PDLII Design for the Avanti PDLII Quad antenna
Download

PDLII Ranking & Summary

PDLII Tags

Quad Recorder antenna manager antenna frequency antenna antenna circumference antenna design analyze antenna calcualte antenna directionnal antenna antenna locator quad envelope antenna generator generate antenna pan antenna dimension antenna efficiency antenna parameter antenna frequency antenna geometry antenna movement check quad planarity verify quad planarity quad intersection create quad sheet generate quad sheet quad create quad surface EASYCOMM antenna 3 element quad element quad wire element quad designer element quad design antenna Terristeral antenna quad antenna logperiodic antenna polarized antenna circular antenna quadrifilar helicoidal antenna PDLII quad antenna deisgn antenna PDLII Avanti antenna balun antenna unun Skyhopper antenna discone antenna QUAGI antenna quad calculator rg6 quad quad rg6 cable rg6 quad shield

PDLII Description

This application will enable you in designing and Avanti PDLII Quad antenna. The Avanti PDLII Quad (tm) of the 70's was known for its great performance. The secret of the design was to drive the quad with a folded dipole known as co-inductive (tm) feed. The dipole could be horizontal or vertical.With both, there is enough isolation of currents that you could feed the dipoles with 2 feed lines and switch between horizontal and vertical polarization to work local or dx. The driven dipoles are insulated from the boom and the reflector did have aluminium spreaders with insulated ends. The folds of the dipoles were made in curves that were grounded to the boom and feed by gamma matches. The curves could be made a little longer for the horizontal to match the antenna at the lower end of the band where most horizontal dx is done. This was found on the 10 meter version. Co-inductive and PDL-II are trademarks and this antenna is most certainly covered by patents. You are allowed to build a not for monetary gain, experimental version for yourself.

PDLII Related Software