Which adapter do I need for Iron Spear antennas?

Look at the jack on the radio, not the writing on the rubber duck. Pin out vs hole decides SMA gender — that’s how you pick the right SMA↔BNC adapter.

Your Maximus, Guardian, or Minimus screws on with a BNC — the quick quarter-turn connector. Your radio almost certainly doesn’t. That’s fine. You just need the right little SMA to BNC adapter between them. Built for hard work.

Most Baofeng, Anytone, Tidradio, Yaesu, Icom, and other handhelds use SMA on the radio body. Iron Spear HT whips use BNC. Matching connector gender and wall depth is what makes the adapter seat flush — unscrew the stock rubber duck and judge the jack, not the print on the duck.

Quick path: pin sticking out (SMA-male on radio) → SMA female → BNC female; hole on the radio (SMA-female) → SMA male → BNC female; won’t sit flush → same gender with narrow / thin-wall. Then pick your whip and, if you want the antenna off the radio body, a relocation kit.

Prefer a two-question walkthrough? Try the SMA gender & thin-wall adapter checker.

What am I looking at?

Doesn’t look like either? Stop and double-check. Some commercial Motorolas aren’t standard SMA/BNC at all.

Shop rules that save radios

  • Hand-tighten only. Tools crack the jack.
  • One adapter. Don’t stack them.
  • Still unsure? Match the pin, then grab Maximus / Guardian / Minimus for the bands you actually use.

FAQ

How do I tell SMA-male vs SMA-female on my radio?

Look at the jack on the radio — not the writing on the rubber duck. Pin sticking out = SMA-male on the radio (needs SMA-female → BNC-female). Hole = SMA-female on the radio (needs SMA-male → BNC-female). Pin out vs hole decides SMA gender.

My Baofeng UV-5R / similar — which adapter?

Usually pin sticking out → SMA female → BNC female. Confirm on the jack before you order; a few clones and newer boards differ.

What’s narrow-wall / thin-wall?

Same gender as the standard adapter, with a slimmer shoulder for recessed or tight wells. Baofeng tight SMA-male ports often need the narrow-wall SMAF→BNCF. Recessed Yaesu FT-60 / VX-class SMA-female needs thin-wall on the male side — that’s a different part; don’t mix them.

Can I stack adapters?

No. One adapter. Hand-tighten only — tools crack the jack.

My radio isn’t in the chart / looks like Motorola commercial?

Stop. Some Motorola / Harris commercial handhelds are not standard SMA/BNC. This chart covers common amateur and GMRS handhelds. If you’re unsure, contact the shop before forcing a fit.

After the adapter, which antenna?

Maximus for 2m/70cm daily carry, Guardian for ~155/465 public-safety bands, Minimus for 70cm compact. Want the whip off the radio body? Pair with an antenna relocation kit.

Find your radio

Type your brand or model below. Chart lists 163 common handhelds.

Adapter key

Recessed Yaesu FT-60 / VX need thin-wall on the SMA-male → BNC-female side (not the Baofeng narrow-wall SKU).

Antennas

Credit

Connector genders were cross-checked against manufacturer manuals, our shop notes, and public radio-model listings (including SignalStuff). This page is Iron Spear’s own guide and maps to Iron Spear adapters — not a copy of anyone else’s shop.

SMA to BNC: gender, wall depth, and the upgrade path

SMA to BNC is the usual upgrade path when you replace a stock HT antenna with a BNC whip (Maximus, Minimus, Guardian) or run a BNC relocation cable. Built for hard work.

Gender: look at the radio jack — pin out = SMA-male on the radio (needs SMA-female adapter); hole = SMA-female on the radio (needs SMA-male adapter). The Iron Spear side is always BNC-female for the antenna.

Wall depth: if a standard adapter won’t sit flush in a recessed SMA well (common on some Yaesu and tight-port HTs), use the narrow / thin-wall body — same gender, slimmer shoulder.

Quick tools: SMA Gender & Thin-Wall Adapter Checker · search the radio grid above.

Shop the adapters:

Next: Maximus · Minimus · Guardian · Ham radio antennas · Relocation kit 48" · Relocation kit 24"

Radio-model adapter matrix (AnyTone / Yaesu / Wouxun-GMRS)

Use the search chart above for the full radio list. This short matrix covers common upgrade paths beyond Baofeng — then deep-links the thin-wall adapter and SMA checker. Built for hard work.

AnyTone 878 class (e.g. D878UVII): typically SMA-Male (pin out) → SMA female → BNC female. Confirm the pin on your unit; long-shaft or recessed wells may need the narrow / thin-wall body.

Yaesu FT-60 class (FT-60R and similar SMA-female HTs): SMA-Female (hole) → SMA male → BNC female. If the well is recessed and a standard body will not sit flush, verify fit and prefer thin-wall thinking on SMA-male radios in the same family of problems — use the checker below.

Wouxun / GMRS HTs (KG-805G, KG-935G, UV-9G class, and similar): many are SMA-Male; some Wouxun UV9-class units are SMA-Female. Match gender — SMA-F→BNC-F or SMA-M→BNC-F. Do not guess; search the radio grid above for the exact model. UV-9G class is typically SMA-Male.

Related / Resources