{"product_id":"si5351-wspr-transmitter-with-tcxo-and-gps-for-stable-frequency-sync-auto-qth-locator-23dbm-output","title":"WSPR Transmitter with SI5351 IC and GPS Module - 5V Power Supply","description":"\u003cp\u003eA small hardware device for transmitting WSPR messages based on the SI5351 IC. It is designed for users needing GPS-synchronized operation with a 5V power supply.\u003c\/p\u003e\u003cul\u003e\u003cli\u003e5V voltage\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003eFeatures a built-in TCXO to eliminate SI5351 frequency drift, a built-in GPS module for operation with active GPS antennas, transmission time synchronization, and automatic QTH locator calculation. The device includes a buffer amplifier based on a 74ACT244 IC. For optimal performance, the GPS antenna should be placed outdoors where it can receive a signal. It is not recommended to use it indoors, as it will restart if it cannot receive a GPS signal. Note that the machine does not have a built-in LPF, and players need to use their own LPF if they want to reduce harmonic interference. Do not use fast chargers or chargers with fast charging protocols, as this may damage the chip. A standard 5V power supply is sufficient.\u003c\/p\u003e\u003cp\u003eWhat's included: 1 x Unit, 1 x GPS antenna, 1 x Type-c cable.\u003c\/p\u003e","brand":"LinkMejor","offers":[{"title":"Black","offer_id":49120944750817,"sku":"BG-2043151-BLACK","price":42.99,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0853\/9317\/8849\/files\/025196d1-fc24-49b4-a07d-e88f192388a4.jpg?v=1789397036","url":"https:\/\/ontproduct.com\/products\/si5351-wspr-transmitter-with-tcxo-and-gps-for-stable-frequency-sync-auto-qth-locator-23dbm-output","provider":"IvySource","version":"1.0","type":"link"}