Anyone still running large HF multi-band quad antennas?

Discussion in 'Antennas, Feedlines, Towers & Rotors' started by W7UUU, Oct 9, 2019.

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  1. NH7RO

    NH7RO Ham Member QRZ Page

    I think you just stumbled onto something brilliant there, Dr.---makes a lot of sense, no?
     
    W7UUU likes this.
  2. UA3TW

    UA3TW Ham Member QRZ Page

    The model is a secret?
     
    N8ZI likes this.
  3. WA8UEG

    WA8UEG XML Subscriber QRZ Page

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    Had been using this one since the 70's. This is a unique design that I feel was the best ever sold, the Hy Gain Hy Quad. All aluminum spreaders broke into non resident lengths by super strong large insulators. Each leg of the 4 sides on each band is independent assuring perfect alignment and all sides of equal length. It's fed with a single feedline and has a individual gamma match for each band. Performance and durability is simply amazing.

    I kept it up to make comparisons with the LPA I purchased but removed it several months ago as I moved the whole thing to another side of the house and it was installed on a temporary basis. I added a new tower so I could stack antennas, it has a LPA, wide spaced 6 element 6 meter beam and a 14 element 2 meter above that. The tower also supports a 160/80/60 & 40 1/2 wave dipoles. The LPA as the advantage of 30, 17 & 12 meters ( although the Quad worked well on 17 & 12 with my MFJ-998 auto tuner). Of course the real advantage of a tower that does not rotate and a beam is the ability to stack antennas above it and attach dipoles to the tower. Performance wise the quad is much better.

    I also had a homebrewd a 6 meter quad that worked very well, not as well as the wide spaced beam but it's up 65' and in the clear versus the quad which was only at 30' and was surrounded by tall trees. Both sit at the apex of a 2'000 mountain so that helps..........ALOT!

    [​IMG]
     
    KA0HCP, N8ZI and AB6RF like this.
  4. K8JD

    K8JD Ham Member QRZ Page

    My QUAD Summer
    I got a New Hamshire Antenna Prods (?) fullsized triband QUAD from a friend who did want to put it up.
    It was an optimum spacing design that had the support arms that met in the center so the three elements were all the same wavelength fraction spacing.
    got it up on a 20 ft mAST on the garage roof. I had no rotator so I aimed it at Europe. My NCX3 only went up to 20 M so I could not use it on 15 0r 10 M.
    I worked a lot of DX on 20 M SSB back then and had a blast for a few weeks, .....along comes a summer thunderstorm and blew it off the garage.
    I untangled the wires and got the Quad back up with sturdier pipe and went back to DXing !
    So, two weeks later a worse storm blew it down again! replaced it it with a roof mounted 20 M GP made from scrap aluminum masts. That stayed up until i left the City ! Still worked some DX but S5 instead of S9 reports :D
     
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  5. K0UO

    K0UO Subscriber QRZ Page

    Hi run large loops but they're called Rhombic's
     
    W7UUU likes this.
  6. AC6LA

    AC6LA Ham Member QRZ Page

    N8ZI likes this.
  7. N8ZI

    N8ZI XML Subscriber QRZ Page

    Yes Terry has some monster sized quads emitting HUGE signals, better than guys with stacked mono banders, SteppIR's or a Mosley Pro 96.
    You could run barefoot and still have a better signal than QRO operators.
    Oh, BTW....... He resides in Michigan not too far from me. You know Michigan, the winter wonderland of ice, snow and blizzards. The summers of high heat, hurricane winds And tornadoes. And people think quads can't handle ice and high winds ha ha ha.
    I guess they are still living in the past using bamboo spreaders.
     
    NH7RO likes this.
  8. N0RU

    N0RU Ham Member QRZ Page

    Quad_2011_014.JPG
    Bought this quad and tower several years ago and still planning to install it. 30 foot boom, 20-6 meters and a whopper to take down. Unsure if it will survive my hill top location, but willing to give it a try. Spreader supports from Cubex, spreaders from Max gain and home brew boom to mast plate. UV damaged the spreaders but no cracks...just sand and repaint.
    73, Robb NØRU
     
    N8ZI likes this.
  9. N8ZI

    N8ZI XML Subscriber QRZ Page

    Awesome antenna!!
    To me, quads are the centerfold for antenna porn magazines :)
    Double cast hubs from Cubex are very tough. Just double wall the first spreader at the hub and use a lateral wind kit to survive windy locations. Talk to the guys at Cubex. They will instruct you how to make it hurricane proof.
    You guys need HD digital photos so i can blow them up to poster size and plaster my shack walls with them!
     
  10. W7UUU

    W7UUU Super Moderator Lifetime Member 133 Administrator Volunteer Moderator Platinum Subscriber Life Member QRZ Page

    That's very close to my memories of the "beast" Quad that I knew back then, that started me wondering....

    It was HUGE! Such a complexity of delicate wiring so high in the air - I was very impressed at the time but very intimidated in my current world at the prospect of putting one up

    I'm sticking with my TA-33MW :)

    Dave
    W7UUU
     

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