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Re: #firmware NanoVNA SAA-2N firmware not loading #firmware
Hi Tim, I would like to get to any mode, but the device does not respond to any input, button or tap. The screen is white and nothing gets a reaction. bob.c
By Robert Coleman · #28395 ·
Re: amazon.co.uk NanoVNA with 303 chip #buying #nanovna-h4
Yes it is listed under Platform after you enter Config-Version. What I don't know if that is the actual chip on the board or what the developer of the firmware just entered as default text for that
By Roger Need · #28394 ·
Re: amazon.co.uk NanoVNA with 303 chip #buying #nanovna-h4
Just out of curiosity, is the processor type listed on a display rather than opening up the unit and looking at the chip? [email protected]> wrote:
By Fred Moore · #28393 ·
Re: amazon.co.uk NanoVNA with 303 chip #buying #nanovna-h4
According to Hugen (manufacturer of -H4) the latest firmware can run on a STM32F302CCT6. /g/nanovna-users/message/24748 Comparison chart >>
By Roger Need · #28392 ·
measuring T equivalent circuit of an antenna
Hello all of you, I was wondering if someone measured the T equivalent circuit of an antenna? So the antenna is seen as having three ports: two going to the two points of say a dipole and the third
By Victor Reijs · #28391 ·
Re: How to make nanoVNA "bulletproof" ?
Sigi, My cupboard yielded exactly 1 suitable box but, in the event, having a bigger format gets away from the "little and fiddly" form of the nano, as well as accommodating the nice R&S flex patch
By Peter Hall, VK6HP/VK6MJM · #28390 ·
Re: How to make nanoVNA "bulletproof" ?
A photo please. Doug -- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus
By Doug <jdkearney@...> · #28389 ·
Re: amazon.co.uk NanoVNA with 303 chip #buying #nanovna-h4
Hi Colin, is your NanoVNA still working okay? I ask because the one i have (bought off ebay a while ago i think) has now got lines all over the screen and is barely readable. Thanks Neil M7SVH
By Neil Higgins - M7SVH · #28388 ·
Re: How to make nanoVNA "bulletproof" ?
Nice job.... But i would bot use pl sockets but n sockets cause with v2 plus4 or saa2n i measure also on 13cm... Even at 70cm the n socket is better as pl... Your case is so big it should be easy to
By Siegfried Jackstien · #28387 ·
Re: How to make nanoVNA "bulletproof" ?
Add sma to n adaptors...can or better should be with flange (others with big nut may work also) ... Screw flange on a sheet metal angled 90 degrees to form end and base plate... And then use thicker
By Siegfried Jackstien · #28386 ·
Re: How to make nanoVNA "bulletproof" ?
Anne, I realize this is a bit different to the approach you're thinking about but maybe it's of some interest. I "re-packaged" my nanoVNA-F to address some of the issues you mention, and to provide
By Peter Hall, VK6HP/VK6MJM · #28385 ·
Re: How to make nanoVNA "bulletproof" ?
Excellent idea - combine "rotator plate" ( for stability ) with superglue and Velcro ! I actually was not looking to buy those tiny screws to permanently mount the device onto the plate ... Vaclav
By Anne Ranch <anneranch2442@...> · #28383 ·
Re: How to make nanoVNA "bulletproof" ?
I cut a piece of 1/4 inch plexiglass about 9 inches x 6 put Velcro on the nanovna and cables . It keeps the cables from damaging the connectors. De K8HTB
By K8HTB · #28382 ·
Re: How to make nanoVNA "bulletproof" ?
I have been using VNAs at work since the '80s. Professional "box" VNAs have extensive internal power supply and data line decoupling/shielding and are designed as a system with their
By Donald S Brant Jr · #28381 ·
Re: How to make nanoVNA "bulletproof" ?
That would depend on the test setup.? Most people, when measuring an antenna, use chokes and/or baluns at various points. In a anechoic chamber situation, like when doing a near field scan (which
By Jim Lux · #28380 ·
Re: "SAVE" stores what ? #manuals
In latest fw v 1.2 there is an option to Save Calibration and to Save Configuration. Moreover, the Calibration (within a frequency range) could be saved into a "Slot" (you have 7 slots for
By igor-m · #28379 ·
Re: Nanovnasaver plots
Sorry I thought I had given the link, here it is: https://owenduffy.net/blog/?p=20343 Op di 7 jun. 2022 om 18:31 schreef Roger Need via groups.io <sailtamarack= [email protected]>:
By Victor Reijs · #28378 ·
Re: How to make nanoVNA "bulletproof" ?
For the professional VNA analysers, Do they put atorroid chokes on those? I was wondering. Martin N6QlH wrote:
By Martin Glazer · #28377 ·
Re: "SAVE" stores what ? #manuals
CONFIG->SAVE Save device settings from config (like touch calibration, threshold, vbat_offset, colors) CALIBRATION->SAVE X Save calibration and trace/marker settings After calibration if use DONE,
By DiSlord · #28376 ·
Re: "SAVE" stores what ? #manuals
Good riddance...
By josephlevy · #28375 ·