It is close to 18 month now that I first proposed a D/M for $200. Thanks to
the help of Corby, Richard, Brian, Bob and Hubert I think it is very close
to final release. The delay is mainly due to testing, not by the five
mentioned above but by others, that did get kits under the condition
Griffiths bruce.griffi...@xtra.co.nz
To: Discussion of precise time and frequency measurement
time-nuts@febo.com
Sent: Tuesday, May 11, 2010 9:12 PM
Subject: Re: [time-nuts] Dual Mixer
Warren
Calculating an integral using a sampled data system when the Nyquist
criterion is met is exactly equivalent
WarrenS wrote:
Bruce
Good, It does seem like we are finally making some good progress.
You now seem to acknowledge that my tester could work if I integrate.
You now seem to acknowledge that I am integrating by using a filter.
In a sampled data system integration is equivalent to a filter but
Sounds like someone is grandstanding to me!
Steve
On 12 May 2010 22:26, Bruce Griffiths bruce.griffi...@xtra.co.nz wrote:
WarrenS wrote:
Bruce
Good, It does seem like we are finally making some good progress.
You now seem to acknowledge that my tester could work if I integrate.
You now
Hi Bert,
I can help you in PCAD schema drowing(i.e. as xxx.pdf output too)_have a
litle experiance :-).
(so ca. 20 years, with RF layouting so good 30 years)...
Best Greetings,
Karesz
2010/5/11 ewkeh...@aol.com
The Dual Mixer project is nearing completion.
Let me refresh every ones memory
Thank you Karesz.
I will contact you direct and we can look at what needs to be done. Nothing
Fancy. Bert
In a message dated 5/11/2010 10:59:17 A.M. Eastern Daylight Time,
szeke...@gmail.com writes:
Hi Bert,
I can help you in PCAD schema drowing(i.e. as xxx.pdf output too)_have a
OK Bert!
Im wayting on your scripts...
K.
2010/5/11 ewkeh...@aol.com
Thank you Karesz.
I will contact you direct and we can look at what needs to be done. Nothing
Fancy. Bert
In a message dated 5/11/2010 10:59:17 A.M. Eastern Daylight Time,
szeke...@gmail.com writes:
Hi Bert,
I
.
http://www.leapsecond.com/pages/10811-g/
(The results from my PLL tester is attached)
ws
**
- Original Message -
From: ewkeh...@aol.com
To: time-nuts@febo.com
Sent: Tuesday, May 11, 2010 7:02 AM
Subject: [time-nuts] Dual Mixer
The Dual Mixer project is nearing
**
- Original Message - From: ewkeh...@aol.com
To: time-nuts@febo.com
Sent: Tuesday, May 11, 2010 7:02 AM
Subject: [time-nuts] Dual Mixer
The Dual Mixer project is nearing completion.
Let me refresh every ones memory as to my goals.
a) Total cost less than $ 200
b) 1 E-13 with a one second offset
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] Dual Mixer
As long as one is aware that your method (as implemented by you) doesn't
actually measure Allan variance, it may be useful for comparing the
relative stability some sources for small Tau (unfortunately the range
://www.leapsecond.com/pages/10811-g/
(The results from my PLL tester is attached)
ws
**
- Original Message - From: EWKehren at aol.com
To: time-nuts at febo.com
Sent: Tuesday, May 11, 2010 7:02 AM
Subject: [time-nuts] Dual Mixer
The Dual Mixer project is nearing completion.
Let me
: EWKehren at aol.com
To: time-nuts at febo.com
Sent: Tuesday, May 11, 2010 7:02 AM
Subject: [time-nuts] Dual Mixer
The Dual Mixer project is nearing completion.
Let me refresh every ones memory as to my goals.
a) Total cost less than $ 200
b) 1 E-13 with a one second offset
c) use parts attainable
Oscillator test.
http://www.leapsecond.com/pages/10811-g/
(The results from my PLL tester is attached)
ws
**
- Original Message - From: EWKehren at aol.com
To: time-nuts at febo.com
Sent: Tuesday, May 11, 2010 7:02 AM
Subject: [time-nuts] Dual Mixer
The Dual Mixer project
test.
http://www.leapsecond.com/pages/10811-g/
(The results from my PLL tester is attached)
ws
**
- Original Message - From: EWKehren at aol.com
To: time-nuts at febo.com
Sent: Tuesday, May 11, 2010 7:02 AM
Subject: [time-nuts] Dual Mixer
The Dual Mixer
: Tuesday, May 11, 2010 7:02 AM
Subject: [time-nuts] Dual Mixer
The Dual Mixer project is nearing completion.
Let me refresh every ones memory as to my goals.
a) Total cost less than $ 200
b) 1 E-13 with a one second offset
c) use parts attainable by every one
d) easy to assemble only a few
/10811-g/
(The results from my PLL tester is attached)
ws
**
- Original Message - From: EWKehren at aol.com
To: time-nuts at febo.com
Sent: Tuesday, May 11, 2010 7:02 AM
Subject: [time-nuts] Dual Mixer
The Dual Mixer project is nearing completion.
Let me refresh every
tester is attached)
ws
**
- Original Message - From: EWKehren at aol.com
To: time-nuts at febo.com
Sent: Tuesday, May 11, 2010 7:02 AM
Subject: [time-nuts] Dual Mixer
The Dual Mixer project is nearing completion.
Let me refresh every ones memory as to my goals.
a) Total cost
on your project.
-- john, KE5FX
-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com]on
Behalf Of ewkeh...@aol.com
Sent: Tuesday, May 11, 2010 4:31 PM
To: time-nuts@febo.com
Subject: Re: [time-nuts] Dual Mixer
Allow me to apologize to start
[mailto:time-nuts-boun...@febo.com]on
Behalf Of ewkeh...@aol.com
Sent: Tuesday, May 11, 2010 4:31 PM
To: time-nuts@febo.com
Subject: Re: [time-nuts] Dual Mixer
Allow me to apologize to start this again. Bert
In a message dated 5/11/2010 7:25:39 P.M. Eastern Daylight Time,
warrensjmail
/pages/10811-g/
(The results from my PLL tester is attached)
ws
**
- Original Message - From: EWKehren at aol.com
To: time-nuts at febo.com
Sent: Tuesday, May 11, 2010 7:02 AM
Subject: [time-nuts] Dual Mixer
The Dual Mixer project is nearing completion.
Let me refresh
: [time-nuts] Dual Mixer
The Dual Mixer project is nearing completion.
Let me refresh every ones memory as to my goals.
a) Total cost less than $ 200
b) 1 E-13 with a one second offset
c) use parts attainable by every one
d) easy to assemble only a few surface mount parts
e) a five channel
As long as the idea is comparing the oscillators here in the
basement, there are a lot of things you can do.
As soon as the bragging rights bug cuts in, knowing that the
numbers are correct becomes an issue. With many noise measurement
issues the assumption that better is correct can serve
, 2010 7:02 AM
Subject: [time-nuts] Dual Mixer
The Dual Mixer project is nearing completion.
Let me refresh every ones memory as to my goals.
a) Total cost less than $ 200
b) 1 E-13 with a one second offset
c) use parts attainable by every one
d) easy to assemble only a few surface mount parts
e
As part of the Dual Mixer project I am looking for a source of reasonably
priced 80 MHz Xtal's in HC 49 holder. International Crystal wants $12 in
fifty Qty. In my opinion to high. Any help will be appreciated. Thanks Bert
Kehren
___
time-nuts
ewkeh...@aol.com wrote:
As part of the Dual Mixer project I am looking for a source of reasonably
priced 80 MHz Xtal's in HC 49 holder. International Crystal wants $12 in
fifty Qty. In my opinion to high. Any help will be appreciated. Thanks Bert
Kehren
How about XC1567CT-ND from
-nuts] Dual Mixer
As part of the Dual Mixer project I am looking for a source of reasonably
priced 80 MHz Xtal's in HC 49 holder. International Crystal wants $12 in
fifty Qty. In my opinion to high. Any help will be appreciated. Thanks
Bert
Kehren
A couple of months ago I did announce that I plan to build a dual Mixer
based on the NBS design with minor updates and add a counter section. All with
a cost goal of $ 200. Having all parts in house the goal has been reached
when boards get ordered in quantity ten. Thanks to inputs from
Hi Bert,
This is amazing and i hope that you can make it available for us to build
one. I am very interested.
regards,
Henk
A couple of months ago I did announce that I plan to build a dual Mixer
based on the NBS design with minor updates and add a counter section. All
with
a cost goal of
Henk, it will be available to every one the challenge will be buying in
groups, I definitely do not want to be in the mail order business. Bert
In a message dated 10/2/2009 10:11:49 A.M. Eastern Daylight Time,
h...@deriesp.demon.nl writes:
Hi Bert,
This is amazing and I hope that you
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