2×40或者2×20的lcd吧,差别是显示内容有小差异。
a. for 2x40 lcd: letter a or p indicating average or peak mode (depending on switch
position), probe id, forward power, reverse power, real power (forward minus
reverse), calculated swr.
b. for 2x20 lcd: letter a or p indicating average or peak mode (depending on switch
position), probe id, real power (forward minus reverse), calculated swr.
详见
http://ok1dx.dyndns.org/constructions/swrmega/swrmega.html感觉楼主做的比ok1dx做工好点!