Nice work, one thing I did way back was post some spec an screen shots in a pic album here...I have a round from inside the basement, and another round with the antenna placed on the roof as normal. That was from Buffalo and lookin at just one crude antenna I built. I see ur in Binghamton area??? Fair to say Pretty rough terrain down there? More so than the Buffalo area...
I was noting the pilot peak, as at the time I was under the impression the pilot is used for initial sync, etc. But it probably makes more sense to use that "flat portion" as you say, since that'll average things out.
Was the 50 ohm spectrum analyzer matched to the 75 ohm system at all? Was there a Receiver in line at the time also?
Would be interesting to see if ya can build a directional coupler similar to mine, so when ur monitoring with a Spec An
the 50 Ohm Spec An isn't loading down as much. I can use this inline with a receiver, while monitoring with the spec an as well.
This seems to work OK for me here, just tested this 75 ohm directional coupler over the weekend.
Not that my Spec An is very accurate or anything. One of these days I'll bring a newer one home for a weekend.
Splitters, Attenuators, Filters, Diplexers, Other Signal Gear
Edit: BTW, I was looking at the Mini-Circuits site the other day, looking for some data on the one I have, and seems it's either a "special",
or since been discontinued. But, they still have plenty of designs of various sizes that could easily be put together inside a similar
Pomona or Bud type project Box. Prices I saw were anywhere from 5 or six bux apiece to twenty sumthin bux apiece.
Within hobbyist range. Digi-Key didn't seem to have Mini-Circuits parts, but they do have various similar sized Directional
Couplers from other mfrs within similar price range.
Another use for such a D.C. may be to use as a return loss bridge, along with a Spec An with Tracking Generator,
i.e - in a poor man's Antenna Sweep Test setup...