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Oh, I'm lately working at < 10 MHz and am satisfied to get with 10% of expectations. I wish nanoVNA worked at < 10 kHz..

Wow! I'd say that S11 is not the only strange thing here. For example, why is S21 so peaked? When you say "no matching" does this mean that the input is applied directly to the base (or gate) and that

Looks *much* better! Now, for results? Dave - W ?LEV -- *Dave - W?LEV* *Just Let Darwin Work* *Just Think*

I evolved from Mickey Mouse "tails" to Donald Duck bill:

Thanks I will.

There are several SMA board edge connectors on Ebay. There are models for 1.6mm and 1mm thicknessess. And of course normal models for soldering into board.

it looks like oscillation. Connect the output of the amplifier to the VNA through a 6 or 10 dB attenuator and have another look at s11. Dave - W?LEV -- *Dave - W?LEV* *Just Let Darwin Work* *Just

This is probably not NanoVNA specific. I made a quick and simple amplifier of leaded BF199 and some passive components. Collector is via a coil I happened to have. There is no matching. Input is

On Wed, Jan 8, 2020 at 03:22 PM, Brian wrote: " .. I am not yet convinced that series inductance of the capacitor leads explains why I measure 26pF more at 28MHz. .."

The power inverter, microcontroller, USB and display are already RF sources. BlueTooth should energize only between sweeps.

Thanks all for the comments. I am not yet convinced that series inductance of the capacitor leads explains why I measure 26pF more at 28MHz. The 100pF was connected with minimal lead length so I

You can certainly perform a calibration with arbitrary values - all the electronic calibration units do this - they can't generate anywhere near perfect opens and shorts using electronic switches.

I personally don't think they will last long in the hands of a ham trying to learn, or demonstrate it to others. I rather suspect that sooner or later someone will produce something similar with SMA

Hello Dave, I agree to your statement, if the RF Test Kit is used for an university course. 73, Rudi DL5FA

Yes, but it does not solve the problem that a completely inappropriate connector is used.

I also ordered from Alibaba via a message on hugens store, and paid via Paypal on 12/30/19. I received today 1/8/20 via DHL. Well packaged, VERY nice unit (much better than the junk one I received

On Wed, Jan 8, 2020 at 11:33 AM, <entilleser@...> wrote: I have a relatively new ASUS Chromebook, with the latest Chrome version, and the experimental-web-platform-features enabled. The Web

That tool looks like it would take all of 5 minutes to make. - Ed

I have a relatively new ASUS Chromebook, with the latest Chrome version, and the experimental-web-platform-features enabled. The Web Client is working for me.

Hi, For clarification: An SI5351 outputs square-wave signals that contain only odd multiples of the fundamental frequency (3 * f, 5 * f, ...). To reach 1500 MHz, 7 * 214.285 MHz are therefore required