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Re: Possible easier menu for radio amateurs?
You can use unlimited calibration slots if save/load on SD card.
By DiSlord · #39045 ·
Re: Possible easier menu for radio amateurs?
Hi, all. I'm HIRO, JJ1FXF and I just joined this group today cause I'm also looking for some simple menu firmware of my NanoVNA-H. Since the 2.8" screen is becoming too small for my age, so I will
By HIRO, JJ1FXF · #39044 ·
Re: Using the H4 as a Signal generator with
You can set the frequency to output on one frequency but you can¡¯t set the level. It is much higher than -73 dBm so you need attenuators and a way to measure that level so you can adjust the
By Roger Need · #39043 ·
Re: Using the H4 as a Signal generator with
The Tiny SA Ultra has this ability, to generate a signal on a precise frequency, at a very precise, calibrated level. Use that. -- Rich [email protected]> wrote:
By Richard Spohn · #39042 ·
Using the H4 as a Signal generator with
Hello I am looking to use my H4 to generate a signal on HF at -73db and -70db to do some calibrations after a firmware update on a my receiver. Some Nanovna have a tab called "Signal Generator" but
By M0KCB · #39041 ·
Re: Unable to upgrade firmware to 1.2.27
hmm .. i own a v2 (saa2n) and a v2plus4 and have made over a dozen fw upgrades on each but but NEVER used a programmer!! connect to usb, switch on with button pressed and voila its in upload mode ...
By Siegfried Jackstien · #39040 ·
Re: Tuner Measurement
Many YouTube vids on the Smith Chart and tutorial PDFs are available also. Have a look. A few hours and you'll know how to use the chart...
By Matthew Rapaport · #39039 ·
Re: Tuner Measurement
Great answer... Roger
By Roger Need · #39038 ·
Re: Tuner Measurement
Maybe I misinterpreted his intention. I thought he was going to mount the (indoor tuner with protection) at the antenna base and manually adjust recorded settings as he desired. Sorry about my
By W0LEV · #39037 ·
Re: Tuner Measurement
Since the OP wanted to make antenna matching circuits that are remotely switched, he should measure the antenna impedance at the desired frequencies with the nanovna then synthesize matching networks
By Gary W9TD · #39036 ·
Re: Tuner Measurement
OK...Easy Path. 1) For one, the NANOVNA can not "read" tuner settings. You will have to record those yourself. 2) The NANOVNA should be connected to the "rig" side of the tuner with a SHORT piece of
By W0LEV · #39035 ·
Re: Tuner Measurement
OK...Easy Path. 1) For one, the NANOVNA can not "read" tuner settings. You will have to record those yourself. 2) The NANOVNA should be connected to the "rig" side of the tuner with a SHORT piece of
By W0LEV · #39034 ·
Re: Tuner Measurement
This is an interesting problem - I was doing the same, to characterize an LDG autotuner (what *are* the actual L and C steps). There's two problems you've identified here: The first is "what is the
By Jim Lux · #39033 ·
Re: Tuner Measurement
This is an interesting problem - I was doing the same, to characterize an LDG autotuner (what *are* the actual L and C steps). There's two problems you've identified here: The first is "what is the
By Jim Lux · #39032 ·
Tuner Measurement
I am thinking to build discrete circuits for a specific non-resonant antenna to operate on HF bands without a remote tuner. I managed to snag one of the last MFJ-948F Versa Tuner II left in stock.
By Paul Wolf KY4XJ VA · #39031 ·
Re: TDR function?
Thanks! As it turned out, I have a RigExpert AA-600, and it was very easy to use as a TDR. Much easier than the NanoVNA. Somewhere I have a real TDR, a TEK 1502. But it's in storage and is so buried I
By Zack Widup · #39030 ·
Re: TDR function?
W2AEW has a very helpful video on this subject, as well as many very help videos regarding the nanoVNA & ham radio in general: https://www.youtube.com/watch?v=9thbTC8-JtA&t=608s Thanks, Robin Midgett
By Robin Midgett · #39029 ·
Re: Unable to upgrade firmware to 1.2.27
Hi Stan, Problem solved, your advice was accurate and effective. 1.2.40 uploaded without any issue using bin file and STM Cube Programmer. Many thanks. Best regards, Georges F6DFZ
By Georges Ringotte · #39028 ·
Re: Unable to upgrade firmware to 1.2.27
Don't worry about the MS vs SI designation. Both are handled by the firmware. There is a setting in the 'Expert Settings' part of the menu structure to select the MS or SI part. The firmware files
By Stan Dye · #39027 ·
Re: Unable to upgrade firmware to 1.2.27
Hi Stan, thanks for your answer. I did get the working 1.2.20, and the not working 1.2.27 from this page : https://github.com/hugen79/NanoVNA-H/releases My NanoVNA-H4 needs a SI file as there is no MS
By Georges Ringotte · #39026 ·