PA0O ham radio

  I wanted to receive 2m with the good band panorama of my Flex6500 This offers  a different experience seeing what happens on the band without tuning like a mad man.. Also at HF using split the pan adapter is very useful. Until now used IC7100 that performs very well at 6 4 2 and 70cm but it lacks the panorama view. I tried RTL dongle and SDR-Console  but connecting the RTL dongle behind the preamp without affecting the 144 reception was not as easy as I thought. I got extra noise when connecting the 2nd receiver.  Also tried N1MM with pan driver but I could not see the signals  I heard it should be the other way around ? possible I did something wrong. Tried an old DEM 144 but that is a huge box with Xtal oven and relay T/R switching. 12V 0.4A and start 1.5A to heat up I still own 2 so called Ukrainian transverters , very small footprint 40x80x20mm nice build low priced.  low standby power 30mA/12V (real) 10W from a RD15HVF1 high efficiency 12V(real) 1.5A . but spurious in band.  Whe