SMA Module 91 Balun 19 for RTLSDR Ham Radio Dipole and Long Wire HF Antenna
This is a small, cost-effective balun. 1 x Balun 1:9 Long Wire High Frequency Antenna RTL- Amp lifier Radio Dipole for SMA Female Module. The Balun O ne Nine includes an AntennaGuard varistor on the input to protect your setup from stray ESD.