Ultralight Ultraportable Multiband QRP ANtenna

Discussion in 'Ham Made Gear' started by N9SAB, Oct 3, 2016.

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  1. N9SAB

    N9SAB Ham Member QRZ Page

    A Highly Portable, Ultralight Multi-band Dipole

    [​IMG] For 39.99 you will receive:

    • Our off-center fed dipole with integrated 4:1 balun as depicted in the photos, tested and described below
    • A BNC end protector cap
    • A waterproof dual string carry pouch as pictured
    • Your antenna will be tested on the air before shipping. If available, QSO details will be enclosed.
    • Free Shipping within the United States
    • Your order will be shipped within a maximum 24 hours of payment being received (Sundays excluded).
    • A liberal return policy - return the unused/undamaged item and your money will be refunded (less shipping) - No questions asked -
    See our other items at: http://www.ebay.com/sch/timortiz/m.html?item=162192025369&ssPageName=STRK%3AMESELX%3AIT&rt=nc&_trksid=p2047675.l2562

    We accept paypal. Please contact is if you have any questions or would like to use an alternate payment method.



    Product Details:
    • Approximately 66 feet in length
    • 20 AWG UL1007 Wire
    • 5" x 3" x 1" when compact
    • Weight - > 7.0 ounces
    • BNC Female connector
    • Weather resistant rugged construction
    • Waterproof carry pouch


    People familiar with our antennas already know that compact, light, effective performance, to us, means a dipole. The difference here is that we now offer all of the highly portable characteristics of our regular antennas in a multi-band off-center fed dipole for 40 through 10 meters. This antenna requires a tuner. Fortunately, there are many lightweight, portable tuners available and many newer radios include an auto-tuner. If you are so equipped, then our OCF Dipole is for you. Our antennas are solidly built, rugged and designed to be a high-performance value alternative to much more expensive equipment.

    The antenna is a 40 Meter half-wave dipole fed 1/3 of distance from the end. This raises the feed-point impedance to approximately 200 ohms. To compensate, the antenna is equipped with a 4:1 Guanella -style current balun embedded between the BNC female connector and the 20 AWG UL1007 radials (See schematic with photos). The balun uses two (2) FT50-43 ferrite toroids (one for each side). The result is a highly functional OCF dipole for use on 40 meters through 10 meters. Using a Yaesu FT-817ND as a transmitter and a MFJ portable tuner, our OCFD tunes between 1.1 to 1.5 SWR on all bands 40 through 10 meters. Every antenna is tested this way before shipment, See the map in the photo section. If a QSO is made with another station, the details will be included with the shipment. Perfect for outdoor or stealth operation. Perfect for a small base station antenna. It's also a great, inexpensive gift to give to those involved with amateur radio that requires no additional finishing. It fits easily into a pocket, glove box, bag or carrying case.
     
  2. K2LED

    K2LED XML Subscriber QRZ Page

    Nice job! although I build my own antennas, for $40 bucks each, I'll have to order two of them in SO239's and toss them in the RV. 73 de K2LED
     
  3. KK6QMS

    KK6QMS XML Subscriber QRZ Page

    Do you have SWR curves to share? Interested in what the antenna actually resonates at. Thanks.
    Clifford
     
  4. KK4NWW

    KK4NWW Ham Member QRZ Page

    Hey. Tim do you hold this price?
     

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