Hi there,
Thank you for the kind replies, containing some references which I can revisit with better scrutiny. I have had a couple successes with these nRF modules, one being a baby monitor incorporating PIR motion sensing that triggered an LED at my bedside. This project is a step up.
Attached is a photo of the equipment I have constructed, test pieces destined for upgrade of motive components should this prove useful. In bottom right of photo is finished material composed of the bark of a hibiscus that grows locally. So far, rate of production is about 2x that of the method I learned from my father. In practice, the rate of rotation of the two end pieces vary inversely according to where my closing jig is located, as it progresses the length of the cable, such that rateRX>rateHead at start, rateRX=rateHead in middle, rateRX<rateHead at finish. By remotely varying the rate of rotation via these nRFs while work is in progress, I am saved the occasional scramble to adjust the rate of the non-nRF'd piece. I am looking to eventually produce 200 foot lengths.
On a historical note, a more prized fiber obtained from another endemic was used in the construction of expensive alpining ropes exported to Europe, up until the advent of Aramid fibers in the 1930's. During its heyday, whaling ships would have their running rigging swapped out for our locally produced cables.
Thanks again for the leads. I should be receiving a couple extra radio modules in a day or two, and will get to work on the coding. Thanks for the reference to addressing of modules, which I probably came across, but was looking for an application example for more insight, given my lack of knowledge in these matters.
Mark
(I hope the image links work)