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Hi Larry - thanks for the quick reply - it’s the Nanovna-saver SW - couldn’t see any soft switch on the SW that I have - but then I’m a newbie to this SW so still finding my around the SW

John, What's the name of the PC s/w you're using? There are a few of them. If it's the Nanovna-APP s/w, be sure you didn't disable the calibration data - there's a soft switch along the top of the

Hi - I’m a new user and successfully loaded the latest version of Dislords firmware on a new Nanovna-H4 and installed the latest version of nanovna-saver on a W10 pc. The nanovna-H4 worked a treat

Found one from FDK, interesting table: [image: image.png] If anyone else is interested: https://mega.nz/folder/pY9xgaYI#9R6wbop7d7MazpMeuJJOiwc <d.milivojevic@...> wrote:

I was referring to these specific cores, I wasn't able to find any catalogue that lists CRT yoke cores. For example, one of them has TDK T6 marking but nothing like it in the TDK catalogue. Probably

Amidon specs : http://www.amidoncorp.com/specs/ FerroxCube: https://www.ferroxcube.com/en-global/download/download/11 TDK:

Dragan, My Thomson Ferrinox catalog is on paper, from 1985. If you need any specific data I could scan the relevant pages for you, but the entire catalog is nearly 100 pages, and I'm lazy... I also

I had a similar idea. Just take an SMA to alligator clips cable, and replace the alligator clips with a single Kelvin clip. Regards, Jason

Roger, I like that test system with little standard-sized pins a lot! For situations where accurate testing on VHF and UHF is needed, and SMDs are available to sacrifice. Remember that SMDs shouldn't

Hi Robert, Voor de NanoVNA gebruik je de standaard sma connectors , geen rp of rf. Succes Jos Op 7-2-2020 om 15:08 schreef PA7RG:

Manfred & Roger - Those jigs are great! I don't expect to do anything above HF, certainly not above the 2 meter band, so they're just right - for me, anyway. And I use my -H and -F for hobby work -

Personally, I always use NanoVNA-App for firmware updates, rather than DfuSE... much friendlier. Mike ------------------------------------------------------------------------ *From:* DougVL

Some say that we learn best by making mistakes - and then correcting them. Don't worry too much - as Mike said, you can't hurt it! Just accept the fact that you might have to try more than once. I

Liam, I got the gist of what you were saying. The government comment was in jest. :) I wonder if #hugen could make a modification to his firmware to include power levels in dBm?

For more precision work and to go up to 250 MHz I use a jig based on an SMA connector and sockets with SMD loads. I have seen this in several places including Owen Duffy's blog. You can get some

My reference plane is not at the 0.75" jack terminals. I use double sided PCB material with both sides connected together and a small slit in the middle to complete the jig. The reference plane is

NOTE: The exceptionally high values of CM resistance are likely due to resonances below my measurement window which has run from 1 MHz through 50 MHz. In de-Qing with a shunt 4.7k carbon resistor,

I forgot: An excellent source of ferrites for CMCs and other 'ferrite intensive' applications is KF7P Metalworks in Utah. I have no connection to that business other than having ordered a number of

I'll attach the measurements of my 450-foot long doublet, yes 2 by 225-foot wires, which has a schematic of the setup at the end. The ladder line is nominally 400-ohm. There is a section across the

Sorry Dave: For clarity can you comment on your 450 foot doublet (225 ft per side) fed with ??? Ohm Ladder line of length XXX feet, choke at end, into shack, matching with 1-30 uH variable inductor.