A quick check with a multimeter showed that the vna only took about 200ma from its 5 v supply. Having made the vna communicate over the usb bus my thoughts turned to powering it from the bus. The new vna pcb with usb support meets these demanding requirements. A design is presented by n2pk in his documentation which has both quality and protection. This allows you to generate two sine waves of the same frequency, and set the phase offset between the two signals. Paul kiciak, n2pk, has produced a very elegant vector network analyser. Paul together with wayne torrey also own the design for the digital filter used for the harmonic mode filtering ivan makarov ve3ivm similarly needs to be thanked for his suggestions, testing. The n2pk is good to 60 mhz but then it quickly rolls off. My vna is equipped with bnc connectors so i used clamp type male bnc connectors for large diameter coaxial cable such as lmr 400 rg8 to house my calibration standards. Vnaview is a fullfeatured vna application including calibration management, linear and log scanning, analysis and graphing of many computed parameters, smith chart, rlc network fitting, and exporting data to tabdelimited text files. Hamvna presented on this page is an alternative to that program. Ig minivna is a free program designed to work with the minivna pro bt antenna analyzer device.
You can find n2pks project page for this instrument here. Parallel ports are becoming less common in portable computers which are often used to host the n2pk vna software, and usb type interfaces now dominate. This allows an interface to be written to other vna hardware so that it can be controlled by myvna. Antenna analyzers products category is a curation of 17 web resources on, how to choose an antenna analyzer, pocketvna portable vector network analyzer, nanovna. It allows connecting to a high speed usb port on pc instead the parallel port, powering at the same time the vna, plug and play feature. Together with your pclaptop, you can add to your laboratory the further advantages of having this firstclass vna instrument. The one im building was conceived by paul kiciak, n2pk. The information is useful for those interested in constructing and working with the n2pk vna, but is also useful to all vna users, since an understanding of how a vna could function accelerates ones understanding of how to use any vna. This package will also enable the n2pk software to work on these platforms. The n2pk approach to vna design commercial instruments work with a superhet based architecture.
The english software house spectrum software shut down on july 4 th, 2019. There are also instructions how to load the drivers. The v5 pcb is the result of logical development of the project and trends in the computer industry. You can buy the author a beer to support the further development of vna j. Paul kiciak, n2pk has produced a most excellent vector network analyser to go with it, i have produced a usb interface and a gui for windows myvna, but the n2pk is a group effort. Clicking save data opens a dialog box to allow you to save the measurement results as a. My implementation of n2pk vector network analyzer project 60khz to 60mhz vector network analyzer. The n2pk web site was shut down in april 2020 and all information was transferred to this site in a form of browsable archive on behalf and with permission of the owner, paul kiciak, n2pk. As most newer laptops do not have a parallel port on them i decided to explore running it off the usb port. Hello ive looked at all the above vna s they are quite nice.
The swr meters software is licensed and these downloads are 10 minute demo copies. Using a bridge i still have to build mine, you can also check antennas, something im looking forward to measure. Ive used the tool to check antenna vswrs across the whole operating range in the field and it it never has a miss. The sparameter file was produced on a home built n2pk vna using myvna software.
First, above all, to paul kiciak, n2pk, for producing a most excellent vna design and for help, encouragement, algorithms and advice. In addition, the n2pk vna as described primarily in part 2 of the vna documentation will be required and additional hardware, as needed, such as impedance bridges, dds buffer, detector preamp, etc. Kit will be sent in safe envelope as registered priority shipment along with schematics etc. Acom 600 acom 2000 acom director downloads amateur radio antennas band pass filters bluetooth cms contesting dxpedition electronics fair isle gps homebrew iota m0yom ms0oxe n2pk vna personal projects raspberry pi software development station build stub filters ts990s web development windows 10. Compatible with vna j of dl2sba, this software runs on win,mac,linux. Power can be applied at that point, and there should be no smoke or overheating. This part contains the schematic, pcb, construction, support circuits, and acknowledgements.
Note that if you want to use the usb interface with exeter, you will need to replace vnaccess. It gives you the ability to directly measure all of the key parameters of twoport networks, such as gain and return loss. This year however i decided it was time to begin getting. Hes a very talented rf engineer and has given the amateur community an amazing new capability. If you have not heard about n2pk vna before, i recommend you to read through the set of comprehensive materials available from paul n2pk s web site archive hosted on this site. Here you can download all relevant files for vna j application. Hf vector network analyzer theory of operation element14. At one moment i was almost ready to start building the n2pk one. Read about element14 hf vector network analyzer performance on. The house is very much a project house so most of last year was spent working on the property. You can find n2pk s project page for this instrument here.
I recently picked up an unbuilt n2pk vna kit and am wondering if it is. Here you will find details on how to build a usb interface to work with the vna. I thought that it would be useful for antenna measurements and wanted to run it with a laptop pc. In order to achieve and preserve accuracy, a high quality supply should be used. It encapsulates all of the details concerning the clocking of the chips through the parallel port printer interface. It describes the construction of a module as an alternative to commercial units.
You can buy the author a beer to support the further development of vnaj. The minivna pro, the big brother of the wellknown minivna, is an extraordinary and unique handheld vector network analyzer that makes available a multitude of features and capabilities which are perfect for checking antennas and rf circuits for hams and commercial users. Ig minivna is a free program designed to work with the mini vna pro bt antenna analyzer device. Idc marketscape names bridgehead a leader in the aica vna market golden bridge in ba na hills, vietnam global times cheap chinese vna up to 6ghz. Details on dave wb6dhws hsusb module is also given. Part 3 will deal with the software, general usage, and narrowband extensions to vhf and uhf. N2pk vna m0yom amateur radio operator, software engineer. On the pictures below you can see my test rig which consists of the usb board and n2pk vna with. These programs do not replace the original n2pk software, available from n2pk s web site.
Will it work if i make a board with 1 ad9851 n2pk then split the signal and use 2 amps as buffers that will provide a reference. Pc boards are available, including windows software developed by ian g3sek. N2pk vna not your dads grid dip meter the story of my implementation of the n2pk vna. Vna4win windows software for the n2pk vna by gm4pmk and gm3sek more info forum after at least one sweep has been completed, the save data button will appear when the sweep is stopped. Oct 03, 2010 simulation in rfsim99 of a touchstone s2p sparameter file for a itt 10.
Paul kiciak, n2pk says on his website about his vector network analyzer. On the pictures below you can see my test rig which consists of the usb board and n2pk vna with parallel interface. Note that only the port a file format is supported. Spectrum software developed since 1981 the wellknown simulation environment microcap, whose latest and last release is no. At the heart of the vna is a dual dds direct digital synthesis, a digital sinewave generator, clocked with the same oscillator. This allows you to generate two sine waves of the same frequency, and set the phase offset between the two signals yourself. That is all you need to build a really powerful n2pk vna based on ivans v5. In particular, with the addtion of a simple reflection bridge, it becomes a vector network analyzer, a powerful tool for analyzing the antenna systems and radio circuits. An unofficial modification to the venerable n2pk vna.
The fast adc and 2nd vna detector are part of a larger plan to implement an expanded n2pk vna which would have two receivers detectors and a fullfeatured sparameter test set. Usb powering of the n2pk vna i recently had a n2pk vna built up and found it a useful tool. Compatible with vnaj of dl2sba, this software runs on win,mac,linux. N2pk has better accuracy but only hf range, vna2180 stands out in its robustness, the stronger rf output with surge arresters, easy to calibrate and user friendly software. Shows how rfsim99 is used to design the matching circuits for the filter. Note that if you want to use the usb interface with exeter, you will need. Also refer to the vna documents parts 1 and 2 for vna. To go with it, i have produced a usb interface and a gui for windows myvna, but the n2pk is a group effort. I recently picked up an unbuilt n2pk vna kit and am wondering if it is worth building because it has a.
Home n2pk vna usb interface exeter dll myvna noise meter. Hello ive looked at all the above vnas they are quite nice. This vna requires an ibm compatible pc and uses custom software. This is the second part of a threepart article that describes a homebrew vector network analyzer vna for transmission and reflection measurements from 0. Ivans new pcb for the n2pk and his transverter design plus software and other goodies.
The n2pk approach to vna design commercial instruments work with a superhet based architecture n2pk uses a direct conversion approach depends on direct digital synthesis of test signals and accurate phase detection. He has made a wonderful contribution to home experimenters with this excellent circuit design. The board comes with hermes vna software that implements the basic functions of data collection and display. Vna4win windows software for the n2pk vna by gm4pmk and gm3sek. It is recommended that it be printed for quick reference to the programs and their features. Vna4win a virtual front panel application or the n2pk by gm3sek and gm4pmk. Vna hans van ingelgom where software and hardware meet. I dont need lab grade gear, at least for now its just a hobby mostly some basic stuff that will help me learning. I used a hartley oscillator with a 100 pf capacitor. No other sex tube is more popular and features more vna network scenes than pornhub. After having been off air for a number of years due to an impending house move, i finally moved to my new location last summer. Discover the growing collection of high quality most relevant xxx movies and clips. Click the desired software s title to download all the nnnn pc vision software is fully operational and free to download.
Compatible with vnaj of dl2sba, this software runs on win,mac,linux download vnaj dl2sba website download vnaj user manual. Dave gave stepby step instructions how to use his usb configuration utility to program the eeprom for operation as an n2pk vna usb interface. A vna is a test system that enables the rf performance of radio frequency and microwave devices to be characterised in terms of network scattering parameters, or s parameters the diagram shows the essential parts of a typical 2port vector network analyzer vna. To make them fully operational requires a user name and password. Here are some notes on the calibration standards for the n2pk vna. In the stock configuration, the n2pk will deliver typical dynamic range figures of about 120db over the 60 mhz frequency range. Vna2180 vector network analyzer by w5big on the menu bar select file save port a graph. I usually run my own application software on my trusty macbook. Part 3 will describe additional hardware to extend the 0. This document describes a hardware module for connecting the n2pk vna to a usb port of a pc. They are part of the vna build info available on the n2pk web site the basic plan is to first install all of the passive components on the bottom of the board, then install all of the passive components on the top of the board. I can already set the frequency and phase of the two frequency generators, and i can read out the adc. This is a poor wrapper for all of the vna accuracy, and flexibility, but it was easy to do.
For more information, check out the yahoo group page. This page is about my implementation of the n2pk vector network analyzer. The n2pk vna archive also has information how to subscribe to n2pk vna mailing list, so that you could learn from and exchange information with others about. For the ft2000 filters project, i needed vna functionality in the 70 mhz range. Browse through our impressive selection of porn videos in hd quality on any device you own. This page is about my implementation of the n2pk vector network analyzer vna, which is a lab quality instrument designed by paul kiciak, n2pk. The included software provides full control over the measurements, settings, data storage and reporting. This is a homebrew vna capable of both transmission and reflection. A library of calls which provide an api applications programming interface for communicating with the vna. Paul kiciak, n2pk has produced a most excellent vector network analyser.
For technical questions, the builder needs to ask on the primary n2pk vna yahoo mailing list. Not only learning how to measure things using the wonderful vna tutorials of pa4tim, but also how it works internally, and how i can control it from an arduino. Part 1 described some measurement examples, theory of operation, and a performance summary. Software download our updated software for our vna, tdr, or swr meters. General control of the vna, including reflection, transmission, and other common measurements. The swr meters software is licensed and these downloads are. This document describes the performance of a diy vector network analyzer known as the n2pk vna. Because of this after some advice from bob 5b4agn i will be embarking on building one of these its an n2pk vna, a very accurate vna, i suspect i will be unable to beat. The design described here is known as the n2pk vna implementation. Although the exposed interface is written in terms of the hardware registers.
The aim is to do this while still providing software support of back level hardware wherever possible. Dosbased programs from paul n2pk can not work with the v5 board because they use parallel port type of interface which is not supported by the v5 board. You can screen shot of the program and make comments. The software has that option so that makes it easy. All n2pk vna software that supports usb will work with the v5. This series of blog posts describes what you can use. There is a yahoo group for the vna membership required. For the n2pk, both usb and parallel are supported, for the msa only usb is available. Milf performer hotwiferio is the top vnalive girl for the month of november, as voted by fans of vicky vettes. You can calivrate the device using openshortload for accurate results, you can set up the frequency range, define the bandwidth and choose the plotter mode. One of the most desirable instruments in the rf engineers arsenal is a vector network analyzer. For more information, check out the yahoo group page you can get a feel for myvna from the manual. To first find out what measurements a vna can perform as a black box connected to a deviceundertest dut, see hf vector network analyzer some measurement examples.