Yep I get a few uV here too! I just copied Dave and Alans tests with CW min
readable here in 150Hz, versus MDS (Min discernible perhaps this should be
visible signal)  using QRSS60 here  using the WGPS30 and a paper clip - and
I make it 28dB"r"in favor -  on a noisy evening band  (or im my case
28dBm!) - very close to your figs - well done both.
Someone's done something to my ionosphere -please can I have some signals
back. Laurence KL1X
www.kl1x.com