The Matching Section is 450 Ohm Open Wire Feedline and is a compromise impedance between the 5/8 Wave antenna elements and the feed point. A 4:1 Current Balun. The Balun on the end matches the 450 Ohm Open Wire Line into a 50 Ohm Coax Cable.
The antenna as fed, matches reasonably well into a 50 Ohm Coax Cable Feedline. A Ground Reflector can be added to enhance NVIS Propagation at frequencies below 10 MHz where NVIS Propagation is useable. The Ground Reflector can be a single conductor or several in parallel spaced a few feet apart. This antenna is a great NVIS performer if you have the room for it.
Please note i will be on vacation from July 22 2015 until July 30 2015. All orders made, will be processed upon my return. The item "Double Extended Zepp NVIS Antenna HF 10 meters Flex-Weave" is in sale since Sunday, December 08, 2013. This item is in the category "Consumer Electronics\Radio Communication\Antennas\Ham, Amateur Radio Antennas".
The seller is "ni4l_antennas_electronics" and is located in Taylorsville, North Carolina. This item can be shipped to United States, to Canada, to United Kingdom, DK, RO, SK, BG, CZ, FI, HU, LV, LT, MT, EE, to Australia, GR, PT, CY, SI, to Japan, to China, SE, KR, ID, to Taiwan, ZA, TH, to Belgium, to France, to Hong Kong, to Ireland, to Netherlands, PL, to Spain, to Italy, to Germany, to Austria, RU, IL, to Mexico, to New Zealand, PH, SG, to Switzerland, NO, SA, UA, AE, QA, KW, BH, HR, TR, BR, CL, CO, CR, DO, PA, TT, GT, SV, HN, JM.