{"id":93,"date":"2021-03-07T10:54:43","date_gmt":"2021-03-07T01:54:43","guid":{"rendered":"https:\/\/sirius10.dip.jp\/blog\/wordpress\/?p=93"},"modified":"2021-04-03T19:21:35","modified_gmt":"2021-04-03T10:21:35","slug":"post-93","status":"publish","type":"post","link":"https:\/\/sirius10.net\/blog\/wordpress\/index.php\/2021\/03\/07\/93\/","title":{"rendered":"\u30e9\u30b8\u30aa\u3092\u805e\u304f"},"content":{"rendered":"\n<p>\u3000Raspberry Pi \u3067\u30e9\u30b8\u3092\u3092\u805e\u304d\u307e\u3059\u3002<br>\u3000\u30e9\u30b8\u30aa\u3092\u805e\u304f\u3068\u8a00\u3063\u3066\u3082\u3001\u30cd\u30c3\u30c8\u30e9\u30b8\u30aa\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<br>RTL \u3068\u3044\u3046\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\u4f7f\u3063\u3066\u3001\u96fb\u6ce2\u306e\u30e9\u30b8\u30aa\u3092\u805e\u304f\u3001\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u30e9\u30b8\u30aa\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u3000\u30be\u30c3\u30af\u30b9 USB\u30ef\u30f3\u30bb\u30b0\u30c1\u30e5\u30fc\u30ca\u30fc \u30b7\u30eb\u30d0\u30fc DS-DT308SV<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/sirius10.dip.jp\/blog\/wordpress\/wp-content\/uploads\/2021\/03\/RTL-SDR-1024x752.jpg\" alt=\"\" class=\"wp-image-100\" width=\"279\" height=\"204\" srcset=\"https:\/\/sirius10.net\/blog\/wordpress\/wp-content\/uploads\/2021\/03\/RTL-SDR-1024x752.jpg 1024w, https:\/\/sirius10.net\/blog\/wordpress\/wp-content\/uploads\/2021\/03\/RTL-SDR-300x220.jpg 300w, https:\/\/sirius10.net\/blog\/wordpress\/wp-content\/uploads\/2021\/03\/RTL-SDR-768x564.jpg 768w, https:\/\/sirius10.net\/blog\/wordpress\/wp-content\/uploads\/2021\/03\/RTL-SDR.jpg 1054w\" sizes=\"auto, (max-width: 279px) 100vw, 279px\" \/><figcaption>DS-DT308SV<\/figcaption><\/figure><\/div>\n\n\n\n<p>\u3000\u3053\u308c\u3001Amazonn \u3067 800 \u5186\u304f\u3089\u3044\u3067\u8cb7\u3048\u307e\u3059\u304c\u3001SDR \u3092\u4f7f\u3046\u3068\u30e9\u30b8\u30aa\u304c\u805e\u3051\u308b\u3093\u3067\u3059\u3002\u96fb\u6ce2\u72b6\u6cc1\u304c\u826f\u3051\u308c\u3070\u4ed8\u5c5e\u306e\u30a2\u30f3\u30c6\u30ca\u3067\u3082\u805e\u3051\u307e\u3059\u304c\u3001\u3067\u304d\u308c\u3070\u3061\u3083\u3093\u3068\u3057\u305f\u30a2\u30f3\u30c6\u30ca\u3092\u3064\u306a\u3052\u305f\u307b\u3046\u304c\u3044\u3044\u3067\u3059\u3002\u307e\u3042\u3001FM \u653e\u9001\u3060\u3051\u805e\u304f\u306a\u3089\u3001\u5ba4\u5185\u30a2\u30f3\u30c6\u30ca\u3067\u3082\u805e\u3051\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<p>\u3000Raspberry Pi \u306e USB \u306b\u3064\u306a\u3052\u3001lsusb \u3067\u78ba\u8a8d\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"console\">$ lsusb<br>\n\u3000\uff1a<br>\nBus 001 Device 010: ID 0bda:2832 Realtek Semiconductor Corp. RTL2832U DVB-T<br>\n\u3000\uff1a<\/p>\n\n\n\n<p>\u3000RTL2832U \u304c\u3042\u308c\u3070\u5927\u4e08\u592b\u3067\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<p>\u30fbSDR \u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3059\u308b\u3002<\/p>\n\n\n\n<p class=\"console\">$ sudo apt-get install -y rtl-sdr<\/p>\n\n\n\n<p>\u3000\/etc\/modprobe.d\/\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u306brtl-tcp-blacklist.conf\u3068\u3044\u3046\u30d5\u30a1\u30a4\u30eb\u3092\u4e0b\u8a18\u306e\u5185\u5bb9\u3067\u4f5c\u6210\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"file pre\">blacklist dvb_usb_rtl28xxu\nblacklist rtl2830\nblacklist dvb_usb_v2\nblacklist dvb_core<\/p>\n\n\n\n<p>\u3000\u4e00\u5ea6\u3001\u518d\u8d77\u52d5\u3057\u307e\u3059\u3002<br>\u8d77\u52d5\u3057\u305f\u3089 rtl_test \u3067\u30c6\u30b9\u30c8\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"console\">$ rtl_test<br>Found 1 device(s):<br>  0:  Generic, RTL2832U, SN: 77771111153705700<br><br>Using device 0: Generic RTL2832U<br>Found Fitipower FC0013 tuner<br>Supported gain values (23): -9.9 -7.3 -6.5 -6.3 -6.0 -5.8 -5.4 5.8 6.1 6.3 6.5 6.7 6.8 7.0 7.1 17.9 18.1 18.2 18.4 18.6 18.8 19.1 19.7 <br>Sampling at 2048000 S\/s.<br><br>Info: This tool will continuously read from the device, and report if samples get lost. If you observe no further output, everything is fine.<br><br>Reading samples in async mode&#8230;<br>Allocating 15 zero-copy buffers<br>lost at least 24 bytes<br>^CSignal caught, exiting!<br><br>User cancel, exiting&#8230;<br>Samples per million lost (minimum): 0<\/p>\n\n\n\n<p>\u3000ctrl+c \u3067\u30d6\u30ec\u30fc\u30af\u3057\u307e\u3059\u3002\u30c7\u30d0\u30a4\u30b9\u304c\u8a8d\u8b58\u3067\u304d\u3066\u3044\u308c\u3070\u5927\u4e08\u592b\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u3000\u518d\u751f\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u3057\u307e\u3059\u300282.5M \u306f\u9078\u5c40\u3059\u308b\u5468\u6ce2\u6570\u3067\u3059\u3002\uff08\uff11\u884c\u3067\u5165\u529b\u3057\u307e\u3059\u3002\uff09<\/p>\n\n\n\n<p class=\"console\">$ rtl_fm -f 82.5M -M fm -s 200000 -r 48000 &#8211; | aplay -r 48000 -f S16_LE<\/p>\n\n\n\n<p>\u3084\u3063\u3066\u307f\u305f\u3089\u30ef\u30a4\u30c9FM \u307e\u3067\u53d7\u4fe1\u3067\u304d\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<p>(2021.03.08 \u8ffd\u8a18)<\/p>\n\n\n\n<p>\u30b3\u30de\u30f3\u30c9\u30e9\u30a4\u30f3\u304b\u3089\u5165\u529b\u3059\u308b\u306e\u306f\u9762\u5012\u306a\u306e\u3067\u3001tcl\/tk \u3067\u30d5\u30ed\u30f3\u30c8\u30a8\u30f3\u30c9\u3092\u4f5c\u308a\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<p><a href=\"\/RaspberryPi\/FM_Radio.html\">\u3053\u3061\u3089\u304b\u3089<\/a>\u3069\u3046\u305e\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u3000Raspberry Pi \u3067\u30e9\u30b8\u3092\u3092\u805e\u304d\u307e\u3059\u3002\u3000\u30e9\u30b8\u30aa\u3092\u805e\u304f\u3068\u8a00\u3063\u3066\u3082\u3001\u30cd\u30c3\u30c8\u30e9\u30b8\u30aa\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002RTL \u3068\u3044\u3046\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\u4f7f\u3063\u3066\u3001\u96fb\u6ce2\u306e\u30e9\u30b8\u30aa\u3092\u805e\u304f\u3001\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u30e9\u30b8\u30aa\u3067\u3059\u3002 \u3000\u30be\u30c3\u30af\u30b9 USB\u30ef\u30f3\u30bb\u30b0\u30c1\u30e5\u30fc\u30ca\u30fc  [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[],"class_list":["post-93","post","type-post","status-publish","format-standard","hentry","category-raspberry-pi"],"_links":{"self":[{"href":"https:\/\/sirius10.net\/blog\/wordpress\/index.php\/wp-json\/wp\/v2\/posts\/93","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sirius10.net\/blog\/wordpress\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sirius10.net\/blog\/wordpress\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sirius10.net\/blog\/wordpress\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/sirius10.net\/blog\/wordpress\/index.php\/wp-json\/wp\/v2\/comments?post=93"}],"version-history":[{"count":8,"href":"https:\/\/sirius10.net\/blog\/wordpress\/index.php\/wp-json\/wp\/v2\/posts\/93\/revisions"}],"predecessor-version":[{"id":886,"href":"https:\/\/sirius10.net\/blog\/wordpress\/index.php\/wp-json\/wp\/v2\/posts\/93\/revisions\/886"}],"wp:attachment":[{"href":"https:\/\/sirius10.net\/blog\/wordpress\/index.php\/wp-json\/wp\/v2\/media?parent=93"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sirius10.net\/blog\/wordpress\/index.php\/wp-json\/wp\/v2\/categories?post=93"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sirius10.net\/blog\/wordpress\/index.php\/wp-json\/wp\/v2\/tags?post=93"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}