Re: [time-nuts] Unix software to generate nice looking *DEV plots

[Poul-Henning Kamp]

In message 

Re: [time-nuts] Fw: 5065

[paul swed]

Yes. Thats an original. But someone posted on time nuts an alternate to
amphenol and at a reasonable cost that was brand new. Thats how I came by
my sets.
I agree with Pete you do find them at hamfests in various condition.
Regards
Paul
WB8TSL

On Thu, Mar 17, 2016 at 4:04 PM, Pete Lancashire 
wrote:

> Anywhere there is a concentration of HAMs you should be able to find the
> connector. I found the one for my 5061 at a ham swapmeet and found another
> for a friend by asking a few hams who were the 'collector' type.
>
> On Thu, Mar 17, 2016 at 10:54 AM, paul swed  wrote:
>
> > Both good answers the old connect to the bottom, and my favorite get the
> > connector. I used both methods. Connected to the bottom, fixed the unit,
> > purchased the real connector. It was something like $18 or $30.
> > Search time nuts because 2 years ago someone figured out the model
> numbers
> > and source. Something like greybar as the supplier. The same connector
> also
> > works on the HP cesiums. I pulled the connector off but unfortunately no
> > useful numbers.
> > It can be strapped for either voltage and as suggested get the manual
> from
> > Artek.
> > Regards
> > Paul
> > WB8TSL
> >
> > On Thu, Mar 17, 2016 at 12:35 PM, Poul-Henning Kamp 
> > wrote:
> >
> > > 
> > > In message , "Tom Van Baak"
> > writes:
> > >
> > > With respect to 120/240VAC, the 5065 I have is jumpered for 5065, the
> > > manual
> > > (available from Artek) has the details.
> > >
> > > --
> > > Poul-Henning Kamp   | UNIX since Zilog Zeus 3.20
> > > p...@freebsd.org | TCP/IP since RFC 956
> > > FreeBSD committer   | BSD since 4.3-tahoe
> > > Never attribute to malice what can adequately be explained by
> > incompetence.
> > > ___
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> > > To unsubscribe, go to
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> > > and follow the instructions there.
> > >
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[time-nuts] Unix software to generate nice looking *DEV plots

[Attila Kinali]

Moin,

I'm looking for some non-GUI software to generate the different *DEV
plots we generally use to asses oscillators with. Timelab is nice,
but if you are evaluating two dozen measurements using different
parameters, it becomes very tedious to generate the plots. Not
to talk about the problem that the plots are not really reproducable,
which is a very important property, when publishing results.

I could for sure write myself wrappers around gnuplot/ploticus/mathplotlib/..
to generate the *DEV plots, but I'm not keen on reinventing the wheel.

Thus I'd like to ask whether someone has any hints on what to use.

Attila Kinali

-- 
It is upon moral qualities that a society is ultimately founded. All 
the prosperity and technological sophistication in the world is of no 
use without that foundation.
 -- Miss Matheson, The Diamond Age, Neil Stephenson
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Re: [time-nuts] Z3801A EEPROM

[Joseph Gray]

Magnus,

Yes, I know that is how it works. I was just curious if anyone knew
how and where that information was stored in the EEPROM. I thought it
might be nice not to fool around with trying to set the date before it
queried the satellites, to avoid the 1024 week issue. If I could
update the EEPROM, I'd be good for at least this 20 year cycle.

I know, this issue doesn't come up often, unless the unit get's power
cycled, which isn't often (usually years). But thinking about the
small stuff is what makes me hang around with everyone else here. This
came up recently because of my troubleshooting a flakey Z3801A and the
fact that I traded for another Z3801A.

Joe Gray
W5JG

On Fri, Mar 18, 2016 at 3:42 PM, Magnus Danielson
 wrote:
> Joe,
>
> On 03/18/2016 02:33 AM, Joseph Gray wrote:
>>
>> Referring to this old post:
>>
>> https://www.febo.com/pipermail/time-nuts/2011-December/061718.html
>>
>> In particular, this statement:
>>
>> "but If the RTC in the receiver is not set or its battery has failed,
>> and the reference year stored in EEPROM is also wrong, the receiver
>> may select the wrong 20-year window."
>>
>> Does anyone know where in the EEPROM the reference year is stored and
>> in what format? I thought that while I have the unit on the workbench,
>> I might also get it on the current 1024 week cycle. I'd also do the
>> spare unit I just traded for.
>>
>> Yes, I'll add a battery pack as well :-)
>
>
> As I gather it, the Z3801A relies on the GPS receiver board to give the time
> in correct form. Might be some setup it does.
>
> Cheers,
> Magnus
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Re: [time-nuts] Fw: 5065

[Tom Miller]

Most of the time I have seen the MS3106 style connectors used for power on 
mil spec applications.


Does this one look like it is right?
http://www.mouser.com/ProductDetail/Amphenol-Industrial/MS3106F14S-1S/?qs=sGAEpiMZZMv%2fye0hRulZR2pdaTIihrgU32yg4H0jMKs%3d

If so, you should be able to get it on the surplus market fairly cheap.

Regards,
Tom



- Original Message - 
From: "J. L. Trantham" 
To: ; "'Discussion of precise time and frequency 
measurement'" 

Sent: Thursday, March 17, 2016 5:56 PM
Subject: Re: [time-nuts] Fw: 5065



Ulrich,

The connectors can be obtained reasonably inexpensively from Galco.

http://www.galco.com/shop/Circular-Connectors

They are a 3 pin circular connector, consisting of three parts, that are 
purchased as an 'insert', 'shell', and 'clamp', IIRC.  I don't have the 
part numbers in front of me but they are the same for the 5061 Cesium 
standards.


I can get you the specific part numbers if you can't find it in the 
archives.


I used a spare 3 wire extension cord and just cut the end off the cord and 
installed the connector to mate with the 5065A and 5061A.  I've been told 
that the wiring is different between the 5061A and some of the 5065A's but 
I've never found a 5065A that was different from my 5061A.


Might want to open the unit and make sure the wiring matches the 
schematic.


Good luck.

Joe

-Original Message-
From: time-nuts [mailto:time-nuts-boun...@febo.com] On Behalf Of KA2WEU---  
via time-nuts

Sent: Thursday, March 17, 2016 9:30 AM
To: time-nuts@febo.com
Subject: Re: [time-nuts] Fw: 5065


The HP 5065A Rubidium Frequency Standard requires  a circular 3 pin 
adapter cable that  can be plugged into 115V AC outlet.
I checked all cables I have  and this particular cable  is not finable. 
Can the unit set to 110/220 V

Maybe  this cable can be  purchased  or assembled ?   ULRICH
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Re: [time-nuts] Home-brew GPSDO

[Jim Harman]

On Thu, Mar 17, 2016 at 4:38 PM, Nick Sayer via time-nuts <
time-nuts@febo.com> wrote:

> Anyway, my hat’s off to Jim - it’s an extremely elegant mechanism, and it
> was inexpensive both in parts and board space to add.


Thanks for the kudos Nick. The design is what I just posted on another
thread if you want to see the schematic. Credit for the design actually
goes to Lars Walenius, who posted it here a couple of years ago.


-- 

--Jim Harman
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Re: [time-nuts] Framework for simulation of oscillators

[Attila Kinali]

On Thu, 17 Mar 2016 06:20:00 -0700
jimlux  wrote:

> On 3/17/16 2:56 AM, Attila Kinali wrote:
> 
> >
> > As I am pretty sure not the first one to attempt something like this,
> > I would like to ask whether someone has already some software framework
> > around for this kind of simulation?
> >
> > If not, does someone have pointers how to write realistic oscillator models
> > for this kind of short and long term simulation?
> 
> what do you want the output of the model to be?  Samples of the sine 
> wave, time of each cycle, frequency at discrete intervals?

I think the best thing would be to ouptut when each node sends a pulse.
Which happens every n'th clock cycle of the oscillator and are in our
current implementation 50us apart (aka 20kHz). The pulses from all nodes
are closely synchronized (sub ns phase difference). I think for all practical
purposes, we can replace the "high" frequency crystal oscillator by a
"low" frequency one (at the rate of these pulses) that then drives the
algorithm of the nodes (aka the PLL)

I don't really care what happens between these pulses, as we currently cannot
measure it. At a later stage of the project we might be able to do so,
but for the moment,  it's ok if we can correctly describe the behaviour
at tau's between 50us and <10ks.


Attila Kinali

-- 
It is upon moral qualities that a society is ultimately founded. All 
the prosperity and technological sophistication in the world is of no 
use without that foundation.
 -- Miss Matheson, The Diamond Age, Neil Stephenson
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[time-nuts] How to run Lady Heather under Windows10

[Neville Michie]

Hi,
a new laptop and a new problem,
I can not find COM1, and the slash command
on Lady Heather provokes a response that spaces and slash 
marks are illegal in file names.
Any ideas?

thanks,

Neville Michie
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[time-nuts] Difference between Oncore models

[Joseph Gray]

I understand that the Oncore GPS in the Lucent units is a newer module
that tracks eight satellites, vs the older Oncore in the Z3801A that
only tracks six satellites.

I decided to do a re-survey with my Z3801A that has been in holdover
for some time, just as a test. Watching the status screens from both
GPSDOs, both are seeing the same number of satellites, however, the
Z3801A is consistently locking to 3-4 fewer than the Lucent.

This begs the question, is the older Oncore module that deaf, or is
mine defective. BTW, same antenna on a 4-port splitter, same elevation
mask.

Joe Gray
W5JG
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Re: [time-nuts] How to run Lady Heather under Windows10

[David J Taylor]

There are multiple possible issues:

1) Most (like 99.99%) new laptops do not have a com port, that gets you to 
some sort of external port
2) USB is pretty common, but as mentioned in another thread, ethernet and 
bluetooth are also quite possible.
3) Since it is an external bus, the connection it’s self may be down (bad 
cable / hub / out of range / turned off …)
4) Assuming the connection is there, you now need drivers. They have to 
match both the device and the OS


Yes, this is “fun”. It’s hardly restricted to serial ports or to any one OS. 
My $6 Chinese clone programming adapters
just stopped working when the FPGA vendor upgraded their software. Oddly 
enough, the vendor’s $300 adapter still
works fine with the new drivers. Since I didn’t pay $294 for the IP 
protection when I bought my clones … that’s the way

it works. Hopefully there will be new clones along “real soon now”.

If your (a wild guess) USB serial adapter is not being recognized, I’d check 
the driver status in your OS. Google is
quite helpful coming up with multiple screen shots of how to get to the 
right screen for just about any OS version on
the planet. That screen will show you if the driver is installed and what 
com port the driver decided to use. The port number
is a driver (not os) decision in many cases. It could just as easily be 
Com56 as Com1. The drivers do this so they don’t

“duplicate” a previous assignment.

Lots of fun…

Bob
=

Bob,

USB to serial, I can recommend:

 
http://www.amazon.co.uk/gp/product/B004ZMYTYC?psc=1=true_=oh_aui_detailpage_o02_s00

which works well under Windows-10.  It has an FTDI chipset and not a copy. 
Must be about US $20.


Whatever I'm using to talk to my Arduino board also works - ah, that's a 
genuine FTDI chipset as well.  But I do have a PL cable which also works 
nicely.


I certainly don't think that needing to upgrade drivers or a single piece of 
hardware is a sufficient reason for someone to swap back to Win-7.


Cheers,
David
--
SatSignal Software - Quality software written to your requirements
Web: http://www.satsignal.eu
Email: david-tay...@blueyonder.co.uk
Twitter: @gm8arv 


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Re: [time-nuts] Difference between Oncore models

[Artek Manuals]

Joe

The newer Motorola VP-Oncore  receivers are known to be an improved 
design over the original Oncores that came with the Z3801A's .


I have recently done some  side by side comparison's with two z3801A's 
on the same antenna the newer Vp-Oncore's ran SS numbers 15-30 points 
higher on the same bird than the older receiver. In all fairness the 
older receiver is on its last legs (see last paragraph below)


I also found out that there are two versions of the newer VP-Oncore. 
These can be distinguished by the antenna connector, One version has a 
right-angle chassis mounted connector like the original 6CH Oncore, the 
2nd version has a straight on antenna connector. This 2nd version while 
they will work in a Z3801A, have an interference fit problem with a an 
IC  on the board below when the antenna cable is plugged in and you 
can't tighten down all the receiver board mounting screws. I am told 
that the straight on version fits the Z3816A with no problem. I have not 
verified this since I don't have a Z3816. I have no info  on the other 
Z38xx models and the fit of the later VP-Oncore


The older 6ch Oncore receivers receivers are beginning to die 
apparently.  I have had one fail here a few months ago and recently 
acquired a 2nd Z3801A  that is displaying similar symptoms to the first 
failure in that the receiver just stops working after a few hours...over 
time the symptom  are the receiver drops out for no apparent reason 
then revives if the unit is powered off for a while. Over time the time 
to receiver drop out gets shorter and shorter after each successive 
power cycle, I have one receiver that will now fail within 20 minutes 
predictably.


Dave
NR1DX



On 3/16/2016 7:03 AM, Joseph Gray wrote:

I understand that the Oncore GPS in the Lucent units is a newer module
that tracks eight satellites, vs the older Oncore in the Z3801A that
only tracks six satellites.

I decided to do a re-survey with my Z3801A that has been in holdover
for some time, just as a test. Watching the status screens from both
GPSDOs, both are seeing the same number of satellites, however, the
Z3801A is consistently locking to 3-4 fewer than the Lucent.

This begs the question, is the older Oncore module that deaf, or is
mine defective. BTW, same antenna on a 4-port splitter, same elevation
mask.

Joe Gray
W5JG
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--
Dave
manu...@artekmanuals.com
www.ArtekManuals.com

---
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Re: [time-nuts] Framework for simulation of oscillators

[jimlux]

On 3/17/16 2:56 AM, Attila Kinali wrote:



As I am pretty sure not the first one to attempt something like this,
I would like to ask whether someone has already some software framework
around for this kind of simulation?

If not, does someone have pointers how to write realistic oscillator models
for this kind of short and long term simulation?



what do you want the output of the model to be?  Samples of the sine 
wave, time of each cycle, frequency at discrete intervals?


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Re: [time-nuts] Serial-Ethernet

[Bob Camp]

Hi

The graph is a nice way to see if there are any strange humps in the dac info 
when 
it is translated into frequency. We are used to looking at ADEV plots so it is 
not a
bad way to present the data. If you have a unit that goes crazy every few 
hours, it
will give you a bump on the plot.

Bob

> On Mar 16, 2016, at 11:00 PM, Joseph Gray  wrote:
> 
> Yes, I should have realized that it wasn't comparing the GPSDO against
> anything. So, what is the point of this graph in Z38xx?
> 
> On Wed, Mar 16, 2016 at 7:39 PM, Bob Camp  wrote:
>> Hi
>> 
>> Be *very* careful looking at plots based on translated DAC readings. You 
>> don’t really have all you need to come up with proper numbers. A simple 
>> scale error can make things look much better or much worse than they 
>> actually are.
>> 
>> Bob
>> 
>>> On Mar 16, 2016, at 7:54 PM, Joseph Gray  wrote:
>>> 
>>> Well, the 4-port serial to Ethernet converter has been running for 22
>>> hours, collecting data from two GPSDO's and it hasn't missed a beat.
>>> 
>>> Although I have had the Lucent unit running for several months, this
>>> is the first time I have hooked up to the RS-422 port and taken data
>>> from it. From the look of this graph, it seems to be performing quite
>>> well.
>>> 
>>> https://dl.dropboxusercontent.com/u/19599147/Lucent%20Adev.png
>>> 
>>> Joe Gray
>>> W5JG
>>> 
>>> 
>>> On Tue, Mar 15, 2016 at 7:05 PM, Joseph Gray  wrote:
 On Thu, Feb 25, 2016 at 1:38 AM, Tom Van Baak  wrote:
> 
> And, if you have a couple of 422 devices, consider the economics of a 
> 4-port unit like:
> 
> http://www.ebay.com/itm/301881123530
 
 As promised, I am reporting on the USR-N540, 4-serial-port to Ethernet
 box that Tom linked to. I had originally found it for less, but after
 ordering, the seller emailed back to tell me he had no more at that
 price. In any event, after about three weeks from China, my unit
 arrived today. I haven't had any long term experience with this thing,
 so hopefully it will continue to work.
 
 It was very well packed in a small box with hard foam. Included are
 the converter box, wall wart (switcher), 2-pin screw terminal power
 adapter, serial cable, Ethernet cable and four DE-9 to 4-pin screw
 terminal adapters (for RS-422, RS-485). No documentation and no
 software. The box is made from steel and seems substantial. The power
 input is labeled "DC: 9-24V".
 
 I downloaded manuals and software from here:
 http://www.usriot.com/p/4-serial-port-to-ethernet-converter/
 
 One annoying thing is that the box is setup with a static IP, instead
 of DHCP. The default IP of 192.168.0.7 is printed on the bottom, as
 well as in the manual. The MAC address is not printed on the bottom.
 The manual also lists the default login credentials.
 
 I initially only configured Port 1 in the web interface, to test with
 my HP Z3801A (RS-232, 19200, 7, odd, 1). I then installed the Virtual
 Serial Port software. This seems to be a licensed version of the
 Eltima software http://www.eltima.com/products/vspdxp/. Or, perhaps
 the Eltimat software is licensed from USR IOT?
 
 In the software, you can click on the "Smart VCOM" button and all four
 ports will be assigned for you, using the first available port numbers
 on your PC. I wanted a sequential range of 10-13, so I configured each
 port individually, using the "Add COM" button. The interface box uses
 TCP/IP ports of 23, 26, 29 and 32 by default, but these can be changed
 in the web interface. Interestingly, the MAC address can also be
 changed.
 
 The web interface is very well laid out and logical, as is the Virtual
 Serial Port software. I have been connected to the Z3801A for almost
 half an hour and things seem to be working just fine. I'll update if I
 encounter any problems later. I will have to try the RS-422 with my
 Lucent GPSDO.
 
 All in all, I am pleased with this converter box. At $20 per port, it
 seems like a good deal for a new item. I know that others are using
 surplus terminal servers that they bought for less.
 
 Approximate dimensions: 8.5" (including mounting ears) x 4.75" x 1.2"
 
 Joe Gray
 W5JG
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Re: [time-nuts] Z3801A EEPROM

[Hal Murray]

jg...@zianet.com said:
> I know, this issue doesn't come up often, unless the unit get's power
> cycled, which isn't often (usually years).

A long time ago, I had to set the date on a  Z3801A.  It's been power cycled 
several times since then without troubles.

So either setting the date is good enough, or there is a battery in there and 
a really old battery is good enough to hold over a short power loss (as 
compared to being on the shelf for months).




-- 
These are my opinions.  I hate spam.



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Re: [time-nuts] Serial-Ethernet

[Keith Loiselle]

The Fury and other Jackson Labs GPSDOs can be put into manual holdover with
the SYNChronization:HOLDover:INITiate command and taken out of holdover
with the SYNChronization:HOLDover:RECovery:INITiate command.

The phase measurement from the sync:tint? query remains valid while in the
manual holdover state, so that this phase data could be used to create a
valid ADEV plot of the oscillator in holdover.

Keith





Keith

On Thu, Mar 17, 2016 at 7:21 AM, Paul  wrote:

> On Thu, Mar 17, 2016 at 10:00 AM, Tom Van Baak  wrote:
>
> > this feature should be in every GPSDO, but I think it's unique to the
> > TBolt.
> >
>
> I was under the impression that SYNChronization:HOLDover:INITiate did this
> on the Fury.
> Of course I'm used to embarrassing misapprehensions.
>
> --
> Paul
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[time-nuts] NIST quantum thermometer

[Mark Sims]

NIST is working on a quantum thermometer.   Apparently the current version is 
not very accurate,  but they are working on it.  If it ever comes to be,  
should be interesting... particularly when paired with their photonic 
thermometers.
http://www.nist.gov/pml/div684/nist-creates-fundamentally-accurate-quantum-thermometer.cfm

  
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Re: [time-nuts] How to run Lady Heather under Windows10

[Ken Winterling]

Neville,

I set up a shortcut to run Lady Heather on my Windows10 system, an old IBM
ThinkPad.  Here is the exact "target" command line I use in the shortcut to
Lady Heather:
"C:\Program Files (x86)\Heather\heather.exe" /4

Be sure to use the quotes exactly as they appear above before "C: and after
.exe".  The /4 specifies COM4 on my system.

If everything on our systems were identical your shortcut target would be:
"C:\Program Files (x86)\Heather\heather.exe" /1

Use Device Manager (right click the Window icon in the lower left corner of
your screen and select Device Manager).  Look under Ports (COM & LPT) to
see what is on your system.

Good luck and keep us posted!

Ken
WA2LBI

On Thu, Mar 17, 2016 at 9:56 AM, David J Taylor  wrote:

> NEville
>
> Thoughts
>
> 1)Get rid of WIN10 ...and instal WIN7 on the new laptop
>
> 2) Are you running a USB to COM port adapter? Could be a WIN 10 driver
> problem
>
> 3) as far as I know Windows in any version wont allow SLASH in a file
> name. I am not familiar with Lady Heather so I do not understand the use
> of "file name" and "send command" in the same sentence in this context?
> IS the file name embedded in the command?
>
> I am so fed up with WIN 10 that I may finally breakdown and go through
> the learning curve on LINUX
>
> Dave
> manu...@artekmanuals.com
> www.ArtekManuals.com
> ==
>
> Dave,
>
> Agreed on (3).
>
> I've put together a page of notes on Win-10 here:
>
>  http://www.satsignal.eu/software/Win-10-notes.html
>
> Yes, there are a few issues, but I've seen nothing major with hardware or
> software.  You're welcome to ask in case I have seen the same issue.
>
> Cheers,
> David
> --
> SatSignal Software - Quality software written to your requirements
> Web: http://www.satsignal.eu
> Email: david-tay...@blueyonder.co.uk
> Twitter: @gm8arv
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Re: [time-nuts] Z3801A EEPROM

[Magnus Danielson]

Joe,

On 03/18/2016 02:33 AM, Joseph Gray wrote:

Referring to this old post:

https://www.febo.com/pipermail/time-nuts/2011-December/061718.html

In particular, this statement:

"but If the RTC in the receiver is not set or its battery has failed,
and the reference year stored in EEPROM is also wrong, the receiver
may select the wrong 20-year window."

Does anyone know where in the EEPROM the reference year is stored and
in what format? I thought that while I have the unit on the workbench,
I might also get it on the current 1024 week cycle. I'd also do the
spare unit I just traded for.

Yes, I'll add a battery pack as well :-)


As I gather it, the Z3801A relies on the GPS receiver board to give the 
time in correct form. Might be some setup it does.


Cheers,
Magnus
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Re: [time-nuts] Z3801A recovering

[John Green]

Joe, I'd be interested in knowing what you find out. My Z3801 is acting a
lot like yours. It is currently locked, but.

On Thu, Mar 17, 2016 at 8:15 AM, Joseph Gray  wrote:

> Dave,
>
> I power cycled it about 20 days ago, which did no good. That is the
> 496 hours holdover time. This time, I did just the survey once
> command. I'll try your suggestion before attacking the hardware. I'm
> currently using Z38xx.exe.
>
> Joe Gray
> W5JG
>
>
> On Thu, Mar 17, 2016 at 4:30 AM, Artek Manuals 
> wrote:
> > Joe
> >
> > I am confused by the fact that it shows the unit has been in HOLDOVER for
> > 496 hours if you did a fresh survey
> >
> > Did you do a SYSTEM:PRESET: and GPS:POS:SURVEY:ONCE commands to initiate
> the
> > new survey or just the survey command or  What software are you
> running?
> >
> > I would power the unit down and let it sit for 24 hours and then do the
> two
> > commands above.
> >
> > What software are you running?
> >
> > Dave
> > NR1DX
> >
> >
> >
> >
> >
> > On 3/16/2016 7:38 PM, Joseph Gray wrote:
> >>
> >> As I mentioned a while back, my trusty Z3801A, which has worked well
> >> for several years, went into holdover some time ago and stayed there.
> >> Until recently, I haven't had time to look into this. About 20 days
> >> ago, I did power cycle it to see if that made a difference. It did
> >> not.
> >>
> >> In the middle of the night, last night (couldn't sleep), I decided to
> >> see what initiating a new survey would do. Since the unit doesn't lock
> >> to as many satellites as my Lucent with the newer Oncore, it took
> >> quite a while for the survey to finish.
> >>
> >> I just got home from work and this is what I am seeing:
> >>
> >> https://dl.dropboxusercontent.com/u/19599147/Z3801A.png
> >>
> >> The good news is that the unit no longer telling me the PPS is
> >> invalid. It looks like it will be another long while before it comes
> >> out of Recovery (assuming the PPS stays locked).
> >>
> >> I'm not the best at interpreting these graphs. At this point, should I
> >> be concerned abouth the spikey nature of the EFC graph, or will things
> >> calm down eventually? I assume that the PPS graph won't show until
> >> Recovery is done?
> >>
> >> If this unit loses PPS lock again, or otherwise acts up, then I would
> >> assume it is a hardware problem, and I'll have to put it on the bench.
> >>
> >> Joe Gray
> >> W5JG
> >> ___
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> >>
> >
> >
> > --
> > Dave
> > manu...@artekmanuals.com
> > www.ArtekManuals.com
> >
> > ---
> > This email has been checked for viruses by Avast antivirus software.
> > https://www.avast.com/antivirus
> >
> >
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