Backscatter compendium

The microwave bands are an area of amateur radio that I have never got seriously interested in, although we can only do so much I guess. Quite a few people are doing ATV at 5.6GHz using low cost modules.

Years ago I bought the "Backscatter compendium". This is now available free to download. 

See https://www.microwavers.org/backscatter.htm .

Bad back - NOT amateur radio

This occasionally happens, but things usually get back to normal in a few days. For the last day I have been in agony at times when moving as I must have strained a back muscle.  Taking Paracetamol seemed to do nothing, but 1 ibuprofen seems to have done the trick. I shall take more later. I have no idea how this happened.

Back pain - NOT amateur radio

Well, I have enough to contend with as a result of the after-effects of my stroke, but now I have a re-occurrence of lower back pain. Usually this goes within a few weeks. I am taking pain killers and I am OK if I am flat on my back. Walking is painful. My wife has given me a hot-water bottle for my back.