Subject: Re: [time-nuts] Best phase detector / mixer for 100MHz?
Support HpW-Works.com wrote:
Bruce,
There's no evidence of a cross power spectrum function in this suite.
One needs to be able to average at least 10,000 cross power spectra
for some applications.
In the PSD (power
At 03:56 PM 11/29/2012 +, you wrote:
By theory, yes... but we use a sound card with a lot of flicker noise
on the lower
end, also we have the 10...20Hz low freq. cutoff due the usage of a
servo / single
5V power. Also the raising noise below 100Hz (ADC serve noise on the
ADC power /
Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
Behalf
Of Bill Fuqua
Sent: Donnerstag, 29. November 2012 18:02
To: time-nuts@febo.com
Subject: Re: [time-nuts] Best phase detector / mixer for 100MHz?
At 03:56 PM 11/29/2012 +, you wrote:
By theory
measurement
Subject: Re: [time-nuts] Best phase detector / mixer for 100MHz?
Support HpW-Works.com wrote:
Bruce,
There's no evidence of a cross power spectrum function in this suite.
One needs to be able to average at least 10,000 cross power spectra
for some applications.
In the PSD
Support HpW-Works.com wrote:
Hi Bruce,
The equivalent phase noise (measured in dBc/Hz) is essentially independent of
the sample size.
The dBc/Hz normalization is based on this (also the sample rate). While the
sample
rate sample size = FFT Bin size (resolution or filter band
Demian Martin wrote:
I asked Wenzel about mixers for phase noise measurement and they directed me
to Marki Microwave as what they use:
http://www.markimicrowave.com/2770/Mixers.aspx I have not obtained or
tested any myself but it's a pretty solid recommendation I think.
I got this guy to add
Bruce Griffiths schrieb:
Richard (Rick) Karlquist wrote:
On 11/23/2012 9:38 AM, Bruce Griffiths wrote:
NIST have shown (at least at 10MHz) that the high level mixers they
tested are noisier than the ZRPD1.
Bruce
Do you have a citation to where they said that?
What you quoted doesn't make
Bruce Griffiths schrieb:
Demian Martin wrote:
I asked Wenzel about mixers for phase noise measurement and they
directed me
to Marki Microwave as what they use:
http://www.markimicrowave.com/2770/Mixers.aspx I have not obtained or
tested any myself but it's a pretty solid recommendation I
Adrian wrote:
Bruce Griffiths schrieb:
Demian Martin wrote:
I asked Wenzel about mixers for phase noise measurement and they
directed me
to Marki Microwave as what they use:
http://www.markimicrowave.com/2770/Mixers.aspx I have not obtained or
tested any myself but it's a pretty solid
Bruce Griffiths schrieb:
Adrian wrote:
Bruce Griffiths schrieb:
Demian Martin wrote:
I asked Wenzel about mixers for phase noise measurement and they
directed me
to Marki Microwave as what they use:
http://www.markimicrowave.com/2770/Mixers.aspx I have not obtained or
tested any myself but
Bruce,
There's no evidence of a cross power spectrum function in this suite.
One needs to be able to average at least 10,000 cross power spectra for some
applications.
In the PSD (power density) PSP (power spectrum) there are cross power and
cross
power complex average implemented
Adrian wrote:
Bruce Griffiths schrieb:
Adrian wrote:
Bruce Griffiths schrieb:
Demian Martin wrote:
I asked Wenzel about mixers for phase noise measurement and they
directed me
to Marki Microwave as what they use:
http://www.markimicrowave.com/2770/Mixers.aspx I have not
obtained or
Support HpW-Works.com wrote:
Bruce,
There's no evidence of a cross power spectrum function in this suite.
One needs to be able to average at least 10,000 cross power spectra for some
applications.
In the PSD (power density) PSP (power spectrum) there are cross power and
cross
Bruce Griffiths schrieb:
Support HpW-Works.com wrote:
Bruce,
There's no evidence of a cross power spectrum function in this suite.
One needs to be able to average at least 10,000 cross power spectra
for some
applications.
In the PSD (power density) PSP (power spectrum) there are cross
Thanks a lot guys for all the input!
The nist articles was a very interesting read. I have ordered the
minicircuits ZRPD-1 and will try to build the 2NA mixer to to see how
far that will take it. I probably also will build a low noise jfet preamp
to see if that will reduce the noise. But I
thanks Bob
Doug
From: Anders Time anderst...@gmail.com
To: time-nuts@febo.com
Sent: Monday, 26 November 2012, 9:45
Subject: Re: [time-nuts] Best phase detector / mixer for 100MHz?
Thanks a lot guys for all the input!
The nist articles was a very
Hello Anders,
I have used the Mini-Circuits ADE-1H as a combined mixer and phase comparator,
to lock a pair of Pascall OCXOFs together and give an output at twice the
frequency. With ~18-19dBm into the LO and RF ports, the output level at 2f
(from the IF port) was ~11dBm. The mixer didn't
I asked Wenzel about mixers for phase noise measurement and they directed me
to Marki Microwave as what they use:
http://www.markimicrowave.com/2770/Mixers.aspx I have not obtained or
tested any myself but it's a pretty solid recommendation I think.
I got this guy to add cross correlation to his
Anders,
On 11/26/2012 10:45 AM, Anders Time wrote:
Thanks a lot guys for all the input!
The nist articles was a very interesting read. I have ordered the
minicircuits ZRPD-1 and will try to build the 2NA mixer to to see how
far that will take it. I probably also will build a low noise jfet
Sent: Monday, November 26, 2012 2:52 PM
To: time-nuts@febo.com
Subject: Re: [time-nuts] Best phase detector / mixer for 100MHz?
Anders,
On 11/26/2012 10:45 AM, Anders Time wrote:
Thanks a lot guys for all the input!
The nist articles was a very interesting read. I have ordered the
minicircuits
On 11/26/12 10:11 AM, Demian Martin wrote:
I asked Wenzel about mixers for phase noise measurement and they directed me
to Marki Microwave as what they use:
http://www.markimicrowave.com/2770/Mixers.aspx I have not obtained or
tested any myself but it's a pretty solid recommendation I think.
Jim Lux wrote:
On 11/26/12 10:11 AM, Demian Martin wrote:
I asked Wenzel about mixers for phase noise measurement and they
directed me
to Marki Microwave as what they use:
http://www.markimicrowave.com/2770/Mixers.aspx I have not obtained or
tested any myself but it's a pretty solid
Jim Lux wrote:
On 11/26/12 10:11 AM, Demian Martin wrote:
I asked Wenzel about mixers for phase noise measurement and they
directed me
to Marki Microwave as what they use:
http://www.markimicrowave.com/2770/Mixers.aspx I have not obtained or
tested any myself but it's a pretty solid
Richard (Rick) Karlquist wrote:
On 11/23/2012 9:38 AM, Bruce Griffiths wrote:
NIST have shown (at least at 10MHz) that the high level mixers they
tested are noisier than the ZRPD1.
Bruce
Do you have a citation to where they said that?
What you quoted doesn't make sense, at least, out of
Bruce Griffiths wrote:
Richard (Rick) Karlquist wrote:
On 11/23/2012 9:38 AM, Bruce Griffiths wrote:
NIST have shown (at least at 10MHz) that the high level mixers they
tested are noisier than the ZRPD1.
Bruce
http://tf.boulder.nist.gov/general/pdf/2556.pdf
Where all the high level
Rick Karlquist wrote:
Bruce Griffiths wrote:
Richard (Rick) Karlquist wrote:
On 11/23/2012 9:38 AM, Bruce Griffiths wrote:
NIST have shown (at least at 10MHz) that the high level mixers they
tested are noisier than the ZRPD1.
Bruce
I have been using an minicircuits mixer as a phase detector for measuring
low frequency(5-10MHz) and it is usually good enough. But when I want to
measure 100MHz the sensitivity of the mixer decreases a lot, so when I want
to measure some really low noise 100MHz(Pascall -178dBc floor with 18dBm
The old Watkins Johnson M9 series was the state of the art for
stacked diode mixers. You can still get the M9E and M9H from
MaCom Technology Solutions. The M9E is better, but only if you
have the 1/2 watt! of LO drive needed. As you have done already,
it is probably possible to homebrew
Hi Anders, isn't this format exactly what is inside the high level mixers
(spec'e +17dBm) from Minicircuits?
Alan
G3NYK
- Original Message -
From: Anders Time anderst...@gmail.com
To: time-nuts@febo.com
Sent: Friday, November 23, 2012 3:42 PM
Subject: [time-nuts] Best phase detector
Time anderst...@gmail.com
To: time-nuts@febo.com
Sent: Friday, November 23, 2012 3:42 PM
Subject: [time-nuts] Best phase detector / mixer for 100MHz?
I have been using an minicircuits mixer as a phase detector for
measuring
low frequency(5-10MHz) and it is usually good enough. But when I want
On 11/23/2012 9:38 AM, Bruce Griffiths wrote:
NIST have shown (at least at 10MHz) that the high level mixers they
tested are noisier than the ZRPD1.
Bruce
Do you have a citation to where they said that?
What you quoted doesn't make sense, at least, out of context.
We need to clarify phase
- Original Message - From: Anders Time anderst...@gmail.com
To: time-nuts@febo.com
Sent: Friday, November 23, 2012 3:42 PM
Subject: [time-nuts] Best phase detector / mixer for 100MHz?
I have been using an minicircuits mixer as a phase detector for
measuring
low frequency(5-10MHz
Hi Anders,
On 11/23/2012 04:42 PM, Anders Time wrote:
I have been using an minicircuits mixer as a phase detector for measuring
low frequency(5-10MHz) and it is usually good enough. But when I want to
measure 100MHz the sensitivity of the mixer decreases a lot, so when I want
to measure some
Magnus Danielson wrote:
Hi Anders,
On 11/23/2012 04:42 PM, Anders Time wrote:
I have been using an minicircuits mixer as a phase detector for
measuring
low frequency(5-10MHz) and it is usually good enough. But when I want to
measure 100MHz the sensitivity of the mixer decreases a lot, so when
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