{"id":20071,"date":"2021-02-04T01:32:57","date_gmt":"2021-02-04T06:32:57","guid":{"rendered":"https:\/\/reactivemusic.net\/?p=20071"},"modified":"2024-12-15T00:46:10","modified_gmt":"2024-12-15T05:46:10","slug":"gqrx-sdr-with-max-mac-os","status":"publish","type":"post","link":"https:\/\/reactivemusic.net\/?p=20071","title":{"rendered":"Gqrx SDR with Max Mac OS"},"content":{"rendered":"

More notes: 2024\/12\/15:<\/h3>\n

It looks like you can pipe a stereo UDP audio stream out of GQRX. See this note: (from\u00a0https:\/\/github.com\/gqrx-sdr\/gqrx\/issues\/868#issuecomment-727695048<\/a><\/p>\n

\n

As a basis, maybe a 48ksps complex IQ output is a good idea.<\/p>\n<\/blockquote>\n

This already exists. Select “Raw I\/Q” mode in the Receiver Options panel, widen the filter, then click the “…” button in the lower right corner of the Audio panel and enable the Stereo option in the Network tab.<\/p>\n

Notes gqrx – piping I\/Q audio stream into Max<\/h3>\n

Update: Looks like we need to widen the filter, as described above. And consider using udp streamed audio as an alternative. But its now working well with GQRX 2.17.6 on m3 mac sequoia.<\/p>\n

Will need to find out if its possible for Max to read UDP audio streams, and if its possible to increase the sample rate beyond 48k<\/p>\n

Also we can build a scaled down sdr in max and send the freq data via the sadam tcp libraries.<\/p>\n

https:\/\/github.com\/csete\/gqrx<\/a> Information here on adding hardware drivers.<\/p>\n

\n

Install gqrx with macports:<\/p>\n

sudo port install gqrx<\/p>\n

\n

Install gtelnet with macports (Mac OS has jettisoned telnet)<\/p>\n

sudo port install inetutils<\/p>\n

\n

Here’s a list of telnet commands that work with gqrx:\u00a0https:\/\/gqrx.dk\/doc\/remote-control<\/a><\/p>\n

For some reason gqrx not accepting ivp4 addresses. Need to telnet the frequency commands using this:<\/p>\n

gtelnet ::ffff:127.0.0.1 7356<\/span><\/p>\n

actually this netcat command works too. Make sure to use double quotes:<\/p>\n

echo “F 7015000” | nc -w 1 ::ffff:127.0.0.1 7356<\/span><\/p>\n

update 2024\/12\/14: this simpler command works with current gqrx<\/p>\n

echo 'F 7033000' | nc -w 1 127.0.0.1 7356<\/span><\/pre>\n
\n
In gqrx, select the I\/Q demodulator and set the audio output to blackhole 2ch<\/p>\n
\n
For some reason, you can’t set the audio output sr to anything other than 48 KHz. This is apparently a feature. So the I\/Q output bandwidth is limited, therefore no Wide band FM.<\/p>\n
Unfortunately UDP audio streaming is limited to 1 channel, so no chance of I\/Q streaming:\u00a0https:\/\/gqrx.dk\/doc\/streaming-audio-over-udp<\/a><\/p>\n
 <\/p>\n","protected":false},"excerpt":{"rendered":"
More notes: 2024\/12\/15: It looks like you can pipe a stereo UDP audio stream out of GQRX. See this note: (from\u00a0https:\/\/github.com\/gqrx-sdr\/gqrx\/issues\/868#issuecomment-727695048 As a basis, maybe a 48ksps complex IQ output is a good idea. This already exists. Select “Raw I\/Q” mode in the Receiver Options panel, widen the filter, then click the “…” button in … <\/p>\n
Continue reading “Gqrx SDR with Max Mac OS”<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_coblocks_attr":"","_coblocks_dimensions":"","_coblocks_responsive_height":"","_coblocks_accordion_ie_support":"","footnotes":""},"categories":[1],"tags":[],"class_list":["post-20071","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"\nGqrx SDR with Max Mac OS - reactive music<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/reactivemusic.net\/?p=20071\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Gqrx SDR with Max Mac OS - reactive music\" \/>\n<meta property=\"og:description\" content=\"More notes: 2024\/12\/15: It looks like you can pipe a stereo UDP audio stream out of GQRX. See this note: (from\u00a0https:\/\/github.com\/gqrx-sdr\/gqrx\/issues\/868#issuecomment-727695048 As a basis, maybe a 48ksps complex IQ output is a good idea. This already exists. Select “Raw I\/Q” mode in the Receiver Options panel, widen the filter, then click the “…” button in … Continue reading "Gqrx SDR with Max Mac OS"\" \/>\n<meta property=\"og:url\" content=\"https:\/\/reactivemusic.net\/?p=20071\" \/>\n<meta property=\"og:site_name\" content=\"reactive music\" \/>\n<meta property=\"article:published_time\" content=\"2021-02-04T06:32:57+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-12-15T05:46:10+00:00\" \/>\n<meta name=\"author\" content=\"Tom Zicarelli\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Tom Zicarelli\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/reactivemusic.net\\\/?p=20071#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/reactivemusic.net\\\/?p=20071\"},\"author\":{\"name\":\"Tom Zicarelli\",\"@id\":\"https:\\\/\\\/reactivemusic.net\\\/#\\\/schema\\\/person\\\/56224d281582df7e5518e037ca63e571\"},\"headline\":\"Gqrx SDR with Max Mac OS\",\"datePublished\":\"2021-02-04T06:32:57+00:00\",\"dateModified\":\"2024-12-15T05:46:10+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/reactivemusic.net\\\/?p=20071\"},\"wordCount\":333,\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/reactivemusic.net\\\/?p=20071\",\"url\":\"https:\\\/\\\/reactivemusic.net\\\/?p=20071\",\"name\":\"Gqrx SDR with Max Mac OS - reactive music\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/reactivemusic.net\\\/#website\"},\"datePublished\":\"2021-02-04T06:32:57+00:00\",\"dateModified\":\"2024-12-15T05:46:10+00:00\",\"author\":{\"@id\":\"https:\\\/\\\/reactivemusic.net\\\/#\\\/schema\\\/person\\\/56224d281582df7e5518e037ca63e571\"},\"breadcrumb\":{\"@id\":\"https:\\\/\\\/reactivemusic.net\\\/?p=20071#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/reactivemusic.net\\\/?p=20071\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/reactivemusic.net\\\/?p=20071#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/reactivemusic.net\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Gqrx SDR with Max Mac OS\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/reactivemusic.net\\\/#website\",\"url\":\"https:\\\/\\\/reactivemusic.net\\\/\",\"name\":\"reactive music\",\"description\":\"\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/reactivemusic.net\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/reactivemusic.net\\\/#\\\/schema\\\/person\\\/56224d281582df7e5518e037ca63e571\",\"name\":\"Tom Zicarelli\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/0da58cf21a2707dd335b204b8ed3cd9194dcbf9d9814ac5d71195a65c76c8a72?s=96&d=mm&r=g\",\"url\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/0da58cf21a2707dd335b204b8ed3cd9194dcbf9d9814ac5d71195a65c76c8a72?s=96&d=mm&r=g\",\"contentUrl\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/0da58cf21a2707dd335b204b8ed3cd9194dcbf9d9814ac5d71195a65c76c8a72?s=96&d=mm&r=g\",\"caption\":\"Tom Zicarelli\"},\"sameAs\":[\"http:\\\/\\\/tomzicarelli.com\"],\"url\":\"https:\\\/\\\/reactivemusic.net\\\/?author=2\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Gqrx SDR with Max Mac OS - reactive music","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/reactivemusic.net\/?p=20071","og_locale":"en_US","og_type":"article","og_title":"Gqrx SDR with Max Mac OS - reactive music","og_description":"More notes: 2024\/12\/15: It looks like you can pipe a stereo UDP audio stream out of GQRX. See this note: (from\u00a0https:\/\/github.com\/gqrx-sdr\/gqrx\/issues\/868#issuecomment-727695048 As a basis, maybe a 48ksps complex IQ output is a good idea. This already exists. Select “Raw I\/Q” mode in the Receiver Options panel, widen the filter, then click the “…” button in … Continue reading \"Gqrx SDR with Max Mac OS\"","og_url":"https:\/\/reactivemusic.net\/?p=20071","og_site_name":"reactive music","article_published_time":"2021-02-04T06:32:57+00:00","article_modified_time":"2024-12-15T05:46:10+00:00","author":"Tom Zicarelli","twitter_card":"summary_large_image","twitter_misc":{"Written by":"Tom Zicarelli","Est. reading time":"2 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/reactivemusic.net\/?p=20071#article","isPartOf":{"@id":"https:\/\/reactivemusic.net\/?p=20071"},"author":{"name":"Tom Zicarelli","@id":"https:\/\/reactivemusic.net\/#\/schema\/person\/56224d281582df7e5518e037ca63e571"},"headline":"Gqrx SDR with Max Mac OS","datePublished":"2021-02-04T06:32:57+00:00","dateModified":"2024-12-15T05:46:10+00:00","mainEntityOfPage":{"@id":"https:\/\/reactivemusic.net\/?p=20071"},"wordCount":333,"inLanguage":"en-US"},{"@type":"WebPage","@id":"https:\/\/reactivemusic.net\/?p=20071","url":"https:\/\/reactivemusic.net\/?p=20071","name":"Gqrx SDR with Max Mac OS - reactive music","isPartOf":{"@id":"https:\/\/reactivemusic.net\/#website"},"datePublished":"2021-02-04T06:32:57+00:00","dateModified":"2024-12-15T05:46:10+00:00","author":{"@id":"https:\/\/reactivemusic.net\/#\/schema\/person\/56224d281582df7e5518e037ca63e571"},"breadcrumb":{"@id":"https:\/\/reactivemusic.net\/?p=20071#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/reactivemusic.net\/?p=20071"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/reactivemusic.net\/?p=20071#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/reactivemusic.net\/"},{"@type":"ListItem","position":2,"name":"Gqrx SDR with Max Mac OS"}]},{"@type":"WebSite","@id":"https:\/\/reactivemusic.net\/#website","url":"https:\/\/reactivemusic.net\/","name":"reactive music","description":"","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/reactivemusic.net\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Person","@id":"https:\/\/reactivemusic.net\/#\/schema\/person\/56224d281582df7e5518e037ca63e571","name":"Tom Zicarelli","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/secure.gravatar.com\/avatar\/0da58cf21a2707dd335b204b8ed3cd9194dcbf9d9814ac5d71195a65c76c8a72?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/0da58cf21a2707dd335b204b8ed3cd9194dcbf9d9814ac5d71195a65c76c8a72?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/0da58cf21a2707dd335b204b8ed3cd9194dcbf9d9814ac5d71195a65c76c8a72?s=96&d=mm&r=g","caption":"Tom Zicarelli"},"sameAs":["http:\/\/tomzicarelli.com"],"url":"https:\/\/reactivemusic.net\/?author=2"}]}},"_links":{"self":[{"href":"https:\/\/reactivemusic.net\/index.php?rest_route=\/wp\/v2\/posts\/20071","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/reactivemusic.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/reactivemusic.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/reactivemusic.net\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/reactivemusic.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=20071"}],"version-history":[{"count":12,"href":"https:\/\/reactivemusic.net\/index.php?rest_route=\/wp\/v2\/posts\/20071\/revisions"}],"predecessor-version":[{"id":21315,"href":"https:\/\/reactivemusic.net\/index.php?rest_route=\/wp\/v2\/posts\/20071\/revisions\/21315"}],"wp:attachment":[{"href":"https:\/\/reactivemusic.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=20071"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/reactivemusic.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=20071"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/reactivemusic.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=20071"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}