HF Antenna Analyzers

Discussion in 'Ham Radio, SDR & Police Scanner Technology' started by Corrado, Nov 29, 2017.

  1. Corrado

    Corrado Topic Starter SatelliteGuys Pro

    Joined:
    Apr 2, 2007
    Posts:
    2,280
    Likes Received:
    147
    Location:
    Hudson Valley Region, NY
    I take pride in having nice tools and have been thinking about the purchase of a antenna analyzer for HF.

    I'm curious what others have been using. Originally, I thought about the MFJ249C but the RigExpert AA-55 Zoom is looking interesting after reading the Nov QST review.
     
  2. Titanium

    Titanium AI6US
    Lifetime Supporter

    Joined:
    May 23, 2013
    Posts:
    5,300
    Likes Received:
    4,452
    Location:
    Meadow Vista, Northern California
    I purchased a mini60 with Bluetooth option. Small device and can't beat the great price at just over $100. Have used the club's RigExpert and MFJ analyzers and really liked the feedline analyzing functions, but just couldn't justify the higher cost vs the limited usage for my own personal own unit.

    The mini60 BT can be used as a stand alone device or advanced charting with an Android device or PC connection. Cool to watch in real-time via BT connection to a tablet 50 ft away from the feedpoint while trimming the feedline, placing clip-on ferrites, optimizing elements and changing height and angles of dipoles, etc. :)
    [​IMG]
     
    jorgek, Nascarken 91xg, N6BY and 2 others like this.
  3. Corrado

    Corrado Topic Starter SatelliteGuys Pro

    Joined:
    Apr 2, 2007
    Posts:
    2,280
    Likes Received:
    147
    Location:
    Hudson Valley Region, NY
    Brian,
    What sort of calibration modes does the Mini60 offer? Open, short, load ? Is it possible to extend the measurement interface to the measurement point such as the feed point of the antenna?

    The BT option would be great for measuring feed point of the antenna remotely to analyze impedance without the effect of an added transmission line.
     
  4. KE4EST

    KE4EST SatelliteGuys Is My Second Home
    Staff Member HERE TO HELP YOU!

    Joined:
    Aug 9, 2004
    Posts:
    23,574
    Likes Received:
    3,934
    Location:
    EM75xb
    You could also make your own like I did. Then you could add all the features you want. ;)

     
    N6BY and Titanium like this.
  5. KE4EST

    KE4EST SatelliteGuys Is My Second Home
    Staff Member HERE TO HELP YOU!

    Joined:
    Aug 9, 2004
    Posts:
    23,574
    Likes Received:
    3,934
    Location:
    EM75xb
    Interesting that this thread just came up as I just started work on an improved version.
     
    Titanium likes this.
  6. harshness

    harshness SatelliteGuys Master

    Joined:
    May 5, 2007
    Posts:
    13,171
    Likes Received:
    1,195
    Location:
    Salem, OR
    An Android app and communicating with it via Bluetooth probably isn't trivial. Set it up with Alternate Reality and you could have a Heads-Up Display whisker trimming experience.

    The 9Hz refresh suggests something more powerful than an Arduino.
     
    N6BY likes this.
  7. KE4EST

    KE4EST SatelliteGuys Is My Second Home
    Staff Member HERE TO HELP YOU!

    Joined:
    Aug 9, 2004
    Posts:
    23,574
    Likes Received:
    3,934
    Location:
    EM75xb
    That unit uses the same DDS board as the one I made.
    I have another DDS board here that goes up to 160+ MHz I have been testing.
     
    Titanium likes this.
  8. Titanium

    Titanium AI6US
    Lifetime Supporter

    Joined:
    May 23, 2013
    Posts:
    5,300
    Likes Received:
    4,452
    Location:
    Meadow Vista, Northern California
    The calibration has open, short and loads.

    It measures only at the insertion point. I do like the RigExpert feedline adjustment feature.

    IMG_5695.JPG
     
  9. Corrado

    Corrado Topic Starter SatelliteGuys Pro

    Joined:
    Apr 2, 2007
    Posts:
    2,280
    Likes Received:
    147
    Location:
    Hudson Valley Region, NY
    The decision has been made, I have a Mini60 on the way. Thanks Brian for your time and review.
     
    Titanium and KE4EST like this.
  10. Titanium

    Titanium AI6US
    Lifetime Supporter

    Joined:
    May 23, 2013
    Posts:
    5,300
    Likes Received:
    4,452
    Location:
    Meadow Vista, Northern California
    Did you order standard mini60 or with Bluetooth?

    If using the charting function with connection to a PC, you will need Excel. OpenOffoce is not compatible. I purchased a NOS MS Office 2007 with single license on EBay for $10. :)
     
  11. Corrado

    Corrado Topic Starter SatelliteGuys Pro

    Joined:
    Apr 2, 2007
    Posts:
    2,280
    Likes Received:
    147
    Location:
    Hudson Valley Region, NY
    I received my meter Saturday and I love it. It's quite the little device, not oversized and heavy like some of the other well known meters I've handled.

    I didn't go for the BT option at this time since I have an iPad. After thinking about it, I thought it would spend most of it's time in the shack on the bench anyway on the inside end of the feed line.
     
    Titanium likes this.

***

Separate names with a comma.

More...