Thanks @jherbert and @9a4db. See my most recent reply to Zach (from LimeMicro) at https://discourse.myriadrf.org/t/my-lime-seems-completely-deaf/856/64.
In summary, with my Lime, there is NO combination of gain settings and/or antennas and/or RX1_L, _H, _W ports that allows the Lime to receive an acceptable signal, which my other receivers are easily receiving.
Basically, as it is right now, this $300 brick is getting it's ass kicked by even my cheap $25 RLT-SDR dongle.
PS: if you want reply or add anything, could you please do it in that thread?? We now know the problem is not related to SDR-Console. I'm having same problems using LimeSuite and GQRX. I'm trying to keep this thread 'on topic'. Thanks