{"id":283,"date":"2017-12-12T21:19:09","date_gmt":"2017-12-13T05:19:09","guid":{"rendered":"https:\/\/ad6dm.net\/log\/?p=283"},"modified":"2017-12-12T21:27:09","modified_gmt":"2017-12-13T05:27:09","slug":"what-is-this-transmission","status":"publish","type":"post","link":"https:\/\/ad6dm.net\/log\/2017\/12\/what-is-this-transmission\/","title":{"rendered":"What is this transmission?"},"content":{"rendered":"<p>I checked in to <a href=\"http:\/\/w6vvr.net\/\" target=\"_blank\" rel=\"noopener\">W6VVR<\/a> Vaca Valley Radio Club net this evening and they said post-net they&#8217;d be hopping on to 7.190MHz. Quickly set up my <a href=\"http:\/\/qrznow.com\/wp-content\/uploads\/2015\/11\/MFJ-1622Pic7.jpg\" target=\"_blank\" rel=\"noopener\">bugcatcher<\/a> for 40m and listened, but nothing heard, except for a QSO in progress on 7.192 from Arizona to Los Angeles.<\/p>\n<p>So I thought I&#8217;d tune around on the new Extra sections of 7.075-7.100MHz (Hawaii and Alaska can use this for voice, but we mainlanders can&#8217;t.) Was expecting CW and perhaps some blurty digital sounds.<\/p>\n<p>Instead I found this:<\/p>\n<p><span class=\"embed-youtube\" style=\"text-align:center; display: block;\"><iframe loading=\"lazy\" class=\"youtube-player\" width=\"1160\" height=\"653\" src=\"https:\/\/www.youtube.com\/embed\/mvkWdpZFwPQ?version=3&#038;rel=1&#038;showsearch=0&#038;showinfo=1&#038;iv_load_policy=1&#038;fs=1&#038;hl=en-US&#038;autohide=2&#038;wmode=transparent\" allowfullscreen=\"true\" style=\"border:0;\" sandbox=\"allow-scripts allow-same-origin allow-popups allow-presentation allow-popups-to-escape-sandbox\"><\/iframe><\/span><\/p>\n<p>What is this? I imagine it&#8217;s a digital mode (somewhat like Olivia) but I&#8217;ve never heard anything like it. Makes me think of a harmonic alien transmission.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>I checked in to W6VVR Vaca Valley Radio Club net this evening and they said post-net they&#8217;d be hopping on to 7.190MHz. Quickly set up my bugcatcher for 40m and listened, but nothing heard, except for a QSO in progress on 7.192 from Arizona to Los Angeles. So I thought I&#8217;d tune around on the new Extra sections of 7.075-7.100MHz (Hawaii and Alaska can use this for voice, but we mainlanders can&#8217;t.) Was expecting CW and perhaps some blurty digital sounds. Instead I found this: What is this? I imagine it&#8217;s a digital mode (somewhat like Olivia) but I&#8217;ve never heard anything like it. Makes me think of a harmonic&hellip; <a class=\"read-more\" href=\"https:\/\/ad6dm.net\/log\/2017\/12\/what-is-this-transmission\/\">Read More<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"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":[5,6],"tags":[15,23],"class_list":["post-283","post","type-post","status-publish","format-standard","hentry","category-digital","category-ssb","tag-digital","tag-hf"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p9naFX-4z","jetpack_likes_enabled":true,"jetpack-related-posts":[{"id":474,"url":"https:\/\/ad6dm.net\/log\/2018\/04\/sent-first-sstv-image\/","url_meta":{"origin":283,"position":0},"title":"Sent first SSTV image","author":"AD6DM","date":"April 4, 2018","format":false,"excerpt":"Using\u00a0SSTV for iOS\u00a0on my phone and a\u00a0BTECH APRS-K1 Audio Interface Cable\u00a0(albeit connected to a Kenwood TH-D74A), I just sent my first SSTV image on 145.510 MHz FM simplex. I don't think anyone heard, but it was a proof of concept exercise. I recorded the transmission on a separate handheld, using\u2026","rel":"","context":"In &quot;Digital&quot;","block_context":{"text":"Digital","link":"https:\/\/ad6dm.net\/log\/category\/digital\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":736,"url":"https:\/\/ad6dm.net\/log\/2019\/02\/how-to-create-a-multi-mode-xreflector\/","url_meta":{"origin":283,"position":1},"title":"How to Create a Multi-Mode XReflector","author":"AD6DM","date":"February 4, 2019","format":false,"excerpt":"JerryNet is so named because one bored commute home, KG6HQD Jerry went on his DStar radio and connected to REF012A to see if anyone wanted to talk. This became a regular thing and JerryNet\u2122 was born. Later we started talking about how to include other digital voice modes such as\u2026","rel":"","context":"In &quot;Digital&quot;","block_context":{"text":"Digital","link":"https:\/\/ad6dm.net\/log\/category\/digital\/"},"img":{"alt_text":"Diagram of Three-mode cross link DStar\/Fusion\/BM DMR","src":"https:\/\/i0.wp.com\/ad6dm.net\/log\/wp-content\/uploads\/2019\/02\/Phase3.png?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/ad6dm.net\/log\/wp-content\/uploads\/2019\/02\/Phase3.png?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/ad6dm.net\/log\/wp-content\/uploads\/2019\/02\/Phase3.png?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/ad6dm.net\/log\/wp-content\/uploads\/2019\/02\/Phase3.png?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":327,"url":"https:\/\/ad6dm.net\/log\/2018\/01\/80m-rtty\/","url_meta":{"origin":283,"position":2},"title":"80m RTTY","author":"AD6DM","date":"January 11, 2018","format":false,"excerpt":"I found a load of RTTY on 80m band on Sunday night (1\/7\/2018). I tuned to 3580 kHz and found a particularly strong signal, so I hooked up my USB soundcard to my laptop, fired up fldigi and made attempts to reply, but I guess my QRP setup didn't get\u2026","rel":"","context":"In &quot;Digital&quot;","block_context":{"text":"Digital","link":"https:\/\/ad6dm.net\/log\/category\/digital\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":718,"url":"https:\/\/ad6dm.net\/log\/2019\/01\/dstar-and-ysf-dmr-reflectors-are-live\/","url_meta":{"origin":283,"position":3},"title":"DStar and YSF\/DMR Reflectors are Live","author":"AD6DM","date":"January 21, 2019","format":false,"excerpt":"XLX367 reflector is live! Update: February 2019: All three modes DStar, YSF, and DMR are now crosslinked! DStar REF367A (also XRF367A and DCS367A) is up an running. This is a new multi-protocol DStar Digital Voice reflector, running in the cloud. It is available for public use and is tied primarily\u2026","rel":"","context":"In &quot;Digital&quot;","block_context":{"text":"Digital","link":"https:\/\/ad6dm.net\/log\/category\/digital\/"},"img":{"alt_text":"XLX reflector 367","src":"https:\/\/i0.wp.com\/ad6dm.net\/log\/wp-content\/uploads\/2019\/01\/Screen-Shot-2019-01-21-at-7.04.57-AM-300x134.png?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/ad6dm.net\/log\/wp-content\/uploads\/2019\/01\/Screen-Shot-2019-01-21-at-7.04.57-AM-300x134.png?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/ad6dm.net\/log\/wp-content\/uploads\/2019\/01\/Screen-Shot-2019-01-21-at-7.04.57-AM-300x134.png?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/ad6dm.net\/log\/wp-content\/uploads\/2019\/01\/Screen-Shot-2019-01-21-at-7.04.57-AM-300x134.png?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":715,"url":"https:\/\/ad6dm.net\/log\/2019\/01\/build-your-own-dmr-dstar-fusion-hotspot-for-cheap\/","url_meta":{"origin":283,"position":4},"title":"Build Your Own DMR\/DStar\/Fusion Hotspot for CHEAP","author":"AD6DM","date":"January 13, 2019","format":false,"excerpt":"In an effort to get more people on digital ham radio easily, I posted a video about how to put together your own multi-mode digital voice hotspot device very inexpensively, and with little effort. I have put together several of these and the work pretty well. Kind of like an\u2026","rel":"","context":"In &quot;Digital&quot;","block_context":{"text":"Digital","link":"https:\/\/ad6dm.net\/log\/category\/digital\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":104,"url":"https:\/\/ad6dm.net\/log\/2017\/10\/ham-code-guide\/","url_meta":{"origin":283,"position":5},"title":"Ham Code Guide","author":"kf6ujs","date":"October 29, 2017","format":false,"excerpt":"Spurred by the previous post, I'm using the Koch method for learning Morse code (CW). I'm attaching here a document I made back when I first became a ham in 1999 that is a quick reference for prosigns and Q-Codes. Morse is also there, but I do not recommend CW\u2026","rel":"","context":"In &quot;CW&quot;","block_context":{"text":"CW","link":"https:\/\/ad6dm.net\/log\/category\/cw\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]}],"_links":{"self":[{"href":"https:\/\/ad6dm.net\/log\/wp-json\/wp\/v2\/posts\/283","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ad6dm.net\/log\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ad6dm.net\/log\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ad6dm.net\/log\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ad6dm.net\/log\/wp-json\/wp\/v2\/comments?post=283"}],"version-history":[{"count":3,"href":"https:\/\/ad6dm.net\/log\/wp-json\/wp\/v2\/posts\/283\/revisions"}],"predecessor-version":[{"id":286,"href":"https:\/\/ad6dm.net\/log\/wp-json\/wp\/v2\/posts\/283\/revisions\/286"}],"wp:attachment":[{"href":"https:\/\/ad6dm.net\/log\/wp-json\/wp\/v2\/media?parent=283"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ad6dm.net\/log\/wp-json\/wp\/v2\/categories?post=283"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ad6dm.net\/log\/wp-json\/wp\/v2\/tags?post=283"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}