ONELINKMORE
onelinkmore 4-Piece N to UHF Adapter Kit, Universal RF Coax Connector Set N Male/Female to PL-259 SO-239, Low Loss Adapters for CB Ham Radio Walkie Talkie WiFi Antenna Extension Cable SWR Meter, VNA
onelinkmore 4-Piece N to UHF Adapter Kit, Universal RF Coax Connector Set N Male/Female to PL-259 SO-239, Low Loss Adapters for CB Ham Radio Walkie Talkie WiFi Antenna Extension Cable SWR Meter, VNA
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--- QUICK SPEC REFERENCE --- Product: 4-Piece N to UHF Adapter Kit — N Male/Female to PL-259/SO-239 SKU: JV-0004 Kit Contents: 1x N Male to UHF Male (PL-259) 1x N Male to UHF Female (SO-239) 1x N Female to UHF Male (PL-259) 1x N Female to UHF Female (SO-239) Body Material: Brass, Nickel Plated Center Contact: Gold Plated Impedance: 50 Ohm Applications: CB radio, ham radio, SWR meter, VNA, WiFi antenna, signal booster Price: $9.79 In Stock: Yes ---
This 4-piece kit covers every gender combination between N-type and UHF (PL-259/SO-239) coaxial connectors, bridging the two most widely used 50 ohm connector standards in amateur radio and RF testing. N-type connectors are used on outdoor antennas, signal boosters, VNAs, and modern RF test equipment; UHF (PL-259/SO-239) connectors dominate HF and CB radio equipment. This kit allows cross-connection between the two standards in any configuration without needing to identify the specific gender combination required before purchasing.
All four adapters are machined from brass with nickel plating for corrosion resistance and gold-plated center contacts for low resistance and long service life. The 50 ohm impedance is consistent across both connector standards (though the UHF connector's impedance control degrades above approximately 300 MHz). Primary applications include connecting an N-type VNA or antenna analyzer to UHF-connected antenna systems, adapting N-type signal booster antennas to UHF-terminated feedlines in existing installations, and cross-connecting ham radio equipment that mixes N-type and UHF connector standards across different pieces of equipment.
An important frequency note: N-type maintains precision 50 ohm impedance up to 11 GHz (standard) or 18 GHz (precision). The UHF connector's impedance geometry becomes increasingly inconsistent above approximately 300 MHz, which means adapters involving the UHF connector introduce some VSWR above 300 MHz even when the N-type connector itself is performing correctly. For HF (1–30 MHz), CB (27 MHz), and lower VHF applications, this limitation is insignificant. For UHF and microwave work, maintaining N-type throughout the signal path is preferable.
Frequently Asked Questions
Antenna analyzers with N-type output ports (like the RigExpert AA-55 ZOOM or similar N-type port analyzers) have N female output sockets. A UHF antenna feedline typically terminates in a PL-259 (UHF male) plug. The adapter you need is N Female to UHF Male — the N female end connects to the analyzer's N female port via an N male-to-female connector or direct, and the UHF male end threads into the feedline's PL-259 plug (which has a female socket on the outside). Wait — the N female to UHF male: the N female accepts the analyzer's N male output, and the UHF male then connects to the SO-239 side of the feedline or adapter. Verify your analyzer's output connector gender before selecting the specific piece from this kit.
Yes. WeBoost boosters use N-type connectors on their outdoor antenna ports. CB antennas and their feedlines typically terminate in PL-259 (UHF male) or connect via SO-239 (UHF female). The N Male to UHF Female adapter allows an N-male booster antenna cable to connect to the SO-239 port on CB antenna equipment, and the N Female to UHF Male adapter allows an N-female booster port to accept a PL-259-terminated CB antenna cable.
N-type connectors are designed with a controlled 50 ohm impedance geometry throughout the connector body — the center conductor diameter, dielectric thickness, and outer conductor diameter are precisely dimensioned to maintain 50 ohms continuously. UHF (PL-259/SO-239) connectors were designed before modern impedance-controlled connector standards and do not maintain constant 50 ohm geometry through the body. At low frequencies (HF, CB), this geometric inconsistency has negligible effect. At UHF frequencies (300 MHz+), the inconsistency causes signal reflections that increase VSWR and insert loss.
Yes. The NanoVNA uses SMA female ports, not N-type, so you would need an SMA-to-N adapter to use these N-type adapters with a NanoVNA. However, if you have a larger VNA with N-type ports (such as an HP/Agilent 8712 or similar bench VNA), the N Female to UHF Male adapter allows direct connection to UHF-terminated devices under test. For NanoVNA use with UHF equipment, an SMA-to-UHF
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