Greetings again from sunny South Africa:-)
For interest, fun and learning (note this posting is NOT looking at precise measurements, am just trying to learn more about aerials and keep my grey cells active!) I have just tried comparing a scan of my wide band (4Mhz - 30Mhz) HF aerial ( a commercial traveling wave dipole mounted as inverted V with center support at about 6 Meters) using the nanovna (calibrated 1 - 30 Mhz) and a You Kits FG 01.
Am posting here in case of general interest to someone else.
Playing with the marker on the nanovna and noticing the change in various values (e.g. using smith chart, resistance and reactance) with respect to frequency is educational, even if the numbers are not 'laboratory' grade.
In the attached pictures the nanovna marker is at 10.2 Mhz (I have a QRP-Labs QCX waiting to be built for the 30M band) and have set the center frequency of the You Kits analyser to the same value (10.2Mhz). Unfortunately the FG 01 span jumps from 20 Mhz (as used) to 50 Mhz so thought best to show restricted range with a little more resolution.
As an aside I have yet to discover if possible to label the nanovna plots or be able to select a specific frequency for the marker. I am guessing that using companion software e.g. nanovna-save, adding such legends / setting specific frequencies will be trivial (something else to learn <smile>)?
Overall I am VERY impressed with the nanovna, especially as less than a quarter of the FG 01 price when originally purchased (few years ago). Note: The FG 01 does not provide any indication of individual reactive and real values, just the impedance.
Attachments are screen shots of both analysers plus partial view of the aerial. Nanovna screen was more difficult to focus / capture - apologies for not being 100% clear. The aerial wires (2 x triangle formations leading away from mast) are not easy to spot but they are there!
Sincerely trust I have not taken up bandwidth and just added 'noise' to the group.
Enjoy the weekend ahead and as always remember to KEEP SMILING!
73
Nigel ZS6RN ex G8DEV
