I am having trouble getting my Raven 600 lightbar to receive signals through the Titan RT. I purchased a raven cable 1-115-0171-401 and have tried hooking up through the Com1 port and also the USB port using a USB to 9 pin adapter. The lightbar works fine when hooked directly to my Satloc SLX G3 receiver and the Farmorks software works correctly on the Titan RT and shows incoming GPS signal when hooked to the same receiver. I just cannot seem to get the signal to pass through the Titan and I don't know how to test the Titan RT ports. Any Suggestions?