300 ohm/75 ohm. Transformer ... Twin Lead. to FM (not included) ... Make sure the antenna is connected to. the connector on the rear of your TV as. The 300 ohm connector is for an antenna that uses a flat, two wire cable called twin lead. You may need an adapter of some type to convert the connector that is on the end of the coaxial cable coming from the antenna to the type of connector on the back of your receiver if the two are not a match.
The “gap” used a PVC coupling epoxy-ed to the copper pipes. Wire inside was #14 AWG THHN stranded building wire. I used a Hubbell lighting weatherproof box with mounting ears as the base and fed it with 300 ohm TV “twin-lead”. Antenna is still in use today!