Here’s you’ll find links to a daily spectrogram for the NAVTEX MW sub-band, recorded at Cobh, Cork Harbour, Ireland, IO51uu during June 2026. I started saving these first, on the 7th of June 2026.<\/p>\n\n\n\n
Each spectrogram covers a 16h 44m period, that being the length of the longest night of the year here, with 15m added before sunset and after sunrise to capture enhanced reception that sometimes occurs around sunset or sunrise. Each spectrogram starts at 1608z and ends at 0852z the following morning.<\/p>\n\n\n\n
Along with each image, there is also a processed version courtesy of my radio friend and keen NAVTEX DXer, SWL Tobias. Tobias has written software that takes my spectrogram as input, and processes it to create a high contrast version, to convert the timescale to UTC and to add NAVTEX slot letters. Thanks Tobias!<\/p>\n\n\n\n
Each unprocessed spectrogram image is 2556×1569 pixels in size. Tobias’ processed images are 2048×2048 pixels in size:<\/p>\n\n\n\n
<\/p>\n","protected":false},"excerpt":{"rendered":"
Here’s you’ll find links to a daily spectrogram for the NAVTEX MW sub-band, recorded at Cobh, Cork Harbour, Ireland, IO51uu during June 2026. I started saving these first, on the 7th of June 2026. Each spectrogram covers a 16h 44m period, that being the length of the longest night of the year here, with 15m […]<\/p>\n","protected":false},"author":1,"featured_media":279,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7,19,6],"tags":[],"class_list":["post-272","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-listening","category-navtex","category-operating"],"_links":{"self":[{"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/posts\/272","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/comments?post=272"}],"version-history":[{"count":18,"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/posts\/272\/revisions"}],"predecessor-version":[{"id":464,"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/posts\/272\/revisions\/464"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/media\/279"}],"wp:attachment":[{"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/media?parent=272"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/categories?post=272"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/tags?post=272"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
![2026-06-17_160803z_to_2026-06-18_0852z_navtex_band<\/a>High contrast, UTC version with navtex time-slots overlay<\/li>\n\n\n\n2026-06-16_160803z_to_2026-06-17_085204z_navtex_band<\/a>High contrast, UTC version with navtex time-slots overlay<\/a><\/li>\n\n\n\n2026-06-15_160803z_to_2026-06-16_085204z_navtex band<\/a>High contrast, UTC version with navtex time-slots overlay<\/a><\/li>\n\n\n\n2026-06-14_160803z_to_2026-06-15_085204z_navtex band<\/a>High contrast, UTC version with navtex time-slots overlay<\/a><\/li>\n\n\n\n2026-06-13_160803z_to_2026-06-14_085204z_navtex band<\/a>High contrast, UTC version with navtex time-slots overlay<\/a><\/li>\n\n\n\n2026-06-12_160803z_to_2026-06-13_085204z_navtex band<\/a>High contrast, UTC version with navtex time-slots overlay<\/a><\/li>\n\n\n\n2026-06-11_160803z_to_2026-06-12_085204z_navtex band<\/a>High contrast, UTC version with navtex time-slots overlay<\/a><\/li>\n\n\n\n2026-06-10_160803z_to_2026-06-11_085204z_navtex band<\/a>High contrast, UTC version with navtex time-slots overlay<\/a><\/li>\n\n\n\n2026-06-09_160803z_to_2026-06-10_085204z_navtex band<\/a>High contrast, UTC version with navtex time-slots overlay<\/a><\/li>\n\n\n\n2026-06-08_160803z_to_2026-06-09_085204z_navtex band<\/a>High contrast, UTC version with navtex time-slot overlay<\/a><\/li>\n\n\n\n2026-06-07_160803z_to_2026-06-08_085204z_navtex band<\/a>High contrast, UTC version with navtex time-slot overlay<\/a><\/li>\n<\/ul>\n\n\n\n<\/p>\n","protected":false},"excerpt":{"rendered":"Here’s you’ll find links to a daily spectrogram for the NAVTEX MW sub-band, recorded at Cobh, Cork Harbour, Ireland, IO51uu during June 2026. I started saving these first, on the 7th of June 2026. Each spectrogram covers a 16h 44m period, that being the length of the longest night of the year here, with 15m […]<\/p>\n","protected":false},"author":1,"featured_media":279,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7,19,6],"tags":[],"class_list":["post-272","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-listening","category-navtex","category-operating"],"_links":{"self":[{"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/posts\/272","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/comments?post=272"}],"version-history":[{"count":18,"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/posts\/272\/revisions"}],"predecessor-version":[{"id":464,"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/posts\/272\/revisions\/464"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/media\/279"}],"wp:attachment":[{"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/media?parent=272"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/categories?post=272"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/tags?post=272"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}](\"https:\/\/ei4hq.ie\/test\/wp-content\/uploads\/2026\/06\/2026-06-17_160803z_to_2026-06-18_085204z_navtex_band.png\"){kind=link}
![2026-06-16_160803z_to_2026-06-17_085204z_navtex_band<\/a>](\"https:\/\/ei4hq.ie\/test\/wp-content\/uploads\/2026\/06\/2026-06-16_160803z_to_2026-06-17_085204z_navtex_band.png\"){kind=link}
![High contrast, UTC version with navtex time-slots overlay<\/a><\/li>\n\n\n\n2026-06-15_160803z_to_2026-06-16_085204z_navtex band<\/a>High contrast, UTC version with navtex time-slots overlay<\/a><\/li>\n\n\n\n2026-06-14_160803z_to_2026-06-15_085204z_navtex band<\/a>High contrast, UTC version with navtex time-slots overlay<\/a><\/li>\n\n\n\n2026-06-13_160803z_to_2026-06-14_085204z_navtex band<\/a>High contrast, UTC version with navtex time-slots overlay<\/a><\/li>\n\n\n\n2026-06-12_160803z_to_2026-06-13_085204z_navtex band<\/a>High contrast, UTC version with navtex time-slots overlay<\/a><\/li>\n\n\n\n2026-06-11_160803z_to_2026-06-12_085204z_navtex band<\/a>High contrast, UTC version with navtex time-slots overlay<\/a><\/li>\n\n\n\n2026-06-10_160803z_to_2026-06-11_085204z_navtex band<\/a>High contrast, UTC version with navtex time-slots overlay<\/a><\/li>\n\n\n\n2026-06-09_160803z_to_2026-06-10_085204z_navtex band<\/a>High contrast, UTC version with navtex time-slots overlay<\/a><\/li>\n\n\n\n2026-06-08_160803z_to_2026-06-09_085204z_navtex band<\/a>High contrast, UTC version with navtex time-slot overlay<\/a><\/li>\n\n\n\n2026-06-07_160803z_to_2026-06-08_085204z_navtex band<\/a>High contrast, UTC version with navtex time-slot overlay<\/a><\/li>\n<\/ul>\n\n\n\n<\/p>\n","protected":false},"excerpt":{"rendered":"Here’s you’ll find links to a daily spectrogram for the NAVTEX MW sub-band, recorded at Cobh, Cork Harbour, Ireland, IO51uu during June 2026. I started saving these first, on the 7th of June 2026. Each spectrogram covers a 16h 44m period, that being the length of the longest night of the year here, with 15m […]<\/p>\n","protected":false},"author":1,"featured_media":279,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7,19,6],"tags":[],"class_list":["post-272","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-listening","category-navtex","category-operating"],"_links":{"self":[{"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/posts\/272","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/comments?post=272"}],"version-history":[{"count":18,"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/posts\/272\/revisions"}],"predecessor-version":[{"id":464,"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/posts\/272\/revisions\/464"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/media\/279"}],"wp:attachment":[{"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/media?parent=272"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/categories?post=272"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/tags?post=272"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}](\"https:\/\/ei4hq.ie\/test\/wp-content\/uploads\/2026\/06\/2026-06-16_160803z_to_2026-06-17_085204z_navtex_band_proc.png\"){kind=link}
![2026-06-15_160803z_to_2026-06-16_085204z_navtex band<\/a>](\"https:\/\/ei4hq.ie\/test\/wp-content\/uploads\/2026\/06\/2026-06-15_160803z_to_2026-06-16_085204z_navtex_band.png\"){kind=link}
![High contrast, UTC version with navtex time-slots overlay<\/a><\/li>\n\n\n\n2026-06-14_160803z_to_2026-06-15_085204z_navtex band<\/a>High contrast, UTC version with navtex time-slots overlay<\/a><\/li>\n\n\n\n2026-06-13_160803z_to_2026-06-14_085204z_navtex band<\/a>High contrast, UTC version with navtex time-slots overlay<\/a><\/li>\n\n\n\n2026-06-12_160803z_to_2026-06-13_085204z_navtex band<\/a>High contrast, UTC version with navtex time-slots overlay<\/a><\/li>\n\n\n\n2026-06-11_160803z_to_2026-06-12_085204z_navtex band<\/a>High contrast, UTC version with navtex time-slots overlay<\/a><\/li>\n\n\n\n2026-06-10_160803z_to_2026-06-11_085204z_navtex band<\/a>High contrast, UTC version with navtex time-slots overlay<\/a><\/li>\n\n\n\n2026-06-09_160803z_to_2026-06-10_085204z_navtex band<\/a>High contrast, UTC version with navtex time-slots overlay<\/a><\/li>\n\n\n\n2026-06-08_160803z_to_2026-06-09_085204z_navtex band<\/a>High contrast, UTC version with navtex time-slot overlay<\/a><\/li>\n\n\n\n2026-06-07_160803z_to_2026-06-08_085204z_navtex band<\/a>High contrast, UTC version with navtex time-slot overlay<\/a><\/li>\n<\/ul>\n\n\n\n<\/p>\n","protected":false},"excerpt":{"rendered":"Here’s you’ll find links to a daily spectrogram for the NAVTEX MW sub-band, recorded at Cobh, Cork Harbour, Ireland, IO51uu during June 2026. I started saving these first, on the 7th of June 2026. Each spectrogram covers a 16h 44m period, that being the length of the longest night of the year here, with 15m […]<\/p>\n","protected":false},"author":1,"featured_media":279,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7,19,6],"tags":[],"class_list":["post-272","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-listening","category-navtex","category-operating"],"_links":{"self":[{"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/posts\/272","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/comments?post=272"}],"version-history":[{"count":18,"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/posts\/272\/revisions"}],"predecessor-version":[{"id":464,"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/posts\/272\/revisions\/464"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/media\/279"}],"wp:attachment":[{"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/media?parent=272"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/categories?post=272"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/tags?post=272"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}](\"https:\/\/ei4hq.ie\/test\/wp-content\/uploads\/2026\/06\/2026-06-15_160803z_to_2026-06-16_085204z_navtex_band_proc.png\"){kind=link}
![2026-06-14_160803z_to_2026-06-15_085204z_navtex band<\/a>](\"https:\/\/ei4hq.ie\/test\/wp-content\/uploads\/2026\/06\/2026-06-14_160803z_to_2026-06-15_085204z_navtex_band.png\"){kind=link}
![High contrast, UTC version with navtex time-slots overlay<\/a><\/li>\n\n\n\n2026-06-13_160803z_to_2026-06-14_085204z_navtex band<\/a>High contrast, UTC version with navtex time-slots overlay<\/a><\/li>\n\n\n\n2026-06-12_160803z_to_2026-06-13_085204z_navtex band<\/a>High contrast, UTC version with navtex time-slots overlay<\/a><\/li>\n\n\n\n2026-06-11_160803z_to_2026-06-12_085204z_navtex band<\/a>High contrast, UTC version with navtex time-slots overlay<\/a><\/li>\n\n\n\n2026-06-10_160803z_to_2026-06-11_085204z_navtex band<\/a>High contrast, UTC version with navtex time-slots overlay<\/a><\/li>\n\n\n\n2026-06-09_160803z_to_2026-06-10_085204z_navtex band<\/a>High contrast, UTC version with navtex time-slots overlay<\/a><\/li>\n\n\n\n2026-06-08_160803z_to_2026-06-09_085204z_navtex band<\/a>High contrast, UTC version with navtex time-slot overlay<\/a><\/li>\n\n\n\n2026-06-07_160803z_to_2026-06-08_085204z_navtex band<\/a>High contrast, UTC version with navtex time-slot overlay<\/a><\/li>\n<\/ul>\n\n\n\n<\/p>\n","protected":false},"excerpt":{"rendered":"Here’s you’ll find links to a daily spectrogram for the NAVTEX MW sub-band, recorded at Cobh, Cork Harbour, Ireland, IO51uu during June 2026. I started saving these first, on the 7th of June 2026. Each spectrogram covers a 16h 44m period, that being the length of the longest night of the year here, with 15m […]<\/p>\n","protected":false},"author":1,"featured_media":279,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7,19,6],"tags":[],"class_list":["post-272","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-listening","category-navtex","category-operating"],"_links":{"self":[{"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/posts\/272","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/comments?post=272"}],"version-history":[{"count":18,"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/posts\/272\/revisions"}],"predecessor-version":[{"id":464,"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/posts\/272\/revisions\/464"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/media\/279"}],"wp:attachment":[{"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/media?parent=272"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/categories?post=272"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/tags?post=272"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}](\"https:\/\/ei4hq.ie\/test\/wp-content\/uploads\/2026\/06\/2026-06-14_160803z_to_2026-06-15_085204z_navtex_band_proc.png\"){kind=link}
![2026-06-13_160803z_to_2026-06-14_085204z_navtex band<\/a>](\"https:\/\/ei4hq.ie\/test\/wp-content\/uploads\/2026\/06\/2026-06-13_160803z_to_2026-06-14_085204z_navtex_band.png\"){kind=link}
![High contrast, UTC version with navtex time-slots overlay<\/a><\/li>\n\n\n\n2026-06-12_160803z_to_2026-06-13_085204z_navtex band<\/a>High contrast, UTC version with navtex time-slots overlay<\/a><\/li>\n\n\n\n2026-06-11_160803z_to_2026-06-12_085204z_navtex band<\/a>High contrast, UTC version with navtex time-slots overlay<\/a><\/li>\n\n\n\n2026-06-10_160803z_to_2026-06-11_085204z_navtex band<\/a>High contrast, UTC version with navtex time-slots overlay<\/a><\/li>\n\n\n\n2026-06-09_160803z_to_2026-06-10_085204z_navtex band<\/a>High contrast, UTC version with navtex time-slots overlay<\/a><\/li>\n\n\n\n2026-06-08_160803z_to_2026-06-09_085204z_navtex band<\/a>High contrast, UTC version with navtex time-slot overlay<\/a><\/li>\n\n\n\n2026-06-07_160803z_to_2026-06-08_085204z_navtex band<\/a>High contrast, UTC version with navtex time-slot overlay<\/a><\/li>\n<\/ul>\n\n\n\n<\/p>\n","protected":false},"excerpt":{"rendered":"Here’s you’ll find links to a daily spectrogram for the NAVTEX MW sub-band, recorded at Cobh, Cork Harbour, Ireland, IO51uu during June 2026. I started saving these first, on the 7th of June 2026. Each spectrogram covers a 16h 44m period, that being the length of the longest night of the year here, with 15m […]<\/p>\n","protected":false},"author":1,"featured_media":279,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7,19,6],"tags":[],"class_list":["post-272","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-listening","category-navtex","category-operating"],"_links":{"self":[{"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/posts\/272","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/comments?post=272"}],"version-history":[{"count":18,"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/posts\/272\/revisions"}],"predecessor-version":[{"id":464,"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/posts\/272\/revisions\/464"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/media\/279"}],"wp:attachment":[{"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/media?parent=272"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/categories?post=272"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/tags?post=272"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}](\"https:\/\/ei4hq.ie\/test\/wp-content\/uploads\/2026\/06\/2026-06-13_160803z_to_2026-06-14_085204z_navtex_band_proc.png\"){kind=link}
![2026-06-12_160803z_to_2026-06-13_085204z_navtex band<\/a>](\"https:\/\/ei4hq.ie\/test\/wp-content\/uploads\/2026\/06\/2026-06-12_160803z_to_2026-06-13_085204z_navtex-band.png\"){kind=link}
![High contrast, UTC version with navtex time-slots overlay<\/a><\/li>\n\n\n\n2026-06-11_160803z_to_2026-06-12_085204z_navtex band<\/a>High contrast, UTC version with navtex time-slots overlay<\/a><\/li>\n\n\n\n2026-06-10_160803z_to_2026-06-11_085204z_navtex band<\/a>High contrast, UTC version with navtex time-slots overlay<\/a><\/li>\n\n\n\n2026-06-09_160803z_to_2026-06-10_085204z_navtex band<\/a>High contrast, UTC version with navtex time-slots overlay<\/a><\/li>\n\n\n\n2026-06-08_160803z_to_2026-06-09_085204z_navtex band<\/a>High contrast, UTC version with navtex time-slot overlay<\/a><\/li>\n\n\n\n2026-06-07_160803z_to_2026-06-08_085204z_navtex band<\/a>High contrast, UTC version with navtex time-slot overlay<\/a><\/li>\n<\/ul>\n\n\n\n<\/p>\n","protected":false},"excerpt":{"rendered":"Here’s you’ll find links to a daily spectrogram for the NAVTEX MW sub-band, recorded at Cobh, Cork Harbour, Ireland, IO51uu during June 2026. I started saving these first, on the 7th of June 2026. Each spectrogram covers a 16h 44m period, that being the length of the longest night of the year here, with 15m […]<\/p>\n","protected":false},"author":1,"featured_media":279,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7,19,6],"tags":[],"class_list":["post-272","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-listening","category-navtex","category-operating"],"_links":{"self":[{"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/posts\/272","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/comments?post=272"}],"version-history":[{"count":18,"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/posts\/272\/revisions"}],"predecessor-version":[{"id":464,"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/posts\/272\/revisions\/464"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/media\/279"}],"wp:attachment":[{"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/media?parent=272"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/categories?post=272"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/tags?post=272"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}](\"https:\/\/ei4hq.ie\/test\/wp-content\/uploads\/2026\/06\/2026-06-12_160803z_to_2026-06-13_085204z_navtex_band_proc.png\"){kind=link}
![2026-06-11_160803z_to_2026-06-12_085204z_navtex band<\/a>](\"https:\/\/ei4hq.ie\/test\/wp-content\/uploads\/2026\/06\/2026-06-11_160803z_to_2026-06-12_085204z_navtex-band.png\"){kind=link}
![High contrast, UTC version with navtex time-slots overlay<\/a><\/li>\n\n\n\n2026-06-10_160803z_to_2026-06-11_085204z_navtex band<\/a>High contrast, UTC version with navtex time-slots overlay<\/a><\/li>\n\n\n\n2026-06-09_160803z_to_2026-06-10_085204z_navtex band<\/a>High contrast, UTC version with navtex time-slots overlay<\/a><\/li>\n\n\n\n2026-06-08_160803z_to_2026-06-09_085204z_navtex band<\/a>High contrast, UTC version with navtex time-slot overlay<\/a><\/li>\n\n\n\n2026-06-07_160803z_to_2026-06-08_085204z_navtex band<\/a>High contrast, UTC version with navtex time-slot overlay<\/a><\/li>\n<\/ul>\n\n\n\n<\/p>\n","protected":false},"excerpt":{"rendered":"Here’s you’ll find links to a daily spectrogram for the NAVTEX MW sub-band, recorded at Cobh, Cork Harbour, Ireland, IO51uu during June 2026. I started saving these first, on the 7th of June 2026. Each spectrogram covers a 16h 44m period, that being the length of the longest night of the year here, with 15m […]<\/p>\n","protected":false},"author":1,"featured_media":279,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7,19,6],"tags":[],"class_list":["post-272","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-listening","category-navtex","category-operating"],"_links":{"self":[{"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/posts\/272","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/comments?post=272"}],"version-history":[{"count":18,"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/posts\/272\/revisions"}],"predecessor-version":[{"id":464,"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/posts\/272\/revisions\/464"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/media\/279"}],"wp:attachment":[{"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/media?parent=272"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/categories?post=272"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/tags?post=272"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}](\"https:\/\/ei4hq.ie\/test\/wp-content\/uploads\/2026\/06\/2026-06-11_160803z_to_2026-06-12_085204z_navtex_band_proc.png\"){kind=link}
![2026-06-10_160803z_to_2026-06-11_085204z_navtex band<\/a>](\"https:\/\/ei4hq.ie\/test\/wp-content\/uploads\/2026\/06\/2026-06-10_160803z_to_2026-06-11_085204z_navtex-band.png\"){kind=link}
![High contrast, UTC version with navtex time-slots overlay<\/a><\/li>\n\n\n\n2026-06-09_160803z_to_2026-06-10_085204z_navtex band<\/a>High contrast, UTC version with navtex time-slots overlay<\/a><\/li>\n\n\n\n2026-06-08_160803z_to_2026-06-09_085204z_navtex band<\/a>High contrast, UTC version with navtex time-slot overlay<\/a><\/li>\n\n\n\n2026-06-07_160803z_to_2026-06-08_085204z_navtex band<\/a>High contrast, UTC version with navtex time-slot overlay<\/a><\/li>\n<\/ul>\n\n\n\n<\/p>\n","protected":false},"excerpt":{"rendered":"Here’s you’ll find links to a daily spectrogram for the NAVTEX MW sub-band, recorded at Cobh, Cork Harbour, Ireland, IO51uu during June 2026. I started saving these first, on the 7th of June 2026. Each spectrogram covers a 16h 44m period, that being the length of the longest night of the year here, with 15m […]<\/p>\n","protected":false},"author":1,"featured_media":279,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7,19,6],"tags":[],"class_list":["post-272","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-listening","category-navtex","category-operating"],"_links":{"self":[{"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/posts\/272","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/comments?post=272"}],"version-history":[{"count":18,"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/posts\/272\/revisions"}],"predecessor-version":[{"id":464,"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/posts\/272\/revisions\/464"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/media\/279"}],"wp:attachment":[{"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/media?parent=272"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/categories?post=272"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/tags?post=272"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}](\"https:\/\/ei4hq.ie\/test\/wp-content\/uploads\/2026\/06\/2026-06-10_160803z_to_2026-06-11_085204z_navtex-band_proc.png\"){kind=link}
![2026-06-09_160803z_to_2026-06-10_085204z_navtex band<\/a>](\"https:\/\/ei4hq.ie\/test\/wp-content\/uploads\/2026\/06\/2026-06-09_160803z_to_2026-06-10_085204z_navtex-band.png\"){kind=link}
![High contrast, UTC version with navtex time-slots overlay<\/a><\/li>\n\n\n\n2026-06-08_160803z_to_2026-06-09_085204z_navtex band<\/a>High contrast, UTC version with navtex time-slot overlay<\/a><\/li>\n\n\n\n2026-06-07_160803z_to_2026-06-08_085204z_navtex band<\/a>High contrast, UTC version with navtex time-slot overlay<\/a><\/li>\n<\/ul>\n\n\n\n<\/p>\n","protected":false},"excerpt":{"rendered":"Here’s you’ll find links to a daily spectrogram for the NAVTEX MW sub-band, recorded at Cobh, Cork Harbour, Ireland, IO51uu during June 2026. I started saving these first, on the 7th of June 2026. Each spectrogram covers a 16h 44m period, that being the length of the longest night of the year here, with 15m […]<\/p>\n","protected":false},"author":1,"featured_media":279,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7,19,6],"tags":[],"class_list":["post-272","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-listening","category-navtex","category-operating"],"_links":{"self":[{"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/posts\/272","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/comments?post=272"}],"version-history":[{"count":18,"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/posts\/272\/revisions"}],"predecessor-version":[{"id":464,"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/posts\/272\/revisions\/464"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/media\/279"}],"wp:attachment":[{"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/media?parent=272"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/categories?post=272"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/tags?post=272"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}](\"https:\/\/ei4hq.ie\/test\/wp-content\/uploads\/2026\/06\/2026-06-09_160803z_to_2026-06-10_085204z_navtex-band_proc.png\"){kind=link}
![2026-06-08_160803z_to_2026-06-09_085204z_navtex band<\/a>](\"https:\/\/ei4hq.ie\/test\/wp-content\/uploads\/2026\/06\/2026-06-08_160803z_to_2026-06-09_085204z_navtex-band.png\"){kind=link}
![High contrast, UTC version with navtex time-slot overlay<\/a><\/li>\n\n\n\n2026-06-07_160803z_to_2026-06-08_085204z_navtex band<\/a>High contrast, UTC version with navtex time-slot overlay<\/a><\/li>\n<\/ul>\n\n\n\n<\/p>\n","protected":false},"excerpt":{"rendered":"Here’s you’ll find links to a daily spectrogram for the NAVTEX MW sub-band, recorded at Cobh, Cork Harbour, Ireland, IO51uu during June 2026. I started saving these first, on the 7th of June 2026. Each spectrogram covers a 16h 44m period, that being the length of the longest night of the year here, with 15m […]<\/p>\n","protected":false},"author":1,"featured_media":279,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7,19,6],"tags":[],"class_list":["post-272","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-listening","category-navtex","category-operating"],"_links":{"self":[{"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/posts\/272","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/comments?post=272"}],"version-history":[{"count":18,"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/posts\/272\/revisions"}],"predecessor-version":[{"id":464,"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/posts\/272\/revisions\/464"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/media\/279"}],"wp:attachment":[{"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/media?parent=272"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/categories?post=272"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/tags?post=272"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}](\"https:\/\/ei4hq.ie\/test\/wp-content\/uploads\/2026\/06\/2026-06-08_160803z_to_2026-06-09_085204z_navtex_band_proc.png\"){kind=link}
![2026-06-07_160803z_to_2026-06-08_085204z_navtex band<\/a>](\"https:\/\/ei4hq.ie\/test\/wp-content\/uploads\/2026\/06\/2026-06-07_160803z_to_2026-06-08_085204z_navtex-band.png\"){kind=link}
![High contrast, UTC version with navtex time-slot overlay<\/a><\/li>\n<\/ul>\n\n\n\n<\/p>\n","protected":false},"excerpt":{"rendered":"Here’s you’ll find links to a daily spectrogram for the NAVTEX MW sub-band, recorded at Cobh, Cork Harbour, Ireland, IO51uu during June 2026. I started saving these first, on the 7th of June 2026. Each spectrogram covers a 16h 44m period, that being the length of the longest night of the year here, with 15m […]<\/p>\n","protected":false},"author":1,"featured_media":279,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7,19,6],"tags":[],"class_list":["post-272","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-listening","category-navtex","category-operating"],"_links":{"self":[{"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/posts\/272","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/comments?post=272"}],"version-history":[{"count":18,"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/posts\/272\/revisions"}],"predecessor-version":[{"id":464,"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/posts\/272\/revisions\/464"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/media\/279"}],"wp:attachment":[{"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/media?parent=272"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/categories?post=272"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ei4hq.ie\/test\/wp-json\/wp\/v2\/tags?post=272"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}](\"https:\/\/ei4hq.ie\/test\/wp-content\/uploads\/2026\/06\/2026-06-07_160803z_to_2026-06-08_085204z_navtex_band_proc.png\"){kind=link}