Re: [time-nuts] UCCM arrived

[David J Taylor]

Hello to all,

I connected the unit to a 11m of H-155 cable(assumed 4.79dB loss "worst 
case" at 1.5GHz), thrown the GPS antenna on the balcony horizontally and 
this is what I got:

[]
- Given the attenuation (less than 5 dB) do I really need to change the 
cable for something better?

[]
Giuseppe Marullo
IW2JWW - JN45RQ
=

Giuseppe,

Most GPS antennas have an LNA built-in, making cable loss less significant. 
Doesn't your antenna have that?


73,
David GM8ARV
--
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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[time-nuts] Trimble 65256 OCXO

[Dave Brown]

This 10 MHz unit has a 5th pin that I can't find any documentation about. 
There have been posts in the past that have also indicated its use is 
unknown.  Looking at the base, the four connections in the corners are known 
quantities. (ground, EFC, 10 MHz out and + supply) No. 5 is midway along one 
side.
I thought it may be a reference supply for the EFC pin- with a 12.03 volt 
supply the unknown pin measures at 2.803 volts-which is usefully above the 
required EFC voltage ( ~2.4 volts) to bring it on frequency.

But does anyone have some hard data on this 'unknown' pin?
DaveB, NZ



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Re: [time-nuts] UCCM arrived

[Chris Albertson]

Here is my take on this:  Why worry about a few dB of attenuation in the
cable when you have a 100% blockage problem for half the sky?

With GPS receivers, cable attenuation (within reason) is not important.
What matters is if you can see the satellites or not.  It is more of a
binary on/off kind of thing.   The data is digital, you either get the bits
or not.

So, by my above rule you only need to upgrade the cable if cable
attenuation is such that the signal is close to the receivers sensitivity.
  Even then you can usually find a higher gain antenna.   At some point
after maybe 50 meters of cable you might need to consider low loss cable

Nothing in the setup is more important that having an unobstructed view of
the sky

On Sat, Nov 26, 2016 at 6:18 PM, Bob Camp  wrote:

> Hi
>
> For a long term installation, an antenna location that will “see” more
> sat’s is a really good idea.
>
> Bob
>
> > On Nov 26, 2016, at 8:55 PM, Giuseppe Marullo 
> wrote:
> >
> > Hello to all,
> >
> > I connected the unit to a 11m of H-155 cable(assumed 4.79dB loss "worst
> case" at 1.5GHz), thrown the GPS antenna on the balcony horizontally and
> this is what I got:
> >
> > UCCM-P >SYSTem:STATus?
> >
> > 
> ---
> > 57964-80 serial number  87896988 firmware ver  2.0.1.6-01 LINK
>   mode
> > 
> ---
> > Reference Status __   Reference Outputs
> ___
> > XX Ref 8KHz 0: [Unusable]
> > XX Ref 8KHz 1: [LOS]  TFOM 2FFOM
>   0
> > XX Ref 8KHz 2: [LOS]  UCCM A Status[ACTIVE]
> > XX Ref 8KHz 3: [LOS]
> > >> GPS: [phase:-1.2E-08]
> > ACQUISITION ...[GPS
> 1PPS Valid]
> > Tracking: 4    Not Tracking: 6    Time
> 
> > PRN  El  Az  C/N   PRN  El  AzGPS 23:42:46 26 Nov
> 2016
> > 24  45 139   4325  57 286
> >  6  24  62   3819  11  42ANT DLY  -1 ns
> >  2  30 101   4632  37 279Position
> 
> > 29  30 206   4112  70  37MODE Hold
> >14  26 309
> >31   8 309LAT  N 45:40:29.276
> >  LON  E 9:26:51.177
> >  HGT +320.96 m (MSL)
> >
> >
> >
> >
> > ELEV MASK  5 deg
> > 
> ---
> >
> > Command complete
> > UCCM-P >
> >
> >
> > Seems to work (? I understand this from GPS phase and FFOM 0, not sure
> about the hold position status) I have somewhat stable 10MHz output,
> tomorrow I will use a mast for the antenna to get it higher slightly above
> the roof, (vertically this time!).
> >
> > - I got the software from the seller but complains about some ancient
> OCX stuff don't want to mess with ActiveX anymore, hopefully Lady Heater
> will support it soon.
> >
> > - Given the attenuation (less than 5 dB) do I really need to change the
> cable for something better?
> >
> > Leds are Yellow Activity solid, red unnamed blinking fast,  Red 1PPS
> blinks once a second and DC green is solid.
> >
> > Anything else special to check?
> >
> >
> > Giuseppe Marullo
> >
> > IW2JWW - JN45RQ
> >
> >
> > PS: the other clock (qrp-labs) is way behind schedule, but hopefully
> will arrive soon
> >
> >
> > `
> >
> >
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> mailman/listinfo/time-nuts
> > and follow the instructions there.
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>



-- 

Chris Albertson
Redondo Beach, California
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Re: [time-nuts] Oscilloquartz Star-4 GPSDO (was: Thermal impact on OCXO)

[Didier Juges]

Re: Manual uploads to my site:

I have limited internet access for another week. Uploads will be processed the 
week of December 5th.

Didier KO4BB


On November 19, 2016 7:05:52 PM GMT+01:00, Mark Sims  wrote:
>There was a copy uploaded to EEVBLOG.   I uploaded it  and another one
>that Atilla found to ko4bb.com  I don't know if they are out of
>quarantine yet.
>
>The device does not provide any PPS/OSC info to plot (only a 0.03C res
>temperature reading).   You can set the PLL time constant,  satellite
>elevation mask,  enter manual holdover.It does track SBAS
>satellites.  It also sees sat PRN 4,  which is not-active.
>
>The BG7TBL Star-4 GPSDO does not make the management interface
>available on the RS-232 connector.  I wired an external RS-232
>converter to the management port (he breaks out the 26-pin Star-4
>connector to pads).  I will probably re-wire his RS-232 signals (which
>are tapped off an internal Ublox serial interface) to the management
>port and get rid of my kludge.  His output normally sends out NMEA
>data, but once you talk to the management port, it switches to Ublox
>binary data.  Sending commands to the Ublox does not appear to do
>anything.  The BG7TBL device uses the ATDC version of the Star-4 which
>is the highest spec'd version.
>
>I may also bring out the Star-4 TOD (time of day) signal (which is a
>4800 BPS NMEA port) to the connector so NTP has something to get time
>messages from.
>
>---
>
>> Are Oscilloquartz's Star-4 commands described somewhere? I can't find
>them in the wild...
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-- 
Sent from my Moto-X wireless tracker while I do other things.
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Re: [time-nuts] UCCM arrived

[Bob Camp]

Hi

For a long term installation, an antenna location that will “see” more sat’s is 
a really good idea.

Bob

> On Nov 26, 2016, at 8:55 PM, Giuseppe Marullo  wrote:
> 
> Hello to all,
> 
> I connected the unit to a 11m of H-155 cable(assumed 4.79dB loss "worst case" 
> at 1.5GHz), thrown the GPS antenna on the balcony horizontally and this is 
> what I got:
> 
> UCCM-P >SYSTem:STATus?
> 
> ---
> 57964-80 serial number  87896988 firmware ver  2.0.1.6-01 LINKmode
> ---
> Reference Status __   Reference Outputs 
> ___
> XX Ref 8KHz 0: [Unusable]
> XX Ref 8KHz 1: [LOS]  TFOM 2FFOM  0
> XX Ref 8KHz 2: [LOS]  UCCM A Status[ACTIVE]
> XX Ref 8KHz 3: [LOS]
> >> GPS: [phase:-1.2E-08]
> ACQUISITION ...[GPS 1PPS 
> Valid]
> Tracking: 4    Not Tracking: 6    Time 
> 
> PRN  El  Az  C/N   PRN  El  AzGPS 23:42:46 26 Nov 2016
> 24  45 139   4325  57 286
>  6  24  62   3819  11  42ANT DLY  -1 ns
>  2  30 101   4632  37 279Position 
> 29  30 206   4112  70  37MODE Hold
>14  26 309
>31   8 309LAT  N 45:40:29.276
>  LON  E 9:26:51.177
>  HGT +320.96 m (MSL)
> 
> 
> 
> 
> ELEV MASK  5 deg
> ---
> 
> Command complete
> UCCM-P >
> 
> 
> Seems to work (? I understand this from GPS phase and FFOM 0, not sure about 
> the hold position status) I have somewhat stable 10MHz output, tomorrow I 
> will use a mast for the antenna to get it higher slightly above the roof, 
> (vertically this time!).
> 
> - I got the software from the seller but complains about some ancient OCX 
> stuff don't want to mess with ActiveX anymore, hopefully Lady Heater will 
> support it soon.
> 
> - Given the attenuation (less than 5 dB) do I really need to change the cable 
> for something better?
> 
> Leds are Yellow Activity solid, red unnamed blinking fast,  Red 1PPS blinks 
> once a second and DC green is solid.
> 
> Anything else special to check?
> 
> 
> Giuseppe Marullo
> 
> IW2JWW - JN45RQ
> 
> 
> PS: the other clock (qrp-labs) is way behind schedule, but hopefully will 
> arrive soon
> 
> 
> `
> 
> 
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[time-nuts] UCCM arrived

[Giuseppe Marullo]

Hello to all,

I connected the unit to a 11m of H-155 cable(assumed 4.79dB loss "worst 
case" at 1.5GHz), thrown the GPS antenna on the balcony horizontally and 
this is what I got:


UCCM-P >SYSTem:STATus?

---
57964-80 serial number  87896988 firmware ver  2.0.1.6-01 
LINKmode

---
Reference Status __   Reference Outputs 
___

XX Ref 8KHz 0: [Unusable]
XX Ref 8KHz 1: [LOS]  TFOM 2FFOM  0
XX Ref 8KHz 2: [LOS]  UCCM A Status[ACTIVE]
XX Ref 8KHz 3: [LOS]
>> GPS: [phase:-1.2E-08]
ACQUISITION ...[GPS 1PPS 
Valid]
Tracking: 4    Not Tracking: 6    Time 


PRN  El  Az  C/N   PRN  El  AzGPS 23:42:46 26 Nov 2016
 24  45 139   4325  57 286
  6  24  62   3819  11  42ANT DLY  -1 ns
  2  30 101   4632  37 279Position 


 29  30 206   4112  70  37MODE Hold
14  26 309
31   8 309LAT  N 45:40:29.276
  LON  E 9:26:51.177
  HGT +320.96 m (MSL)




ELEV MASK  5 deg
---

Command complete
UCCM-P >


Seems to work (? I understand this from GPS phase and FFOM 0, not sure 
about the hold position status) I have somewhat stable 10MHz output, 
tomorrow I will use a mast for the antenna to get it higher slightly 
above the roof, (vertically this time!).


- I got the software from the seller but complains about some ancient 
OCX stuff don't want to mess with ActiveX anymore, hopefully Lady Heater 
will support it soon.


- Given the attenuation (less than 5 dB) do I really need to change the 
cable for something better?


Leds are Yellow Activity solid, red unnamed blinking fast,  Red 1PPS 
blinks once a second and DC green is solid.


Anything else special to check?


Giuseppe Marullo

IW2JWW - JN45RQ


PS: the other clock (qrp-labs) is way behind schedule, but hopefully 
will arrive soon



`


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Re: [time-nuts] Vintage Quartz Crystal Manufacturing

[Bob Camp]

Hi

The CR-24/U is a *very* unusual crystal package. They had a tough time
getting that one to work.

Bob

> On Nov 26, 2016, at 4:58 PM, Brooke Clarke  wrote:
> 
> Hi Adrisn:
> 
> The BC-611 Walkie-Talkie is a crystal controlled 2-way radio where there are 
> a set of 4 components that need to be changed whenever a different frequency 
> is needed.  This needs to be done in a workshop and not it the field.
> http://www.prc68.com/I/BC611.shtml
> Those 4 components are the Rx crystal, Tx crystal, Tank coil and antenna coil.
> All of these were marked with the radio frequency rather than typical 
> parameters for a component.
> So just because a component is marked with a frequency you can not be sure 
> it's a crystal, coil or whatever.
> 
> The URC-4 survival/rescue radio uses cylindrical crystals CR-24/U package):
> http://www.prc68.com/I/URC4.html#Components
> 
> -- 
> Have Fun,
> 
> Brooke Clarke
> http://www.PRC68.com
> http://www.end2partygovernment.com/2012Issues.html
> The lesser of evils is still evil.
> 
>  Original Message 
>> The markings are actually 3720 k/cs, 3760 k/cs and 3780 k/cs. And I think
>> it's probably for the wireless No 7 shown in http://www.wftw.nl/wsets.html.
>> But you could be right - they may not be crystals.
>> 
>> As for ebay .. yes, buyer beware. Though in this case I know the seller
>> personally and while he might be mistaken, he won't be intentionally
>> misleading.
>> 
>> 
>> On Sat, Nov 26, 2016 at 3:15 PM, Bob Camp  wrote:
>> 
>>> Hi
>>> 
>>> Welcome to eBay …..
>>> 
>>> I don’t believe those are crystals at all. If you take a look at the
>>> markings on the parts
>>> they are labeled “80 K cps”. In other words they are 80 KHz not 80M
>>> devices. Looking
>>> at the gap, if there is a crystal in there it’s not obvious that it’s big
>>> enough for 80 KHz.
>>> 
>>> My guess is that they are tank tuning caps for an mechanical MOPA style
>>> transmitter.
>>> The size and construction are about right for that sort of thing. Swap one
>>> in and the
>>> transmit frequency changes. Number 7 for 80 KHz. Number 8 for 85 KHz.
>>> Number 7 for
>>> 75 KHz. Just a guess …
>>> 
>>> Bob
>>> 
>>> 
>>> 
 On Nov 26, 2016, at 7:40 AM, Adrian Godwin  wrote:
 
 I bought some old crystals on ebay :
 
 http://www.ebay.co.uk/itm/15114483
 
 Is anyone familiar with this style ? I don't think the quartz is visible
>>> in
 the glass section : I imagine that's just an insulator. I think the
>>> quartz
 is under a brass disc, with a sping to hold the disc down visible through
 the glass.
 
 Does anyone know what the reference marked on them "w'less sets No 7"
 refers to ?
 
 
 On Mon, Sep 26, 2016 at 6:50 AM, Mark Sims  wrote:
 
> Can you say "Mr Rogers' Neighborhood?"   I knew you could...
> 
> He (along with creepy Mr McFeelie) always ran segments on how some item
> was made.   Geared towards pre-schoolers, but always worth watching.
> 
> -
> 
> Compare the Science channel's new "How Do They Do It" to the older "How
> It's Made"
> shows.
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 ___
 time-nuts mailing list -- time-nuts@febo.com
 To unsubscribe, go to https://www.febo.com/cgi-bin/
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Re: [time-nuts] Vintage Quartz Crystal Manufacturing

[Brooke Clarke]

Hi Adrisn:

The BC-611 Walkie-Talkie is a crystal controlled 2-way radio where there are a set of 4 components that need to be 
changed whenever a different frequency is needed.  This needs to be done in a workshop and not it the field.

http://www.prc68.com/I/BC611.shtml
Those 4 components are the Rx crystal, Tx crystal, Tank coil and antenna coil.
All of these were marked with the radio frequency rather than typical 
parameters for a component.
So just because a component is marked with a frequency you can not be sure it's 
a crystal, coil or whatever.

The URC-4 survival/rescue radio uses cylindrical crystals CR-24/U package):
http://www.prc68.com/I/URC4.html#Components

--
Have Fun,

Brooke Clarke
http://www.PRC68.com
http://www.end2partygovernment.com/2012Issues.html
The lesser of evils is still evil.

 Original Message 

The markings are actually 3720 k/cs, 3760 k/cs and 3780 k/cs. And I think
it's probably for the wireless No 7 shown in http://www.wftw.nl/wsets.html.
But you could be right - they may not be crystals.

As for ebay .. yes, buyer beware. Though in this case I know the seller
personally and while he might be mistaken, he won't be intentionally
misleading.


On Sat, Nov 26, 2016 at 3:15 PM, Bob Camp  wrote:


Hi

Welcome to eBay …..

I don’t believe those are crystals at all. If you take a look at the
markings on the parts
they are labeled “80 K cps”. In other words they are 80 KHz not 80M
devices. Looking
at the gap, if there is a crystal in there it’s not obvious that it’s big
enough for 80 KHz.

My guess is that they are tank tuning caps for an mechanical MOPA style
transmitter.
The size and construction are about right for that sort of thing. Swap one
in and the
transmit frequency changes. Number 7 for 80 KHz. Number 8 for 85 KHz.
Number 7 for
75 KHz. Just a guess …

Bob




On Nov 26, 2016, at 7:40 AM, Adrian Godwin  wrote:

I bought some old crystals on ebay :

http://www.ebay.co.uk/itm/15114483

Is anyone familiar with this style ? I don't think the quartz is visible

in

the glass section : I imagine that's just an insulator. I think the

quartz

is under a brass disc, with a sping to hold the disc down visible through
the glass.

Does anyone know what the reference marked on them "w'less sets No 7"
refers to ?


On Mon, Sep 26, 2016 at 6:50 AM, Mark Sims  wrote:


Can you say "Mr Rogers' Neighborhood?"   I knew you could...

He (along with creepy Mr McFeelie) always ran segments on how some item
was made.   Geared towards pre-schoolers, but always worth watching.

-

Compare the Science channel's new "How Do They Do It" to the older "How
It's Made"
shows.
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Re: [time-nuts] Vintage Quartz Crystal Manufacturing

[Alan Melia]

Hi agn Adrian .quote from Wireless for the Warrior

"Wireless Set No. 7 was a mobile transmitter/receiver developed in 1935. 
Use: communication between tanks. Frequency range 1.875-5MHz. MO/crystal 
control. RF output 5W. R/T and MCW. Range 3-5 miles. Unusual shape to fit in 
the bulge of a tank. Only a limited number were produced. Replaced by No. 9 
set."


Alan
G3NYK


- Original Message - 
From: "Adrian Godwin" 
To: "Discussion of precise time and frequency measurement" 


Sent: Saturday, November 26, 2016 12:40 PM
Subject: Re: [time-nuts] Vintage Quartz Crystal Manufacturing



I bought some old crystals on ebay :

http://www.ebay.co.uk/itm/15114483

Is anyone familiar with this style ? I don't think the quartz is visible 
in

the glass section : I imagine that's just an insulator. I think the quartz
is under a brass disc, with a sping to hold the disc down visible through
the glass.

Does anyone know what the reference marked on them "w'less sets No 7"
refers to ?


On Mon, Sep 26, 2016 at 6:50 AM, Mark Sims  wrote:


Can you say "Mr Rogers' Neighborhood?"   I knew you could...

He (along with creepy Mr McFeelie) always ran segments on how some item
was made.   Geared towards pre-schoolers, but always worth watching.

-

Compare the Science channel's new "How Do They Do It" to the older "How
It's Made"
shows.
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Re: [time-nuts] Vintage Quartz Crystal Manufacturing

[Bob Stewart]

To me, these devices look like they may have a quartz crystal at the bottom, 
and spring and screw adjuster on the top.
Bob - AE6RV

  From: Paul Berger 
 To: Discussion of precise time and frequency measurement  
 Sent: Saturday, November 26, 2016 10:47 AM
 Subject: Re: [time-nuts] Vintage Quartz Crystal Manufacturing
   
Not sure where you got the 80 K cps the seller mentions 80M(eter) and 
the items are clearly marked 3720 KCS 3760 KCS and 3780 KCS which would 
be in the 80 meter band.

Paul.


On 2016-11-26 11:15 AM, Bob Camp wrote:
> Hi
>
> Welcome to eBay …..
>
> I don’t believe those are crystals at all. If you take a look at the markings 
> on the parts
> they are labeled “80 K cps”. In other words they are 80 KHz not 80M devices. 
> Looking
> at the gap, if there is a crystal in there it’s not obvious that it’s big 
> enough for 80 KHz.
>
> My guess is that they are tank tuning caps for an mechanical MOPA style 
> transmitter.
> The size and construction are about right for that sort of thing. Swap one in 
> and the
> transmit frequency changes. Number 7 for 80 KHz. Number 8 for 85 KHz. Number 
> 7 for
> 75 KHz. Just a guess …
>
> Bob
>
>
>
>> On Nov 26, 2016, at 7:40 AM, Adrian Godwin  wrote:
>>
>> I bought some old crystals on ebay :
>>
>> http://www.ebay.co.uk/itm/15114483
>>
>> Is anyone familiar with this style ? I don't think the quartz is visible in
>> the glass section : I imagine that's just an insulator. I think the quartz
>> is under a brass disc, with a sping to hold the disc down visible through
>> the glass.
>>
>> Does anyone know what the reference marked on them "w'less sets No 7"
>> refers to ?
>>
>>
>> On Mon, Sep 26, 2016 at 6:50 AM, Mark Sims  wrote:
>>
>>> Can you say "Mr Rogers' Neighborhood?"  I knew you could...
>>>
>>> He (along with creepy Mr McFeelie) always ran segments on how some item
>>> was made.  Geared towards pre-schoolers, but always worth watching.
>>>
>>> -
>>>
>>> Compare the Science channel's new "How Do They Do It" to the older "How
>>> It's Made"
>>> shows.
>>> ___
>>> 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.
>>>
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Re: [time-nuts] Vintage Quartz Crystal Manufacturing

[Mike Feher]

Wow, those are really neat. I have several hundred different style holders in 
my collection, but, I have never seen any like those. Thanks for sharing. Now 
to find one :). Regards - Mike 

Mike B. Feher, N4FS
89 Arnold Blvd.
Howell, NJ, 07731
848-245-9115

-Original Message-
From: time-nuts [mailto:time-nuts-boun...@febo.com] On Behalf Of Adrian Godwin
Sent: Saturday, November 26, 2016 7:41 AM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] Vintage Quartz Crystal Manufacturing

I bought some old crystals on ebay :

http://www.ebay.co.uk/itm/15114483

Is anyone familiar with this style ? I don't think the quartz is visible in the 
glass section : I imagine that's just an insulator. I think the quartz is under 
a brass disc, with a sping to hold the disc down visible through the glass.

Does anyone know what the reference marked on them "w'less sets No 7"
refers to ?


On Mon, Sep 26, 2016 at 6:50 AM, Mark Sims  wrote:

> Can you say "Mr Rogers' Neighborhood?"   I knew you could...
>
> He (along with creepy Mr McFeelie) always ran segments on how some item
> was made.   Geared towards pre-schoolers, but always worth watching.
>
> -
>
> Compare the Science channel's new "How Do They Do It" to the older 
> "How It's Made"
> shows.
> ___
> 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.
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Re: [time-nuts] Vintage Quartz Crystal Manufacturing

[Adrian Godwin]

The markings are actually 3720 k/cs, 3760 k/cs and 3780 k/cs. And I think
it's probably for the wireless No 7 shown in http://www.wftw.nl/wsets.html.
But you could be right - they may not be crystals.

As for ebay .. yes, buyer beware. Though in this case I know the seller
personally and while he might be mistaken, he won't be intentionally
misleading.


On Sat, Nov 26, 2016 at 3:15 PM, Bob Camp  wrote:

> Hi
>
> Welcome to eBay …..
>
> I don’t believe those are crystals at all. If you take a look at the
> markings on the parts
> they are labeled “80 K cps”. In other words they are 80 KHz not 80M
> devices. Looking
> at the gap, if there is a crystal in there it’s not obvious that it’s big
> enough for 80 KHz.
>
> My guess is that they are tank tuning caps for an mechanical MOPA style
> transmitter.
> The size and construction are about right for that sort of thing. Swap one
> in and the
> transmit frequency changes. Number 7 for 80 KHz. Number 8 for 85 KHz.
> Number 7 for
> 75 KHz. Just a guess …
>
> Bob
>
>
>
> > On Nov 26, 2016, at 7:40 AM, Adrian Godwin  wrote:
> >
> > I bought some old crystals on ebay :
> >
> > http://www.ebay.co.uk/itm/15114483
> >
> > Is anyone familiar with this style ? I don't think the quartz is visible
> in
> > the glass section : I imagine that's just an insulator. I think the
> quartz
> > is under a brass disc, with a sping to hold the disc down visible through
> > the glass.
> >
> > Does anyone know what the reference marked on them "w'less sets No 7"
> > refers to ?
> >
> >
> > On Mon, Sep 26, 2016 at 6:50 AM, Mark Sims  wrote:
> >
> >> Can you say "Mr Rogers' Neighborhood?"   I knew you could...
> >>
> >> He (along with creepy Mr McFeelie) always ran segments on how some item
> >> was made.   Geared towards pre-schoolers, but always worth watching.
> >>
> >> -
> >>
> >> Compare the Science channel's new "How Do They Do It" to the older "How
> >> It's Made"
> >> shows.
> >> ___
> >> 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.
>
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Re: [time-nuts] Vintage Quartz Crystal Manufacturing

[Orin Eman]

Actually, there is a 37 before the last digits, so they are 3720, 3760 and
3780 kHz.

On Sat, Nov 26, 2016 at 7:15 AM, Bob Camp  wrote:

> Hi
>
> Welcome to eBay …..
>
> I don’t believe those are crystals at all. If you take a look at the
> markings on the parts
> they are labeled “80 K cps”. In other words they are 80 KHz not 80M
> devices. Looking
> at the gap, if there is a crystal in there it’s not obvious that it’s big
> enough for 80 KHz.
>
> My guess is that they are tank tuning caps for an mechanical MOPA style
> transmitter.
> The size and construction are about right for that sort of thing. Swap one
> in and the
> transmit frequency changes. Number 7 for 80 KHz. Number 8 for 85 KHz.
> Number 7 for
> 75 KHz. Just a guess …
>
> Bob
>
>
>
> > On Nov 26, 2016, at 7:40 AM, Adrian Godwin  wrote:
> >
> > I bought some old crystals on ebay :
> >
> > http://www.ebay.co.uk/itm/15114483
> >
> > Is anyone familiar with this style ? I don't think the quartz is visible
> in
> > the glass section : I imagine that's just an insulator. I think the
> quartz
> > is under a brass disc, with a sping to hold the disc down visible through
> > the glass.
> >
> > Does anyone know what the reference marked on them "w'less sets No 7"
> > refers to ?
> >
> >
> > On Mon, Sep 26, 2016 at 6:50 AM, Mark Sims  wrote:
> >
> >> Can you say "Mr Rogers' Neighborhood?"   I knew you could...
> >>
> >> He (along with creepy Mr McFeelie) always ran segments on how some item
> >> was made.   Geared towards pre-schoolers, but always worth watching.
> >>
> >> -
> >>
> >> Compare the Science channel's new "How Do They Do It" to the older "How
> >> It's Made"
> >> shows.
> >> ___
> >> 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.
>
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Re: [time-nuts] Vintage Quartz Crystal Manufacturing

[Paul Berger]

Not sure where you got the 80 K cps the seller mentions 80M(eter) and 
the items are clearly marked 3720 KCS 3760 KCS and 3780 KCS which would 
be in the 80 meter band.


Paul.


On 2016-11-26 11:15 AM, Bob Camp wrote:

Hi

Welcome to eBay …..

I don’t believe those are crystals at all. If you take a look at the markings 
on the parts
they are labeled “80 K cps”. In other words they are 80 KHz not 80M devices. 
Looking
at the gap, if there is a crystal in there it’s not obvious that it’s big 
enough for 80 KHz.

My guess is that they are tank tuning caps for an mechanical MOPA style 
transmitter.
The size and construction are about right for that sort of thing. Swap one in 
and the
transmit frequency changes. Number 7 for 80 KHz. Number 8 for 85 KHz. Number 7 
for
75 KHz. Just a guess …

Bob




On Nov 26, 2016, at 7:40 AM, Adrian Godwin  wrote:

I bought some old crystals on ebay :

http://www.ebay.co.uk/itm/15114483

Is anyone familiar with this style ? I don't think the quartz is visible in
the glass section : I imagine that's just an insulator. I think the quartz
is under a brass disc, with a sping to hold the disc down visible through
the glass.

Does anyone know what the reference marked on them "w'less sets No 7"
refers to ?


On Mon, Sep 26, 2016 at 6:50 AM, Mark Sims  wrote:


Can you say "Mr Rogers' Neighborhood?"   I knew you could...

He (along with creepy Mr McFeelie) always ran segments on how some item
was made.   Geared towards pre-schoolers, but always worth watching.

-

Compare the Science channel's new "How Do They Do It" to the older "How
It's Made"
shows.
___
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mailman/listinfo/time-nuts
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Re: [time-nuts] New Timestamping / Time Interval Counter: the TICC

[timeok]

   Hi Li,
   can you share more info about your project?
   Luciano
   www.timeok.it


   From "time-nuts" time-nuts-boun...@febo.com
   To "Discussion of precise time and frequency measurement" time-nuts@febo.com
   Cc
   Date Sat, 26 Nov 2016 13:16:34 +0800
   Subject Re: [time-nuts] New Timestamping / Time Interval Counter: the TICC
   Great job.

   I am doing a similar project too.
   I've just sent gerber/pos/bom files to the PCB company. 3 tdc7200s are 
used on my board to support the 3-corner-hat measurement.

   Regards
   Li Ang

   ---Original---
   From: "John Ackermann N8UR"
   Date: 2016/11/25 22:57:33
   To: "Discussion of precise time and frequency 
measurement";"David";
   Subject: Re: [time-nuts] New Timestamping / Time Interval Counter: the TICC


   Hi Dave --

   I should clarify -- this UI is just a character-based menu system using
   a dumb terminal program. The code is implemented within the Arduino.

   It's written in the somewhat nonstandard C/C++ used by the Arduino IDE.
   This morning I'm going to add a "TODO-UI" file to the git repository
   explaining what the menu system needs to do.

   TimeLab is able to read the data stream and plot results in real-time,
   so there's no urgent need for software on the host end. But I do need
   to allow the user to set a number of configuration parameters without
   having to recompile the code, so that's the urgent goal.

   Thanks!
   John
   
   On 11/25/2016 03:26 AM, David wrote:
   > John,
   >
   > In what language is the GUI written? I might be able to help on
   > that, or other parts of the software, if someone else hasn't yet
   > volunteered.
   >
   > Dave, WA8YWQ
   >
   > On 2016-11-24 06:43, John Ackermann N8UR wrote:
   >
   >> Hi Anders --
   >>
   >> Thanks, and thanks for the info on the 53230A. I have not used one of
   >> those myself but the data sheet lists 20ps single-shot.
   >>
   >> Also I should note that the TICC does not compete with counters like
   >> the 53230A for high speed measurement, or frequency counting. It does
   >> far fewer measurements per second than the high-end counters -- my
   >> design criteria was for use in PPS measuring system.
   >>
   >> With the current software, the actual measurement processing time is
   >> about 1 millisecond; we may be able to optimize a hundred or two
   >> microseconds from that as the code currently has more 64 bit
   >> operations than are necessary, and there are other things that can
   >> surely be tweaked.
   >>
   >> The killer is the serial output via USB. It can take up to 10 ms to
   >> output 20 characters, and that's what really limits the measurement
   >> rate. I'm pretty sure this can be improved (one idea is to buffer
   >> results to reduce USB packetization delays), but there's other
   >> functionality that I need to finish first.
   >>
   >> BTW -- the software is open source and on github at
   >> https://github.com/TAPR/TICC , so I welcome anyone who wants to work
   >> on it. Bug fixes are gladly accepted, and if you're looking for work
   >> to do, I could use a volunteer to work on a couple of areas, most
   >> critically finishing a UI that will allow the user to set operating
   >> parameters.
   >>
   >> John
   >> 
   >> On 11/24/2016 02:40 AM, Anders Wallin wrote:
   >>> Nice work!
   >>> On the website in the introduction you mention 22ps single-shot
   >>> time-stamping on the 5370A/B.
   >>> I think it's well established that the 53230A does about 11-12 ps for
   >>> time-intervals, which corresponds to about 9 ps single-channel. see for
   >>> example:
   >>> 
http://www.anderswallin.net/wp-content/uploads/2015/04/53230A_PPS_skew.png
   >>>
   >>> Anders
   >>>
   >>>
   >>> On Wed, Nov 23, 2016 at 11:13 PM, Peter Vince >> >
   >>> wrote:
   >>>
    Fantastic John - well done! Yes, I'll definitely put an order in as soon
    as possible.
   
    Regards,
   
    Peter (G8ZZR, London)
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   >>> and follow the instructions there.
   >>>
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   >> and follow the instructions there.
   >>
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Re: [time-nuts] Vintage Quartz Crystal Manufacturing

[Bob Camp]

Hi

Welcome to eBay …..

I don’t believe those are crystals at all. If you take a look at the markings 
on the parts
they are labeled “80 K cps”. In other words they are 80 KHz not 80M devices. 
Looking
at the gap, if there is a crystal in there it’s not obvious that it’s big 
enough for 80 KHz. 

My guess is that they are tank tuning caps for an mechanical MOPA style 
transmitter. 
The size and construction are about right for that sort of thing. Swap one in 
and the 
transmit frequency changes. Number 7 for 80 KHz. Number 8 for 85 KHz. Number 7 
for 
75 KHz. Just a guess …

Bob 



> On Nov 26, 2016, at 7:40 AM, Adrian Godwin  wrote:
> 
> I bought some old crystals on ebay :
> 
> http://www.ebay.co.uk/itm/15114483
> 
> Is anyone familiar with this style ? I don't think the quartz is visible in
> the glass section : I imagine that's just an insulator. I think the quartz
> is under a brass disc, with a sping to hold the disc down visible through
> the glass.
> 
> Does anyone know what the reference marked on them "w'less sets No 7"
> refers to ?
> 
> 
> On Mon, Sep 26, 2016 at 6:50 AM, Mark Sims  wrote:
> 
>> Can you say "Mr Rogers' Neighborhood?"   I knew you could...
>> 
>> He (along with creepy Mr McFeelie) always ran segments on how some item
>> was made.   Geared towards pre-schoolers, but always worth watching.
>> 
>> -
>> 
>> Compare the Science channel's new "How Do They Do It" to the older "How
>> It's Made"
>> shows.
>> ___
>> 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.
>> 
> ___
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> To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
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Re: [time-nuts] Vintage Quartz Crystal Manufacturing

[Clint Jay]

Might be worth popping over to the GQRP mailing list and asking,  there are
a few enthusiasts there but wireless set no.  7 makes it sound like they
were from a military radio.

On 26 Nov 2016 13:00, "Adrian Godwin"  wrote:

> I bought some old crystals on ebay :
>
> http://www.ebay.co.uk/itm/15114483
>
> Is anyone familiar with this style ? I don't think the quartz is visible in
> the glass section : I imagine that's just an insulator. I think the quartz
> is under a brass disc, with a sping to hold the disc down visible through
> the glass.
>
> Does anyone know what the reference marked on them "w'less sets No 7"
> refers to ?
>
>
> On Mon, Sep 26, 2016 at 6:50 AM, Mark Sims  wrote:
>
> > Can you say "Mr Rogers' Neighborhood?"   I knew you could...
> >
> > He (along with creepy Mr McFeelie) always ran segments on how some item
> > was made.   Geared towards pre-schoolers, but always worth watching.
> >
> > -
> >
> > Compare the Science channel's new "How Do They Do It" to the older "How
> > It's Made"
> > shows.
> > ___
> > 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.
> >
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Re: [time-nuts] Vintage Quartz Crystal Manufacturing

[Alan Melia]

Hi Adrian (in the UK I think) I think you will find the designation WS.7 is 
a UK Military type number. Try and search vintage military radio.
Lovely beasties, I have not seen that configuration and they are probably 
quite early in the use of quartz in sets on a manufacturing scale


BestWishes
Alan
G3NYK

- Original Message - 
From: "Adrian Godwin" 
To: "Discussion of precise time and frequency measurement" 


Sent: Saturday, November 26, 2016 12:40 PM
Subject: Re: [time-nuts] Vintage Quartz Crystal Manufacturing



I bought some old crystals on ebay :

http://www.ebay.co.uk/itm/15114483

Is anyone familiar with this style ? I don't think the quartz is visible 
in

the glass section : I imagine that's just an insulator. I think the quartz
is under a brass disc, with a sping to hold the disc down visible through
the glass.

Does anyone know what the reference marked on them "w'less sets No 7"
refers to ?


On Mon, Sep 26, 2016 at 6:50 AM, Mark Sims  wrote:


Can you say "Mr Rogers' Neighborhood?"   I knew you could...

He (along with creepy Mr McFeelie) always ran segments on how some item
was made.   Geared towards pre-schoolers, but always worth watching.

-

Compare the Science channel's new "How Do They Do It" to the older "How
It's Made"
shows.
___
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mailman/listinfo/time-nuts
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Re: [time-nuts] Vintage Quartz Crystal Manufacturing

[Adrian Godwin]

I bought some old crystals on ebay :

http://www.ebay.co.uk/itm/15114483

Is anyone familiar with this style ? I don't think the quartz is visible in
the glass section : I imagine that's just an insulator. I think the quartz
is under a brass disc, with a sping to hold the disc down visible through
the glass.

Does anyone know what the reference marked on them "w'less sets No 7"
refers to ?


On Mon, Sep 26, 2016 at 6:50 AM, Mark Sims  wrote:

> Can you say "Mr Rogers' Neighborhood?"   I knew you could...
>
> He (along with creepy Mr McFeelie) always ran segments on how some item
> was made.   Geared towards pre-schoolers, but always worth watching.
>
> -
>
> Compare the Science channel's new "How Do They Do It" to the older "How
> It's Made"
> shows.
> ___
> 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.
>
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