quadrifiliar helix antenna for 137mhz color palette

1782280
add to favorites

#726957 #583323 #948971 #A19987 #956D57

related tags: 137mhz 4B3830 6B675E 8B867A 956D57 9A968D A19987 antenna apt band brasil brazil defined helix meter noaa qfh quadrifiliar radio realtek rtlsdr satellite sdr software weather 2 583323 726957 857166 948971