I can make the PC-ALE key the transceiver with the CAT settings but not with Signalink. Therefore, no sound is transmitted, just the carrier. Any ideas?
You will have to use the information found through Google Search in order to find the answer. The first website you see (QRZ) offers details on how to work with these devices and the software.
Google Search results: https://goo.gl/NKnMWP