BEGINNERS #1: Improve the Whip Antenna of DVB-T

Home – Serving the Flight Tracking Enthusiast Forums Feeding and Hardware BEGINNERS #1: Improve the Whip Antenna of DVB-T

This topic contains 2 replies, has 3 voices, and was last updated by  MDA 1 month, 1 week ago.

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  • #171

    abcd567
    Participant

    When DVB-T Dongle is purchased, a whip antenna is supplied with it. Every beginner uses this whip in his starter setup.

    Improve the performance of this whip antenna by three simple steps given below:

    (1) Whip is too long for 1090 MHz. Cut it to 67mm.

    (2) Magnetic base provides an insufficient ground-plane. Enlarge ground-plane by placing the whip over a Metallic Can/Box/Plate. An added advantage of placing whip over an iron/steel can is that whip’s magnetic base will cling to the can and keep the whip stable & upright.

    (3) Signal is weak indoors. Place whip near a window or in attic to get maximum signal.

    improved whip

    • This topic was modified 1 year, 11 months ago by  abcd567. Reason: formatting corrections
    #3353

    rin67630
    Participant

    Take care, the whip is made of hardened steel. Electronic cutting pliers may suffer from an attempt to cut it.

    #3738

    MDA
    Participant

    Hi
    Be carefull, usually there is piece of rod below threaded connection to plastic housing with magnet.
    The best way is to open bottom part and measure distance from antenna bottom to beginning of active rod, and than you should calculate length of antenna. Totally it has to be something like 68,75 mm (bottom part in magnet housing + Threaded part + antenna rod). Too long can be cut off, too short is a problem.

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