¿ªÔÆÌåÓý

ctrl + shift + ? for shortcuts
© 2025 Groups.io

Re: Pro or Con


 

NanoVNA

Set Channel:
DISPLAY, CHANNEL, CH0 REFLECT

Set Trace:
DISPLAY, TRACE, TRACE 0, BACK, BACK, FORMAT, SWR
BACK, TRACE, TRACE 1, BACK, BACK, FORMAT, SMITH

Set Freq Range:
STIMULUS
START, 140M
STOP, 450M

Set Scale:
DISPLAY, SCALE
There are 9 horizontal lines, 0-8
To set each line to represent 1.0 SWR
SCALE/DIV, 1, x1
To set line 1 as 1.0 SWR
REFERENCE POSITION, 1, x1
ELECTRICAL DELAY should be 0, x1

Calibration:
CAL, RESET, CALIBRATE
Attach male to male cable to CH0
Attach female to female adapter at the end of the cable
Connect OPEN standard to the cable and press OPEN
Connect SHORT standard to the cable and press SHORT
Connect the LOAD standard to the cable and press LOAD
Disconnect the cable from CH0 and connect it to CH1 and press ISOLN
Remove the female to female adapter and the LOAD standard
Connect the cable to CH0 and CH1 and press THRU
Press DONE
Press SAVE 0 (0 is the power-on/reset default)


WO4ROB
________________________________
From: [email protected] <[email protected]> on behalf of Larry Rothman <nlroth@...>
Sent: Wednesday, May 13, 2020 12:17:41 PM
To: [email protected] <[email protected]>
Subject: Re: [nanovna-users] Pro or Con

Go into the config screen and enable CH0 INFO
You'll see a screen like this:


Please remember,
1. You always need to calibrate the NanoVNA (ideally for the freq range you want to test) before you use it.2. Never transmit into the NanoVNA - it's not that kind of device.
Please search the forum WIKI and FILES sections for information on how to configure and use a VNA.The firmware I pointed you to provides a simple display that is good for antenna checks.

On Wednesday, May 13, 2020, 3:09:05 p.m. GMT-4, Birdman <ccarrara@...> wrote:

On Wed, May 13, 2020 at 12:32 PM, Larry Rothman wrote:

This has already been done but unfortunately, it hasn't been updated since
last December.
If you have any nanoVNA or NanoVNA-H, you can play with the firmware:

Last release:
I just loaded the big font version you linked, it doesn't seem to have any "simpler functionality", just a bigger font. But I don't see any dumbed down functionality in there.... did I miss something?

--
Regards,
Chris

Join [email protected] to automatically receive all group messages.