MX Motorola to BNC-F. MX has the same "SMA-F" thread pitch just without the center pin.
This adapter may require modification to fit your specific MX ported radio. We have noticed that some ICOM and Motorola radios have a high antenna port wall, thus not allowing this adapter to seat all the way down. Removing the metal ring wall before the adapter's knurled wall will remedy this issue (dremeling it off is the easiest way we have found).
Modification will be required for: XPR7550 and XPR3300
Compatible with:
Motorola: XPR7350 XPR3500 DP2400 DP2600 DP4600, DP4800, DP4801, XPR7580, SP10, SP21, SP50, VL130 GL2000, GP620, PRO5350, PRO5450, PRO7550, DGP8550
ICOM: F11, F14/S, F3001, F3003, F3011, F3021, F3021T/S, F3023T/S, F33GT/GS, F3161DT/DS, F3161T/S, F3163T/S, F70DT/DS, F21, F24, F4G, F4TR, F40G, F4021, F4061, F43G, F43TR, F80, F80D, F406