he SWR was always shown completely flat at the bottom of the screen and the
readout for that trace was in fact showing 1:1 as well along the whole trace.
1) be sure that the TRACE selected for SWR is using CHANNEL CH0
2) in SCALE, select whatever REFERENCE POSITION that you like
eg 1 x1
3) select an appropriate SCALE->SCALE/DIV
e.g. .2 x1 for 100 Ohm termination if calibrated for 50 Ohms
Oristo