FWIW:
Earlier this year I had been monitoring 2200m and 630m as well as
TX'ing some on 630 WSPR/FST4W. Health issues caused me to shut down the
TX activity because I could not be "in attendance". Normally the RX
systems run along all by them selves but Microsoft buggered that. When I
got well enough, I fixed the RX stuff and resumed posting reports to
WSPRnet and PSKreporter for 2200 and 630 but did not have enough free
time to trouble shoot some TX problems.
Finally got time to look into it
this week and after fixing Microsoft problems, test equipment problems,
killing the bugs in the tuner boxes (and draining the water), I am
TX'ing again. For the time being it will only be 630m WSPR. During
the extended troubleshooting experience, I had to ditch the little amp I
had been using and replace it with one of my bigger amps, so a little
more power now.
The
antenna is still a piece of wire hanging off the side of my big tower
in the form of an inverted L (more or less). There is no ground system.
The tuner ground return is tied into the tower lightning protection
system which is lots of copper buried under the 6 foot deep cement tower
base. Feed point resistance is of course high with the expected losses.
A rough estimate of the EIRP with the bigger amp in play is 3-4 watts.
(subject of course to the usual +/- 20 dB uncertainty factor).