{"product_id":"fennec-public-handheld-am-fm-sw-receiver-on-esp32-s3-and-si4732-sstv-morse-rssi-homing-and-a-web-remote","title":"Fennec Public Handheld AM \/ FM \/ SW receiver on ESP32-S3 and SI4732. SSTV, Morse, RSSI homing, and a web remote.","description":"\u003cp dir=\"auto\"\u003eFennec is a handheld \u003cstrong\u003eshortwave listening station\u003c\/strong\u003e on the \u003cstrong\u003eESP32-S3\u003c\/strong\u003e and the \u003cstrong\u003eSI4732-A10\u003c\/strong\u003e. Receive only. No transmitter, no CAT, no station-memory list.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eTune AM, FM, and HF from a 2.8\" touchscreen. Decode SSTV and Morse. Sweep an antenna into a peak. Log when a carrier comes up. Drive the same radio from a phone over Wi-Fi (SSID \u003ccode\u003eFennec\u003c\/code\u003e, \u003ccode\u003ehttp:\/\/192.168.4.1\/\u003c\/code\u003e).\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eSame family of hardware as \u003ca href=\"https:\/\/github.com\/cifertech\/ESP32-DIV\"\u003eESP32-DIV\u003c\/a\u003e. Different job. This one \u003cem\u003elistens\u003c\/em\u003e.\u003c\/p\u003e\n\u003cdiv class=\"markdown-alert markdown-alert-note\" dir=\"auto\"\u003e\n\u003cp class=\"markdown-alert-title\" dir=\"auto\"\u003e\u003csvg class=\"octicon octicon-info mr-2\" viewbox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\"\u003e\u003cpath d=\"M0 8a8 8 0 1 1 16 0A8 8 0 0 1 0 8Zm8-6.5a6.5 6.5 0 1 0 0 13 6.5 6.5 0 0 0 0-13ZM6.5 7.75A.75.75 0 0 1 7.25 7h1a.75.75 0 0 1 .75.75v2.75h.25a.75.75 0 0 1 0 1.5h-2a.75.75 0 0 1 0-1.5h.25v-2h-.25a.75.75 0 0 1-.75-.75ZM8 6a1 1 0 1 1 0-2 1 1 0 0 1 0 2Z\"\u003e\u003c\/path\u003e\u003c\/svg\u003eNote\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eAnalog coverage is \u003cstrong\u003eFM 64-108 MHz\u003c\/strong\u003e and \u003cstrong\u003eAM\/SW 153 kHz-27.90 MHz\u003c\/strong\u003e. Airband, NOAA, VHF\/UHF, and 10 m ham (28 MHz+) are out of range. That's the chip, not a firmware bug.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv dir=\"auto\"\u003e \n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eRadio\u003c\/strong\u003e - FM \/ AM \/ SW through one SI4732, seek, RDS, last frequency in flash\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSSTV\u003c\/strong\u003e - Martin, Scottie, Robot 36 from the radio tap or the I2S mic\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMorse\u003c\/strong\u003e - Goertzel copy, pitch, USB\/LSB, BFO\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHoming\u003c\/strong\u003e - RSSI plot, not a compass. You walk the antenna\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWatch\u003c\/strong\u003e - ARM a channel, log when the carrier holds (32 events)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeb\u003c\/strong\u003e - phone and LCD stay in sync\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"auto\"\u003eStay on \u003cstrong\u003eArduino-ESP32 2.0.10\u003c\/strong\u003e. Core 3.x breaks the NeoPixel RMT code. Full flash guide is in the \u003ca href=\"https:\/\/cifertech.github.io\/Fennec\/#flash\" rel=\"nofollow\"\u003eWiki\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"MAKING Lab LLC","offers":[{"title":"Black","offer_id":45597371531440,"sku":null,"price":60.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0701\/1994\/8464\/files\/20260920174256_749_9.png?v=1789897598","url":"https:\/\/ma-king-lab.myshopify.com\/products\/fennec-public-handheld-am-fm-sw-receiver-on-esp32-s3-and-si4732-sstv-morse-rssi-homing-and-a-web-remote","provider":"MAKING Lab LLC","version":"1.0","type":"link"}