{"id":491,"date":"2019-01-24T20:41:40","date_gmt":"2019-01-25T01:41:40","guid":{"rendered":"http:\/\/braarc.net\/?p=491"},"modified":"2019-02-03T12:02:03","modified_gmt":"2019-02-03T17:02:03","slug":"440-repeater-project-update","status":"publish","type":"post","link":"https:\/\/braarc.net\/?p=491","title":{"rendered":"440 Repeater Project Update"},"content":{"rendered":"

UPDATE 2\/3\/2019: The BRAARC Technical department made the climb 110 feet to the 440 repeater site to install a temporary feedline and antenna.\u00a0 Early reports of repeater performance are not hopeful.\u00a0 However, the SWR is much improved over the original antenna and feedline.\u00a0 We look forward to your signal report.<\/p>\n

\"440<\/a>

440 Temporary Antenna<\/p><\/div>\n

\"440<\/a>

440 Temporary Antenna SWR<\/p><\/div>\n

\"FSU<\/a>

FSU Cramer Hall<\/p><\/div>\n

The BRAARC Technical department is busy working on adjusting a set of new duplexers for the 440 Repeater.\u00a0 Good progress is being made on the Decibel Products, Inc. model 532-4001-004 Transceiver Duplexer salvaged from a commercial repeater.\u00a0 Club members enjoyed a tech-corner presentation during the January meeting that reviewed the function and construction of duplexers.\u00a0 As discussed, careful adjustments are necessary to block and pass the appropriate frequencies to allow for proper repeater operation.\u00a0 Highly specialized equipment is used to adjust these characteristics of the duplexer.\u00a0 It appears the duplexer is in fair condition and is able to be adjusted after extensive cleaning.<\/p>\n

\"440<\/a>

440 low-pass filter<\/p><\/div>\n

 <\/p>\n

\"440<\/a>

440 high-pass filter<\/p><\/div>\n

The band pass and block adjustments are visualized and measured using a spectrum analyzer with a tracking generator.\u00a0 The low and high band pass and block adjustments are made in the same fashion.\u00a0 The manufacturer provides detailed instructions to aid in properly adjusting the duplexer.\u00a0 The club expects to install the duplexer soon.<\/p>\n

Happy Hamming<\/p>\n

KD8DIB<\/p>\n","protected":false},"excerpt":{"rendered":"

UPDATE 2\/3\/2019: The BRAARC Technical department made the climb 110 feet to the 440 repeater site to install a temporary feedline and antenna.\u00a0 Early reports of repeater performance are not… Read more ><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"footnotes":""},"categories":[8],"tags":[],"class_list":["post-491","post","type-post","status-publish","format-standard","hentry","category-club-news"],"_links":{"self":[{"href":"https:\/\/braarc.net\/index.php?rest_route=\/wp\/v2\/posts\/491","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/braarc.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/braarc.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/braarc.net\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/braarc.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=491"}],"version-history":[{"count":8,"href":"https:\/\/braarc.net\/index.php?rest_route=\/wp\/v2\/posts\/491\/revisions"}],"predecessor-version":[{"id":520,"href":"https:\/\/braarc.net\/index.php?rest_route=\/wp\/v2\/posts\/491\/revisions\/520"}],"wp:attachment":[{"href":"https:\/\/braarc.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=491"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/braarc.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=491"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/braarc.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=491"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}