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Vector Network Analyzer Vector – phase and amplitude, complex impedance, resistance, capacitance,inductanceNetwork – one or two port circuit systemsAnalyzer – comprehensive measurement and test suites I sold these for 10,000- 50,000 in the 80's 4/20/20W0TLM mtg - NanoVNA1
NanoVNA The open source NanoVNA project by @edy555 and ttrftech has been around since2016, but only recently have Chinese sellers begun mass producing the unitBought one for 28 from Walmart.com!Reviewed favorably same month in both QST and QEX!Tremendous community support and great software – Windows, Mac, AndroidTop of my list of recommended ham test equipment, replace most antenna analyzersSurprisingly excellent manual4/20/20W0TLM mtg - NanoVNA2
New “f” version4.3 inch displayNice and much easier touch control,but NanoVNA Saver program gives whatever size displayyou want and infinitely more control – One of the bestsoftwares I have encountered4/20/20W0TLM mtg - NanoVNA3
Walkaround USB-CMultifunction switch – Press, roll right or leftTouch screen – can work with my big fingers, but recommend stylus101 sample points – limits narrowband analysis, BUT, softwaresupports multiple 101 point “segments!2 SMA femaleportsSnm - powerfrom port m toport nS11 - power fromport 1 (CH0) toport 1 – reflectedpowerS21 – powerfrom port 1 toport 2 (CH1)4/20/20W0TLM mtg - NanoVNA4
ScreenBusy, but very readable and informative1 - Start frequency2 - Stop frequency3 - Markers - very powerful - number at same frequency on all traces4 - Calibration status5 - Reference position6 - Marker status, active,previous active7 - Trace status –CH (0, 1)selectedinverse,Format,Scale,Current value8 – Battery status4/20/20W0TLM mtg - NanoVNA5
Quick look at user interface –better than expected Touch open area or push control topopup menu Touch menu item or roll control toselect Touch number pad4/20/20W0TLM mtg - NanoVNA6
NanoVNA Block DiagramCH0CH14/20/20W0TLM mtg - NanoVNA7
Calibration – a little tedious, but importantI have made my ownFemale calibratorsShort50ohm OpenCalibrate to end of cable4/20/20W0TLM mtg - NanoVNA8
Smith Chart – “Don’t Panic”4/20/20W0TLM mtg - NanoVNA9
“Daytime” operating station4/20/20W0TLM mtg - NanoVNA10
HF 30ft whip on 65ft tower“storm” level – 25ft100ft LMR-4004/20/20V/UHF“Layover” pole mount50ft LMR-400W0TLM mtg - NanoVNA11
20m – 30ft whip on tower4/20/20W0TLM mtg - NanoVNA12
20m 30ft Whip4/20/20W0TLM mtg - NanoVNA13
30ft Whip – 1 to 30 MHz4/20/20W0TLM mtg - NanoVNA14
Dual band base station 100-500MHz4/20/20W0TLM mtg - NanoVNA15
Dual band base station 2m4/20/20W0TLM mtg - NanoVNA16
Dual band base station 2m4/20/20W0TLM mtg - NanoVNA17
“Nighttime” Station – electronics bench4/20/20W0TLM mtg - NanoVNA18
“Nighttime” Station 80m Off Center Fed dipole & Quadband4/20/20W0TLM mtg - NanoVNA19
Quadband Antenna – 2m band4/20/20W0TLM mtg - NanoVNA20
Quad band 2m band4/20/20W0TLM mtg - NanoVNA21
Off center fed dipole – 40m band4/20/20W0TLM mtg - NanoVNA22
HF 80m Off Center Fed Dipole, 1 TO 30MHzNote: One objection to nanoVNA is fixed 100 samples – with softwaresegments can multiply this by any number – here 10 segments, 1000 pts4/20/20W0TLM mtg - NanoVNA23
2 port – Cable testing4/20/20W0TLM mtg - NanoVNA24
2 port – Cable testing4/20/20W0TLM mtg - NanoVNA25
Cable Testing – 1 port (open far end), TDR4/20/20W0TLM mtg - NanoVNA26
NanoVNA takeaways Amazing instrument! Especially with the “NanoVNA Saver” program.NanoVNA and a multimeter meets 95% of ham testing needs. I have at least ahalf dozen antenna analyzers and SWR meters – this replaces them all.Eminently justifiable if just used as SWR and cable tester, but so much more.When buying, check the reviews! – many different makers, some very good,some not so much. Pay a little more and get full case, calibrators, cables –much cheaper with unit than bought separately.Adapters – you will need a few to many – SMA male to SO239, PL259 (“UHF”male and female), SMA male to BNC, cables, etc, etc.User interface is quite useable, but takes some getting used to – get a stylus!4/20/20W0TLM mtg - NanoVNA27
Vector Network Analyzer Vector -phase and amplitude, complex impedance, resistance, capacitance, inductance Network -one or two port circuit systems Analyzer -comprehensive measurement and test suites I sold these for 10,000- 50,000 in the 80's 4/20/20 W0TLM mtg - NanoVNA 1
