{"id":1967,"date":"2016-06-12T10:18:56","date_gmt":"2016-06-12T08:18:56","guid":{"rendered":"http:\/\/dc2wk.schwab-intra.net\/?page_id=1967"},"modified":"2016-06-12T10:52:12","modified_gmt":"2016-06-12T08:52:12","slug":"high-power-qro-hyendfeed","status":"publish","type":"page","link":"https:\/\/dc2wk.schwab-intra.net\/?page_id=1967","title":{"rendered":"High Power QRO HyEndFeed"},"content":{"rendered":"

The HyEndFeed antennas from netherlands are very good antennas, but the max. power from 200 watts are very low.\u00a0So I experimented with a High Power version for my station.<\/p>\n

\"Kerne\"<\/a>
\nAt first I order heavy big Ferrits. I use Teflon band to isolate it<\/p>\n

\"HEF4\"<\/a>
\nHere are the lengths of the wire with the data for the coil at the end<\/p>\n

\"IMG_4400\"<\/a>
\nBy me the finish antenna wire look like this. The wire is from DX-Wire. I made the 80m version.<\/p>\n

\"1<\/a>
\nHere is my 1:25 Balun version<\/p>\n

\"1<\/a>
\nHere is my 1:49 Balun version<\/p>\n

The wire on this baluns is 2mm thick !
\nIn my case the 1:25 balun works better with nicer resonances.<\/p>\n

\"1<\/a>
\nI build everything in a Tupperware case \ud83d\ude42
\nI ground this antenna. The big screw is for the antenna wire, the smal one near the PL jack is for the ground,<\/p>\n

\"1-30\"<\/a>
\nHere are the resonances from this antenna
\nI use it in most of the time for 30-160m.<\/p>\n

My Tests with this antenna:<\/p>\n