a beginner
Anthony,
On 11/01/2014 02:29 PM, Anthony Roby wrote:
I've been reading a lot about ADEV and following the threads on the list,
particularly Karen's in-flight thread.
What I haven't come across is a simple explanation of the basic setup
required
I wasn't clear from the photo whether the circuit was a representation of what
is on the board, and you just had to connect the pins listed together, or
whether this was a new circuit that had to be inserted. Sounds like the latter?
Anthony
-Original Message-
From: time-nuts
-boun...@febo.com] On Behalf Of Anthony Roby
Sent: Thursday, October 30, 2014 9:12 PM
To: Bob Stewart; Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] Lucent KS-24361, HP/Symmetricom Z3809A, Z3810A,
Z3811A, Z3812A GPSDO system
Yes I did, with XP running in VirtualBox
The photos I posted at http://goo.gl/87e8GG show the differences between the
two boards - there is more to it than just adding a GPS board. The underside
has a bunch of additional components beneath the antenna connector.
Anthony
-Original Message-
From: time-nuts
-boun...@febo.com] On Behalf Of Anthony Roby
Sent: Thursday, October 30, 2014 9:12 PM
To: Bob Stewart; Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] Lucent KS-24361, HP/Symmetricom Z3809A, Z3810A,
Z3811A, Z3812A GPSDO system
Yes I did, with XP running in VirtualBox
I have them running in a VirtualBox VM (Windows XP) on Windows 7. They seem to
work fine.
-Original Message-
From: time-nuts [mailto:time-nuts-boun...@febo.com] On Behalf Of Bob Camp
Sent: Monday, November 03, 2014 8:33 PM
To: Discussion of precise time and frequency measurement
My frustration with getting anything out of the Diag port onto a PC continues.
I received an RS422 to USB cable and also an RS422 to RS232 convertor but
neither of them has given me any success, on either box. I can see data coming
out of the port on my scope, on top of a noisy 1.2V line, but
Yes, all of that is the same as my setup and what I see. As I said, I can send
data to the boxes from a terminal program and see it coming back by scoping the
line. I may return the units and get a different pair. It just seems odd
that both units behave in this way.
-Original
I have both versions of SatStat (the HP and the Symmetricon). Both are set for
COM1 9660, 8, n, 1. Both are running in an XP VM. I have tested the
virtualized to physical COM1 connection using a terminal program and a scope,
so I know that works. When I select Port Open, I just get Trying
I had been unsuccessful communicating with these units using the RS232 to RS422
cable hack that Stewart Cobb described in his original post
(https://www.febo.com/pipermail/time-nuts/2014-October/087274.html). I was
able to see, via a scope, the data coming out of the REF 1 unit, but it was
My unit has been on for just over a week. I captured the data overnight - the
PPS TI plot is here
https://drive.google.com/file/d/0B5tlecUITRBLMVV4NzFTMnlNaDA/. I see a similar
PPS TI graph to yours, but my EFC is much different. Trouble is with that, I'm
not sure what I'm looking at and
If you search through the recent messages, you'll see a link to a set of photos
I posted. This one
https://drive.google.com/file/d/0B5tlecUITRBLc3JyMElTdUwzMHM shows the front of
the units. J7 provides the GPS power.
Anthony
-Original Message-
From: time-nuts
...@gmail.com writes:
In the picture its the top unit ref1 and its the left hand TNC and it does
power the antenna.
If no antenna you need to tie a resistor to ground on the tnc to fake it out.
Regards
Paul
WB8TSL
On Tue, Nov 18, 2014 at 11:49 AM, Anthony Roby ar...@antamy.com wrote:
If you
I'll fire up my lab PC and take a more recent screenshot of my data - when I
last looked the EFC was a straight line and PPS TI / s had settled down but was
still noisy.
-Original Message-
From: time-nuts [mailto:time-nuts-boun...@febo.com] On Behalf Of paul swed
Sent: Thursday,
can compare now.
Getting better.
Regards
Paul
On Thu, Nov 20, 2014 at 12:14 PM, Anthony Roby ar...@antamy.com wrote:
I'll fire up my lab PC and take a more recent screenshot of my data -
when I last looked the EFC was a straight line and PPS TI / s had
settled down but was still noisy
I have been using a Universal 24V 5A DC Switching Power Supply from eBay. I
have not seen my units draw more than 2A each - steady state is about 1.1A.
Anthony
-Original Message-
From: time-nuts [mailto:time-nuts-boun...@febo.com] On Behalf Of
planoph...@aei.ca
Sent: Friday, November
I sent you my posting earlier today, so hopefully you saw it. The Lucent unit
seems liberal in its interpretation of the pinouts, but once you've deciphered
it and got the +ve and -ve pins connected, it works reliably.
Anthony
-Original Message-
From: time-nuts
Paul - could you elaborate on where you made the connections? A few photos
perhaps?
Nice work,
Anthony
-Original Message-
On Dec 3, 2014, at 6:04 PM, paul swed paulsw...@gmail.com wrote:
Have successfully tapped into the clean 10 MHz of the the Lucent and
using a EL2020 50 Mhz
I'm in the same beginners' category as you. I'd do more but have other
projects on the go and have found I would need more equipment (GPIB interfaces,
a spectrum analyzer etc) to get much further. That said, I like the Lucent
KS24361 and have a few bits and pieces on order to tap into J8 on
There is a 4 pin header, SK4, on the edge of the board. The standard setting
is to short the top two pins. See also
https://www.febo.com/pipermail/time-nuts/2009-August/040381.html
-Original Message-
From: time-nuts [mailto:time-nuts-boun...@febo.com] On Behalf Of Larry McDavid
Sent:
Gerhard - I would like to make the board if you could make the layout
available. I don't have Altium, so would need the artwork to be able to toner
transfer the board. Is it available?
Thanks
-Original Message-
From: time-nuts [mailto:time-nuts-boun...@febo.com] On Behalf Of Gerhard
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