{"id":396,"date":"2024-04-26T20:59:49","date_gmt":"2024-04-26T12:59:49","guid":{"rendered":"https:\/\/ra0sms.shop\/?page_id=396"},"modified":"2025-07-07T11:40:25","modified_gmt":"2025-07-07T03:40:25","slug":"rf-sampling-automatic-band-decoder-1-30-mhz","status":"publish","type":"page","link":"https:\/\/shop.ra0sms.com\/index.php\/catalog\/band-decoders\/rf-sampling-automatic-band-decoder-1-30-mhz\/","title":{"rendered":"RF sampling Automatic Band Decoder 1-30 MHz"},"content":{"rendered":"

\"\"<\/a> \"\"<\/a><\/p>\n

This board provides automatic band switching capabilities for LPF and antenna switches for any radio rig. The main principle is to count the RF frequency during tuning and use the STM32G030 CPU as a frequency counter and a switch.<\/p>\n

More information<\/a><\/p>\n

    \n
  1. Wait for PTT (GND active) to be activated<\/li>\n
  2. Once PTT activated, wait for RF to appear<\/li>\n
  3. Measure incoming RF<\/li>\n
  4. Set the output according to measured frequency<\/li>\n
  5. LPF relay activation 10ms time delay<\/li>\n
  6. Set output PTT (GND active)<\/li>\n
  7. Wait for PTT to be released<\/li>\n
  8. Go back to waiting for PTT<\/li>\n<\/ol>\n

    Outputs:
    \nB1 \u2014 160
    \nB2 \u2014 80
    \nB3 \u2014 40
    \nB4 \u2014 30
    \nB5 \u2014 20
    \nB6 \u2014 17
    \nB7 \u2014 15
    \nB8 \u2014 12\/11\/10<\/p>\n

    Power supply: 6.5-15V, 10mA
    \nInput RF impedance: >1 kOhm
    \nMaximum input frequency: 32MHz
    \nMaximum RF input: 50W
    \nMeasurement time: ~4ms
    \nNumber of 50V\/100mA outputs: 8
    \nBoard sizes 60\u00d750 mm<\/p>\n

    Weight:<\/strong> 50g<\/strong>
    \nCost:<\/strong> 33USD<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"

    This board provides automatic band switching capabilities for LPF and antenna switches for any radio rig. The main principle is to count the RF frequency during tuning and use the STM32G030 CPU as a frequency counter and a switch. More … Continue reading →<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":33,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-396","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/shop.ra0sms.com\/index.php\/wp-json\/wp\/v2\/pages\/396","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/shop.ra0sms.com\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/shop.ra0sms.com\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/shop.ra0sms.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/shop.ra0sms.com\/index.php\/wp-json\/wp\/v2\/comments?post=396"}],"version-history":[{"count":2,"href":"https:\/\/shop.ra0sms.com\/index.php\/wp-json\/wp\/v2\/pages\/396\/revisions"}],"predecessor-version":[{"id":566,"href":"https:\/\/shop.ra0sms.com\/index.php\/wp-json\/wp\/v2\/pages\/396\/revisions\/566"}],"up":[{"embeddable":true,"href":"https:\/\/shop.ra0sms.com\/index.php\/wp-json\/wp\/v2\/pages\/33"}],"wp:attachment":[{"href":"https:\/\/shop.ra0sms.com\/index.php\/wp-json\/wp\/v2\/media?parent=396"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}