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.
Roasts. How long to cook a tri-tip roast depends on its weight and shape. For an average-sized, 2-lb. roast that is about 2 inches thick, cook the roast on one side for 20 to 30 minutes. Turn the roast over and continue cooking to an internal temperature of 140 degrees F as measured with a meat thermometer.trips. Tri-tip strips cook to rare in about 8 to 10 minutes, and to medium in 12 to 14 minutes. This is the total cooking time, so turn the strips over at the halfway point -- 4 to 5 minutes on each side for rare, and 6 to 7 minutes on each side for medium. Calman Lugo/iStock/Getty Images.