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That’s true only if the reactance is zero. Many RF engineers call them Pastercrap. I tested 10 Pastercrap loads and not one met the specification. A Keysight load, with a better specification, would

Chris, I think you had it right, just add a wire or a metal film resistor across the screw terminals of the balun when doing the calibration. An inch or two of wire won't make much difference at 14

Looking back at Hugen's original post: /g/nanovna-users/message/15943 it seems he is simply giving buyers the option of having adapter cables with the N-type connectors already

Hello Jerry, Sunday, August 16, 2020 Yes, when I measured using RG-58 test coax the results were very different from measuring with LDF4-50 coax, That's the influence of the coax itself. I want to see

Biastee wrote: Yup, they'd be able to demonstrate they are siding with the APC7 camp. So with those doing measurements using $10k+ worth of gear. Which could be lucrative, but not their current target

I think Chris had it right, assuming he wants to measure his antenna and does not want to measure the effect of adding all that coax and the balun into the mix: Doing the O-S-L calibration "at the

Although APC-7 connectors from China are now available, they still aren't cheap. One connector from China costs about as much as the entire NanoVNA; the US-made ones from Amphenol are double that. And

Two opposite camps have emerged in the connector debate. I suspect the preference for either N or SMA is dictated by the application. The 1st camp consists of those whose primary application is

The O-S-L should be done at the same point where your transceiver will be connected - so, assuming you have a short (`12 inch) test jumper connected to Port 0 on the NanoVNA - you would calibrate with

16 August 2020 I want to use a nanoVNA the same way I use an AIM4170 analyser and do what AIM calls "refer to antenna" which is their way of saying put the O S and L at the end of the coax to

At the end of the day, if like me you are dealing with a lot of "rf modules" bought on eBay, Aliexpress, Taobao etc... which are ALL sma equipped the going SMA over N is just the natural choice, it is

Hi The choice between N-type and SMA seems to be preference driven by what connectors are fitted to other equipment you own; a number of people have said that SMA performance is quite acceptable. For

Thanks for feedback; I was also lost there before; CORRECTION option was added by some firmware "update".

If you want N-type connectors on your $40 VNA, then put the VNA in a enclosure with a couple of adapter cables. Choose a bulkhead style type-N so you can mount it on the wall of the enclosure. A

The advantage of the N-type connector is durability, which is very important for benchtop instruments. However, a high-quality SMA connector can also work at more than ten GHz. For example, the

Oristo, That was it! I toggled the “Correction” and it is working! Thank you! Mike

Oops, replace "CALIBRATION" with "CORRECTION". Depending on FORMAT and CHANNEL settings for each TRACE, scans can be meaningless.. [email protected]> wrote:

Perhaps CALIBRATION is toggled off?

Hugen, speaking of shipping, DHL and UPS have CRAZY customs fees, DHL charged me 1.5X the value of an item I bought from ebay... I have had really bad experience with DHL and UPS... So in the shipping

Depends on FORMAT settings, but numbers on screen shot look pretty huge; perhaps cal failed (did you first select RESET?) or "Clearconfig 1234' from a terminal program is wanted