Have you tried a manual tune using the instructions at http://hummy.tv/forum/threads/hdr-fox-t2-tuning-advice.472/page-2#post-5824 ? Is this a new box or has the problem just started? What transmitter do you receive from? What is your post code? What is the signal strength and quality (as reported by the Humax) on an HD channel and on an SD channel?i have excellent reception on all hd channels.
but I have poor reception on sd channels.Any advice would be appreciated