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Interesting. But I have tried to solder between SMA connectors legs some time ago and it is hard. Soldering several resistors there is probably inpossible(for me). Putting a lot of solder everywhere

How is that done? I can only run basic SOLT calibration. I have several of F to M adapters, but now I would like to work and calibrate without adapters. ( At the moment it really doesn't matter, my

Yes, I forgot that. I am using SMA with V2 Plus4. That is up to 4GHz.

Wasn't the connector used with auto radios called a Motorola connector? The connector has a larger diameter and the center pin is longer than the RCA "phono" connector? Mike N2MS

Official calibration kits from Hugen have been characterised (huge thanks to Kurt Poulsen) with and without the barrel adapter. Use the adapter to turn the male kit into female. Alternatively buy some

You can easily build your own SMA female kit which works quite well. Use PCB board SMA connectors with legs cutoff. Cut the centre pin flush for the open. For the short use copper disc or foil and

You did not mention the specific connector you are using.. Oh and one more thing, what frequency range are you working with?

I use VNA often with a short coaxial. I noticed that a male calibration kit requires an adapter when it is used with a cable. Because cables have a male connector, too. Ebay has only male calibration

Car radio antennas used a 'Motorola' connector. Motorola invented the car radio, when the company was still known as ' *Galvin Manufacturing Corporation* '. It became Motorola in 1930, to signify

And the reason why car antenna cables are not 50 ohms... Centre conductor is very thin to keep impedance high (and parallel capacitances low) DG9BFC sigi Am 07.09.2023 20:14 schrieb W0LEV

Car radio antennas are a 'high impedance' design, and their co-ax cable is also Hi-Z. While 'any antenna' will radiate, some do it FAR better than others. To more directly answer your original

The simple answer is "you don't". As pointed out in another email, the AM car antennas are a hi-Z capacitive probe free space. They are highly capacitive, and measurement in a 50-ohm system, the

Have you tried a known good USB cable? The cables that come with the units usually are designed for charging, not data transfer. Dave - W?LEV wrote: -- Dave - W?LEV

If I have a bad cable, I cut it in half and discard it. This has also been the practice at a number of places I've worked, now retired (thank heaven!). Dave - W?LEV [email protected]> wrote:

*Finally success!* Last night I was putzing, once again, with the NanoVNA H4 that was not measuring SWR but would calibrate. By swapping out connectors I found a female sma to so239 connector that was

Don, excellent pro tip! I've been bitten by forgetting I had a bad cable and didn't properly discard it. Thanks! Allen KI4QCK

Understand that except for very high-end specialized network analyzer cables, the flexible cables we buy have to be considered consumables, as their attachment points and wires will sooner or later

This is what I've come to believe. The 'noise' of the various electronics within the truck I believe is the problem. After I came to that conclusion I took the problem to the local uni and was told my

I meant to say traditional AM broadcast band car radio antenna. On FM broadcast band a whip antenna center mounted on a car roof can be a pretty good 1/4 wavelength monopole. The broad consumer

Yes. There is a benefit to filtering in the physical world, such as a tunable pre-selector or fixed band pass filter to reduce incoming RF that is not within the frequencies of interest. I agree that