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Bought Sigma Venom 5/8 Silver Rod, Performance Review To Follow

Discussion in 'CB Antennas' started by Wire Weasel, Jul 12, 2019.

  1. Wire Weasel

    Wire Weasel Senior Moment

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    Okay, am finally in the new house and made an inexpensive antenna buy this week. Weather permitting will get it up tomorrow and see how it is. I posted a little while back expressing interest in the Sigma Venom High Gain model for around $74 bucks I think. I went with the Venom 5/8 Silver Rod model which is the exact same but without the 3 short radials at the bottom. This is a simple all aluminum vertical for 10~11 meters. Just a stick. Think of an Antron 99 but this is all aluminum instead of a fiberglass stick with a skinny wire inside. All-metal verticals like this should be at least somewhat more broad-banded than a wire vertical and most people say they notice better receive with metal pipe antennas over wire ones of similar antenna type.
    The construction is good. Is it as heavy-duty as a $400 Predator? .... No .... but I'm not expecting it to be.
    .
    Uber thrilled with price and Customer Service. This one without the little radials is only Screen Shot 2019-07-12 at 11.25.16 AM.png $68.70 on eBay and get this: 2 Day FedEx EXPRESS ship from England for FREE. Shipped Wednesday, delivered to my door out in the country on FedEx Express truck Friday morning. Wowzers :D The Sigma Antenna people are in England and this was from their factory eBay Seller account. Simply search eBay for Sigma Antennas.
    .
    States 19' length, 1,000 watts p.e.p. 26~28 mhz
    .
    Will Comment back after I get it up and put it through all the paces


     
    #1 Wire Weasel, Jul 12, 2019
    Last edited: Jul 13, 2019
    S&W357, Riverman, CB590 and 1 other person like this.

  2. Rick330man

    Rick330man Well-Known Member

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    I'd definitely like to hear more about this antenna and your experience with it.
     
    Wire Weasel likes this.
  3. AudioShockwav

    AudioShockwav Extraterrestrial Admin
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    Looking forward to your review.

    73
    Jeff
     
    Wire Weasel likes this.
  4. Low_Boy

    Low_Boy Well-Known Member

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    At the rate I am going yours will probably be up before my venom goes up. I have had my antenna since winter and just too much more important things to do. Basically my job LOL.
     
    Wire Weasel likes this.
  5. sp5it

    sp5it Master of puppets

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    5/8 wave without radials? LFMAO.
     
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  6. Jay Mojave

    Jay Mojave Well-Known Member

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    Hello Rick330man: The photo isn't all that great. What are the antennas dimenations and such? Can you post the assembly instructions?

    Jay in the Great Mojave Desert
     
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  7. Shadetree Mechanic

    Shadetree Mechanic 808 On The North Side of Dover

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    Maybe the coax is the radial?
     
  8. 2315 Robert

    2315 Robert Grateful

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    Sigma Venom 5/8 Wave Siver Rod CB Base Antenna

    The Sigma Venom 5/8 Wave is longer than 1/2 Wave.
    This means it will have improved performance on transmit and receive.
    Power Handling 1000watts
    Length 5.80m
    Gain 4.2db
    Impendance 50 Ohms
    Frequency 26-28Mhz

    SWR 1:1.3.1
    Mounting Pole Bracket
     
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  9. sp5it

    sp5it Master of puppets

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    Won't work that way.
    Yeee, dBd or dbi? DB here means nothing.
    Mike
     
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  10. Wire Weasel

    Wire Weasel Senior Moment

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    :LOL:
     
  11. Wire Weasel

    Wire Weasel Senior Moment

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    Got it up today after waiting out a storm. Is working as expected with my long history of various verticals and ground planes going back to 1976. 1:3 SWR across 26.800 ~ 28.800. Lower in places in-between. I agree that Sigma's math seems wonky. It is slightly longer than a1/2 wave as is longer an Antron 99. Call it an enhanced 1/2 wave End-Fed Vertical. Call it Betsy. The performance, materials and construction are satisfactory and I'd rather have this than an Antron. The price is right. Thanks to 2315 Robert above for copy/paste on the specs. Posting a full-size pic for Jay (Jay get off your goddamn phone and use a computer !! ) :LOL: Screen Shot 2019-07-12 at 11.25.16 AM.png
     
  12. mrgumby

    mrgumby W9WDX Amateur Radio Club Member

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    Looks almost like this
     

    Attached Files:

  13. Shadetree Mechanic

    Shadetree Mechanic 808 On The North Side of Dover

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    Looks like the mast is the counterpoise.
     
  14. Low_Boy

    Low_Boy Well-Known Member

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    Looks Really broad banded. How is it's preformance so far?
     
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  15. Wire Weasel

    Wire Weasel Senior Moment

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    Hi Low Boy, I commented yesterday. I'm happy with it. Although I'm in something of valley at the foot of the mountains, I was easily hearing and talking to stations 35-45 miles away with the antenna only up 20' feet off the ground with a temporary mount. Getting it up higher later.
     

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