Radio links are an essential component of the radio communication system to be able to interconnect different command posts within a limited geographic area. Purchase of a new radio link has been postponed to the future and the current radio link RL371 will be used for some years to come. A strategic decision has been made that the IP protocol will be used as the carrier of information in the communication system. To be able to send IP traffic over the radio link, a router is connected to the RL371. The bit error probability of the RL371 is however too high to carry IP traffic, therefore an error correction unit will be used to reduce the bit error probability over the radio link. The bit error probability can be reduced with for example Reed-Solomon (RS) channel codes, so that the IP protocol can be used over the radio link. The recommended parameter choice RS(233,223) is based on bit error measurements at the RL371 and a theoretical analysis.