Thus, an antenna element is also resonant when its length is 3/4 of a wavelength (3/2 wavelength for a complete dipole). This is true for all odd multiples of 1/4 wavelength, where the feed-point impedance is purely resistive, though larger than the resistive impedance of the 1/4 wave element.
1 Add salt and sugar then cover (approximately 1 tsp sugar + 1 tsp salt per 1/2 gallon of water). 2  Turn heat on high until water begins to boil then reduce heat to medium to keep water at a simmer. 3  Cook 45 minutes to an hour or until done (for large, fresh ones) or up to four hours (for large, older ones from storage).irections: 1  Arrange pieces on a baking sheet then drizzle with about 2 tablespoons of vegetable oil (or about 1 tablespoon oil per pound). 2  Season generously with salt and pepper then toss them until coated. 3  Cook in oven for about 45 minutes or until they are tender right through, turning them at least once.
Step 5. Lay the roast in the pan with the fatty side up so the juices will baste the roast naturally while cooking. Step 6. Cook for 12 to 25 minutes per pound of tri-tip, depending on how well-done you want the roast. When the internal temperature reaches 125 degrees, the roast is rare. A temperature between 130 to 135 degrees is medium rare, with a 145-degree internal temperature denoting a well-done roast.