Radio Interface GuideUpdated 20 days ago
Use this PTT Connector Guide as a starting point to identify the correct interface for your radio. If you don’t see your exact model listed, reach out to [email protected] for further assistance.
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HA1 - Harris 15 Pin UDC
Radios: M/A-COM, XG-25, XG-75, UNITY XG-75, P5300 Series, P5400 Series, P5500 Series, P7300 Series
- In your programming software, review PTT/audio routing so external mic follows where you key.
- Keep the port/gasket clean for a solid seal and audio path.
- If a retention screw is used: hand-tighten only—no tools.
HA2 - Harris 9 PIN UDC
Radios: XG-100, XL-185, XL-200
- Smaller UDC with different pinout—don’t interchange with 15-pin.
- Confirm accessory audio is enabled in programming software.
- If a retention screw is used: hand-tighten only—no tools.
H3 - Hytera 16 Pin
Radios: PD700, PD780, PD780G, PD785, PD705, PD786, PT580, PD782, PD702, PD702G, PT580H
- Use radio menus/programming software to adjust mic gain and mic AGC if audio sounds thin or hot.
- Wireless accessories may follow different gain rules than cabled ones—test and adjust.
H4 - Hytera 13 Pin
Radios: Digital x1e/x1p/PD602/PD600, PD605G, PD605, PD665, PD665G, PD685, PD685G, HP600, HP680, HP700 Pl
- Slimmer connector vs. 16-pin; confirm model family before ordering.
- For VOX headsets, coordinate radio VOX enable with VOX gain/level in menus.
H5 - Hytera
Radios: TC-320 single 2.5pin with screw
- Simple single-pin; no accessory power.
- Retention screw: hand-tighten only—no tools.
H6 - Hytera
Radios: TC-780, TC-610
- Proprietary side connector—match precisely by model.
- If your accessory uses screws: hand-tighten only—no tools.
H8 - Hytera
Radios: Hytera AP500, BP560, BP565, BP510, BP515, AP510, AP515, AP685, BP510
- Newer AP/BP handhelds; smaller accessory ecosystem than PD7xx—match by model.
I1 - Icom 2 Pin
Radios: IC-F3, IC-F3S, IC-F4, IC-F4S, IC-F10, IC-F20, IC-H2, IC-H6, IC-J12, IC-M5, IC-U12, IC-U16, IC-40, Alinco: DJ-PB27, PB20, DJ-CH272, CH202, TX/RX31, PX31
- Passive interface: no accessory power; electret mics expect bias.
- Not water-sealed; protect the port in wet use.
I1A - Icom
Radios: IC-A25CE, IC-A25C, IC-A25NE, A6, A24, A14
- Airband usage can differ in sidetone/VOX vs. land-mobile sets; adjust mic gain in menus.
- Typically no accessory power; plan for passive PTTs.
I2 - Icom
Radios: IC-F3G, IC-F3GS, IC-G3GT, IC-F4G, IC-F4GS, IC-F4GT, IC-F43GS, IC-F43GT, IC-F43TR, IC-F11, IC-F11S, IC-F14, IC-F14S, IC-F15, IC-F21, IC-F21S, IC-F22, IC-F24, IC-F24S, IC-F31, IC-F33, IC-F43, IC-V8, IC-V80
- Same practical notes as I1: passive, friction-fit, non-waterproof.
I2W - Icom
Radios: Waterproof ICOM: F200
- Use the gasketed plug and seat fully to maintain the IP rating.
I3 - Icom
For Radios: For Icom radios with 2 screws: IC-F3G, IC-F3GS, IC-G3GT, IC-F4G, IC-F4GS, IC-F4GT, IC-F43GS, IC-F43GT, IC-F43TR, IC-F11, IC-F11S, IC-F14, IC-F14S, IC-F15, IC-F21, IC-F21S, IC-F22, IC-F24, IC-F24S, IC-F31, IC-F33, IC-F43, IC-V8, IC-V80, IC-F1000, IC-F2000, T10, V86, F1000 F1100D F2000 F2100D F3001 F3230DS F4001 F4230DS V10MR V3MR
- Two-screw mount = excellent retention/strain relief.
- Hand-tighten only—don’t use tools.
- Generally no accessory power on this family.
I3W - Icom
For Radios: For waterproof Icom radios with 2 screws: IC-F3G, IC-F3GS, IC-G3GT, IC-F4G, IC-F4GS, IC-F4GT, IC-F43GS, IC-F43GT, IC-F43TR, IC-F11, IC-F11S, IC-F14, IC-F14S, IC-F15, IC-F21, IC-F21S, IC-F22, IC-F24, IC-F24S, IC-F31, IC-F33, IC-F43, IC-V8, IC-V80, IC-F1000, IC-F2000
- Like I3 but sealed—keep the seal clean to preserve IP rating.
- Hand-tighten only—don’t use tools.
I4 - Icom
For Radios: IC-F50, IC-F51, IC-F60, IC-F61, IC-F30G, IC-F30GT, IC-F30GS, IC-F31GS, IC-F31GT, IC-F31, IC-F33G, IC-F43G, IC-F43TR, IC-M87, IC-M88
- Multi-pin on higher-end portables; solid latch.
- Some models provide accessory power—use known-good accessories.
I5 - Icom
For Radios: IC-F3262D, F4262D Series (14pin), IC-F4262DT/DS, IC-F4400DS
- 14-pin interface can support accessory ID/power; match the cable to the series.
K1 - Kenwood 2 Pin
Radios: TK208, TK220, TK240, TK248, TK250, TK260G, TK270, TK270G, TK308, TK340, TK350, TK430, TK2100, TK2207, TK3201, TK330, TK3107, TK3207, TK3160, TC265, TC270, TC365, TC366, TC380, TK3302, TK3000, NX340 UV5R, UV-3R+, UV-5RE, UV-5R+, 666S, 777S, 888S, BF-V85, UV-3R+, UV-200, UV-100, UV-5R, BF-888S, BF-F8, BF-FF8+, UV-B6, UV-B5, UV-3R, UV-5RA, UV-5RC, UV-6, BF-K5, BF-A5, F8PH, UV-82, UV-82HP, BF-F8+
- Compatible with Baofeng UV-5R family, but no accessory power.
- Not waterproof; ensure a fully seated plug for reliable PTT.
K2 - Kenwood X11
Radios: K2140, TK2180, TK3140, TK3180, TK280, TK290, NX200/300, NX210, NX230EX, NX330EX, TK380, TK385, TK480, TK481, TK190, TK390, TK2212, TK5210, TK5400, NX200, NX300, TK280/380, TK290/390, TK2140/3140, TK2180/3180, NX200G/300G, NX210G, NX410/411, NX3200/3300, NX5200/5300/5400
- Pro-grade multipin; better retention/features than K1.
- Not backward-compatible with 2-pin; confirm exact series.
- If external mic is too quiet/loud, adjust mic sensitivity in programming software.
M2 - Motorola
Radios: GP1280, GP140, GP320, GP328, GP329, GP338, GP339, GP340, GP360, GP380, GP640, GP650, GP680, HT1250, HT1550, HT750, MTP700, MTP850Ex, MTX8250, MTX8250LS, MTX850, MTX9250, MTX950, MTX950/960, PRO5150, PRO5350, PRO5450, PRO5550, PRO5750, PRO7150, PRO7350, PRO7450, PRO7550, PRO7750, PRO9150, PT9150, PTX700, PTX760, PTX780, Tetra MTP810Ex
- Legacy side port with broad accessory ecosystem.
- If audio is weak/harsh, experiment with external mic gain and mic AGC in programming software.
- If your accessory uses screws: hand-tighten only—no tools.
M3 - Motorola
Radios: EX500, EX600, GL2000, GP328PLUS, GP338PLUS, GP344, GP388, PRO5150elite, RELM: RPV30000, RPV3600, RPU3000, RPU3600, HD1, HA1G GMRS, RT29, RT87, RT48, RT47, RT47V, RT82, RT83, EX500, EX560, EX600, EX600XLS, GL2000, GP328Plus, GP338Plus, GP344, GP388, PRO5150 Elite, PRO5151 Elite
- Compact multi-pin for EX/GL/GP “Plus” & some RELM/RT.
- Do not confuse with M2/M4—mechanical keying is different.
- If screws are used: hand-tighten only—no tools.
M4 - Motorola Universal Connector (Side Connector) Interface
Radios: GP900, HT1000, JT1000, MT2000, MTS2000, MTX8000, MTX838, MTX900, MTX9000, MTX960, XTS2500, XTS3500, XTS5000, XTS3000, XTS500, XTS1500EF, Johnson: 51SL, 5000series, 5100series, 7700series, XTS1500, XTS4250
- Classic side connector; very common and robust.
- Not water-sealed without a gasketed plug.
- Often uses retention screws—hand-tighten only—no tools.
Search for M4 - Motorola Universal Connector (Side Connector) Interface
M8 - Motorola
Radios: Single pin with locking screw for Tetra MTH500, MTH650, MTH800, MTH850
- Simple locking single-pin; typically no accessory power.
- Locking screw: hand-tighten only—no tools.
M9 - Motorola GCAI (Global Core Accessory Interface - APX/XPR)
Radios: APX1000, APX2000, APX3000, APX4000, APX6000, APX7000, APX8000, DP3400, DP3401, DP3600, DP3601, DP4000, DP4400, DP4401, DP4600, DP4601, DP4800, XPR3600, XPR4500, XPR6100, XPR6500, XPR6550, XPR7500, XPR7350, XPR7550, XPR6000, XPR6300, XIR P8620, XIR8661, XIR8628, XIR8668, MTP600 series, MTP850S, P8268, P8600, P8608, P8660, DGP4150, DGP5050, DGP555, DGP6150, SRX2200, MotoTRBO Series
- Smart multi-pin with accessory ID. Not the same as MiniTRBO Slim (M11) or Mini GCAI (M16).
- In programming software, enable external accessory features and adjust analog/digital accessory mic gain as needed.
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M11 - Motorola MiniTRBO Slim
Radios: DP2000/2400/2600, DP3440, DP3441, XPR3000/3300, XPR3500, MTP3250, TETRA MTP3100, MTP3200, MTP3250, MTP3100, MTP3200, XIR P6600, XIR P6608, XIR P6620, XIR P6628, MTP850FUG, MTP3550, DEP550, DEP570, MTP3000, MTP3250, XPR/TRBO Multi-pin Models XPR3300, XPR3500, DP2000, DP2400, DP2600, DP3441, DEP570, MTP3250
- Slimmer multi-pin; not cross-compatible with M9 or M16.
- Adjust accessory mic gain and consider mic AGC settings if audio “pumps.”
M16 - Motorola Mini GCAI (Global Core Accessory Interface)
Radios: Motorola MXP600, R7, iON Smart radio, APX N70, N50, N30
- Firmware requirements (per DISCO32): APX N50 & N30 need R35.00.00+; APX N70 needs R05.00.00+. R7 Series and Ion are supported.
- Not compatible with GCAI (M9) or MiniTRBO Slim (M11) accessories—use Mini GCAI-specific gear.
- In programming software, enable the external accessory and map any desired accessory buttons.
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NATO - 6 Pin ADF Connector
Radios: PRC-152, PRC-148, PRC-119, PRC-117, PRC-150
- Military audio standard; needs the correct downlead/PTT for HTs.
- Pinouts for aux pins can vary by platform—use known-good cables.
NEMESIS - 19 Pin ADF Connector
Radios: PRC-163
- Unique to PRC-163; supports dual-channel gear—use matched accessories.
- Not directly compatible with NATO 6-pin without an adapter.
UV9R - Baofeng Multipin
Radios: UV-9R, UV-9R PLUS, UV-9G, BF-A58, BF-9700, BF-A58/BF-UV9R, BF-S58, BF-N9, GT-3WP
- Waterproof family; not the same connector as K1/UV-5R.
- If your accessory uses a locking screw: hand-tighten only—no tools.
Y - Yaesu 3.5mm Right Angle Connector
Radios: VX-10, VX-110, VX-150, VX-160, VX-180, VX-200, VX-300, VX-400, VX-410, VX-420, FT-3DR, FT-50, FT-60, FT-60R, FT-70, FT-250R, VX-3R
- Simple single-pin audio/PTT; no accessory power.
Y1 - Yaesu 3.5mm
Radios: For Yaesu radios with a single mounting screw: VX10, VX130, VX160, VX168, VX180, VX210, VX210A, VX300, VX400, VX410, VX420, VX354
- Same signal path as Y, with a single retaining screw.
- Hand-tighten only—don’t use tools.
Y2 - Yaesu 3.5mm
Radios: For Yaesu radios with 2 mounting screws: VX130, VX160, VX168, VX180, VX210, VX210A, VX300, VX400, VX410, VX420, VX424, VX354, VX230, VX231, VX454, EVX351, EVX534, EVX539
- Two-screw retention for added security.
- Hand-tighten only—don’t use tools.
Y4 - Yaesu 3.5mm Waterproof Connector
Radios: VX-6R, VX-7R, EVX-S24, IC-4300, IC-M25, FT-207R, Alinco: DJ-R200D, P221, P222, P321, P322, P240, P300, CH3, Vertex Single-pin threaded Models VX-120, VX-127, VX-170, VX-177, VX-6R, VX-7R, EVX-S24
- Threaded, gasketed single-pin for waterproof portables.
- Hand-tighten only—overtightening can damage threads/seal.
Guide by DISCO32