Specification compatibility raspberry pisupport p25 dmr ysf mmdvm hotspotmaterial aluminum shellfrequency range vhf and uhffeatures 1 high precision with high precision temperature compensated crystals this product guarantees extremely low bit error rates and a frequency error and offsetting of 0 2 broad compatibility compatible with raspberry pi versions 0 3 pi 4b version requires removal of the r1 resistor 3 wide frequency range supports a broad range of frequencies including 144 148 219 225 main band 420 475 and 842 950 4 simple node controller mode this product operates in simplex node controller mode easy to understand and manage even for beginners 5 quality material encased in aluminum shell for longevity and reliable performance package includes 1x module board1x aluminum shell1x antenna2x pins1x screw pack
