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![]() * Use a Balun with a Dipole Antenna Another 'improved' Shortwave Listening (SWL) Antenna design would use a Balun {Matching Transformer} between the Dipole Antennaand the Coax Cable feed-in-line. This is most often a 4:1 {Four-to-One} Matching Transformer. Using the Balun will better 'match' the Dipole Antenna to the Coax Cable feed-in-line and the Receiver across a wide frequency range then simply using a Dipole Antenna that is directly connected to the Coax Cable. - - - The direct conneted Dipole Antenna is great for Hams working on a single Shortwave (HF) Frequency Band. - It's this balun similar to the ones used to connect 75 ohm - coax to the screw connects on the back of a TV? - - Brian Yes - Basically the 300 Ohm to 75 Ohm TV type Matching Transformer is a Balun. iane ~ RHF |
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