โ†‘868 MHz LoRa ์•ˆํ…Œ๋‚˜ WiFi 915 MHz ์žฅ๊ฑฐ๋ฆฌ ์•ˆํ…Œ๋‚˜ 923 MHz RP SMA ๋‚จ์„ฑ ํ—ฌ๋ฅจ ๊ด‘๋ถ€ ์•ˆํ…Œ๋‚˜ ์‹ค๋‚ด ๋‚ฎ์€ SWR - TopDealBox