开云体育

If you can flash and talk to the unit with the current driver's, don't change anything.? On Tue., 20 Jul. 2021 at 6:26 p.m., Roger<ve7vv@...> wrote: Hello, I have searched the site and did not

William, Try: https://content.instructables.com/ORIG/FQ1/CUVZ/HXA9PUVQ/FQ1CUVZHXA9PUVQ.pdf Don, K5DW

I recently built a 340 MHz dipole for test purposes. My NanoVNA-H4 was calibrated initially at the transmitter end of the coax cable. The first attachment shows the response of the antenna with

Hello, I have searched the site and did not find a relevant message for my question. I did connect the nanovna usb cable to the Win7 laptop before installing the new driver - which may have been a

Anne, You sent us a pointer to the local copy of your manual for some device, can you either send a pointer to where you got it online, or send the actual PDF file, assuming it's not too big? 73,

I HIGHLY recommend that you do NOT put the amp at the rec port! All the ambient noise will be amplified as well.? ?Dynamic range severely limited! Any strong signals can now have enough power to

It still froze with the bezel removed. I will try some older firmware.

DiSlord, I'll check that. Good opportunity to remove the protective film from the display.

Larry, Yes I did have verify checked.

Jack, when you flashed the unit, did you select the verify option? If not, try reflashing again with verify checked.

"interesting " tidbit -for more technically oriented NITPICKERS. . HC_05 / 06 is JUST the module name - the ACTUAL hardware is something else.

Yet another nitpick: Gain includes losses in the AUT. Directivity does not include losses. Of course, the methods described here include the losses, so the term "gain" is properly applied. Dave -

The only way to hang the device is to press the screen with the body. Try removing the front cover.

Yes, pressing the center of the lever causes it to freeze. Moving the lever from side to side also causes a freeze. The original FW (ver 0.2.3-2-g8ac9166 18 Oct 2019) didn't have this problem. Could

I didn't quite understand the essence of the problem. If you press the center of the lever, does the device freeze? I am unable to reproduce this problem, both of my devices are working fine. Perhaps

I decided to do a long overdue FW update of my NanoVNA-H to the latest version 64 (previous version was 0.2.3-2-g8ac9166 (18 Oct 2019)). After clearing config, the update went smoothly without

Thank you Willie. I followed your suggestion, removed the front cover and then the film peeled off easily using the little tab. This provided a good opportunity to tighten all the brass spacer nuts as

Hi Max, That I could use the serial connection to config the usart escaped my mind indeed. That the HC05 possibly fails is an other option. Greetz Jos Op 20-7-2021 om 15:22 schreef Max via groups.io:

Kent: Since you are making up for system losses, you could place the amplifier at the receive port as well, or anywhere in the system that it is convenient. As long as you calibrate with the reference

Passive antennas have directivity not really gain but the term 'gain' is often used to express the amount of energy directed in a given direction compared to some reference antenna like a dipole.. An