On Mon, 15 Jan 2007 18:56:00 -0600, Didier Juges <[EMAIL PROTECTED]> wrote:
>Well John, I need to think about that one. If you click on the high
>bidder, you do get quite a bit more information than with the old
>system. Even though the information was available, it would have been
>hard to put
In message <[EMAIL PROTECTED]>, Chuck Harris writes:
Chuck, you are entitled to your opinions, but some of your
assumptions indicate that you havn't been in Europe for
any amount of time, so I'll just correct those of of your
mistakes that applies to over here:
>Oh darn! Another toothless regul
From: Marc Bury <[EMAIL PROTECTED]>
Subject: [time-nuts] Re : RoHS crap
Date: Mon, 15 Jan 2007 21:29:52 + (GMT)
Message-ID: <[EMAIL PROTECTED]>
Marc,
> More on the infamous RoHS subject:
>
> -> Most RoHS parts are indeed compatible with your good old tin solder.
>But I know for a fact th
Fellow clock-tickers,
I'm delving into the secrets of my Odetics 325 in an effort to
understand if the GPS receiver can be replaced with something a little more
modern than the Magellan OEM 5000. In the course of this investigation, I have
discovered that the receiver, on one of its por
Just checked an she had a bunch of those that didn't sell. She hasn't relisted
them... interesting.
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
Of Tim Shoppa
Sent: Monday, January 15, 2007 6:58 PM
To: time-nuts@febo.com
Subject: Re: [time-nuts] Bad batch
Hi Gerald,
I don't think you can find much simpler than James Miller's project:
http://www.jrmiller.demon.co.uk/projects/ministd/frqstd.htm
Lots and lots of people have built it. If you do not use a Jupiter
receiver, you will need more dividers (the Jupiter outputs 10 kHz in
addition to the 1
For absolutely minimal expenditure might I suggest Murray Greenman's GPS
disciplined clock:
http://www.qsl.net/zl1bpu/MICRO/GPSCLOCK/index.htm
I can highly recommend the project, which uses a microcontroller to PLL the
VCXO to the 1PPS GPS. Heaps of fun and Murray has provided so much help.
Hi nuts,
Since signing up to Time-nuts some time ago, there has been a lot of discussion
relating to GPS disciplined frequency standards. Infact, the information
is overwhelming but wonderful reading, but I must admit to some extent
fragmented,
but for a reason, mostly replies.
For the past 20 y
The person "corbymite" on eBay might be able to help you:
http://members.ebay.com/ws/eBayISAPI.dll?ViewUserPage&userid=corbymite
I'll have to dig through all my emails, I think I have it somewhere. But at
the very least you can contact him through eBay.
Jason
> Can anyone give me advise with t
I forgot to mention that in our products, we use 100% MIL-SPEC conformal
coating, which seems to slow the growth of tin wiskers to the point of
not being a significant concern (at least from the people knowledgeable
in the process,) and our customers are buying it.
As Chuck pointed out, simply
Can anyone give me advise with the following:
I have a Cesium Frequency Standard FTS 4050, that I powered up after it had
been stored for years.
It seams to work, but:
The beam current is way too high.
With monitor select on 3 (= beam current): the output on the meter is >5V.
The lock is on an
Michael Sokolov wrote:
> Hello again,
>
> Thanks to everyone who has replied to my query!
>
> I have a few additional questions though:
>
> 1. What about the tin whiskers? Will they be eliminated by using SnPb
> solder, or will they always remain a potential problem when one is
> forced to use
Poul-Henning Kamp wrote:
> In message <[EMAIL PROTECTED]>, Chuck Harris writes:
>
> Sorry, incoming rant:
>
>> Especially when you consider the amount of lead that will enter
>> the environment when a single automotive battery (which are not
>> subject to RoHS, by the way) is improperly dumped.
>
Hi Allan:
I have some Austron Manuals on a CD-ROM, see:
http://www.pacificsites.com/~brooke/A2100F.shtml#Man
Although not mentioned on the web page also on the CD are some HP
Signature analyzer manuals since signatures are supported in the 2100
series Loran-C receivers.
Have Fun,
Brooke Clarke
Hi Jason:
1)The oscillator needs to go into the VCXO In jack and then if you
look at U1-2 (same as U2-1) you should see a zero to +5 square wave at
the frequency of you oscillator.
2)The GPS 1 PPS goes into GPS In and of you look at U3-15 you
should see a zero to +5 pulse once per se
Hello,
I am seeking manuals that will enable me to use my frequency standard
gear, would someone please see what you what you have and I will be
willing to pay for duplication if you need to keep the originals.
thanks,
Allan Bart
WA2RZQ
___
time-n
Yep, I leave the OCXO always on since I finished that circuit.
The OCXO outputs a 6V reference, from there I go to the 10K pot, which goes
to the EFC and ground/DAC (I have it wired so I can use a jumper to ground
when not hooked to the DAC. The 5 MHz target is achieved around like
3.2-3.3V, so it
Does anyone have information on the Symmetricom GPS
1100 / Telecom Solutions CellSync 1100 T1 GPS timing
receiver such as operating instructions, command
syntax, and specs?
I couldn't find anything on it using a web search.
I've seen several on the market in the past few years.
The unit was bui
"Mark Amos" <[EMAIL PROTECTED]> wrote:
> FYI, the e-bay seller was Alexandra Carter.
I have bought other stuff from this seller (mostly old radio components
and tubes, although I think I got two command sets early last year) and
had no problem.
Their position as apparent special-internal-use-only
First, take your OXCO, heat it up, and use just a pot for the 0 to 6
volt control range. Find out what control voltage is needed for the
proper frequency. The DAC can't achieve lock if it can't reach that
voltage.
If that's all OK - the DAC output is within range - then find out what
AC input volt
Well John, I need to think about that one. If you click on the high
bidder, you do get quite a bit more information than with the old
system. Even though the information was available, it would have been
hard to put it together. With this new system, they give it in summary
form, so in that res
For those interested, google "tin wiskers" and look up the NASA web site
that has lots of good pictures. It is scary to think people actually
build equipment with that stuff.
Needless to say, in my business (military electronics), nobody wants to
hear about lead free solder. The prime contracto
Jason, I tried to reply to your e-mail but got a delivery error...
Sorry if these are obvious, but you didn't say - so I'm asking.
Did the GPSDO ever work (i.e. was it working and then stopped, or did it never
work?)
Have you checked out the oscillator divider with a frequency counter to make
That sounds like an awful lot of drift, absolutely inconsistent with a
crystal oscillator of any kind.
Either this OCXO is really sick, and just happen to end up at the right
frequency by accident, or it is an OCO (Oven Controlled Oscillator :-)
Didier KO4BB
Jeroen Bastemeijer wrote:
> Dear Ri
Hello again,
Thanks to everyone who has replied to my query!
I have a few additional questions though:
1. What about the tin whiskers? Will they be eliminated by using SnPb
solder, or will they always remain a potential problem when one is
forced to use a Pb-free part?
2. Several people have r
FYI, the e-bay seller was Alexandra Carter. I thought maybe it was just mine,
but another
buyer recently received his and same problem. It heats up just fine (I don't
have a way to
actually measure the temperature inside, the outer case feels like it gets
about as warm as
a working unit.
You guys might have noticed a little bit I posted in another topic, but I
figured it's time I started my own now that I have the setup all hooked back
up and running again.
I'm having trouble getting the controller to lock the OCXO. The phase
reading only goes between about 10 - 155... Nowhere nea
More on the infamous RoHS subject:
-> Most RoHS parts are indeed compatible with your good old tin solder.
But I know for a fact that some RoHS BGA chips (surface mount Ball Grid
Array) will not be correctly mounted with a standard Pb process; the reason is
that the ball under the BGA package
RoHS = yet another wacky EU Directive. Why did we ever join this nonsense??
Rob K - (in UK)
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Michael Sokolov
Sent: 15 January 2007 18:52
To: time-nuts@febo.com
Subject: [time-nuts] OT: RoHS crap
Hello time-
Good point, Brian -- I'd forgotten about the $200 threshold in the new
rules. That accounts for the presence of bidder IDs in the auction Bruce
linked to.
-- john, KE5FX
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
Behalf Of [EMAIL PROTECTED]
I know this is OT, b
I know this is OT, but for E-ba* here in the US, if the bid price goes above
$200 the bidder's IDs are not listed. It's similar to the private auction you
speak of.
It's a new rule they have.
So we have no idea if we are bidding against a fellow time-nut if the bid price
goes over $200 USD. T
eBay has a zillion different servers; they aren't all updated at once for
obvious reasons. Also, their changes tend to be rolled in incrementally as
new listings appear.
My understanding is that within a week or two, unless eBay management comes
to their senses, the list of bidders in all auction
Huh? I just checked one auction, just to see if this was accurate, and
none of the bidder ID's were hidden.
Link to see for yourselves:
http://offer.ebay.com/ws/eBayISAPI.dll?ViewBids&item=130068582446
Now, it IS possible that you may have seen a 'Private' auction, in
w
In message <[EMAIL PROTECTED]>, Chuck Harris writes:
Sorry, incoming rant:
>Especially when you consider the amount of lead that will enter
>the environment when a single automotive battery (which are not
>subject to RoHS, by the way) is improperly dumped.
Automotive batteries are subject to dif
Good luck extending that courtesy to your fellow time-nuts in the future:
eBay has anonymized all bids as of this past week.
The really bad news is that now, all auctions are going to play the MIDI
version of "Shiller's Ode."
-- john, KE5FX
-Original Message-
From: [EMAIL PROTECTED] [mai
It goes back to something I noticed at an early age, albeit not early
enough: if you're a young kid just entering university and you want to wield
any *real* power in the world, you should become an environmental scientist,
not a politician or a lawyer or a CEO. There is essentially no burden of
p
I almost bid on that too, but didn't get a chance to login till it was
already over... I don't need to be spending any more money right now anyhow,
so it's probably better that I missed out.
If I knew all your eBay IDs, more than likely I would not bid on an item if
one of you guys already had the
Hi Chuck,
from a manufacturer's perspective:
1) Test & MEasurement electronics are exempt at least until 2009, maybe
until 2011 or longer. Good for us, we can keep using the good old Pb.
2) Consumer products reliability just took a steep dive due to tin
whiskers causing shorts in t
Especially when you consider the amount of lead that will enter
the environment when a single automotive battery (which are not
subject to RoHS, by the way) is improperly dumped. Then consider
how much tin/lead soldered electronics would be needed to release
the same amount of lead.
-Chuck Harris
Part of the law of "unintended consequences"!
Sometimes it's better to leave things alone.
Daun
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
Of Chuck Harris
Sent: Monday, January 15, 2007 2:24 PM
To: Discussion of precise time and frequency measurement
Hi Michael,
RoHS parts usually solder nicely with normal 63/37 solder. They will
dilute the solder alloy slightly, but that usually is of no concern.
The big problem with RoHS parts is they don't age well on the shelf.
I have found that over time, they will not take solder as quickly as
when the
There are no problems using Pb-free parts, or obtaining them, either, in my
experience. Most of the manufacturers and distributors have done a good job
working the kinks out of the supply chain. (DigiKey was unusable for a few
months, but they seem to have recovered nicely.)
Lead-free parts are
Hello time-nuts,
Sorry for the off-topic post, but reading my mail this morning I've seen
a few messages go by on this list about bad solder joints due to the
RoHS stupidity, and I have a question about that.
My interest in the matter is from the perspective of a hobbyist hardware
builder -- of t
IMHO, if GPS doesn't work in that location, I'm not sure that Galileo would
work any better.
Rob K
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Jason Rabel
Sent: 15 January 2007 17:42
To: 'Discussion of precise time and frequency measurement'
Subject:
> Hi Fellow Nuts,
>
> Does anyone have any information on the Austron 2202 Rb reference?
Ha, so YOU are the one who bought it! ;-) I saw it on eBay too. I even placed a
(sniper-) bid but it was refused because of my location. Too bad because it was
quite a bit higher than the final amount.
> A
I created a .xls with approximately 100 Austron plug in card part
numbers and there descriptions. If interested contact me
at [EMAIL PROTECTED] and I will email it to you. I found this info on a
telco used equipment distributors site. Yes, I ripped it off.
Had, K7MLR
A well regulated Mi
You illustrate some good points...
What about places where GPS doesn't work so great for some people? Then they
might be willing to pay a subscription for a service that does benefit them
better. Also, like you mentioned, if they come out with a 'lifetime'
subscription, then maybe some people will
Got Qwoob?
*** REPLY SEPARATOR ***
On 15-Jan-07 at 17:17 Poul-Henning Kamp wrote:
>In message <[EMAIL PROTECTED]>, "Jason Rabel"
>writes:
>
>>XM & Sirrius radio relied on a subscriber model, that nobody thought would
>>work since local FM stations were free to listen to. I know
And if I find any, in equipment that I buy, they get touched up with
regular tin-lead-silver solder! I'm not about to have any test gear I own
subject to failure, based on the silly whim of some offshore agency.
*** REPLY SEPARATOR ***
On 15-Jan-07 at 12:04 Chuck Harri
In message <[EMAIL PROTECTED]>, "Jason Rabel" writes:
>XM & Sirrius radio relied on a subscriber model, that nobody thought would
>work since local FM stations were free to listen to. I know this isn't an
>apples-to-apples comparison, but people thought that those satellite
>subscription services
No I'm not sure, but 164 ppm sounds high. My anecdotal
memory may be faulty.
In any event, a 10811 with a bad fuse is obvious:
it draws no oven power and the case never gets warm.
Rick
Jeroen Bastemeijer wrote:
> Dear Rick,
>
> Are you sure the 500Hz is too much for a cold oven? I checked my 5
XM & Sirrius radio relied on a subscriber model, that nobody thought would
work since local FM stations were free to listen to. I know this isn't an
apples-to-apples comparison, but people thought that those satellite
subscription services would bomb too.
Also, if Galileo was under NATO or some "j
You will be seeing many more suspicious and bad solder joints thanks
to RoHS and the adoption of lead free solders. Even really good RoHS
solder joints look bad.
-Chuck Harris
Jason Rabel wrote:
> Bruce,
>
> Inspiring story! I have seen some nasty cold-solder joints too in commercial
> equipmen
Jason,
Please contact me directly (peterawson"AT"earthlink.net) & I'll tell you how
I got my Brooks Shera GPS PLL
to work.
Regards,
Pete
___
time-nuts mailing list
time-nuts@febo.com
https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
Hi Fellow Nuts,
Does anyone have any information on the Austron 2202 Rb reference?
A quick Google finds little of value and it is not listed in the
Austron handbook. I have checked the archives here and looked at the
Austron patent but really would like to find a manual. Ok, don't
everybody l
Bruce,
Inspiring story! I have seen some nasty cold-solder joints too in commercial
equipment, makes you wonder how it ever functioned in the first place.
On a similar note, hopefully I'll have a happy ending too with my
Brooks-Shera GPS controller. Right now I can not get it to lock, despite
man
From: "Poul-Henning Kamp" <[EMAIL PROTECTED]>
Subject: Re: [time-nuts] Giove A has become "official" now.
Date: Mon, 15 Jan 2007 15:53:28 +
Message-ID: <[EMAIL PROTECTED]>
Poul-Henning,
> The most recent, semi-reliably information with actual details I
> have been able to find is here:
>
>
In message <[EMAIL PROTECTED]>, Magnus Danielson wri
tes:
The most recent, semi-reliably information with actual details I
have been able to find is here:
http://www.helios-tech.co.uk/ERNP/documents.htm
In particular the presentations are interesting.
--
Poul-Henning Kamp | UNIX
From: [EMAIL PROTECTED]
Subject: Re: [time-nuts] Giove A has become "official" now.
Date: Mon, 15 Jan 2007 16:19:55 +0100 (CET)
Message-ID: <[EMAIL PROTECTED]>
Björn,
> On Mon, January 15, 2007 15:59, Magnus Danielson said:
>
> >> >I have heard that the proposed fee was 1 EUR, but I don't know t
Dear Rick,
Are you sure the 500Hz is too much for a cold oven? I checked my 5345A
(recently acquired) counter, which was switched off for some time.
Measuring the frequency directly after applying power and switching on,
resulted in about 1640 Hz frequency offset. After warm up, the error is
b
On Mon, January 15, 2007 15:59, Magnus Danielson said:
>> >I have heard that the proposed fee was 1 EUR, but I don't know the
>> current
>> >idea about it.
>>
>> The 1EUR per receiver fee is not decided and if it was, it would be
>> pointless, because there is no way to enforce and it would never
In message <[EMAIL PROTECTED]>, Magnus Danielson wr
ites:
>> The 1EUR per receiver fee is not decided and if it was, it would be
>> pointless, because there is no way to enforce and it would never
>> amount to enough money to matter anyway.
>
>I agree it would be rather pointless, but at least for
From: "Poul-Henning Kamp" <[EMAIL PROTECTED]>
Subject: Re: [time-nuts] Giove A has become "official" now.
Date: Mon, 15 Jan 2007 14:46:21 +
Message-ID: <[EMAIL PROTECTED]>
Poul-Henning,
> In message <[EMAIL PROTECTED]>, Magnus Danielson wri
> tes:
>
> >I have heard that the proposed fee was
In message <[EMAIL PROTECTED]>, Magnus Danielson wri
tes:
>I have heard that the proposed fee was 1 EUR, but I don't know the current
>idea about it.
The 1EUR per receiver fee is not decided and if it was, it would be
pointless, because there is no way to enforce and it would never
amount to enou
In message <[EMAIL PROTECTED]>, bg@
lysator.liu.se writes:
>On Mon, January 15, 2007 11:41, Poul-Henning Kamp said:
>Many surveyors use GPS and GLONASS L1+L2 now. Are there there even ONE
>major manufacturer of dual freq receivers that have not announced support
>for the upcoming Galileo signals.
In message <[EMAIL PROTECTED]>, bg@
lysator.liu.se writes:
>Why do you think Galileo will not be free for the user of the open service?
It will, if the satellites ever got up there.
But the subscription service is what is expected to actually pay
for Galileo, and that business model strongly hin
From: [EMAIL PROTECTED]
Subject: Re: [time-nuts] Giove A has become "official" now.
Date: Mon, 15 Jan 2007 14:59:16 +0100 (CET)
Message-ID: <[EMAIL PROTECTED]>
> Today GNSS is woven very deep into national infrastructure - CDMA radio
> systems, power generation, network time, etc, etc. Had the US
On Mon, January 15, 2007 11:41, Poul-Henning Kamp said:
> Surveyors can't be forced to buy this service, they're perfectly happy
> with GPS L1 + L2 and galileos enhanced services don't give them anything
> they will pay for.
Many surveyors use GPS and GLONASS L1+L2 now. Are there there even ONE
m
Today GNSS is woven very deep into national infrastructure - CDMA radio
systems, power generation, network time, etc, etc. Had the US elevated GPS
from a US DoD system to a "NATO controlled" system in the late nineties
that might have defused the drive from one or a few of the larger NATO/EU
countr
In message , "Rob Kimberley" writes:
>I'm still not convinced about the long term viability of Galileo especially
>against the "free" GPS.
I'm convinced that there is no short or long term viability for the proposed
economical model.
The only users who can be forced to subscribe to the "enhanced
I did pass on your original email to an old colleague of mine whose team was
responsible for the design of the TS2100, but had no answer yet. Will chase
it up.
Rob Kimberley
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Jason Rabel
Sent: 15 January 2007
I'm still not convinced about the long term viability of Galileo especially
against the "free" GPS.
:-)
Rob Kimberley
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Poul-Henning Kamp
Sent: 14 January 2007 22:38
To: time-nuts@febo.com
Subject: [time-nut
Not that long ago, I mentioned that my Trak Systems 8820 clock had
stopped tracking the GPS birds. Initially, I thought it was receiver failure.
However, at the time, I also had antenna issues (limited to indoor-only, albeit
high gain).
I just finished putting in a normal outdoo
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