BG7XSS BH6RIZAlternatively, you can modify the circuit diagram to make the interface more suitable for connecting with a handheld device and GPS.
BI4IKE BH6RIZ I apologize, I haven't been logging in very frequently lately, and I just saw this. I used the free printing service from JiaLiChuang, and you can go to JiaLiChuang to get a free coupon and print it out.