I have solved the problem and the solution may be of use to anyone else with L&M cables.
The cables are manufactured by Subconn and are available in the USA through MJ Stewart. You can contact them via email at:
Jennifer Stewart [jen@mjstew.com]
or phone 781 829 4044
Out of USA, go to the Subconn website and locate your nearest distributor.
MJS was super to work with and did not have a minimum order. I ordered two and they will have them to me before leaving for 6 weeks in the western Pacific.
The cost for two was about 60% of the Backscatter listed price for one; and they no longer carry the item.
nl