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BNC to SMA Coax Adapter Kits 6 Type Coax Connector BNC Female to SMA Male Female Convert Coaxial Radio Antenna Adapter for Two Way Radio BaoFeng UV-5R FD-880 Radio Walkie Talkie GD-77 Radio UV-380 HT
BNC to SMA Coax Adapter Kits 6 Type Coax Connector BNC Female to SMA Male Female Convert Coaxial Radio Antenna Adapter for Two Way Radio BaoFeng UV-5R FD-880 Radio Walkie Talkie GD-77 Radio UV-380 HT
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--- QUICK SPEC REFERENCE --- Product: BNC to SMA Coax Adapter Kit, 6-Type SKU: OL-3260 Kit Contents: 1x BNC Female to SMA Male 1x BNC Female to SMA Female 1x BNC Male to SMA Male 1x BNC Male to SMA Female 1x BNC Female to RP-SMA Male 1x BNC Female to RP-SMA Female Impedance: 50 Ohm Body Material: Brass, Nickel Plated Center Contact: Gold Plated Quantity: 6 adapters per kit Price: $16.98 In Stock: Yes Compatible With: Baofeng UV-5R, Kenwood, Vertex, Icom handheld radios; BNC-antenna scanners; SDR dongles ---
This 6-piece kit covers the most common BNC-to-SMA conversion combinations needed when connecting handheld two-way radios, SDR dongles, and scanner receivers to BNC-terminated antennas, cables, and test equipment. The six adapters cover standard SMA and RP-SMA in both male and female orientations, eliminating the need to purchase multiple individual adapters when working across equipment that mixes connector standards. Primary use cases include connecting Baofeng, Kenwood, Vertex, and Icom SMA-port handhelds to BNC mag-mount antennas, connecting RTL-SDR dongles (BNC port) to SMA antennas, and cross-connecting scanner receivers to ham radio antennas.
All six adapters are machined from brass with nickel plating for corrosion resistance and gold-plated center contacts for reliable signal transmission and low contact resistance over repeated mating cycles. The 50 ohm impedance matches the standard used by all amateur radio and scanner equipment. Gold and nickel plating provides significantly better RF performance and durability than zinc alloy alternatives, which can oxidize and increase contact resistance over time.
Before ordering, verify which connector type your radio and antenna use. Baofeng UV-5R and most Chinese-manufactured handhelds use standard SMA female (center hole) on the radio body. BNC antennas terminate in BNC male. This kit includes BNC Female to SMA Male — which connects a BNC-female cable end to an SMA-male plug — and BNC Male to SMA Female, which connects directly between a BNC-male antenna and an SMA-female radio port. The RP-SMA adapters in this kit are for WiFi routers and devices with RP-SMA ports, not standard ham radio equipment.
Frequently Asked Questions
The Baofeng UV-5R has an SMA female port (center hole, external threads). A standard BNC mag-mount antenna cable terminates in a BNC male plug. The adapter you need from this kit is BNC Male to SMA Female — the BNC male end connects to the antenna cable's BNC male connector, and the SMA female end accepts the radio's SMA male antenna stub after removing the rubber duck. This gives you a direct radio-to-mag-mount connection with no additional cable required.
Standard SMA male has a center pin; standard SMA female has a center hole. RP-SMA (Reverse Polarity) reverses this: RP-SMA male has a center hole, RP-SMA female has a center pin. Ham radio handhelds use standard SMA. WiFi routers and RP-SMA antennas use RP-SMA. The kit includes both variants because BNC-to-RP-SMA conversions are needed when connecting BNC test equipment to WiFi devices or when using BNC-terminated signal generators with RP-SMA port routers.
RTL-SDR Blog v3 dongles use SMA female ports. Most ham radio base antennas terminate in PL-259 (UHF male), not BNC. This BNC-to-SMA kit would be most useful if your SDR dongle has a BNC port (as found on some NooElec and older RTL-SDR models) and you want to connect to an SMA-terminated antenna. For connecting SMA-port SDRs to UHF/PL-259 antennas, an SMA-to-UHF adapter kit would be needed instead.
These adapters are suitable for both transmit and receive at typical handheld transceiver power levels (up to approximately 8W). The brass construction and gold-plated contacts maintain stable RF performance across the 50 ohm impedance at VHF and UHF frequencies. For high-power amplifier use (100W+), purpose-built high-power adapters are more appropriate, but for all standard handheld and mobile radio applications these adapters are fully capable.
The 4 standard combinations (BNC M-to-SMA M, BNC M-to-SMA F, BNC F-to-SMA M, BNC F-to-SMA F) cover most BNC-to-standard-SMA scenarios. The additional 2 RP-SMA adapters extend coverage to WiFi and RP-SMA devices without requiring a separate purchase. For users who work across ham radio, SDR, and WiFi equipment, having all 6 types in one kit eliminates the common problem of finding you need the RP-SMA variant after already ordering the standard SMA kit.
Most modern Icom, Kenwood, and Vertex handheld radios for amateur radio use standard SMA female antenna ports, making them compatible with the SMA adapters in this kit. Some older or commercial-band models use different connector standards. Verify your specific radio model's antenna connector type before ordering. The SMA female port can be identified by its center hole and external threads — if your radio has a protruding center pin, it uses SMA male and would need different adapters.
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