Semiconductorstore.com also have the CW25-TIM at a cheaper price ($64
vs $89) and it is more sensitive, so can possibly work indoors. They
both, apparently, use the same NavSync chips, so does the '25 have
disadvantages I haven't spotted?
Peter
2009/12/28 Hal Murray
-nuts] Timenoob - Cheap and simple 10MHz reference
Semiconductorstore.com also have the CW25-TIM at a cheaper price ($64
vs $89) and it is more sensitive, so can possibly work indoors. They
both, apparently, use the same NavSync chips, so does the '25 have
disadvantages I haven't spotted
...@theiet.org
Date: Tuesday, December 29, 2009 10:21 am
Subject: Re: [time-nuts] Timenoob - Cheap and simple 10MHz reference
Semiconductorstore.com also have the CW25-TIM at a cheaper price ($64
vs $89) and it is more sensitive, so can possibly work indoors. They
both, apparently, use the same
. This
is
without sawtooth correction because this unit doesn't support it - even
with the
Motorola software.
Ed
- Original Message -
From: Peter Vincepvi...@theiet.org
Date: Tuesday, December 29, 2009 10:21 am
Subject: Re: [time-nuts] Timenoob - Cheap and simple 10MHz reference
Bruce Griffiths wrote:
-185dBW = -155dBm
so both sensitivity measures are equivalent.
But -185 dB(something) looks more impressive than -155 dB(something).
Specsmanship... indeed. I also spoted this detail.
Cheers,
Magnus
___
time-nuts mailing
Peter Vince wrote:
Oh Good Lord - not paying attention to the units! Sorry guys!
This is exactly what they wanted to achieve, but the good thing is that
more people got to become aware of it, so something good came out of
that misstake. At least something good came out of it.
When
.
Robert G8RPI.
--- On Mon, 28/12/09, Giuseppe Marullo giuse...@marullo.it wrote:
From: Giuseppe Marullo giuse...@marullo.it
Subject: Re: [time-nuts] Timenoob - Cheap and simple 10MHz reference
To: Discussion of precise time and frequency measurement time-nuts@febo.com
Date: Monday, 28 December
Giuseppe Marullo wrote:
Hi all,
just subscribed, I would like a quick advice on a 10MHz reference for
calibrating my instruments and for fun. In particular, I would like to
know if you could give me advice on EFRATOM FRS-A,FRS-C, DATUM LPRO-101,
Thunderbolt and such.
I would prefer a GPSDO
and frequency measurement time-nuts@febo.com
Cc: giuseppe.maru...@iname.com
Sent: Mon, December 28, 2009 5:14:49 AM
Subject: Re: [time-nuts] Timenoob - Cheap and simple 10MHz reference
Hi Giuseppe,
Welcome to the group.
If you are already happy constructing equipment and have basic test gear
('scope, DMM
Robert,
Welcome to the group.
Thank you and all the others, you are giving me a lot of informations. BTW, my
provider retrieved my emails so I am fully operational (at least I hope).
while I did not originally envision building this kind of equipment, I
could do it while it lies well within
Does the factory sell direct in small quantities ?
73, Dick, W1KSZ
-Original Message-
From: Eamon Skelton nos...@oceanfree.net
Sent: Dec 28, 2009 6:15 AM
To: Discussion of precise time and frequency measurement time-nuts@febo.com
Subject: Re: [time-nuts] Timenoob - Cheap and simple
of precise time and frequency measurement
time-nuts@febo.com
Sent: Monday, December 28, 2009 4:49 PM
Subject: Re: [time-nuts] Timenoob - Cheap and simple 10MHz reference
Does the factory sell direct in small quantities ?
73, Dick, W1KSZ
-Original Message-
From: Eamon Skelton nos
Richard W. Solomon wrote:
Does the factory sell direct in small quantities ?
73, Dick, W1KSZ
I don't think so. I live in Cork, Ireland. Navsync are in Shannon about
70 miles from here. I ordered my CW12-TIM from Cutter Electronics in Australia.
As they were out of stock at the time, I had to
.
--- On Mon, 28/12/09, SAL CORNACCHIA salc...@rogers.com wrote:
From: SAL CORNACCHIA salc...@rogers.com
Subject: Re: [time-nuts] Timenoob - Cheap and simple 10MHz reference
To: Discussion of precise time and frequency measurement time-nuts@febo.com
Date: Monday, 28 December, 2009, 15:32
Hi Robert
snip
Maybe a GPSDO myself, who knows...wondering if this could be done all digital,
without using a DAC, without using a driving voltage for a OCXO.
Giuseppe
Symmetricom made a OXCO that had the DAC built-in so it was controlled by a
digital interface. But it is hard to find, seen them on
28, 2009 12:07:21 PM
Subject: Re: [time-nuts] Timenoob - Cheap and simple 10MHz reference
Hi Sal,
No it does not have a 10MHz output. However to calibrate an oscillator that is
very close to 10MHz you can use the 1PPS output to adjust it exactly. Trigger a
'scope with the 1PPS while monitoring
Does the factory sell direct in small quantities ?
From here (California), googling for Navsync CW12-TIM finds:
http://www.semiconductorstore.com/pages/asp/supplier.asp?pl=0138gclid=CL_G5ar
W-Z4CFU1M5Qod1XNWLA
(Sorry for the line wrap.)
--
These are my opinions, not necessarily my
: Hal Murray hmur...@megapathdsl.net
Date: Monday, December 28, 2009 11:44 am
Subject: Re: [time-nuts] Timenoob - Cheap and simple 10MHz reference
Does the factory sell direct in small quantities ?
From here (California), googling for Navsync CW12-TIM finds:
http
Giuseppe Marullo wrote:
Robert,
Welcome to the group.
Thank you and all the others, you are giving me a lot of informations.
BTW, my provider retrieved my emails so I am fully operational (at
least I hope).
while I did not originally envision building this kind of equipment, I
could do it
Hi
Your budget is going to make things tough.
A Thunderbolt needs a triple supply (+12, -12, and +5) to operate. It also
needs a GPS antenna of some sort.
The Rubidiums all need a supply and a heat sink. Some of them like the FRS-A
need unusual connectors.
They all need to be operated
And started down the dark path you have. You will not have to wait
long before you completely succumb to the dark side.
Jim Palfreyman
2009/12/28 Bob Camp li...@cq.nu:
Hi
Your budget is going to make things tough.
A Thunderbolt needs a triple supply (+12, -12, and +5) to operate. It also
Thanks a lot to all for your quick answer.
Rubinium should be good for my needs, but buying it surplus makes me
think I could get something very used (and abused) and it does not have
the self correcting thing thunderbolt has.
GPSDO gives me also the time, maybe with a supercool LCD display.
giuse...@marullo.it said:
Do you know exactly the power requirement? On Ebay I read 15W then few
mA on each branch (board only). Something is not clear to me.
http://www.leapsecond.com/pages/tbolt/power.htm
Lots more Thunderbolt info here:
http://www.leapsecond.com/pages/tapr-tbolt/
--
Hi Giuseppe,
I think you would be better served with the Thunderbolt as it is both a GPS and
an oscillator, that is it is a GPSDO.
Last I remember, an eBay user Flukel (the last character is a lower case L)
was spoken of, on this list, as being a reliable Chinese
vendor. He had oscillators,
Hi
The simple answer on the supply is that there are a couple of answers.
Very little current is pulled from the -12 supply. I can not imagine a supply
that would not keep up with the -12 requirement.
The +12 supply mainly runs the OCXO in the unit. Since it's running an oven,
the power will
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