TS-440 Serial Interface Chip Set

If you want to add serial interface capability to your TS-440 you will need to install 2 chips inside the radio as outlined in the TS-440 users manual. The 2 chips that you will need to add are included with this product. In addition you will need a TTL to RS-232 or TTL to USB level concerter. Please see our IF232RS232 or IF232USB level converters for this function.