Re: [time-nuts] Jackson-Labs, any info?

2017-07-05 Thread Szeker K. 
Hi Achim,

I belive, there are full in busines...
http://www.jackson-labs.com/index.php/products/gps_ocxo

Greetings, Karl

2017-07-05 9:28 GMT+02:00 Achim Vollhardt :

> Fellow Time-Nutters,
>
> I am trying to get in contact with Jackson Labs but without any success
> for 3 weeks now.. does anybody has informtion if they are still in
> business?
>
> Best regards,
> Achim
> ___
> time-nuts mailing list -- time-nuts@febo.com
> To unsubscribe, go to https://www.febo.com/cgi-bin/
> mailman/listinfo/time-nuts
> and follow the instructions there.
>
___
time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.

Re: [time-nuts] GPS? Antenna

2016-09-06 Thread Szeker K. 
Yes its H-S model, and it must be a GPS antenna...
http://www.cafr.ebay.ca/itm/Ericsson-KRE-1012082-1-GPS-Antenna-26dBi-For-HUBER-SUHNER-84097323-/182012930579?hash=item2a60d0ea13:g:MAMAAOSwZd1Vdn6-
Regards
Karl

2016-09-06 5:12 GMT+02:00 Chris Waldrup :

> It's a Huber Suhner.
>
> Chris
>
> > On Sep 5, 2016, at 21:26, Glenn Little WB4UIV <
> glennmaill...@bellsouth.net> wrote:
> >
> > Pete,
> >
> > I do not know if I can send a picture to the mailing list.
> >
> > I am sending this to you and the list.
> >
> > The antenna is 4 inches from tip of cone to bottom of type-N connector.
> > It is 2 5/8" in diameter.
> >
> > Thanks
> > Glenn
> >
> >
> >
> >> On 9/5/2016 8:25 PM, Pete Lancashire wrote:
> >> Nemko is the Norwegian "UL", my guess is the numbers are the
> >> test/certification numbers. A picture would help
> >>
> >> -pete
> >>
> >> On Mon, Sep 5, 2016 at 5:14 PM, Glenn Little WB4UIV
> >> >
> wrote:
> >>
> >>At the last hamfest that I attended, I bought an antenna that looks
> >>like a GPS antenna.
> >>The price was right.
> >>This is a Nemko Article number: 84097323, Type number 1315.17.0018.
> >>It has a manufacturing date of 09/2012.
> >>Can anyone tell me if this is in fact a GPS antenna and what voltage
> >>wold be required.
> >>I would suspect that it would be either 5VDC or 3.3 VDC based on the
> >>date.
> >>Any help appreciated.
> >>
> >>Thanks
> >>73
> >>Glenn
> >>WB4UIV
> >>
> >>--
> >>
> ---
> >>Glenn LittleARRL Technical Specialist   QCWA  LM
> 28417
> >>Amateur Callsign:  WB4UIVwb4...@arrl.net
> >>AMSAT LM 2178
> >>QTH:  Goose Creek, SC USA (EM92xx)  USSVI LM   NRA LM   SBE ARRL TAPR
> >>"It is not the class of license that the Amateur holds but the class
> >>of the Amateur that holds the license"
> >>
> ---
> >>___
> >>time-nuts mailing list -- time-nuts@febo.com  time-nuts@febo.com>
> >>To unsubscribe, go to
> >>https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
> >>
> >>and follow the instructions there.
> >
> > --
> > ---
> > Glenn LittleARRL Technical Specialist   QCWA  LM 28417
> > Amateur Callsign:  WB4UIVwb4...@arrl.netAMSAT LM 2178
> > QTH:  Goose Creek, SC USA (EM92xx)  USSVI LM   NRA LM   SBE ARRL TAPR
> > "It is not the class of license that the Amateur holds but the class
> > of the Amateur that holds the license"
> > 
> ---
> > 
> > ___
> > time-nuts mailing list -- time-nuts@febo.com
> > To unsubscribe, go to https://www.febo.com/cgi-bin/
> mailman/listinfo/time-nuts
> > and follow the instructions there.
> ___
> time-nuts mailing list -- time-nuts@febo.com
> To unsubscribe, go to https://www.febo.com/cgi-bin/
> mailman/listinfo/time-nuts
> and follow the instructions there.
>
___
time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.

Re: [time-nuts] How to get unknown frequency quartz crystals oscillating

2016-06-04 Thread Szeker K. 
Mike,

XTALs does work in air, or better: dry gases (i.e. nitrogen) too, but OK;
quality exemplares are (for better, spurious free, oscillating) in vacuum...

Karl


Virenfrei.
www.avast.com

<#DDB4FAA8-2DD7-40BB-A1B8-4E2AA1F9FDF2>

2016-06-04 19:41 GMT+02:00 Mike Cook :

> Thanks all for your advice, hints, tips and links. Lots to read , do and
> some hardware to check.  I don’t have a frequency generator so I’ll have to
> go another route.
>
> Oh. One last Q. Has anyone tried repairing the « spring » wire electric
> connections on large quartz plates. In one large unit I have they had
> corroded and dropped the plate, luckily no damage.  I have done one, but I
> have no Idea what the original wire composition was so have certainly
> induced some stray capacitance/resistance. It is possible that it was a
> filter rather than a frequency source as it was not in a vacuum.
>
> Have a good one.
>
> > Le 4 juin 2016 à 18:49, Bernd Neubig  a écrit :
> >
> >
> > Tim Shoppa wrote:
> >> The Pierce logic-gate-biased-active oscillator is pretty reliable to
> start and will oscillate somewhere with most crystals from kHz to MHz.
> >> As you found out, it will often come up on one of many overtones.
> >> To reduce chance of coming at an overtone, a series resistor from logic
> gate output to the crystal is often enough. If not, a RC low-pass will cut
> down even further (although of course adding phase shift.)
> >
> > This is certainly the easiest and fastest way for a go/no-go test and to
> find the approximate resonance frequency.
> > In the attached circuit diagram make CX1 and CX2 about 10 pF and RGK
> several MegOhms.
> > The inverter gate should be preferably an unbuffered HCMOS or other fast
> inverter.
> > For crystals in the MHz range you can replace RV by a short, for kHz
> crystals make it a few kOhms. If testing small watch crystals @ 32768 kHz
> or around, RV should be 100 kOhm at least. RV reduces the crystal drive
> level (RF current) to an acceptable level to avoid overloading or even
> damaging of the crystal. For low frequency crystals the RV-CX2 lowpass also
> avoids start-up at the overtone.
> > It is recommended to add a second inverter gate at the output to isolate
> your oscilloscope or counter input from the oscillator stage. Add some >330
> ohm in series to the output of the 2nd inverter, if you connect a coaxial
> cable. Then terminate the coax at the oscilloscope or frequency counter end
> with 50 Ohms, so the square wave form will be roughly maintained.
> >
> > In this circuit the crystal will not operate at its series resonance,
> but at a load resonance with load capacitance of something between 8 pF and
> 10 pF (depending on the inverter input and output capacitance plus the
> stray capacitances of your test fixture).
> > If you want to operate the oscillator at a (low) overtone, such as 3rd
> (or maybe 5th), you must add a series combination of 10 nF plus an inductor
> in parallel to CX2. The 10 nF is to avoid DC short-circuiting of the
> output. The inductor together with CX2 must have a resonance frequency mid
> between fundamental mode and 3rd overtone (not at one of them). So the
> tuned circuit acts like a capacitor at the 3rd OT and is inductive at
> fundamental mode (thus the phase condition for oscillation is not fulfilled
> at the fundamental mode)
> > Have fun
> >
> > Bernd
> > DK1AG
> > ___
> > time-nuts mailing list -- time-nuts@febo.com
> > To unsubscribe, go to
> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
> > and follow the instructions there.
>
> "The power of accurate observation is commonly called cynicism by those
> who have not got it. »
> George Bernard Shaw
>
> ___
> time-nuts mailing list -- time-nuts@febo.com
> To unsubscribe, go to
> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
> and follow the instructions there.
>
___
time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.

Re: [time-nuts] Fluke 7260a manual

2014-11-20 Thread Szeker K. 
Yea, there are tragical prices_btw, I fand some (a little bit better
priced) on ebay...
Greetings, Karl


2014-11-19 20:41 GMT+01:00 Brian Lloyd br...@lloyd.aero:

 On Wednesday, November 19, 2014, Szeker K. szeke...@gmail.com wrote:

  Hi Brian,
  Tucker has it, but for $75,-
  http://www.etestmanuals.com/Search.aspx?Mfg=FLUPage=4
  K.


 Thank you. I have been able to find the manual but, as you indicated, only
 at a price exceeding what I paid for the unit.

 Still hoping to find a scanned copy.



 --
 Brian Lloyd
 Lloyd Aviation
 706 Flightline Drive
 Spring Branch, TX 78070
 br...@lloyd.aero
 +1.210.802-8FLY (1.210.802-8359)
 ___
 time-nuts mailing list -- time-nuts@febo.com
 To unsubscribe, go to
 https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
 and follow the instructions there.

___
time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.

Re: [time-nuts] Fluke 7260a manual

2014-11-19 Thread Szeker K. 
Hi Brian,
Tucker has it, but for $75,-
http://www.etestmanuals.com/Search.aspx?Mfg=FLUPage=4
K.

2014-11-19 15:56 GMT+01:00 Brian Lloyd br...@lloyd.aero:

 Does anyone have a Fluke 7260a manual? I am able to use mine pretty well
 but would like to better understand the interval measuring functions.

 --
 Brian Lloyd
 Lloyd Aviation
 706 Flightline Drive
 Spring Branch, TX 78070
 br...@lloyd.aero
 +1.210.802-8FLY (1.210.802-8359)
 ___
 time-nuts mailing list -- time-nuts@febo.com
 To unsubscribe, go to
 https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
 and follow the instructions there.

___
time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.