NanoVNA To Test The Loss & Length Of Coax Cables by Jim W6LG YouTube Elmer for Ham Radio Basics

The NanoVNA does many things. Two of which are testing coax cables for loss and length. Jim W6LG shows how to do both in this first video about the NanoVNA. In a subsequent video, Jim will show how the NanoVNA can be used to check antennas for resonance, impedance and reactance. The software that Jim uses is NanoVNA Saver. That software is free and easy to use.
Here is the link to the software that I used: github.com/mihtjel/nanovna-saver

[@HarryHamsterChannel]

I love this man. He cares and he's smart.

[@ham-radio]

Thanks for the kind words. I learn during the preparation for each video. Often, it takes days of research as I try to make the video presentation accurate. Other things like lighting and sound often don't go the way I had planned. Again, thanks Bob you writing. 73, Jim

[@dpratte]

Another great one, Jim. PLEASE continue your investigation and opinions concerning the NanoVNA. Bought one and I found your video very helpful / confirming.

[@fplbighead1352]

I am here to learn how to use the NanoVNA for Helium antennas and cables. I really appreciate your time and effort

[@Joe-KN4IFI]

These NanoVNA's for what they do are great for the price. Looks like you are feeling better Jim. Take care. Great Video. 73s Joe

[@AustinBoil]

Just got my 4" screen NanoVNA, what a great little tool. Getting my license in 1958, we only dreamed of ever owning a piece of test equipment that does what this does. I got the "H" model that just came out so it goes to 1.5G. Can't wait to see your next video on the Nano. Thanks! Mike N7ASZ

[@johnbailey4664]

Great video Jim, looking forward to future vids particularly on the VNA . I’m in the UK and have seen them priced as low as £25 GBP over here. Great piece of kit.Good luck with the floor!

[@visitslovenija]

Hi Jim, I have only recently stumbled on your videos and have been enjoying watching them, so thanks for all your time and hard work. I was first licensed in the 70's but am still learning, so keep up the good work! I gather you have been through a rough time of late, so wish you all the best and hope all is going well. 73's, Ralph EI2KU

[@abdiazizfarah3014]

I was just watching your HAM Radio video and saw your comment your hospital trip. Immediately jumped to see if you had recently uploaded, and I'm so glad you're well. Good luck, boss. Stay healthy.

[@ham-radio]

Shukraan my friend. That is very kind of you. I hope to be back on the air in a few days. It has been 1 year since I went off the air at the old location. From my family to your family, thank you and we wish you the best for this year. 73, Jim in CA

[@samgrieg2542]

Very cool. I'm now convinced I need to buy one. Thank you and looking forward to your subsequent videos about this gadget. 73!

[@ham-radio]

I am working on that now. Thanks Sam and Happy New Year! 73, Jim W6LG

[@la7yka]

Best 73's. The NanoVNA is for sure a great tool in the entry-level price range.

[@davep6977]

Good video. I use my VNA all the time, especially last summer redoing my antenna's I HAD a MFJ antenna analyzer and sold it. Seeing the resonant point and characteristics of the antenna (like multiple dips) on a graph makes it so much easier. They've a new larger VNA out that's like a cell phone (NanoVNA 10k-1.5GHz Antenna Network Vector Analyzer VHF HF LCD 4'' Standing Wave)

[@stevene1194]

Thanks for the video just ordered mine from Amazon so finding this video was great!

[@leeharrell67]

This is great! I look forward to the next video on this device. I hope you and your family are well!

[@ham-radio]

Thank you! New Doctor wants new tests. With the virus in N. Cal going high, I am objecting to more of the same tests. Turns out, they moved ill prisoners from So. Cal to N. Cal. Those prisoners, infected hundreds and flooded the hospitals. Many will die in the next few months. It is a mess. Some prisoners were guilty of not much and will never get out. For some, it will be a death sentence for a dumb crime. 73, Jim

[@angelhelp6819]

I'm going to check it out Jim

[@jlca320]

Hey Jim, I hope all is well with you. HAPPY EASTER! I really enjoy your videos and looking forward to your future videos.

[@robertstarkie3535]

Just ordered a nanoVNA,5 HF antennas here,I've needed an Analyzer for years,more nanoVNA videos welcomed Jim.TNX & 73,ve7eab -Bob- dit dit

[@mplmpl7780]

Hi Jim could you please explain how you connect the cable ? Do you short the far end of the coax ? Thanks

[@Paddy_Roche]

Fine video Jim, I have the NanoVNA without a battery unfortunately. I have only used it for SWR so far, so I look forward to more information from you on this great tool. Jim, I also want to let you know how invaluable your channel has been to me these past 3 years since becoming a ‘Ham’. I am truly grateful to you for the time and dedication you put back into this fantastic hobby. I am very proud to say I have the best Elmer there ever was, with love Jim 73 de 2E0TWD x

[@ham-radio]

Thanks. I am wanting very much to get all of the construction done and get back on the videos this week. 73, Jim

[@johannilsson4968]

Its a game changer for ham radio operators!! Its very usable for antenna tuning, cable loss measurements. For the money its hard to beat. You even get a „cal kit“. The load is not the best, but works ok. I would not use it for professional work, but for a ham radio operator this is good enough and almost a must have. I have access to really expensive analyzers, at least 40-50 dB more expensive. I would not use this for Professional work, but home I dont bother to to bring the „real stuff“ along anymore. Btw the guy who made the software is not from Africa, but Sweden.

[@broonlife]

Hi Jim. Another great video on a particularly interesting product. Would love to see some more using the NanoVNA, like testing traps and filters etc. Love your work and best 73 from UK. G6NLX.

[@TheRetiredtech]

Yes it is a fantastic device for the price. Also check out the EU1KY design and the extra firmware for it. Also known as the FAA-450.

[@watsok]

Great video of the functionality

[@ham-radio]

Thanks Kenneth. It is very much appreciated. 73, Jim W6LG

[@markmaier9184]

Wow! You are a great teacher and I appreciate your straightforward manner. I am really enjoying learning much more than swr tests with this little tool. I agree, if this device only did that swr measurements, (and it does so nicely) it is worth the money, but wait! (as they say on TV) it also slices, dices, and does Juliet fries!

[@ham-radio]

You're very welcome! I am looking at one of the newer models. I would like something that is more rugged. 73, Jim

[@acestudioscouk-Ace-G0ACE]

Hi Jim, I've bought one of these so your video has been very useful. Thanks and 73, G6XIB

[@KennyJacobs]

Haven’t heard from you in while (as in a new video)... Hope everything is ok.

[@greasydot]

Wow Jim, you look and sound great. Hope you are ceiling better. Another great video. I have the MFJ-269 and paid way more for less functions. We are close to Some AM broadcasting stations and on my 160 and 80 meter EFHW project I couldn't use it because it would pick up KTSA and KKYX from 30 miles away and get really crazy readings during broadcasting hours.

[@MrScotchpie]

Hello Jim. We don't use the term "Elmer" in the UK but you were and are my Elmer. I'm licenced now but before, I watched all your videos and learnt more than I can remember. Hope you are settled in your new home and the radio room is coming on as planned. Keep well Jim, I hope to one day hear a distant CQ call from W6LG.

[@ham-radio]

Wow, thanks. That is very generous of you to say that. I hope to get up an antenna here at the new location so that I can be heard in the U.K. Thanks and I will to live up to what you wrote. Regards, Jim W6LG

[@AmRadPodcast]

Thanks for the tips. I didn't realize that software existed. Will give it a shot today. 73 W4VXH

[@verystupidhandle]

Jim another Great Video! I'm going to buy one of those! Handy! 73, Elmer!

[@ham-radio]

Thanks Mark for all. I will show off my new wallpaper soon. I have a frame that is the perfect size. Take care! Jim

[@b.c.gamingss]

@@ham-radio Hey I am looking to get into HAM radio what is the basics?

[@N0WYO1]

Hi Jim. Just saw your PE video from 2016, and man do you look good compared to back then! Glad to see that everything worked out for you on that front. Good luck with the shack, I'll be watching as you make it happen. 73!

[@ham-radio]

Thanks. I am still struggling a little with issues as a result, It was a massive PE event and I was close to death by the time I arrived at the hospital. I am working on the radio room in the new location and hope to be back on the air next week. I have been off the air for over a year Thanks for watching and we all need to be aware of what pulmonary emboli is about. Many die because they ignore the symptons. Regards, Jim in Rocklin California

[@rhrowley2153]

Missed you,hope you are well. Thank you for your videos. All the best, Bob KD8CLQ 73.

[@ham-radio]

Thank you kindly RH. 73, Jim

[@angelhelp6819]

Once you put terrazzo flooring in your radio room Jim I'm happy that you came back continue making good new videos I'm I'm happy that you're back and good and good health 👍☘️🌈

[@ham-radio]

Thanks Angel Help. I have been pretty much consumed with getting an antenna up and working. I have the boom in place and hope to mount 3 elements tomorrow. The heat has been a "killer'. Temps in the rangelof 95 to 100 with high humidity have really slowed me. The boom I had ended up being 18 feet. I had a couple at 26 foot long but I knew that would be pushing it a bit too far. I had 2 booms that were 14 feet. That seemed too short for 20 meters. I am making the antenna for gain and not front to back. Thanks again for the kind words and support. 73, Jim W6LG

[@1fanger888]

very cool . thanks

[@W9HJBill]

I had a NanoVNA-H (the small 2.8" screen one like you have) and now the NanoVNA-F (larger 4.3" screen and higher frequency) and love them! As you said, the free software and these little devices are so useful, especially if you make your own antennas. For doing a 49:1 EFHW or even tuning up a 6BTV vertical, you can in a single sweep see the entire frequency range and know if you need to trim/tune your antenna for any number of bands. I have a $300 RigExpert AA-55 Zoom and while that is very nice, it doesn't do UHF/VHF. To do that, I would have had to drop $625. For $50 or $110, you can get a device that actually does more. I've also taken my NanoVNA's in to the office and compared their readings to a $30,000 Agilent NA and while not exact, it certainly is "Close enough for ham work". 73 W9HJ

[@ham-radio]

Great information. I did not know about the new model. I will go over to Amazon and see what it looks like. We're lucky to have such a device that we never even dreamed about when I first got licensed in the early 1960's. Thanks Bill. Nice to hear from you. 73 from Rocklin, Jim W6LG

[@W9HJBill]

@@ham-radio I got mine off eBay. Supplied is in Kentucky so you don't have to wait forever for shipping. Most of the sites say 50kHz to 1000MHz, but there is a new firmware update that allows it to work up to 1.5GHz. Aside from the larger screen, it also has a metal body that totally encloses the unit all the way around and the SMA connectors aren't "floating" like on it's smaller brother, they are attached to the metal body. www.ebay.com/itm/Handheld-HF-VHF-UHF-NanoVNA-F-Vector-Network-Analyzer-Kit-50KHz-1000MHz-4-3-LCD/283687994590

[@KE6GRM]

Happy New Year Jim ai6lz

[@Ray-VK3CEO]

Nice to see you still answering comments, JIm. I was getting worried, you haven't posted a new video in 2 months. Stay safe and don't take any risks especially in the current environment.

[@ham-radio]

I am trying but not being 100% successful in getting videos made. Ray, I fell! That fall about a 6 or 7 weeks ago still hurts. I went to the doctor and had xrays done. I broke 4 ribs, 3 on the right and 1 on the left. Tonight, it still hurts. The xrays were done 3 weeks after the fall and there was some healing on 3 of the ribs. On top of all of that, the first guy to die from the virus was a neighbor. That brought a helicopter, 6 police cars and reporters to our neighborhood. I have stayed at the house in self imposed quarantine. With emphysema (never smoked), that virus could really cause some problems. I do have a new oxygen machine. Thanks and I am really trying to get it all together for new videos. I have lots of ideas given the new QTH and the situation around me. Thanks!! 73, Jim

[@Ray-VK3CEO]

@@ham-radio Thanks for the reply, Jim. Sorry about the ribs and the emphysema, it's bad enough just cracking one rib. I shouldn't complain about my chronic ailments, HCM and Diabetes, Osteoarthritis, plus living with SADS. Get well, it's important for us to keep our health up with this C19 virus, especially for those of us over 70 y.o.

[@petersmilla3150]

@@ham-radio i really like your videos. hope you get well soon ... 73 27!

[@stephenmilldrum2456]

Hi Jim. Sorry to hear about your pains but very glad that you are hiding out during this time of the virus! Keep it up! I am looking forward to your next video on using the NanoVNA for antenna analysis. Did you see that there is now a version 2 of it?

[@spy8464BB]

Thanks. Really appreciate the info . My analyzer will show up tomorrow then once the tree is up the unit will then be wrapped up and sit there for about a month. Until then I will be watching your videos. KI7JBF...... thx

[@chrisjones8741]

Thanks! I’ve been thinking about getting one of these, so it’s great to see another video about it. Especially from someone I already know and trust. One suggestion, if I may - I couldn’t tell what the video was about from the thumbnail and title, without clicking on it. The title was so long and the part about nanoVNA was at the end.

[@ham-radio]

I will fix that now. Thanks, Jim

[@ham-radio]

Okay, thanks, I think I got that fixed. 73, Jim

[@carlbrowning8409]

Did it come with the short and load? I've been tempted by this device at gigaparts...

[@TheRetiredtech]

@@carlbrowning8409 they all seem to come with the osl hardware and a couple of short cables.

[@bsdguy]

Thx Kim, new sub....

[@colincolin30]

Thank you, Very much look forward to the next video on the NANAVNA.vk2jcc

[@ham-radio]

Coming soon! I am working every day until late on the station. I did get the tower up in the air. There is not antenna at the top. I am hoping for some help from my son this weekend. Thank you very much. 73, Jim

[@mat-tunertuner4183]

Very good.

[@ham-radio]

Thank you! 73, Jim

[@teetrevor]

Thanks once again for a very worthwhile video. Been rewatching old videos trying to find where you identified the station software you use. I give up. Can you tell me?

[@glenmartin2437]

Thanks.

[@OE6MBG1]

Thanks for the video, Jim. Mike, OE6MBG

[@ham-radio]

You bet Mike. How are you and Sissy? I think back to your visit and wished that we could do that again some day. The move has frankly been a struggle. My health decline has accellerated and projects take forever. I motorized that tubular tower and will have a max height of about 13 meters. There is a motor for laying it down, extending the square tube and for rotating. City code enforcement officer visited a neighboring ham because he was in excess of the 9 meter height restriction but just little. That other ham came by for a visit and is just super nice. We had a great conversation. He has the same tower and is one of about 3 guys that I know of on HF who have some kind of beam. I have built the elements for a copy of a Hygain 203ba. The CEO does not approve and hence the slow down. It may start out as 2 elements and grow when no one is looking. Ampzilla is in pieces. The three other amps seem to be fine. One is a GS35b, two 3-500z with 3.5kv and the 500 watt Elecraft. Thanks Mike and 73 from Rocklin California where it will be 100F today. Let's see 1.8 plus 32F...so about 33C.

[@OE6MBG1]

@@ham-radio Hi Jim, glad to know you are on the way back to HF. Hope everything will work out with equipment and antenna! Talked to Ira a few days ago, he is waiting for you to come on the air, too. 73 Mike & Sissy

[@AlanRibby]

KEOZHJ, thanks Jim , this all new to me but im going to check it out, ounce i save up for a few new toys, saving up for an HF Radio and other equipment this is not a cheap hobby but none are, thanks Jim , god bless and have a great day!

[@ham-radio]

Thanks very much. Isn't there a song where "nobody knows your name"? Cheers maybe?? HF is a blast. Check with locals and a local radio club. Often there is a radio from an estate at a very low price. For your first radio, get something that does not need repair. Something that you can put on the air right away with a clean signal. Take care & 73, Jim

[@AlanRibby]

@@ham-radio thanks i will , there is a club im trying to contact and im looking at a cheap portable to get me started, i will keep my i out for some sales, KE0ZHJ 73.

[@richb.4374]

I avoid coax loss by using balanced feed. It may be old school but it's the lowest loss transmission line you can use, even beats Heliax.

[@clems6989]

Hope your doing well OM....

[@cubeistgames7985]

Having watched some videos that had comments about some health issues, glad you seem to be doing well. KD9OVL (hopefully to change soon). 73

[@ham-radio]

Ya, then I feel a short distance and broken ribs. Man that hurts and continues to hurt. Breaks were confirmed by Xray at Kaiser. 73, Jim and thanks again!!!

[@cube1us]

My late father, at 90+, fell against the arm of a chair while moving a plant, a couple of days before he and my brothers were going to go to a baseball game. (He made it to nearly 95 before aortic stenosis finally caught up with him.)

[@rentacowisgoogle]

Hey Jim! I'm thinking of getting one of these so I can tune antennas that I want to make. I have another antenna question for you: You said in this video that you don't recommend RG8X for 2m and 440. I'm wondering why that is, and if your reasoning still applies for HT's (less than 10W output)? Finally, which coax DO you recommend for good 2 meter and 440 performance?

[@g0fvt]

They are excellent tools, mine has taken the guess work out of measuring common mode impedance of my choke baluns.

[@ham-radio]

Nice to hear from you again. Is it possible for you to do a very brief description describing how you did that test of common mode. Thanks from Jim W6LG in Rocklin, CA

[@g0fvt]

Jim W6LG , the layout was effectively the same as G3TXQ used on his website. IE for example if the balun is wound with coax the extremities of the braid are treated as a two terminal device. Each end of this “inductor” are then connected between the ports of the VNA as though you were sweeping a filter. G3TXQ then calculated out the resistive and reactive components separating them with a little vector maths, I didn’t. I purely looked at the attenuation between the two ports. FWIW I believe that winding them with coax leads to high capacitance between windings, I am now winding them with PTFE insulated wire in a broadly bifilar style. My measurements using FT240-31 cores have been very interesting. Kind regards David

[@theoview]

Hey Jim, again a great video, thanks! Please what is the productname and model nummer and reseller the nankvna that you are using ,Jim? Kind regards, Theo.

[@batfalcononyoutube]

Thank you for the presentation of the abilities of this little device. I followed your instructions, though the results were not so accurate. So, I have a key question. In order to measure the length and the losses of a given coax, must it be free at the far end? Or can it be connected to the antenna? Thanks again, 73 de SV1SLB

[@ham-radio]

It is recommended that it be open. Thanks for asking a very good question. 73, Jim

[@paulhastings3109]

Guess I need to look into this. I shake bad and as a kit can come pre-built

[@LivePDOfficerInterviews]

Great video my friend! I have a Zoom 35 that I’m really fond of that helps with antenna analyzing and coax loss/velocity factor. If you’d like to borrow it for a video, let me know and I can loan it to you. I can tell you this, it wasn’t as darn inexpensive as your device is! Wow!

[@ham-radio]

Thanks. I hope your trip went well and that you got home with no issues. I think your timing was excellent...maybe even a little lucky gven what is going on now. Your ability to get interesting uniformed officers to participate is amazing. Keep up the good work. 73, Jim W6LG

[@LivePDOfficerInterviews]

Jim W6LG Thanks. It’s getting more difficult now because like all public servants, our first responders are getting stretched to the limit working a lot of hours and putting in a lot of time. Thanks buddy. My father-in-law is studying for his technician class. He’s frustrated because of just not understanding things. I sent him your way to watch some videos.

[@rl4795]

Great video... Would you recommend getting this NanoVNA or the MFJ 269C ? Or both? (or better, would I NEED both) ? Thanks Jim.

[@ham-radio]

They have many differences. If money is tight then the Nano would be my choice. The MFJ device is great and has been a big asset to us. I do have an older version of that...actually more than one. I prefer the Nano for most testing because of the very nice software that comes from the guy in Africa. Thanks Robert for asking an excellent question. I wished I had a better answer for you. 73, Jim W6LG

[@kerbsidemotors9249]

3d printed case off eBay uk. Buy Nanovna in black and make sure shielded version and one without larger rocker switch

[@MrAbrandao]

one point of the coax in the device and the other open?

[@KE6DOA]

Hi Jim hope everything is good with you enjoy your videos quick question about coax length I’m getting ready to cut some brand new LMR 400 to go with my new steppIR DB18 antenna , is there any formula to stick close to as far as length or can I just cut it willy-nilly to whatever length fits neatly into the shack you know multiples of three or whatever just some thing I’ve heard most of my life and never got the real skinny on thanks in advance

[@ham-radio]

It is my opinion that it does not matter. In some situations where you have an antenna on a single band and you want to know what is happening at the feed point, then velocity factor times the wavelength (or half) is helpful. With that antenna, it would be impossible to find a length that matches all of the possible frequencies or bands. Use the best silver plated Teflon insulated connectors that crimp onto the LMR400. Do follow the instructions from the manufacturer (I've met then a few times). Do use a choke. Ferrite beads should be fine. 73, Jim W6LG

[@KE6DOA]

@@ham-radio thank you 73

[@batfalcononyoutube]

Hi Jim, On your last video regarding the RigExpert AA35, you mentioned that the resonant frequency on an antenna is not the same where the SWR is the minimum. Can you please tell us if and how the NanoVNA can measure the resonant frequency? Thank you for your time, 73 de SV1SLB

[@codydixson3101]

Hey Jim just getting into radio im a long haul truck driver i operate a dx98vhp stock mic on a willson 2000 trucker antenna and i know import radios arnt the best but this as a mobile unit works perfect it has a 200watt amplifier built in and does about 70watts barefoot my question is how would i maximize my powe out put so i can talk longer distance i know getting a 102 whip would give this radio full potential but i was wondering if i cut it down to a 51 inch antenna 1/8th wavelength and still get good clear communication long distance another question is with the watts this radio can push how far should i exspect to get out with normal conditions and a 102 1/4 wavelength antenna the reasons i ask is im cosideing leaving this as a mobile unit and building a shack just getting into radio havnt been licensed yet and i watch all of your videos on radio if im ever in the Sacramento area ill try to reach you 1127 the mobile base 73

[@caseyl3631]

Sounds great! but the screen is so blurry im having trouble following along. But i got it! thanks so much very cool stuff thanks!

[@ham-radio]

Sorry about that! I am trying to improve. Soon I hope to have a fix routine with better sound and video. Thanks Casey, 73, Jim

[@jackkelley890]

Jim, when you get a chance could you do a simple video on all the types of common coax used in the hobby?

[@ham-radio]

That is a great idea. Thanks! Perfect for Ham Radio Basics. I have some painting to do first. Need to finish the "green wall" for chromakey. Plus, I am wearing a holter monitor for the next 29 days that gets in the way of everything. It itches too! So I have to work around that thing getting in the way. Thanks Jack and 73 from Rocklin, CA from Jim W6LG

[@tonysdroid]

@@ham-radio The place is looking great! I've learned so much from your videos and you inspired me to get my tech license, so thanks a lot for that! I'm also looking forward to a video on different cable types, particularly wondering your opinion on using RG11 (75 Ohm cable) as a cost save. I've looked at many loss charts and it seems decent for HF. I've read that it's not a big deal there, with dipoles and all, just tweak the antenna length for good swr on your frequency - how about on 2m feeding a copper jpole? I'll set it up this weekend, maybe I"ll let you know how it goes! Thanks!

[@RazorBill42]

Hi Jim at 13:00 you mention making a video to measure impedance of an antenna with the NanoVNA. I can't find it in your library, did you make one? Thank you for all the great videos!

[@2wrdr]

I'd like to see that as well.

[@bobbyt2788]

Great Video, I do not see the "next video" on analyzing an antenna. Is that here and I just am not seeing it?

[@phredyh]

Jim... do you have a link to the software that the SA fellow made. I just bought a NanoVNA and checked the resonance and SWR on the elements of my DX Commander ABV and I was very impressed with the results. Thanks for the video and looking forward to the others. Fred, KE0EF

[@TheRetiredtech]

Just Google vnasaver it isn't hard to find. Good software.

[@greasydot]

Hope you are doing well Jim. Keep checking for new videos.

[@ham-radio]

Getting there. My fall and broken ribs have slowed me a lot. Still hurts like H.... Thanks, Jim W6LG

[@greasydot]

Wow I didn't know that. I am so sorry to hear that. Take care of yourself and stay healthy from this virus. Wishing you a quick recovery .

[@KD4MM-1]

Generally good video. Only one very important technical comment. The loss you're measuring in this instance is not transmission loss, but return loss. You're only conducting an S11 measurement. To measure transmission loss you need to do an S21 measurement, ie. both ends of the cable under test connected to both Nano ports,

[@K7AGE]

I received one from Amazon for about $70. It would not charge. I filled out the return information on Amazon, printed a free shipping label and in about 3-4 days I had the replacement. I've so busy getting ready for Quartzfest that I have not had time to play with it. I'll take it to Quartzfest to play with it there. I'll load the pc software now! We used vinyl plank flooring in the house. It goes down quick.

[@ham-radio]

That flooring has been debated here in my house for several days. I am about to just paint the floor and call it done. I want to get the desks into that room and get back on the air with a dipole in the backyard. It has been a year and very much want to get things going again and have some fun. I met some very nice guys from this area that meet at a local guys lab. A lab that has everything you could ever want for testing anything. The owner is super nice and has invited me to return anytime to do a video. A bunch of cables are in the room and lead to the attic. From there, it will take a few days to get the other end to the master bedroom closet and then out the back wall at the A/C compressor. From there, I have not figured out. Probably just a simple dipole for starts. How's your XYL feeling. I am wearing a holter monitor and I hate this thing. It hurts and is in the way. Keep in touch and lets get together for a voice QSO on another means of communication. 73 and thanks again for your contribution to amateur radio. Jim in Rocklin on a postage stamp

[@richardchandler9027]

What program exactly and how is it set up? I was getting excited till that got skipped over. Much appreciated.

[@MrFrahimi]

Hello Jim and others. Doe anyone know if the Nano VNA can operate at higher frequencies 500-1500mhs (Frequency range for Verizon FioS on Coax (MOCA))

[@ronmorella6541]

I am thinking I need to get one of these. I have been playing with alot of wire antennas and it would be nice to know what is really going on. Can you please let me know whatever info you have on the software. Great video. Thanks, Ron n2imb

[@ham-radio]

Here's the link: github.com/mihtjel/nanovna-saver Thanks, Jim W6LG

[@faisalrahmanAO]

Great information on video Jim. I picked up a Nano VNA F model and I love it. Testing out all my cables before setting my HF station up. 73's. VA3MFR

[@ham-radio]

Glad it was helpful! 73, Jim

[@artjury7564]

Hi OM hope you are well. How do you hook up the coax?

[@ham-radio]

I use an adapter and sometimes, more than one adapter. There is an adapter that has SO-239 UHF female on one side and SMA male on the other side. Thanks, Jim

[@lwoodt1]

Could you put a link to the one you ordered please. Thanks Jim.

[@thesydmc]

It's here github.com/mihtjel/nanovna-saver/releases/tag/v0.2.1

[@lwoodt1]

@@thesydmc Thank you Syd

[@no5x937]

Jim, great introduction to the nanoVNA. Is yours the -H or -F model?

[@ham-radio]

I don't know. I do know that it is an older version. When they come out with a significant change, I will buy another for testng. Sorry that I can be more help. I am really an HF guy and don't do much above 10 meters. The device worked great at 440. If you know of a way for me to determine which one I have, please let me know. 73, Jim W6LG

[@AustinBoil]

@@ham-radio My H model goes up to 1.5G so believe that's the biggest difference. Maybe newer firmware but not certain.

[@danielpincu7743]

Hello sir! I'm Daniel, YO8UFO. Can you determine with NanoVNA if a coaxial cable is a 75 or 50 ohms? Let's assume that nothing at all is writte on both cables. Thanks!

[@kevinjones9586]

2 things, forgive if I missed it while watching: 1) What is at the end of the cable? Short? Open? 2) Cal is done with the standards directly connected to the port, correct?

[@ham-radio]

1. open 2. Yes 3. 73 and thanks. I need to get mine out today and test some cable. But man, it is going to be 100 degrees. Part of that cabling is in the attic. There is no way I can go up there today. 73, Jim

[@kevinjones9586]

@@ham-radio Hey, thanks so much for replying. I have a 500 ft roll of RG6 that I want to get the loss on. Can't always rely on the charts for that, especially when it is not a flagship brand.

[@garyrobinson8991]

Jim, there are several items on Amazon called ‘nanovna.’ Might you please be able to post a link to this specific one ? Many thanks, & 73’s Gary....WB8ZGV

[@TheRetiredtech]

I am not Jim but they are pretty no much all the no same. Luck of the draw. I buy Amazon so I can return if bad. The little switch piece on the upper right seems to be the weak link. Some haven't been soldered.

[@ammocraft]

There are a heap of so-called "fake" ones out there. There are a couple of good videos (With links in the comments to reputable suppliers) from Kevin Loughin too on these.

[@christiantreldal1585]

Just to your information Jim. Denmark is not a part of Africa, we're a country in Scandinavia, and NanoVNA is written by Rune B. Broberg (5Q5R) who is a dane. 73 de OZ1GNN Chris

[@ham-radio]

Gee. Really! That is a little too sarcastic. Yes, I do know where it is and can point it out on a map. Unlike some of our leaders over here. I thought the 5Q allocation was for Madagascar. Hence, the confuse about location. For those who may not understand, here are the allocations for just the number 5: 5AA-5AZ Libya (Socialist People's Libyan Arab Jamahiriya) 5BA-5BZ Cyprus (Republic of) 5CA-5GZ Morocco (Kingdom of) 5HA-5IZ Tanzania (United Republic of) 5JA-5KZ Colombia (Republic of) 5LA-5MZ Liberia (Republic of) 5NA-5OZ Nigeria (Federal Republic of) 5PA-5QZ Denmark 5RA-5SZ Madagascar (Republic of) 5TA-5TZ Mauritania (Islamic Republic of) 5UA-5UZ Niger (Republic of the) 5VA-5VZ Togolese Republic 5WA-5WZ Samoa (Independent State of

[@elrazky]

Hello Jim, we haven't seen new videos since this one.. I hope all is good with you, plz post an update soon . 73s Kali

[@ham-radio]

Just about ready to do a bunch of videos. Thanks for asking. I fell and broke 4 ribs. That caused a long delay in that I had to recover first to continue building the radio room. Thanks!! 73, Jim W6LG

[@halisidrysdale]

@@ham-radio , glad you're back up and on the mend - having just found your channel and taken up the hobby in the UK, your a valuable educator on KZbin. Look forward to your future productions and keep up the good work. 73

[@tomw5vlt119]

Hi Jim, been a few weeks, wondering how you’re doing. I know well how long setting up shop can take, especially with distractions, but just wondering if you’re OK. If nothing else to say hi to your viewers, can share some photos of any progress. If you need labor, I’m sure a shout out to the community here would be responded to. I’m not the closest here in Texas, but I’m willing too. Anyone would enjoy the oppty to work and learn from the process. Sounds like your shack aspires to be very interesting, especially to novices like myself always eager to see another shack design and set up. Best regards! 73

[@ham-radio]

Hi Tom, Thank you. Oh, I did respond to you but did it in the wrong way for KZbin. Hence, it went nowhere. Thanks for the offer. Here's where the process is as of tonight. Walls are painted, electrical outlets are finished with cover plates, furniture is in the room, much of the equipment is on the ham desk, video editing equipment is on the other desk, 4 coax cables are installed in the wall and terminate in the attic near the rear wall of the house, rotator cables are not finished but are roughed in, ditto the antenna switches, 12 volt power supplies are in place with several devices not yet connected, 5 volt power supply is operation and connected to an "on the air" sign, the solid core door is in place but the digital lock does not work, 8 security cameras on 2 systems are functioning but need alignment, six digital montiors are functioning, 2 of the 4 computer systems are working and that's about it. Still lots to do. A friend from my the area where I used to live has been helping me. I had horrible reactions to two medications that put me down for a few days. One was Amoxicillin. I had severe reaction to it. Tom that is more than you wanted to know but with your kind offer, I wanted you to know where things stand. It has been down to freezing here at night and cold during the day. Tomorrow when my XYL is not looking, I will drill some holes in the rear wall of the house and put in bulkhead coax connectors. Then with any luck, I can connect some dipole antennas in the very small backyard. Boy I sure miss the acreage of the old house. Take care my friend and thanks so much for the offer. I have been in Texas a few times and was surprised at the kindness and courtesy extended to a boy from California. 73, Jim in Rocklin, CA

[@tomw5vlt119]

Jim W6LG Somehow I don’t get notifications of replies... have to figure that out. Was just checking in again to see if any activity, and caught the reply. Glad progress is taking place. I’m working on my own shack’s set up, am fully set up except for that nagging last detail ... which HF antenna to acquire, and getting it up in the air. Been stuck on this aspect for months, closing in on a decision I think, but literally every other shack detail is in place; including grounding, bonding, and lightning arresters... just can’t quite pull the trigger on an antenna solution. Best wishes on good health and continued progress on your new grand HAMventure. 73 Tom

[@crashjunkie3106]

Hi Jim...its been 2 months since your last video. I hope your health is well? I miss your videos....Rich VA3WRA

[@ham-radio]

Hi, I am getting there. It is just taking a lot longer. Also, I fell and broke 4 ribs which is compounded by my severe osteoporosis. I have had to go slow and careful. Right now I have to be very careful because the first person in California to die from that virus was my neighbor. I have a complicated medical history and have had to stay away from everyone. Thanks for asking and please hang in there a few more days. I am just about done with all that I can do without help. Thanks, Jim Heath W6LG

[@allanjohnston3884]

Hello Jim, Any new videos coming soon? Looking forward to another nano vna video. take care and 73! KA0VIA, Al

[@ham-radio]

Yes, soon. I hoping today. 73, JIm W6LG PS It will be on setting audio and compression levels.

[@allanjohnston3884]

@@ham-radio Sounds great and I look forward to the video. I am also keenly interested in how your new shack and antenna projects are progressing. 73 Al J. KA0VIA

[@Fr0ntSight]

Can you do it without the computer software? I would like to be able to make measurements in the field.

[@ham-radio]

I don't know how. I am still using the computer software. There are some videos that do show the usage of the device as a stand alone. Sorry that I can't be more helpful. 73, Jim

[@Fr0ntSight]

@@ham-radio Thank you. Do you mind if I ask if there is a video or if you know how too actually connect the HT to the computer? It isn't recognized when I try. Thanks! 73

[@alanbrown4766]

Jim, W6LG: special request. I have a few friends who I am persuading to use a scope to monitor the output of a linear amplifier to avoid flattopping and as a means monitor PEP. Any chance you could put on a tutorial. I'm thinking in terms of using a regular bench scope instead of a station monitor. Thanks, Al W1VTP Best wishes for you in your new QTH.

[@ham-radio]

What I will attempt to do, after a lot of thought given my situation of being in self quarantine, is using a cheap SDR receiver and large screen video monitor with a screen capture device in the HDMI line. You may have read that the first guy to die from that virus was a neighbor. So we are all being very careful...at least us old folks. 73, Jim W6LG

[@Rainbient]

5:07 to start the video

[@KC2BKM]

Can you link us to the one you purchased. Seem to be a lot of clones out there of various quality. the more research i have done the more confusing it becomes. Thanks in advance. KC2BKM

[@angelhelp6819]

Jim I just bought a yaesu 450d ham radio it's a good unit let me know 🌈👍

[@xion2020]

Hey Jim what the address to you webpage ?

[@luke8210]

Good afternoon, first off I enjoy watching your videos. Thank you. I'm a cb guy, looking to possibly get my ham license. My main reason is the trash language on CB these days. I have young children and it's not a good mix. Are there any tips you could give to a guy like me considering making the jump. Right now, the coronavirus has us locked down so I have plenty of time to study....any feedback is appreciated.

[@ham-radio]

Yes, get off of that other stuff. Do not carryover those bad habits to ham radio. Leave the crazy jargon behind. Find some local hams and ask for help getting a license. Likely there is a club in the area that can help you. I have some videos on taking the tests. Go for the General Class License and don't stop at the Technician Class License. HF is a lot of fun. Good luck and get that ham ticket. 73, Jim W6Lg

[@luke8210]

@@ham-radio hey, thanks for the reply and advice. I was not sure if I should stop at technician or not. Thanks. Its definitely time to move on from CB. I cant knock it to much, it got me interested in radio.Hope you are doing well. I noticed you hadn't posted in a few. 73

[@kc1kug82]

I think i worked a W6LG pirate! Didnt sound much like you. I was operating as HH2AA on the 26th of April UTC. Audio sounded too bassy to be you. Hopefully it was you, KC1KUG

[@zeljkoadzic1692]

For better characteristics need be good shielded !..

[@Aleziss]

there are so many variants and copies of that thing that I don't know which is the right one to buy anymore... white, black, some with the gekko, -h and -f variants, some with faraday cages, some don't... it's getting complicated now getting the right one and understanding firmware releases that do not seem to be compiled and not so simple to upload in the device...

[@ham-radio]

The software is easily gotten. I have not changed the firmware but there are lots of sources for that too if you "google" that want. I bought mine from Amazon know that I could easily return it if it did not function correctly. So far, it has been great and very useful. 73, from near Sacramento in CA, Jim W6LG

[@gbennett58]

I got this one: smile.amazon.com/gp/product/B07T6LXNTV/ref=ppx_yo_dt_b_asin_title_o03_s00?ie=UTF8&psc=1. It is a recent version which includes a display of the battery level. It seems to be one of the good ones.

[@Aleziss]

@@ham-radio thanks for the reply, the software might be easily gotten but on which variant ?

[@Aleziss]

@@gbennett58 yes that seems the same Jim got... search for nanovna-f, nanovna-h and now I found a NEW nanovna-h4... plus there are white, black and the one with the gekko logo on them... so many different variants that it is difficult to know which one to buy and how to get support for those variants... the one you listed is not available in Canada though...

[@wadepatton2433]

Do I need a Windows OS? All my computers are Linux boxes.

[@jodylaneyAA4XT]

Another great video thanks Jim also my ic-7300 that is two years old blow up so got to get new transceiver thanking of getting another ic-7300 or a yaesu ftdx3000 what your thoughts thanks again Jim 73 kn4kbn

[@sandraabarca6029]

hummm....what happened to the icom 7300 ? iam waiting for ic 705 cheers.

[@kerbsidemotors9249]

7300 avoid the yeasu disappointment

[@jodylaneyAA4XT]

@@sandraabarca6029 low power and when unkey and key swr is very high something is shorted😭

[@bobrunge7594]

Where you been, Jim? Hope you are well... Bob Runge. W1LSZ

[@ham-radio]

Thanks. Building the radioroom from zero to completion is taking much longer than I thought. Plus, I fell! Xrays showed 4 broken ribs. Three are healing normally and one is not. My big fear having worked in a hospital for three years is that I fall, break a hip and go to a convalescent care hospital. And, you know what happens there to an old person with a broken hip. If the fall had happened a few days later, I would not have gone in for xrays. About that time we had a helicopter overhead telling all of us to go inside and stay inside. At the same time 6 police cars and about 10 officiers blocked off our street. Scary stuff! 73 Jim W6LG

[@bobrunge7594]

Wow... Sorry to hear that and I certainly hope you are doing well and are getting better. Take care Jim.... we need you friend.

[@tittiger]

Just FYI the software for the Nano viene has not been on the site for 6 months

[@cubeistgames7985]

I’m building something similar based on an Arduino Micro and DDS chip.

[@ham-radio]

Cool. Let us know how it goes. 73, Jim

[@cube1us]

Here is my web page detailing the original unit from K6BEZ, my PCB and my test results. www.computercollection.net/index.php/thrifty-antenna-sweeper/

[@carlofrancable]

Great video , very good job. Unfortunately, the vswr , reflected power , return loss, reactance , etc... Is important ... But they don t tell you anything about the antenna. The vswr tell us how we transfer efficiently our energy to the antenna ONLY ! Judging an antenna only with the criterias explained in your nice video , appear like a short path to the reality . I think that the role of expert and great comunicator person like you is doing exactly the opposite ... That explaining that the vswr , reactance, etc... Don t tell us the whole story about antenna . 73's .carlo