G4NSJ - Checking Tuned Circuits NanoVNA H4

In this look at the NanoVNA, I use this amazing piece of kit to determine the resonant frequency of tuned circuits.
www.radio-workshop.co.uk/g4ns...

[@G0ogs]

Another great video, it’s difficult to explain magic and you always make me chuckle when you do, well done 👍🏼

[@g4nsj]

Thanks Steve.

[@charliesoffer]

Really helpful, Ray. Many thanks for such clarity, as ever.

[@g4nsj]

Thanks!

[@stevenyemc]

Love the VNA content ray. Thanks!

[@g4nsj]

Thanks!

[@lindsayreid8347]

Very interesting as usual. Look forward to more.

[@g4nsj]

Thanks!

[@ThermalWorld_]

Cool explanation 😄 I love the NanoVNA

[@ecutechltd]

Thanks, Ray!

[@nodshred1]

Just bought the NanoVNA, great bit of kit and your video's have helped me navigate it, Cheers Ray. 73 Adrian M0NOD

[@g4nsj]

Glad it helped, Adrian. Cheers, Ray.

[@peterleather6866]

Really interesting seeing some other uses for the NanoNVA other than just SWR measurements. I'm looking forward to the rest of the series. Cheers Ray

[@g4nsj]

Thanks!

[@berndb.5097]

Hi Ray, enjoy your tea :-) Thanks for the information about the nano vna. 73 Bernd

[@g4nsj]

Cheers!

[@kcscarecrow]

Thanks for this great video Ray. You clarified some of the operational questions I had on the VNA. I have one of these Nano VNA. We also have the tinySA spectrum analyzer which is also really neat. Its about the same size as the Nano VNA. Terry, WA0DTH

[@g4nsj]

That’s great, thanks for commenting. Cheers, Ray.

[@barneykennett9282]

Nice...👍.

[@petertyrrell6690]

Great video. After watching, I set up my nanovna with one cable set with clip leads on just s11 to see if a tuned circuit resonance could be monitored using just this one port; it can. Set up your nanovna to read resistance and frequency sweep as in the video. When the tuned circuit is in resonance, its impedance will be extremely ( infinitely) high. Try setting scale division to say 2000 to get a better peak and have a marker track maximum. I found that the loop attena that I made with cat-5 cable has, at the moment, too much capacitance to tune to the upper part of the MW band

[@g4nsj]

Great stuff, thanks for sharing. Cheers, Ray.

[@TheBrynu]

you can make dip coils ray and use it in swr mode as dip meter.

[@g4nsj]

Good idea!

[@bill-2018]

I've been thinking of getting one to look at my h/b tuneable band pass filters I'm going to use in my h/b tx/rx. As well as look at my various aerials. It looks like a useful gadget. Go on, bore me, I could do with a drink! Bill, G4GHB.

[@g4nsj]

Good idea, Bill.

[@Boozion]

Hi Ray. I wanted to ask you what model number and brand nano vna you got there. I was looking at them on line on Amazon. There are so many different one's out there. Thanks again for sharing. Take care. 😊

[@g4nsj]

It’s from Amazon here... www.amazon.co.uk/dp/B08NF1K76M/ref=cm_sw_em_r_mt_dp_7PZ0TX15W8BMHEQGPHWD?_encoding=UTF8&psc=1

[@Boozion]

@@g4nsj Hi Ray. I found one like yours under a different branded name. Same frequency layout. The name is Aursinc. The KKmoon was no longer available. I think they might both be made by the same manufacturer. Mine was 82.95 US with a 10 dollar coupon. Thanks again for the reply. Take care. 😊

[@joerowland7350]

Great video I just got one a bit ago n am have fun learn all I can do whith it I'm still hopeing for you to have cups for sale 😁 73 stay safe

[@g4nsj]

Cups for sale... love it! Cheers, Ray.

[@The411]

I have an old philco 5 tube radio. I cant find the data for it. Is there a way to find out what the IF should be? Philco made their radios with many different IF's. Or does it even matter if I set the filters to match an IF?

[@g4nsj]

I've checked and I can't find any data. Try guessing the frequency. You can always change it if it';s wrong. If I discover anything, I'll let you know.

[@The411]

@@g4nsj Thanks for the reply. I'll pick a common IF that has the least noise in my area and see if I can get the LO and Antenna to track together. I think I'll pickup a NanoVNA, I've been tuning with a VTVM and Signal injector this far.

[@frankbaron1608]

did you uuse coax to make your corodile clip test leads?

[@g4nsj]

Yes, it's thin coax.

[@clems6989]

"L" because I was taken already ..?

[@raysrants]

L stands for inductor.