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I have made a table to better see what is the result of the measurements from the PDF file. For my understanding here the *precision of the frequency* is important. Calibration MHz Scan MHz Step KHz

Not sure yet. Target is comparable to one of the nanoVNA family -- NanoVNA Wiki: /g/nanovna-users/wiki/home NanoVNA Files: /g/nanovna-users/files Erik, PD0EK

If you really still need testers, I might be able to contribute. For my day job, I use an HP3585A for phase noise measurements.? Impressive dynamic range on that tank. Also a Rigol for field

This very timely as I have spent the last couple of days looking at Spectrum analyzers to replace my old CTE one. -- Terry VK5TM https://www.vk5tm.com ( https://vk5tm.com )

Dave is correct. The VSWR doesn't vary along the transmission line except for a small variation due to loss of the transmission line. If you do see the VSWR vary, that indicates imbalance on the

On Mon, Apr 27, 2020 at 03:16 PM, Eric Furness wrote: I Upgraded to 0.1.1 All worked ok. How do you get to the TDR function? ===================================================== DISPLAY->TRANSFORM

Only if have problem, if you get correct result, not need do it. Recalibrate need if threshold value change (possible not correct calibration point near harmonic change)

On Mon, Apr 27, 2020 at 01:18 PM, DiSlord wrote: Please not use old calibration, recalibrate after update ========================================= DiSlord, I haven't had any issues with 0.8.4.3 or

DiSlord, Flashed number 3, calibrated NanoVNA-Saver, measured S21 and 49.85 standard see the pictures. Call it a day for now. Jos Op 27-4-2020 om 22:18 schreef DiSlord:

i don`t understand 1 variant is last firmware 2 variant - is 0.8.4.3 (Only 8kHz IF change) 3 variant - is old 0.8.4.4 (2x external freq) You not fogot reset self NanoVNA calibration before calibrate

DiSlord, Flashed number 2,? threshold set to 300MHz,? recalibrated NanoVNA-Saver,? S21 at 0 now,? R+jX? R still not shown, S11 49.85 Ohms standard? way off , Marker 1 an 3 not shown. See

DiS;lord, Flashed number 1, recalibrated in NanoVNA-Saver, still no good, see picture Jos Op 27-4-2020 om 22:15 schreef DiSlord:

What is the approximate cost of the device?

Please not use old calibration, recalibrate after update

Check this 3 variants (all of them work good on my H4, try set threshold to 300MHz) Need recalibrate

In version v0.8.4.4, the level of CH1 rises after 300 MHz.

Hi DiSlord, Loaded your latest version of00000000000000 firmware 0.8.4.4 into my NanoVNA H4 and calibrated in NanoVNA-Saver. Results are not as good as in previous firmware see the pictures attached,

Erik I would like to be a beta tester. I have a RIGOL DSA1030 Spectrum Analyzer that goes from 9 KHz to 3000 MHz, a sweep generator that goes from 1 MHz to 1500 MHz, a RIGOL DS1202Z-E Digital Storage

Long read TLV320AIC3204 datasheet (unfortunately it is poorly written) Revert external freq set 96kHz mode for AIC ADC (this mode have more noise), use internal multiplier as before (i found PLL set