Super-elastic Signal Stick: SMA female

(4 customer reviews)

Now offering quantity discounts!

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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, White, Brown, Violet, Glow in the Dark (full length)

4 reviews for Super-elastic Signal Stick: SMA female

  1. David Evans (verified owner)

    Impressive antenna.

  2. Shannon (verified owner)

    Love this antenna! Roll it up for transport then let it go for working those stations. I’ve had a pair on my two Boafeng 5R for over 4 years now. Coming back to buy another one for my new Baofeng F8.

  3. Matthew C.

    This antenna is awesome first of all. Extremely flexible, able to be bended and rolled up and placed in a pocket just like the pictures show without getting deformed at all and then opened up in a second when it is needed. Also the warranty and customer service is excellent. I emailed Richard about the antenna starting to rotate inside the base a little bit and he said they had some issues with older epoxy failing and had since fixed this issue. He offered to replace it for me at no extra cost. I sent him the old one and he sent me a brand new one very quickly. I highly recommend this website and the antenna.

  4. Sid B. (verified owner)

    Received order quickly. Awesome antenna! Supports a good cause too!!

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