Finally bottomed out the issues on this. Radios purchased from ebay were sub standard quality. Purchased some that had the proper IC and components on the board. Plugged in and worked straight away. Thank you for all your assistance.

Regards
Laurie

Gohan

Thanks very much for that pointer. You have been very helpful. All working now.

To the person that commented on the build instructions. Check your wiring. I now have it working on 2.1 library with no code changes.