1. You can now help support WorldwideDX when you shop on Amazon at no additional cost to you! Simply follow this Shop on Amazon link first and a portion of any purchase is sent to WorldwideDX to help with site costs.
    Dismiss Notice
Dismiss Notice
This forum does not allow a single user to have more than one username. If anyone wants to change their username contact an admin and it will be done. Multiple accounts belonging to the same member will be deleted without warning.

m-400 starduster

Discussion in 'CB Antennas' started by my2995dx, Mar 26, 2017.

  1. wavrider

    wavrider W9WDX Amateur Radio Club Member

    Joined:
    Jun 2, 2009
    Messages:
    3,342
    Likes Received:
    1,159
    Welcome to the forum.



    I am using an old original starduster and built another on to use both work great and I sure like the simplicity of the design.
     

  2. Alan Blackmon

    Alan Blackmon Well-Known Member

    Joined:
    Apr 11, 2017
    Messages:
    177
    Likes Received:
    233
    Hi wavrider. I agree the design is just so easy to replicate. I like this antenna better than many of the fiberglass alternatives available today.
     
  3. Rick330man

    Rick330man WDX 404

    Joined:
    Mar 16, 2013
    Messages:
    596
    Likes Received:
    730
    I'm using a similar design. Workman sells what they call a 6Hub. It is a hub for a Starduster type antenna. You stick a 102" as a vertical radiator and then screw 3 downward sloping 102" whips for the counterpoise. The hub screws right onto standard plumbing pipe.

    I wanted a decent base antenna that did not depend on coils, trombones or anything else to stay in tune. This nice, simple, quarter wave, true and tested Marconi design fits the bill.
     
  4. Alan Blackmon

    Alan Blackmon Well-Known Member

    Joined:
    Apr 11, 2017
    Messages:
    177
    Likes Received:
    233
    I agree Rick330man. Your description of the 6Hub describes my design. One quarter wave vertical with 3 sloping counterpoise made from the ground planes of the penetrator antenna I modified. Bending them was a bit of a challenge without breaking the aluminum rods. Got it done though. The slope is a bit more than 45 degrees. I will have to measure it some day. Meanwhile it is a mean talker.
     
  5. jon666

    jon666 Sr. Member

    Joined:
    Jan 24, 2006
    Messages:
    1,601
    Likes Received:
    775
    best antenna i have ever used.
    wish i still had mine
     
  6. Mopower71

    Mopower71 Well-Known Member

    Joined:
    Jan 25, 2020
    Messages:
    101
    Likes Received:
    138
    Do you know where the "Workman 6hub" can be purchased now?
    Yes I know it's an old post
     
  7. Rick330man

    Rick330man WDX 404

    Joined:
    Mar 16, 2013
    Messages:
    596
    Likes Received:
    730
    I purchased four of the Workman 6Hubs from:

    Eagle1com.com

    I don't know if they are still around.

    My Starduster style base using the hub is currently up and working well.

    My SWRs are a little better when I use a fiberglass 102" whip for the vertical radiator. For the downward sloping counterpoise radials, three of the old Radio Shack stainless steel 102" whips are seeing duty. My SWR is lowest in the middle of the CB band at just over 1.2:1. My SWR on channel 40 is running around 1.38:1. At channel 1, it is around 1.28:1.

    It works!

    Good luck.
     
    #22 Rick330man, Mar 17, 2020
    Last edited: Mar 17, 2020
    Shadetree Mechanic likes this.
  8. Alan Blackmon

    Alan Blackmon Well-Known Member

    Joined:
    Apr 11, 2017
    Messages:
    177
    Likes Received:
    233
    I have made several new varientions of the starduster. My XYL didn't like the view of the antenna up on our patio awning. It was pretty obvious and big. I have moved to a design that is made of wire inside a PVC pipe with two radials sloping down from the feed point. The PVC has a hanger at the top to hang from a tree branch. The radials are pulled out and attached to the fence below the tree. With leaves which are popping out now the antenna will disappear. Working pretty good at this time. Worked some skip from Boise into S. Cal and Arizona on 38 lower. MFJ antenna analyzer has it running good SWR clear up to 28.450.
     
  9. Mopower71

    Mopower71 Well-Known Member

    Joined:
    Jan 25, 2020
    Messages:
    101
    Likes Received:
    138
    Thanks.
    I can't find eagle one or a place to buy the hub
     
  10. Marconi

    Marconi Usually if I can hear em' I can talk to em'.

    Joined:
    Oct 23, 2005
    Messages:
    6,649
    Likes Received:
    1,676
    Mopower71, if you can find 4 x 102" stainless steel whips you can make a SD type ground plane. You will need a hub from an A99 GP kit and a mobile mirror mount.

    See example in the PDF file below.
     

    Attached Files:

    Mopower71 and Shadetree Mechanic like this.
  11. Rick330man

    Rick330man WDX 404

    Joined:
    Mar 16, 2013
    Messages:
    596
    Likes Received:
    730
    Or just make a simple dipole.

    (1) Install a mirror mount at the tip of a 102" long piece of 3/4" plumbing pipe. (2) Screw a 102" whip into the 3/8" X 24 female end of the mirror mount. (3) Install your coax.

    This simple dipole set up should give you about a 1.5:1 SWR.
     
  12. Staybolt

    Staybolt Well-Known Member

    Joined:
    Mar 20, 2013
    Messages:
    674
    Likes Received:
    207
    I have a 1975 as version. Its okay but has almost no gain. A 58 wave will bury it.
     
    Shadetree Mechanic and Tokin like this.
  13. Tokin

    Tokin 42Zero Tampa

    Joined:
    Oct 31, 2019
    Messages:
    1,362
    Likes Received:
    2,295
    Screenshot_20200324-205817.png An original AS M400 hub sold for $15 sunday on ebay. I almost bought it but I really dont need it. I have a complete 70's AS M400 in my shack but I like this maco.
     
  14. Rick330man

    Rick330man WDX 404

    Joined:
    Mar 16, 2013
    Messages:
    596
    Likes Received:
    730
    Since your last post and my last post on this subject, I've done a bunch of internet searches to see if I can help you locate one of these. They are nowhere to be found. I've looked at Amazon, E-bay, various amateur radio stores, radio supply sources, etc.

    Sorry I could not be of more help.
     
  15. Tokin

    Tokin 42Zero Tampa

    Joined:
    Oct 31, 2019
    Messages:
    1,362
    Likes Received:
    2,295
    Whats funny is AS boasted a 5db gain on their box lol.
    A plus to the m400 is you can dump as many watts as you want into them.
    They were great for local fun but I preferred the astroplane for dx. That was back when you could drive thru the country and find them still mounted to a barn and could be bought for $20 if you took it down.
     
    Shadetree Mechanic likes this.

Share This Page

  • About Us

    The WorldwideDX Radio Forum was originally established in 2001. We pride ourselves on welcoming Radio Hobby enthusiasts of all types, while offering unbiased, informative, and friendly discussion among the members. We are working every day to make sure our community is the best Radio Hobbyist's site.
  • Like us on Facebook

  • Premium VIP Member

    The management works very hard to make sure the community is running the best software, best designs, and all the other bells and whistles. Care to buy us a beer? We'd really appreciate it!

    Donate to us!