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This is a bit off topic but may be of some interest to the guru's and nerds.
I refered to doing an aerial measurement using manual mathmatical calculations. The actual project was quite involved at the time. I was working with two engineers who had a project to find out why some of our HF aerials gave peculiar results when attached to automatic aerial tuners.
The engineers did some research through IEEE papers and manuals and discovered that very little had been published in this area since the early 1920's. We set about to confirm previous work and hopefully come up with some new data. The total project took about 3 months and the aerial work I did took about a month. (1969)
At this time all the measurements had to be done manually followed by lots of math calculations. About 12 months later HP showed us a machine that could be hooked to the aerial and produce a Smith Chart in seconds. A job that took me near a month. Ah such is progress!
Barry
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