This is excellent!! I have watched this video several times. Thank you!

Thanks for the great overview. 73.

DUDE! You don’t have a BalUn, UnUn OR a common-mode current choke there. You’ve got a simple toroid core inductor! I don’t know what the HECK you’re trying to demonstrate.

Nice! Even though this is 14 years old, I just recently purchased an FT-897DM - and use it with an OCFD (Palomar engineering). All the best, KQ4IXD

Barry, another question; The Attenuator On CH1, does that ADD to the negative dB reading you are seeing? Exp.; The -72 dB? Would that really be -62dB ? Also, I know that 150 MHz is close to 2M, but why not stop / use 148 MHz ?

Barry, what is the purpose of the attenuator connected to CH1?

Your teachings are priceless. Thank you kindly for sharing your knowledge. 73.. KO6DEV. I just got my general license. I created and tested it. It worked awesome.

Hello, I don't understand why you need a 10 db attenuator? and Why 10 and not more or less? 73' F4JPC Nicolas

Picked up one today. This is by far the best set of videos explaining the features on the kx2. Thank you so much for making this learning task a dream.

Thank you so much for sharing your knowledge. KO6DEV. 73

I've had a 590SG for several years. What a nice radio, but I got tired of working split during DXpeditions and repeatedly pressing the A/B button to find the DX listening frequency. Often times I would transmit of the DX calling freq. :( Saw this video a few months ago and have kept my eye out for a nice 480. Bought one last week on ebay and received it today. It's all hooked up[ and playing good! Really neat to have a sub-receiver. I've piped the audio from both radios into a mixer, so I can combine or separate the feeds. Radio A in the left ear and Radio B in the right, or both combined. Beats the heck outta the A/B button, or buying and learning a new rig. Thanks for the video!

Excellant, thank you!

Thank you so much for the sharing of knowledge....73 from Indonesia JZ04LED

Thx Barry for the no bull laymen approach. Without any back ground music informative novice hams take and the extra class ham take notice or learn the hard way

Does anyone know why the 10 db attenuator is necessary?

Dont look now but there's a guy stuck inside the nanovna !

I found the 43 and 31 are very similar although I wind mine differently. Super video.

KU3X de N6UNX - Nice presentation... I have what I believe to be a proper Nano VNA but a less expensive one that has a MAX of 101 samples. I built a choke using a 140-43 toroid and RG-174. It behaves well hooked up, and my Nano VNA is showing -35 Db at around 6.5 MHz with a nice slow curve up as it heads upward. At 10 Meters it is around -13 Db and at 20 Meters around -26 Db. Not bad, I think. And you? By the way, I can hear the difference, about 2 S-Units down on 20 Meters. And at 100 Watts CW, the wires don't warm up. It is in line with a home-brew End Fed Half Wave. Great pairing of Toroids! 73, Marc - N6UNX

Thanks Barry , awesome tutorial. Love my KX2 , I've had it for 6 months and really like it.

Don't know what I am doing wrong. Even if I simply use a single thru cable supplied with the Nano and do the steps 1) end of cable attached to S11 with open, 2) short, 3) load, 4) end of cable open and load on S21, 5) cable connected to S11 and S21 (thru); the sweep does not go to 0 but stays at the bottom of the screen. As I move the marker it stays around -1.9dB. Would this be because I am not using the 10dB pad?

Anyone having a turn off problem after doing a scan? I have to wait for it to dim before button will turn it off or wait for auto off . Also problem with USB cable, wouldn't turn on unless removing and reinstalling the batteries, reset??

Just a aa230 zoom and thank you for making this video, I hope you make more using it on different antennas etc.... Not a lot of hands on videos out there. Im trying to tune my hustler 5 BTV antenna, having a hard time. 🙏

Thanks!

Many thanks for the video! I've been cruising around youtube, looking for instructional videos, and yours is the best I have found.

Theoretically and practically good ,but i cannot saw the full connection of left side of nano vana ,so it was not cleared what did you connected with nano vana as it does not seen while wire

Very informative presentation! I may be wrong, but it looks like you connected a jumper between input and output of the 1:1 isolator (@ 19:14) instead of connecting it to the nanoVNA. If that was the case then bad readings were caused by no readings taking place on the 1:1 isolator. Overall, great explaination of testing methods for these devices.

Anyone want to sell me a Pico Paddle? I have been searching for years.

Hi, greetings from the UK! Great video, very useful insights. I am glad to learn your opinion about the dedicated paddles for the KX2. I was between those and the Begali Adventure as they also offer an adapter for the KX2. I will probably go for the latter. Thanks for sharing.

A great instructional video on why and how to calibrate a Nano VNA. Brilliant and concise. Thanks! Bob K4FHI

I've got some ring magnets that i found in a fire, they came from speakers but the magnets lost their magnetivity from the fire. Does anyone know if i can use these ring magnets as either a transformer core or as a ferrite bead to choke common mode or parasitic noises? I have lots of ring magnets on broken speakers, some quite large. I'm wondering if i can give them a 2nd life.

Hi. Can anyone help me with using a VNA with open wire and balanced antenna? I am wondering if i can measure the antenna impedance at the feedpoint and then build ladder line to match that impedance. Then can i use a VNA at the shack end to see what the total impedance is at height? The problem seems to be how to connect open wire to a VNA and will that be accurate once the spacing from the ladder line is brought tight in to the coax connector on the VNA? The object is to A. Match / build the ladder line impedance to match the antenna impedance and then to measure total impedance at the shack so as to know the best ratio of Balun to use in the tuner. Thanks.

Excellent thank you

Thanks. Just followed your methodology to measure the resonant frequency of an airwound coax choke for 6m. Worked a treat!

Thank you very much, I still keep learning how to do this correctly and very helpful when I need to refresh my memory.

Thank you

Grazie 73s a tutti da ON3RA

How many db would be fine using 1500w?

I like your style

Where can I get an antenna like this ?

Thank you, you have helped me a lot, nice video good teacher

i guess I don't understand.... Why are you calling a single piece of wire....a balun? It's just an inductor. Although the principle is the same an actual balun won't read that high of an impedance causing the unaware to think he did something wrong.

My NanoVNA H4 does not have the sampling menu 😞

John 3.16-21 Mark 1.15 Jesus Christ saves repent today is the day of salvation tomorrow might to late come to him today.

could you do another where you show the cable setup better? i am lost as to what connects to what.

What is the attenuator for?

Outstanding! Much appreciated. Well done.

Hi Barry. I'm late to the party..by 6 years, but if you would, can you please tell me, does your KX2 "click" when you touch BAND, then turn the VFO between bands? Mine does and I'm worried. Thanks

You shouldn’t be holding any of the wires while calibrating or testing…

I know this is an old video - but I've been thinking about picking one of these up...

Very informative video. You got a noisy pen there.