Thankyou.
I have played with my HP141 boat anchors using the highest frequency plug-in in the past and adjusted the centre freqency knob to see if signals go up or down in the display (to determine if it is a genuine signal or spurious spike due to harmonics etc). This is easier to do with a knob on the old gear rather than changing frequency via the menu (sorry if I am telling readers how to suck eggs).
i am sure your possible robust design specifically for the high frequencies (dropping 0-300mhz) would make a complementary unit to the current one . It would mean a ?pair of devices between them covering 0-3gkz) with satisfactory performance for around ?100 ($120) - a bargain. Although there are various handheld devices around now ( I have an old Deepace KC901s at ?1300), they are much more expensive, bigger, and/or do not have as good a performance ( eg rbw of 2.8khz).
I understand the worries concerning ?possible complaints of unexpected performance, but most buying this kit will have some appropriate insight and knowledge and should understand about limitations of the kit. I am sure I am not the only one to use a spectrum analyser to measure leakage from the microwave but most users have far more sophisticated tasks for these devices. I would have thought that the nanovna would be far more challenging than a spectrum analyser to use for those without a professional background but they seem to sell like wildfire ( as does the present Tinysa).
