Re: [time-nuts] Lady heather plus NTP server?

[ken johnson]

Thanks for the reply Scott- but I have to say I am a little confused, LH is
running on a windows box and the program you pointed to is a linux one- am
I missing something here?

Ken.


On Fri, Jan 24, 2014 at 8:10 AM, Scott Mace  wrote:

> Try this:
>
> http://www.febo.com/pipermail/time-nuts/2010-February/044476.html
>
> It uses the NTP SHM reference clock.
>
> Scott
>
> On 01/20/2014 09:01 PM, ken johnson wrote:
>
>> I currently have my router/firewall acting as both an NTP client, getting
>> it's time from the net, and an NTP server serving my home network. Now I
>> have my thunderbolt and Lady heather working nicely, I would like to have
>> that machine act as the ntp server for my network, but it appears ntp
>> can't
>> understand tsip, and also with LH taking the com port, I can't see a way
>> of
>> ntp getting the data anyway.
>>
>> Is this possible to do, and if so,  can anyone give me some clues as to
>> how?
>>
>> Thanks, Ken.
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[time-nuts] Lady heather plus NTP server?

[ken johnson]

I currently have my router/firewall acting as both an NTP client, getting
it's time from the net, and an NTP server serving my home network. Now I
have my thunderbolt and Lady heather working nicely, I would like to have
that machine act as the ntp server for my network, but it appears ntp can't
understand tsip, and also with LH taking the com port, I can't see a way of
ntp getting the data anyway.

Is this possible to do, and if so,  can anyone give me some clues as to how?

Thanks, Ken.
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Re: [time-nuts] saving Lady Heather set-up?

[ken johnson]

Thanks Mark, one heather.cfg file coming up- now all I have to do is
remember what I changed...

Ken.


On Sat, Jan 18, 2014 at 2:52 PM, Mark Sims  wrote:

> Yes,  Lady Heather has two ways of loading/changing a configuration.
> You can put a heather.cfg file in your Lady Heather directory.  This file
> should contain any command line parameters that you want to use...  one per
> line with the '/' in the first column.  Use heather /? (or ? from the
> keyboard) for a list of command line options.  At the end of that help
> dialog screen it will tell you what your heather directory is.  Also see
> the comments at the start of the heather.cpp source code file...  that is
> where what passes for program documentation is...
> You can also make keyboard script files that when read in with the
> /r=???.scr command line option or the 'R' keyboard command will be read and
> the text in the file will act just like you typed it from the keyboard
> (with a few extensions that are documented in the comments at the start of
> the hearher.cpp source code file).  There is not a way to have heather
> automatically write a .SCR file that will re-create any changes to the
> configuration that you may have made...  your have to create the script
> file manually.  Script files can be nested up to five levels deep.
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[time-nuts] saving Lady Heather set-up?

[ken johnson]

Hi, I have now got my thunderbolt/Lady Heather set-up pretty much where I
want it, and want to keep all the changes I have made. Is there a way to
have Lady Heather save all the changes so when the inevitable reboot
occurs, I don't have to go through all the changes manually again- always
assuming I can remember them of course!

Thanks, Ken.
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Re: [time-nuts] The first FMT

[ken johnson]

Joe, I have placed the two .pdf's permanently on one of my web pages:-

http://www.vk7krj.com/ham_stuff.htm



Ken, vk7krj
www.vk7krj.com
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Re: [time-nuts] WWVB remodulator for the spectracom 8170 the schematic is to large

[ken johnson]

Also now on my web site,

http://www.vk7krj.com/ham_stuff.htm

at the bottom of the page, along with some other time-nut type files.

And, once again, if anyone has any other time-nut files they would like to
see hosted on a web page, I am happy to oblige. Just email me.

On Mon, Jun 17, 2013 at 10:24 AM, Majdi S. Abbas  wrote:

> On Sun, Jun 16, 2013 at 05:43:18PM -0400, paul swed wrote:
> > OK no schematic. It was 2MB. But it was a scan of my notes. Happy to post
> > to a sight or two. Can include some pictures also.
>
> There's a copy here for those that are interested:
>
> https://latt.net/wwvb%20remodulator%20spectracom%208170.jpg
>
> Majdi
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Re: [time-nuts] Good (cheap) PIC chip choice for project?

[ken johnson]

John, for guys like us who grew up with basic, there is an excellent
(compiled) pic basic from

http://www.protonbasic.co.uk/

I had a look at c, but decided at my time of life I wanted to produce
working projects not learn new (cryptic to me) languages so I stuck with
what I was comfortable with.

As others have already said, occasionally you may need a tight bit of
assembler for critical things but otherwise the high-level languages are
the way to go.

Ken, vk7krj
www.vk7krj.com



On Sun, May 26, 2013 at 1:47 PM,  wrote:

> Nice topic. I learned at bit. One source of info on the PIC is a course
> book and
> programming kit, programmer, prototype board and components set up by the
> ARRL.
>
> www.arrl.org
>
> You get all the stuff you need to get going. Software and a integrated
> development environment is provided. All in one package. They also have a
> couple of new courses on the Raspberry PI and the Arduino.
>
> I got into the PIC course last summer, read the extensive course book and
> learned to program the things. Made lights blink - also made LCD say "Hi
> Hottie" to my wife.
>
> My only comments -
>
> 1. Nice course for a beginner - my roots are old and in BASIC and FORTRAN
>  Still used today, on junker laptops. So it was fun go fool with assembly
> for while.
>
> 2. My impression is that the PICs are powerful if you do a lot with one,
> but there is a lot of work involved to get up the learning curve.
>
> 3. My conclusion is that my next venture - should it occur will be with an
> integrated product that I can program in high level, with good input and
> some display capability, because I just want to get on with the project,
> but then I am not making a production device.
>
> Others comments re the more complex boards appreciated and noted for
> future reference.
>
> -73 john k6iql
> -
>
>
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Re: [time-nuts] Simple NTP server based on a Raspberry Pi

[ken johnson]

Chris, I don't know about the RasberryPi, but the BeagleBone (

http://beagleboard.org/bone

makes an excellent web server, mine

 (www.vk7krj.com )

has been running for about 6 months now with no problems. Draws 2
watts and is completely silent.
Yes, the sd card has a finite life, but they are cheap and you can
clone them easily. When it starts to show errors, just replace it with
the clone. Also, the good ones have excellent wear-levelling software
built in, typical (claimed) life of around 5 years.

Ken J.

On Wed, Oct 31, 2012 at 3:17 AM, Chris Albertson
 wrote:
> One reason I asked abut load average is because I thought the Pi might
> make a good web and file server.  Seems like it might.  Those are
> services that also need to run 24x7
>
> Chris Albertson
> Redondo Beach, California

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Re: [time-nuts] Oscillator frequency?

[ken johnson]

Thanks Don and Allen, it's been that long since I played with radio I
had forgotten- 5.12 is half of 10.240 used to downconvert from 10.7 if
to 455. I had a look through the circuits for my rigs, and my
Eddystone 770r boat anchor uses 5.12MHz to align the various if's, and
multiples of it to align various other bits, so the ocxo may yet come
in handy.

Of course, that means I now need to look for yet another round tuit
for that job- there never seems to be enough round tuits for the jobs
currently on hand, let alone new ones..

On 2012-10-04 03:28, Don Latham wrote:> Hi Ken: I have two of these,
and had the same problem some years ago
> (see archives time-nuts). Nothing seemed to need this frequency. Fast
> forward to present. I'm using an ICOM 260A 2m all-mode xceiver for if in
> a 13 cm moonbounce system. The xtal frequency for the basic synthesizer
> in these units is 5.12 MHz. I played around with the idea of separate
> better xtals, until one day I was cleaning out. DOH! I now have a use
> for those weird OCXO's!
> Soo... never throw anything away, and never dismay, for all weird
> stuff WILL be useful someday. There's a coarse adjustment of some kind
> on these units.
> 73, Don AJ7LL
>

Ken, vk7krj
www.vk7krj.com

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[time-nuts] Oscillator frequency?

[ken johnson]

Hi, I have a tcxo that I recovered from a very old, suitcase-sized gps
receiver some years ago. The oscillator is marked "ERC
Eros-750-MA110", with an output frequency of 5.119155MHz. I have tried
to think of a use for for it but failed. I played with the numbers but
could not find anything useful, so I thought I would try the
collective wisdom of the list to see if anyone could come up with a
use for such an oddball frequency.

As an aside, it was fascinating to see a gps in discrete components,
lots of mixers (I recovered no less than 10, MCL ASK1 mixers and there
are still several left on the boards) on something like 7 or 8 , 200mm
square, gold-plated plug-in boards on a very nice card frame with
many, many interconnecting small-diameter coaxes with gold-plated
connectors.

Pity I wasn't interested in time-nuttery at the time, it probably
worked before I reduced it to component parts!

Thanks, Ken
www.vk7krj.com

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Re: [time-nuts] new member with questions NTP, PRS, GPS, ocxo

[ken johnson]

Again on power consumption, I used to run my web server (ubuntu
10.04lts) on a fanless mini-itx board, about 30 or so watts- now it's
on a BeagleBone arm board about the size of a credit card, still
running ubuntu , consumption is down to a whole 2 watts. I have it
running ntp and serving time to the rest of my home network. Even 'er
indoors thinks that sort of power consumption is acceptable!



On Sun, Aug 19, 2012 at 2:20 AM, David J Taylor
 wrote:
> From: Chris Albertson
> Sent: Saturday, August 18, 2012 4:55 PM
> []
> Power is a bigger issue.  It really does cost a bit to keep some
> machines owered up 24x7 and NTP needs to run all the time.  It takes
> NTP hours to stabilize and you want to wait 24 hours after to measure
> performance.
> []
> Chris Albertson
> Redondo Beach, California
> 
>
>
> I see this "hours" or "many hours" figure quoted, and yet here NTP is
> sufficiently accurate within a few minutes.  I'm thinking within 200
> microseconds, on a Windows system fed with a PPS signal on the serial port,
> which is good enough for me, but not perhaps for others.  To get within,
> say, ~10 microseconds on a FreeBSD system, then within an hour or so seems
> to be enough.  Agreed that running 24 x 7 is the ideal state for a server,
> and that a fanless Intel Atom system is an excellent way to reduce cost.
>
> Cheers,
> David
> --
> SatSignal Software - Quality software written to your requirements
> Web: http://www.satsignal.eu
> Email: david-tay...@blueyonder.co.uk
>
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-- 
Cheers, Ken
bats...@gmail.com
www.vk7krj.com

'It seems hard to sneak a look at God's cards. But that He plays dice and uses
"telepathic" methods  is something that I cannot believe for a single
moment.' (Einstein's famous quote on Quantum theory)

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Re: [time-nuts] Lady Heather command line?

[ken johnson]

Thanks Mike, that worked a treat- and next time, I will read the help
file in a bit more detail- I completely missed that one!

On Sat, Jun 2, 2012 at 7:07 PM, mike cook  wrote:
> Le 02/06/2012 09:22, ken johnson a écrit :
>>
>> Hi, can someone please tell me how to get the satellite graphic plot
>> up on lady heather by using command line switches at program start?
>> If I enter s then 3 when the program is running I get some displays
>> up, but when I try to add the commands to the startup it gives me the
>> help text. I have tried /s=3, /s3 and /s 3 but none work.
>
> try /gB
>
>
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[time-nuts] Lady Heather command line?

[ken johnson]

Hi, can someone please tell me how to get the satellite graphic plot
up on lady heather by using command line switches at program start?
If I enter s then 3 when the program is running I get some displays
up, but when I try to add the commands to the startup it gives me the
help text. I have tried /s=3, /s3 and /s 3 but none work.

I already have /f /t+10, both of which work ok, but getting the
satellite display up has defeated me.

Ken.

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Re: [time-nuts] Motorola UT+ Oncore GPS Timing Receiver 1ppsR5122U1154

[ken johnson]

If it's of any use to you, here is a link to the layout and parts
placement for a board I designed when I was playing with the oncore
for APRS some years ago. The board is designed so the motorola oncore
plugs in to the top of my board and is secured by 10mm high
stand-offs. My board supplies a regulated 5 volts to the oncore, and
has a max-232 for level translation to the db-9 on the end of the
board. It can also be fitted with a rt angle connector for the 1pps
from the oncore. The .pdf files are at the bottom of this page-

http://www.vk7krj.com/ham_stuff.htm


-- 
Ken.

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Re: [time-nuts] Thunderbolt Question

[ken johnson]

Not yet Marcus- that sort of technology will come right after the ftl
drive, but just before we start building a dyson sphere..


On Tue, Apr 24, 2012 at 7:00 AM, Magnus Danielson
 wrote:
>
>
> I thought someone finally put a cesium on the step motor keeping the ear
> rotation. But no, free-wheeling like always. There is no order in this
> universe.
>
> Cheers,
> Magnus

Ken.

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Re: [time-nuts] Schematic capture, anyone?

[ken johnson]

Hi Jim, for many years (over 20) I have used protel (now altium)
autotrax- not that I am recommending it to you, but it is a very
simple and intuitive program to use and I base my opinion of all the
others on it. All the more modern ones I have tried are, for the most
part, from fairly, to extremely, counter-intuitive.
Until I came across Target 3001.

http://server.ibfriedrich.com/wiki/ibfwikien/index.php?title=Main_Page

 It took me only a an hour or so to produce my first board with the
free version using the autorouter and schematic capture, which for me
is a very short learning curve! What I was also impressed with is the
3d image of the board which you can rotate to check component
clearances, etc.

Like Bruce, I persevered with eagle for a while, even got some boards
out if, but it was bloody hard work, and about as counter-intuitive as
they come so I gave up on that.

Having said all that, load 'em all on your machine and have a play-
different strokes for different folks.

On 2012-02-24 11:38, Jim Hickstein wrote:
> What do people use these days for schematic capture (and just possibly PCB 
> layout), for
> low-budget homebrew stuff? It's been so long since I did this, I still own a 
> T-square and
> a pile of contemporary relics like rules and triangles. I'll get out my 
> pencil sharpener
> if I have to. But really, this must be a solved problem by now. For less than 
> $300? I only
> need TTL, not striplines or any black magic like that.


-- 
Cheers, Ken
vk7...@users.tasmanet.com.au
www.vk7krj.com

'It seems hard to sneak a look at God's cards. But that He plays dice and uses
"telepathic" methods  is something that I cannot believe for a single
moment.' (Einstein's famous quote on Quantum theory)

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Re: [time-nuts] PicoPSU power supplies

[ken johnson]

John, there are several different versions of the pico supply, if you look
at the M2, M3, or M4-ATX, they are designed to run in a (12v) vehicle and
will work from 6v to 24v.  Take a look at:-

http://www.short-circuit.com/categories/dcdc.html

about half-way down the page.


On Sat, 04 Feb 2012 14:48:07 -0500, John Ackermann N8UR wrote:

>
>
> >
> > Finally, I found a manual for the PicoPSU on the web, and discovered
> > that when they say it's a 12V supply, they mean it -- there is an
> > overvoltage shutdown that's supposed to trip between 13.0 and 13.5
> > volts.  In practice, it seems that at least some of them are good for a
> > little bit more than that, because the 13.8V from my bench supply worked
> > OK.  But when the battery voltage hit about 14.1, that was too much and
> > the supply shut down.
>
> Ken, vk7krj
http://www.vk7krj.com
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Re: [time-nuts] GHz output from fe5680a

[ken johnson]

Hi Brent, yes I did thanks, but due to the slightly complicated way I have
to use to receive mail from the lists I am on, I replied to Steve's email
before I saw yours.  Your efforts are are appreciated, I am going to enjoy
reading the files.

On Wed, Feb 1, 2012 at 11:07 AM, KD0GLS  wrote:

> Ken,
>
> I sent you an email with all three documents attached.  Did you not
> receive them?
>
> .73,
> Brent, KD0GLS, Minneapolis
>
>
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Re: [time-nuts] FE-.5680A trimming resolution

[ken johnson]

Rob, I would be happy to put it on one of my web pages so people could
download it.

On Wed, Feb 1, 2012 at 8:14 AM, Rob Kimberley
wrote:

> If anyone is interested, I have just got hold of a PDF of the Technical
> Manual TM 5680-0211 for 5680A series Rubidiums.
> Please contact me off list for a copy (1M, so too large to post on
> time-nuts@febo.com)
>
>
>
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Re: [time-nuts] GHz output from fe5680a

[ken johnson]

Thanks for the reply Steve- yes, I can access nasa.gov and nist.gov ok, but
no matter which way I try,  tf.nist.gov just will not reply to my browser's
request. It's not as if my firewall is stopping the reply, there is simply
no reply coming back. The url resolves to 132.163.4.169, and a whois shows
it as tf.nist.gov, so there is no problem with the dns lookup. I did a
whois on my own public ip and it comes up ok as australian registered so
there shouldn't be any problem with it being blocked by nist I would have
thought. It is a puzzle- I really would like to have a read of these
documents!

On Wed, Feb 1, 2012 at 10:27 AM, Steve  wrote:

> Ken,
>
> The links are working fine for me on our home network and our firewall is
> set to medium/high security mode. Are you having the same issues with any
> other .gov links?
>
> Steve
>   --
>   Cheers, Ken
>   vk7...@users.tasmanet.com.au
>   www.vk7krj.com
>
>   'It seems hard to sneak a look at God's cards. But that He plays dice and
>   uses
>   "telepathic" methods  is something that I cannot believe for a single
>   moment.' (Einstein's famous quote on Quantum theory)
>
>
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Re: [time-nuts] GHz output from fe5680a

[ken johnson]

Does anyone else have problems with links to tf.nist.gov?  When I try to
get the pdf's, I get no reply from the url at all. My browser puts out the
request, but gets no reply whatsoever and eventually gives up. This also
happened previously with this url



I even tried turning my entire firewall off, but there is no reply coming
back to allow through. Any ideas anyone? Or could someone temporarily put
the .pdf's on a server somewhere so I can download them?


On 2012-01-31 16:24, Tom Van Baak wrote:
>
> You may find these two papers helpful:
>
> Introduction to time and frequency metrology
> http://tf.nist.gov/general/pdf/1288.pdf
>
> Fundamentals of Time and Frequency
> http://tf.nist.gov/general/pdf/1498.pdf
>
> /tvb

-- 
Cheers, Ken
vk7...@users.tasmanet.com.au
www.vk7krj.com

'It seems hard to sneak a look at God's cards. But that He plays dice and
uses
"telepathic" methods  is something that I cannot believe for a single
moment.' (Einstein's famous quote on Quantum theory)
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