The way the 8410 was automated HP built an add on DAC module to convert the
plotter outputs to digital form and used an 8350 sweeper to replace the BWO
sweepers commonly used by 8410 systems and a relay controller to do the test
set switching
They called this rig the 'Automatic Network
Thanks
On Wed, Jun 4, 2014 at 7:29 AM, Scott McGrath scmcgr...@gmail.com wrote:
The way the 8410 was automated HP built an add on DAC module to convert
the plotter outputs to digital form and used an 8350 sweeper to replace the
BWO sweepers commonly used by 8410 systems and a relay
The 8410 is what I started on. Still have the hp 85 automation manuals program
listings and tapes.And the hp ad converter used to convert plotter output
lines to GPIB readable data
the 8410 allowed one to really UNDERSTAND the network analysis process at a
very basic level. If you can
On 3 June 2014 16:54, Scott McGrath scmcgr...@gmail.com wrote:
Where are the software options for the 8753 coming from. Agilent will not
even talk about a VNA that's older than the PNA series
This has been discussed on the HP/Agilent mailing list. Basically a
couple of people that work at
Boy this is not time-nuts and I had been deleting the thread. No problem
with the thread. Just I have HP VNAs. Yes including what caught my eye the
8410 that Scott spoke of and its still operational. Heavy as heck like real
equipment should be.
I am curious I sort of thought the 8410 was pre micro
On 3 June 2014 19:22, paul swed paulsw...@gmail.com wrote:
Great comment by Dave on the fact that someone
will give out some of the old options. Now I have to figure out what on
earth that might actually mean.
Regards
Paul
WB8TSL
There are a few options for those VNAs. These are basically
My bad the 8757 is only a scalar not a vna like the 8410 and 8505. Thought
I went astray and had to go look after you mentioned the options.
Regards
Paul.
WB8TSL
On Tue, Jun 3, 2014 at 3:32 PM, Dr. David Kirkby drkir...@gmail.com wrote:
On 3 June 2014 19:22, paul swed paulsw...@gmail.com
Hi,
I know this is not exactly a time-nut question, but i guess this is
the best place i know to ask about this stuff.
I recently got introduced into the usefullness of a VNA. But these
things are horribly expensive for home use, even if bought from ebay
(before you say anything, remember i live
[mailto:time-nuts-boun...@febo.com] On Behalf
Of Attila Kinali
Sent: June-02-14 10:43 AM
To: time-nuts@febo.com
Subject: [time-nuts] VNA design
Hi,
I know this is not exactly a time-nut question, but i guess this is the best
place i know to ask about this stuff.
I recently got introduced
Attila
You might want to look at the N2PK and DG8SAQ vector network analyzer projects
there are also some commercial USB based 'personal' network analyzers out there
starting about 6K
As for directional couplers. I would suggest buying vs building Mini Circuits
has a line of high quality
Today you can do most of the processing in software. All you need is A/D
and D/A converters that can handle the required bandwidth and get the raw
numbers into the computer. Look up SDR type radios and search on the
combination of SDR and VNA and you'll find a few. Then with the same
There's a DIY project to build a spectrum analyzer at
http://scottyspectrumanalyzer.com . Since it's modular, one version of
the project is to add a couple of modules that change it into a network
analyzer.
If you search ebay for directional couplers, I can almost guarantee that
you will
On 6/2/2014 7:43 AM, Attila Kinali wrote:
Also, any good resource on how to build a directional coupler that
does 10-3000MHz without going to exotic materials would be much
I once had the opportunity to discuss directional couplers with
Julius Botka, then with HP/Agilent. Specifically, a
On Mon, 2 Jun 2014 11:09:55 -0400
Scott McGrath scmcgr...@gmail.com wrote:
You might want to look at the N2PK and DG8SAQ vector network analyzer
projects there are also some commercial USB based 'personal' network
analyzers out there starting about 6K
I've seen both and looked at their
The design of an VNA is an interesting thing. It requires quite high focus
on good RF practices and screening.
In the range 0-3GHz there is no low cost devices avaible, not counting the
copper mountain tech boxes ( http://www.coppermountaintech.com/ ). Up to
1.3GHz there is the DG8SAQ VNWA
On Mon, 02 Jun 2014 09:46:38 -0600
Ed Palmer ed_pal...@sasktel.net wrote:
There's a DIY project to build a spectrum analyzer at
http://scottyspectrumanalyzer.com . Since it's modular, one version of
the project is to add a couple of modules that change it into a network
analyzer.
That
On Mon, 2 Jun 2014 09:01:37 -0700
Chris Albertson albertson.ch...@gmail.com wrote:
Today you can do most of the processing in software. All you need is A/D
and D/A converters that can handle the required bandwidth and get the raw
numbers into the computer. Look up SDR type radios and search
On 2 Jun 2014 15:50, Attila Kinali att...@kinali.ch wrote:
I recently got introduced into the usefullness of a VNA. But these
things are horribly expensive for home use, even if bought from ebay
(before you say anything, remember i live in europe, where every
boat anchor hast to travel a long
On Mon, 02 Jun 2014 09:35:41 -0700
Richard (Rick) Karlquist rich...@karlquist.com wrote:
Julius said that he designed it before
the era of cheap calibration. Now that everyone has calibration,
you don't need a good directional coupler. You can get away
with a MiniCircuits coupler.
How
On 2 Jun 2014 17:33, Ed Palmer ed_pal...@sasktel.net wrote:
There's a DIY project to build a spectrum analyzer at
http://scottyspectrumanalyzer.com . Since it's modular, one version of the
project is to add a couple of modules that change it into a network
analyzer.
But I think a VNA is an
On 2 Jun 2014 18:14, Thomas S. Knutsen la3...@gmail.com wrote:
The design of an VNA is an interesting thing. It requires quite high focus
on good RF practices and screening.
In the range 0-3GHz there is no low cost devices avaible, not counting the
copper mountain tech boxes (
One which is, IMHO, good value for money is this one. I've been very
pleased with mine.
http://sdr-kits.net/VNWA3_Description.html
Cheers,
David
--
SatSignal Software - Quality software written to your requirements
Web: http://www.satsignal.eu
Email: david-tay...@blueyonder.co.uk
Those interested might look at RedPitaya.com for a new piece of hardware that
might be used. Less than $500 without a box
Don
Dr. David Kirkby
On 2 Jun 2014 15:50, Attila Kinali att...@kinali.ch wrote:
I recently got introduced into the usefullness of a VNA. But these
things are horribly
Also, a convenient signal source with built-in attenuator:
http://www.rf-consultant.com/calibrated-signal-generator/
Don
Dr. David Kirkby
On 2 Jun 2014 15:50, Attila Kinali att...@kinali.ch wrote:
I recently got introduced into the usefullness of a VNA. But these
things are horribly expensive
I do not wanted to discourage any body, but building the hardware of a
network analyzer is not a simple task, and requires substantial
instrumentation, software could solve hardware problems to certain limit
only
73
KJ6UHN
On 6/2/2014 10:38 AM, Dr. David Kirkby wrote:
On 2 Jun 2014 17:33, Ed
Hi:
I started with the HP 8410 and added an external computer.
Since it can be used manually I think it's an excellent way to learn about VNAs.
http://www.prc68.com/I/MWTE.shtml#NA
It turns out that when automating a VNA the same frequency is measured many
times during cal and device testing.
On 2 Jun 2014 19:07, Alexander Pummer alex...@ieee.org wrote:
I do not wanted to discourage any body, but building the hardware of a
network analyzer is not a simple task, and requires substantial
instrumentation, software could solve hardware problems to certain limit
only
73
KJ6UHN
VERY
On 6/2/2014 12:41 PM, Brooke Clarke wrote:
Hi:
I started with the HP 8410 and added an external computer.
Since it can be used manually I think it's an excellent way to learn
about VNAs.
http://www.prc68.com/I/MWTE.shtml#NA
For my last 8 years at Agilent before retiring in March, I
was doing
Although I used to work for one of the competitor, I still do have a
complete working 8410, Rick is right, it is a very nice teaching tool
73
KJ6UHN
On 6/2/2014 2:36 PM, Richard (Rick) Karlquist wrote:
On 6/2/2014 12:41 PM, Brooke Clarke wrote:
Hi:
I started with the HP 8410 and added an
this summer.
Bill Reed ree...@otelco.net
-Original Message-
From: Alexander Pummer
Sent: Monday, June 02, 2014 5:18 PM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] VNA design
Although I used to work for one of the competitor, I still do have
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