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Fox Delta Antenna Analyzer

November 2012: My friend Gary , VE3ZGS in Carlton Place, sent me an email asking if I knew about this kit. So I checked out their web site http://products.foxdelta.com/aaz.htm, and said I have never heard of these guys but the kit sure looks interesting. Gary ended up buying 2 kits, one for himself and one for me. When the kits came in I got together with Gary at a downtown Ottawa watering hole and and I forked over some cash, about 64 dollars for the cost of the kit plus postage. I built the kit in a couple days and discovered that it worked as advertised. I will use this device in the field with my old ACER netbook computer.
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  • SWR Analyzer Project by Fox Delta: http://products.foxdelta.com/aaz.htm . This kit comes from India. No parts were missing (except for a couple screws maybe...), and all were in well labeled packages. All surface mount devices were pre-installed.

    SWR Analyzer Project by Fox Delta: http://products.foxdelta.com/aaz.htm . This kit comes from India. No parts were missing (except for a couple screws maybe...), and all were in well labeled packages. All surface mount devices were pre-installed.

  • Componant side of board. The PCB ground top and bottom is separated between the PC side and the Bridge side. Mine were shorted but I was able to fix that quite quickly by scraping the small bit of copper that was not etched at the edge of the board.The grounds are reconnected by 4 ferrites and a capacitor.

    Componant side of board. The PCB ground top and bottom is separated between the PC side and the Bridge side. Mine were shorted but I was able to fix that quite quickly by scraping the small bit of copper that was not etched at the edge of the board.The grounds are reconnected by 4 ferrites and a capacitor.

  • Untitled photo
  • Presoldered DDS chip (http://www.analog.com/static/imported-files/data_sheets/AD9850.pdf)

    Presoldered DDS chip (http://www.analog.com/static/imported-files/data_sheets/AD9850.pdf)

  • View of board showing where I needed to scrape off some copper at the edge to ensure the right and left ground foils were separated (below and to the right of the number 2 in 0912). The instructions are very clear about the requirement to check this as well as every trace, because these boards are not inspected when they come from the factory.

    View of board showing where I needed to scrape off some copper at the edge to ensure the right and left ground foils were separated (below and to the right of the number 2 in 0912). The instructions are very clear about the requirement to check this as well as every trace, because these boards are not inspected when they come from the factory.

  • Finished product being tested. In order to get the board in the box, you have to bend the BNC side of the box a little . Hmmm am I missing parts? The kit only came with 2 mounting spacers which should be installed at the USB side. The BNC installation holds up the left hand side of the board, So I think they intentionally left out the other two spacers and screws.

    Finished product being tested. In order to get the board in the box, you have to bend the BNC side of the box a little . Hmmm am I missing parts? The kit only came with 2 mounting spacers which should be installed at the USB side. The BNC installation holds up the left hand side of the board, So I think they intentionally left out the other two spacers and screws.

  • I attached the SWR analyzer to my PC and it was immediately discovered and driver was setup. I downloaded software provided by I2TZK which also discovered the device and I was ready to go. In this picture I am using an antenna tuner on a 44 foot dipole inverted Vee that is fed with window line. This SWR analyzer clearly shows the narrow 2:1 SWR bandwidth of my antenna tuner on 40 meters. When you move the mouse over the curve it provides a read of the frequency and SWR at that point of the curve. Very Nice!. When using it in generator mode (by clicking the tab) you get realtime SWR on a particular frequency so you can tune the antenna.

    I attached the SWR analyzer to my PC and it was immediately discovered and driver was setup. I downloaded software provided by I2TZK which also discovered the device and I was ready to go. In this picture I am using an antenna tuner on a 44 foot dipole inverted Vee that is fed with window line. This SWR analyzer clearly shows the narrow 2:1 SWR bandwidth of my antenna tuner on 40 meters. When you move the mouse over the curve it provides a read of the frequency and SWR at that point of the curve. Very Nice!. When using it in generator mode (by clicking the tab) you get realtime SWR on a particular frequency so you can tune the antenna.

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    SWR Analyzer Project by Fox Delta: http://products.foxdelta.com/aaz.htm . This kit comes from India. No parts were missing (except for a couple screws maybe...), and all were in well labeled packages. All surface mount devices were pre-installed.
    Componant side of board. The PCB ground top and bottom is separated between the PC side and the Bridge side. Mine were shorted but I was able to fix that quite quickly by scraping the small bit of copper that was not etched at the edge of the board.The grounds are reconnected by 4 ferrites and a capacitor.