ERI Releases Roto-Filler

The new Roto-Filler antenna from Electronics Research Inc. is similar to its half-wave spaced sidemount antenna but modified to exhibit reduced sidelobe levels.
The unit combines the engineering of an internally fed, pressurized system with welded feed connections and brass construction.
The product line incorporates a special feed system that customers can specify to ensure that the vertical plane sidelobes are a minimum of 30 dB below the main beam level. The unit is offered in arrays of four to 12 bays.