because currently the bmp saved using different (new?) bmp format that my older photo viewers SW dont recognize.

1) use standard older definition of bmp 24/32bits file when screenshot save to sd card. what i request in next FW upgrade by dislord. 6) nice box to put the unit, cables, cal kit, manual etc in one safe place. 5) slimmer in thickness dimension of casing, and properly manufactured casing, unlike lego connection style of NanoV2.2 case. what i got in LiteVNA (64 )that is not in NanoV2.2: 1) extra BW up to 6.3GHz 2) larger 4' LCD 3) can save screenshot and s*p file to sd card 4) faster sweep time for 1001 points. and Lite's price is only about 1.5X the price of HCXQS Nano. so to conclude in general, i'm happy with LiteVNA and its easily superseded my NanoVNA V2.2 already. and the male Cal Kit provided with the unit is extraordinarily good with only about 0.7ps offset delay estimated with my tool, when i calibrated the LiteVNA with Kirkby Cal Kit using s-parm characterized profile in NanoVNA-QT (modded by Hugen to enable 6.3GHz limit), the 50ohm Load is also dead center on Smith chart. maybe because NanoV2.2 is operated from Samsung wallwart charger? (if so then its not a fair comparison with battery operated LiteVNA) S11 return loss of 50ohm Load is also better on LiteVNA. S21's noise floor of LiteVNA is i think much better 4GHz (-60dB) and maintained up to max BW 6.3GHz (worst is -50dB) where NanoV2.2 is touching -40dB 4.4GHz. 1001 points sweep on LiteVNA feels about the same 201 points sweep of Nano V2.2. performance wise, i think its comparable or better than Nano V2.2 and sweeps much faster. i did a quick test and tear down on LiteVNA, and comparison with my HCXQS NanoVNA V2.2 in short LiteVNA's PCB is very different from Nano V2.2 i guess totally developed and placement by Hugen, topology maybe the same with Nano, i've not look closely, hinted by OwO with few components changes to deal with extra BW. Just a very short review and request to Dislord (FW developer).

Nanovna v2