{"id":430,"date":"2015-02-06T08:38:39","date_gmt":"2015-02-06T06:38:39","guid":{"rendered":"http:\/\/www.pi4com.nl\/?p=430"},"modified":"2015-06-16T15:19:24","modified_gmt":"2015-06-16T13:19:24","slug":"another-day-of-antenna-work","status":"publish","type":"post","link":"https:\/\/www.pi4com.nl\/?p=430","title":{"rendered":"Another day of Antenna work"},"content":{"rendered":"<p>As you might have seen on Twitter we had problems with our new 15m yagi.<\/p>\n<p>During the winterstorms in december 2014 the 6 element Optibeam for 21Mhz came loose from the rotator and freely turned where the wind pushed it. Off course cables etc. where cut off. January 31th We toook the tower down to modify the rotator and replace the cable. A long day hard work.<\/p>\n<p>Howerver, during this work we found out that a few of the bolts holding together the boom also came loose and disappeared\u2026\u2026. Most probably we did not do the final check on these bolts when assembling the antenna whilst the manual is very clear what force to use fort his L<\/p>\n<p>So on Sunday replacement parts where ordered by Optibeam. The super service provided these free of charge and they were delivered on Tuesday. On Thursday we were lucky to have the crane available (and suitable weather) to bring Kees PA3BWD up to the antenna to check all bolts and put new ones in.<\/p>\n<p>Another antenna ready for the PACC Contest and K1N\u2026..<\/p>\n<p><a href=\"https:\/\/i0.wp.com\/www.pi4com.nl\/wp-content\/uploads\/2015\/02\/image001.jpg\" rel=\"attachment wp-att-431\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"431\" data-permalink=\"https:\/\/www.pi4com.nl\/?attachment_id=431\" data-orig-file=\"https:\/\/i0.wp.com\/www.pi4com.nl\/wp-content\/uploads\/2015\/02\/image001.jpg?fit=776%2C437&amp;ssl=1\" data-orig-size=\"776,437\" data-comments-opened=\"0\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"image001\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/www.pi4com.nl\/wp-content\/uploads\/2015\/02\/image001.jpg?fit=776%2C437&amp;ssl=1\" class=\"alignnone size-full wp-image-431\" title=\"image001-jpg\" src=\"https:\/\/i0.wp.com\/www.pi4com.nl\/wp-content\/uploads\/2015\/02\/image001.jpg?resize=1024%2C1024\" alt=\"\" width=\"1024\" height=\"1024\" \/><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>As you might have seen on Twitter we had problems with our new 15m yagi. During the winterstorms in december 2014 the 6 element Optibeam for 21Mhz came loose from the rotator and freely turned where the wind pushed it. Off course cables etc. where cut off. January 31th We toook the tower down to&hellip;&nbsp;<a href=\"https:\/\/www.pi4com.nl\/?p=430\" rel=\"bookmark\">Read More &raquo;<span class=\"screen-reader-text\">Another day of Antenna work<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":431,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"neve_meta_sidebar":"","neve_meta_container":"","neve_meta_enable_content_width":"","neve_meta_content_width":0,"neve_meta_title_alignment":"","neve_meta_author_avatar":"","neve_post_elements_order":"","neve_meta_disable_header":"","neve_meta_disable_footer":"","neve_meta_disable_title":"","ngg_post_thumbnail":0,"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[3,11],"tags":[],"class_list":["post-430","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-pi4com","category-werkzaamheden"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/www.pi4com.nl\/wp-content\/uploads\/2015\/02\/image001.jpg?fit=776%2C437&ssl=1","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p5clVw-6W","jetpack-related-posts":[{"id":29092,"url":"https:\/\/www.pi4com.nl\/?p=29092","url_meta":{"origin":430,"position":0},"title":"Antenna work at the station.  Building the new #optibeam 5 e","author":"@lex","date":"7th August 2021","format":false,"excerpt":"Antenna work at the station. Building the new 5 el. for 20m. https:\/\/t.co\/BIBCRqCdDe\u00a0","rel":"","context":"In &quot;Hamradio&quot;","block_context":{"text":"Hamradio","link":"https:\/\/www.pi4com.nl\/?cat=12"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.pi4com.nl\/wp-content\/uploads\/2021\/08\/e8l3walxsae9exb.jpg?fit=768%2C1024&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.pi4com.nl\/wp-content\/uploads\/2021\/08\/e8l3walxsae9exb.jpg?fit=768%2C1024&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.pi4com.nl\/wp-content\/uploads\/2021\/08\/e8l3walxsae9exb.jpg?fit=768%2C1024&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.pi4com.nl\/wp-content\/uploads\/2021\/08\/e8l3walxsae9exb.jpg?fit=768%2C1024&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":31107,"url":"https:\/\/www.pi4com.nl\/?p=31107","url_meta":{"origin":430,"position":1},"title":"One step back to move forward","author":"@lex","date":"30th April 2022","format":false,"excerpt":"Today a lot of aluminium was removed to make room for new antennas. Our 40m moxon who was killed in action during the winter storms was removed from the BIG tower and also our small tower was cleared, both to make room for Optibeam replacement antennas shortly.","rel":"","context":"In &quot;PI4COM&quot;","block_context":{"text":"PI4COM","link":"https:\/\/www.pi4com.nl\/?cat=3"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.pi4com.nl\/wp-content\/uploads\/2022\/04\/IMG-20220430-WA0000.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.pi4com.nl\/wp-content\/uploads\/2022\/04\/IMG-20220430-WA0000.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.pi4com.nl\/wp-content\/uploads\/2022\/04\/IMG-20220430-WA0000.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.pi4com.nl\/wp-content\/uploads\/2022\/04\/IMG-20220430-WA0000.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/www.pi4com.nl\/wp-content\/uploads\/2022\/04\/IMG-20220430-WA0000.jpg?resize=1050%2C600&ssl=1 3x"},"classes":[]},{"id":31240,"url":"https:\/\/www.pi4com.nl\/?p=31240","url_meta":{"origin":430,"position":2},"title":"Antenna work &#8211; January 2023","author":"@lex","date":"1st February 2023","format":false,"excerpt":"How it happened we still do not know but in the middle of the 2022 CQWW contests our main tower with the 20m and 10m yagi's on it gave problems again. For the 2nd time in 8 months the new Optibeam 20M5 had a mechanical failure at the feeding system\u2026","rel":"","context":"In &quot;PI4COM&quot;","block_context":{"text":"PI4COM","link":"https:\/\/www.pi4com.nl\/?cat=3"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.pi4com.nl\/wp-content\/uploads\/2023\/02\/DJI_0015-scaled.jpg?fit=1200%2C675&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.pi4com.nl\/wp-content\/uploads\/2023\/02\/DJI_0015-scaled.jpg?fit=1200%2C675&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.pi4com.nl\/wp-content\/uploads\/2023\/02\/DJI_0015-scaled.jpg?fit=1200%2C675&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.pi4com.nl\/wp-content\/uploads\/2023\/02\/DJI_0015-scaled.jpg?fit=1200%2C675&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/www.pi4com.nl\/wp-content\/uploads\/2023\/02\/DJI_0015-scaled.jpg?fit=1200%2C675&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":31086,"url":"https:\/\/www.pi4com.nl\/?p=31086","url_meta":{"origin":430,"position":3},"title":"Friday&#8230; repair day","author":"@lex","date":"25th March 2022","format":false,"excerpt":"Today the moment was there to repair the 20m Optibeam from the damage encountered during the 3 storms which hit us within a 2 week periode. We quickly received the damaged parts from Tom at Optibeam maling it possible to do the repair work today. Luckely the weather was very\u2026","rel":"","context":"In &quot;PI4COM&quot;","block_context":{"text":"PI4COM","link":"https:\/\/www.pi4com.nl\/?cat=3"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.pi4com.nl\/wp-content\/uploads\/2022\/03\/IMG-20220325-WA0011-1.jpg?fit=675%2C1200&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.pi4com.nl\/wp-content\/uploads\/2022\/03\/IMG-20220325-WA0011-1.jpg?fit=675%2C1200&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.pi4com.nl\/wp-content\/uploads\/2022\/03\/IMG-20220325-WA0011-1.jpg?fit=675%2C1200&ssl=1&resize=525%2C300 1.5x"},"classes":[]},{"id":31169,"url":"https:\/\/www.pi4com.nl\/?p=31169","url_meta":{"origin":430,"position":4},"title":"A hard day&#8217;s work&#8230;.","author":"PA1AW","date":"10th September 2022","format":false,"excerpt":"This friday and saturday there was a lot of activity at the PI4COM station. On friday we built the new Optibeam OB40-2 yagi for 40m and the OB11-5 multiband yagi for the multiplier station. On saturday the big crane was there to get both antennas in their towers. We are\u2026","rel":"","context":"In &quot;PI4COM&quot;","block_context":{"text":"PI4COM","link":"https:\/\/www.pi4com.nl\/?cat=3"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.pi4com.nl\/wp-content\/uploads\/2022\/04\/IMG-20220430-WA0005.jpg?fit=675%2C1200&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.pi4com.nl\/wp-content\/uploads\/2022\/04\/IMG-20220430-WA0005.jpg?fit=675%2C1200&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.pi4com.nl\/wp-content\/uploads\/2022\/04\/IMG-20220430-WA0005.jpg?fit=675%2C1200&ssl=1&resize=525%2C300 1.5x"},"classes":[]},{"id":31528,"url":"https:\/\/www.pi4com.nl\/?p=31528","url_meta":{"origin":430,"position":5},"title":"PACC 2026 at PI4COM","author":"@lex","date":"6th March 2026","format":false,"excerpt":"As a Dutch contest group, we think it is important to make ourselves heard during the national competition. The duration of (only) 24 hours also makes it a competition with a low threshold for our members. We still find it difficult that the PACC coincides with another favorite race of\u2026","rel":"","context":"In &quot;Contests&quot;","block_context":{"text":"Contests","link":"https:\/\/www.pi4com.nl\/?cat=10"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.pi4com.nl\/wp-content\/uploads\/2026\/03\/COMPACC2026logoV2.png?fit=1200%2C724&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.pi4com.nl\/wp-content\/uploads\/2026\/03\/COMPACC2026logoV2.png?fit=1200%2C724&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.pi4com.nl\/wp-content\/uploads\/2026\/03\/COMPACC2026logoV2.png?fit=1200%2C724&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.pi4com.nl\/wp-content\/uploads\/2026\/03\/COMPACC2026logoV2.png?fit=1200%2C724&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/www.pi4com.nl\/wp-content\/uploads\/2026\/03\/COMPACC2026logoV2.png?fit=1200%2C724&ssl=1&resize=1050%2C600 3x"},"classes":[]}],"jetpack_likes_enabled":true,"_links":{"self":[{"href":"https:\/\/www.pi4com.nl\/index.php?rest_route=\/wp\/v2\/posts\/430","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.pi4com.nl\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.pi4com.nl\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.pi4com.nl\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.pi4com.nl\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=430"}],"version-history":[{"count":0,"href":"https:\/\/www.pi4com.nl\/index.php?rest_route=\/wp\/v2\/posts\/430\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.pi4com.nl\/index.php?rest_route=\/wp\/v2\/media\/431"}],"wp:attachment":[{"href":"https:\/\/www.pi4com.nl\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=430"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.pi4com.nl\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=430"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.pi4com.nl\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=430"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}