Super-elastic Signal Stick: SMA female

(1 customer review)

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Some radios have an abnormally shallow SMA connector on them which leaves a gap between the radio and the antenna. You can add on a spacer to fill that gap if your radio has that issue. Note that this is very uncommon for radios which require an SMA-F connector.


SKU: ST-SMA-F Category:


Connector: SMA Female

Please look at the images to make sure you have the correct connector! We usually have two or three orders per month that are sent back because the customer mixed up male vs female (the gender is determined by the center conductor, not by the threads!).

These are hand-made, ultra lightweight, and nearly indestructible antennas which outperform the stock antenna your handheld radio came with by a significant margin. Originally designed to use as a fundraiser for a youth group, sales from these remarkable antennas now provide funding for HamStudy, ExamTools, and other initiatives which help support the Amateur Radio community.

All Signal Sticks are hand made; if you are looking for perfection in aesthetics then these may not be for you, but our design is continually evolving in order to provide better looking, better functioning, and above all more durable antennas.

The SMA-Female connector fits:

  • Yaesu:
    • FT-65, FT-25, FT-4VR, FT-4XR
  • Baofeng:
    • UV-5R, UV-5X3, and other variants
    • GT-3
    • UV-82
    • UV-B5
    • most others
  • Kenwood:
    • TK-2107, TK-3107, TK-2260, TK-3260, TK-3160, TK-278, TK-378
    • some others
  • Most Anytone HTs
  • Wouxun:
    • UV6D, UV2D, UVD1P
    • Note: most newer models use SMA-M, but any model could have either, so check!
  • Alinco:
    • DJ-MD5
  • many others, check the pictures!

See Ham Radio School’s What’s that connector on my HT?. If the center conductor on the SMA connector on your radio is a socket, this is for you.


  • Frequency range:
    • Dual band version – 1/4 wave on 2 meter (144-148Mhz) and 3/4 wave on 70 centimeter (420-450Mhz)
      • SWR has been measured as low as:
        • 1.3:1 @ 146Mhz
        • 1.5:1 @ 440Mhz
        • This SWR chart was taken using a balun to isolate the antenna and a ~18″ tiger tail to stabilize the SWR. Take it with a grain of salt, but it’s fairly accurate as far as it goes.
    • Single band 220 version – 1/4 wave on 1.25 meter (222-225Mhz)
    • Single band 440 version – 1/4 wave on 70 centimeter (centered at approximately 440Mhz)
  • Length
    • Dual band version – Approximately 19″ long
    • Single band 220 version – Approximately 12″ long
    • Single band 440 version – Approximately 6″ long
  • Custom designed 3d printed tip and connector cover providing unprecedented strength
  • Made of Nitinol, a very resilient and ridiculously flexible nickel-titanium alloy
  • Extremely light-weight — reduces connector strain on your radio!
  • Hand-made by hams in Utah
  • Lifetime guarantee!
  • Nearly indestructible

Additional information

Weight 0.1 oz
Dimensions 4 × 4 × 0.1 in
Frequency Range

Dual Band 2 meter / 70cm (19" long), Single Band 220, Single Band 440


Black, Silver (clear), Yellow, Orange, Red, Green, Blue

1 review for Super-elastic Signal Stick: SMA female

  1. David Evans (verified owner)

    Impressive antenna.

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