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No version of the Si5351 is specified to operate about 200 MHz. The original Si5351A, B, and C were specified to 160 MHz. The later revision, the Si5351A-B (or B-B or C-B) are specified to work up to

Before you pass this by, thinking an idiot out in ham land can't calibrate a NanoVNA OPEN,SHORT,LOAD, THRU..... I'm not speaking of that calibration, which i found excellent in a paper "“Factory”

I eventually gave up on replacing the screen on mine. Not because I lack the skills to do it, but because I couldn't get one sent that didn't arrive smashed to bits when it arrived due to poor

Thank you. Is S11 or CH0 impedance also available in polar plot form. Is the offset delay also saved with calibration file. I attached a Smith chart file with a -1690 delay, does it look good. It is

Right, W5DXP, for lossless transmission lines and tuners the maximum power transfer theorem holds and the location of the tuner would not matter. But your question becomes a very important one, if

Yeah it looks like a bit of a challenge but manageable. What do I look for When buying a new screen? All the screens I found have another board in them and the ribbon cable is not visible to confirm

Starts on Jan 25 this year and lasts for 2 weeks. Many take a one week holiday starting Jan. 24... Roger

Rune has released a "Back From Christmas Update" a few hours ago. See details at: https://github.com/mihtjel/nanovna-saver/releases . I'll leave it to Rune to go into any particulars. - Herb

Hugen, I noticed on the new NanoVNA-H4.2 PCB there is an unpopulated silk-screened area labeled "CARD1". Does that imply that a SanDisk card is in the works for a future version of the NanoVNA-H4?

On Sat, Jan 11, 2020 at 01:45 PM, Kevin B wrote: So I just dropped mine and the screen only turns on, nothing is displayed. Does anyone have an actual web link for a replacement?

Hi Dave, Yes, you are right: There are good examples when we don't want or need perfect conjugate match by design (or whatever other) reasons. No matter, if we need it, can use it, or want it or not,

So I just dropped mine and the screen only turns on, nothing is displayed. Does anyone have an actual web link for a replacement?

Gee, it would sure be nice if some of the firmware upgrade instructions actually mentioned that you need to reset the threshold level. :-)

Hi can some one compare the 4" Nanovna V Nanovna-F, Good and bad points, not just the cost, Thanks Dave 2E0DMB

Those who ordered anything from China recently, be aware that it's soon the Ney Year's Holiday (rat year) so orders myy be delayed. Cheers, David -- SatSignal Software - Quality software for you Web:

I ordered the 4” yesterday from Hugen’s Alibaba presence and Maggie emailed me a PayPal invoice at 8:01 Saturday morning her time. Her reply to my payment did not come back to my personal email

Yes, Express.? No acknowledgement of the order yet...maybe they do not work weekends ;-) 73 Glen K4KV

Looking forward to your review. Did you order with express shipping? Roger

Perhaps, the displY can wait till the actual measurements were made and logged for display. This might help a noise reduction due to display drive signals.

Ok, great. If you are trying to look at the pass band insertion loss response while at the same time the rejection response, dynamic range may very well get in your way. If that sort of measurement is