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A little shorter link ;-) https://www.youtube.com/watch?v=UlXgZpgE6qk

Hi Garret, since the default output power and ADC gain parameters of the new version of the nanoVNA-H's firmware are optimized for V3.4 and above, there may be more noise on earlier versions of the

Hi Everyone. Just recently updated my NanoVNA-H 3.4 to the newest 1.2.14 SI FW by hugen79. Never had any issues with the unit since purchased in 2019ish until I updated FW so I'm assuming I have a

What can you learn about an Antenna from a Nano VNA graph? Reflection Coefficient? Return Loss (dB)? SWR - obviously PHASE? Smith Chart summary? This is a Part II Nano VNA talk I gave to a British ham

AliExpress quality may be compromised and I won't go that far. While working at Phillips Lab on KAFB in Albuquerque, we were even forbidden to use Pasternack connectors and adaptors. At times, it's

I buy adapters in quantity on AliExpress with good results For one or two I need quick, I go to Joel: therfc.com Lester B Veenstra K1YCM M?YCM W8YCM 6Y6Y W8YCM/6Y 6Y8LV (Reformed USNSG CTM1)

Man, that is some heavy stuff! Justin B.

One shoebox is not enough hi hi My 2 cents Dg9bfc sigi Am 10.09.2023 11:41 schrieb "David Wilcox K8WPE via groups.io" <Djwilcox01@...>:

Dave, Only a 4# coffee can? You can do better than that. If you are in the Midwest there was an electronics retail seller on TV who offered 5# of coffee if he couldn’t beat your best deal. Remember

A coffee can???? ? I have a shoe box full on the bench and a bag that once held a computer full for the antenna range. Dave ..... time to get serious!? ? Kent WA5VJB PS Don't forget Type C, Type

No, 12k is IF used in measure. So not possible measure on this frequency or it harmonics PS in H4 possible change IF in config-expert settings menu

Just buy more than 1 set of adapters - there's plenty of room in the divider bins. 8-) I've gotten too old and grumpy to use the coffee-can approach - when I dump it out I have to root around to find

Problem with this kit is that there is only one of each! Most times, I need several of several kinds. ADVICE: An old sage at VHF/UHF gave me some excellent advice 50 years ago. Get yourself a 4 or

I use Pasternack at work, where it makes sense to pay $40 for an N-to-LMR600 crimp connector. For my hobby use that's impractical. I can assemble a whole bin of adapters (and I did) for less than a

The subject line is longer than the message. .. .. ... .... ..... Dave - W?LEV -- Dave - W?LEV

Where come from the 12 kHz noise? Possible to filter?

Thanks, I did some more checks: power supplies on the pins of the various devices were ok, clocks were also present (except the 32 kHz, I guess it's used maybe only for the RTC during power down?) but

If DFU works the STM32 microcontroller is working (VDD and clock). Check also the internal supply voltages +5V (U3 / pin 1) and AVDD (U10 / pin 5) - expect 3.3 V. Check the output of the 26 MHz TCXO

Wow I'm impressed, what a website everything you wanted to know about testing crystals. Thank you Lex.

I have tested and sorted quite a few crystals using a specialy designd adapter for the NanoVNA. See: https://www.ph2lb.nl/blog/index.php?page=xtal-adapter-for-nanovna