20 Inch TNC Male to TNC Female Low Loss Antenna Extension Cable for GPSRG58/U coaxial cables feature precision-terminated TNC Male to TNC Female connectorsConstructed with good quality extremely low-loss RG58 cableHigh frequency low loss and 50 ohm low impedance, heat shrink on both endsRG-58 means far less attenuation than cables made from thin RG316 or RG174.
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