[Elecraft] low IF output

[Gary Hunt]

I have two issues that may be related. I'm wondering if I'm missing the obvious.
 
IF output from K3 to panadapter (Softrock Ensemble) seems way low as compared to a seperate antenna feeding the softrock. It's probably at least 10db down. This is K3 # 7956 so it's very late serial number. Just completed assembly a couple weeks ago.
 
The second issue is, if I have the receive antenna set to ATU in the menu and hit the receive ant button the signal drops at least 10db. Shouldn't it be the same as not hitting the button in that configuration? 
 
I gotta feelin' I'm over thinkin this one to the point of just missin it.
 
Thanks in advance,
 
73,
Gary
KC9EE