Nws yog nyob rau hauv cov ntsiab lus no uas tus Navigator BX 1.5 tau tso tawm, uas peb yuav hu los ntawm nws lub npe menyuam yaus "Navigator" txhawm rau txuag cov yuam sij keyboard. Ib tug me nyuam zoo nkauj ntsuas 25mm nyob rau hauv txoj kab uas hla, hnav tag nrho cov dub, thiab uas zoo li ib tug tag nrho thiab complex RTA. (Saib tag nrho kev tshuaj xyuas….)