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I wanted to check some unknown ferrite cores, and before that I wanted to try this method with a known core, a FT140-61. The trick is to keep the wires short as possible, and with the least turns to

The test attachments with my model H are easy to interpret. The 50ohm is "silver" in color. The open circuit is an empty cavity. The short has a center pin. You can even leave the fitting off for an

On Tue, May 5, 2020 at 09:57 AM, DiSlord wrote: ... Now if set outmask in scan command, measure only selected by outmask data (and output it) .. ========================================== DiSlord, I

Jay, I would place a connector saver on both ports of the vna. This is just a male to female sma adapter. Then as you deal with these various cables connecting and disconnecting,you will not be

Hi DiSlord I repeated the test with version NanoVNA-H4_20200221 as attached . So you see the oscillations are identical, however you have mush cleaner sweep due to the 1KHz BW and what ever you have

Hi all, Newbee here, so please excuse redundancy of questions, unawareness of previous topics, etc. Did my best to research before posting, but find myself at a dead end. I'm trying to use my newly

I different cords on the market that say there is a resistor made into the "C" end and the cord supplied is not letting info go thru. Tried a newer laptop & i still get the same error. Instated the

Hi DiSlord I updated my H4 with the provided DFU file and here is the results. Dynamic range are as you state pretty good. I think the might be some excessive phase oscillations for the thru

Gabriel started this topic to warn about bad 3 GHz NanoVNA-V2 clones starting to show up. The suggestions regarding buying stateside do not apply to the NanoVNA-V2 because there are no stateside

In these times of challenge and change, the ham radio and the RF community should rejoice. Vector network analyzers — VNAs — haven’t had quite a proliferation, but NanoVNA changed that. Started

Don't have any quality comparison to other vendors, but I've bought cables and adapter fittings from these guys that I've been happy with: https://www.data-alliance.net/ Jay KJ7TTT

Sorry...couldn't resist...not free ;-) "including shipping" -- 73 de Rich NE1EE On the banks of the Piscataqua

Buy from a US re-seller, R&L Elec., fast delivery and you don't deal with those East of the Great Wall. 73, Dick, W1KSZ ________________________________ Sent: Tuesday, May 5, 2020 9:34 AM To:

Amazing. Flashing ensues :) H4 its even better now. *73 de Luís, CT2FZI* *QRV @ 145.300 MHz | **CQ0VMST (VHF REP Monsanto)* <http://goog_717545661> http://www.ct2fzi.net <http://goog_717545661>

Sorry, attach wrong firmware in prev post, use this for tests

I found the same problem. I have contacted Gigaparts and am waiting for their response. min telfon nayad sh'li

I bought a bunch of these RG316 cables in various lengths in early Nov 2019: https://www.ebay.com/itm/113194315576 https://www.ebay.com/itm/113696245383 Rather than worry about paying a premium price

Made many test for get less noise Change: IF to 12kHz Disable AIC3204 internal PLL clock, use direct MCLK as CODEC_CLKIN from si5351 More faster calibrate (measure only calibrated CH) allow reduce

I got tired of waiting but I don't blame DeepElec. Shipping is a fiasco. Maybe it will get here in time to be a Christmas present. I went on Ebay and specified US only and ordered a NanoVNA-H4. I

I suddenly found intermittent performance on my -H, it appears to be a bad cable after very little use. Can someone recommend high quality, perhaps reinforced or strain-relieved SMA-M to SMA-M cables