开云体育

With out a doubt this is the easiest flash upgrade I have made in a long
time. My thanks to all the help here on the list and the usefull guides.
My thanks to all who help.
It does make a difference.
I seem to loose several IQ points once I hit a snag during new procedures.
There may be a correlation between my falling IQ and the perception of the
task. Once done my IQ seems to recover. ( Yea, right).

Nels Nelsen
NE7LS

Hi Bill,
Have you looked over the user guides in the files section as well as reviewied the Wiki?
You're NOT using a BIN file to flash the nano - you need to use the DFU file.
Have a look at my edit of the original user guide. Everything is explained on on page 28 (My Jan 15 edit), half way down the page.
Just verify that your computer (I assume it's Windows?) can detect when the Nano is in DFU mode.
It's actually very easy to flash the device and there is no chance of bricking it as the flash routines are in permanent memory.
I hope this helps,
Larry

This is the hardest to flash device I have ever owned. I am about to toss this in the trash and buy something that works. I cannot find a bin file for the AA flash and I am just about tired of messing with it.

Sometimes something cheap ends up costing a lot, this is a good example.

Does anyone out there have a AA bin? Does one even exist?

He could also subscribe to the threads he's interested in and then create email filters to move anything from the Nanovna forum into a separate mail folder for future reading.
That way, his main email inbox is kept 'clean'.

On Fri, Feb 14, 2020 at 09:31 AM, Leif M wrote:
Is it possible to see if there are new unread messages in a discussion. I think something like different colo(u)r or such. Especially those discussions I have posted in.
==========================================================================

Leif,
The only feature I've found is if a topic/discussion has more than one message there is a button at the bottom labeled <View All Messages In Topic>
that will list all the topic messages in chronological order so you can read only messages pertaining to that topic.

You can use the search button at the top of the page to search on "Leif M" and you will only see discussions that you have posted in, also listed in chronological order.

Neither of the two listings only show unread messages.

- Herb

On Fri, Feb 14, 2020 at 08:56 AM, Oristo wrote:

Does this apply only to Hugen firmwares?
==============================================

Hugen is the only firmware developer that has produced a -AA firmware. I never installed it before because of the trade-off in losing two traces for the larger font-size. I don't mind giving up a save location, so now I actually prefer the latest -AA large font version on my 2.8" NanoVNA-H. My only peeve is that the larger font sometimes obscures some screen elements.

- Herb

Is it possible to see if there are new unread messages in a discussion. I think something like different colo(u)r or such. Especially those discussions I have posted in.

At what version did it change from 2 trace to 4 save?

Looks like NanoVNA-H_20191125_AA was the first with 4 trace.
/g/nanovna-users/attachment/9831/0/NanoVNA_firmwares_hugen_20200118.pdf

I just had a quick look at Hugen's repo:

NanoVNA-H version compiled on November 25, 2019
@hugen79 hugen79 released this on Nov 25, 2019 · 6 commits to master since this release
1.The absolute value of the linear format is displayed;
2.Si5351 default 8mA output;
3.The AA version shows 4 traces. <<<<<<<<<<<<<<

So, there you have it.

Both versions can do everything
- the ONLY difference is the font size and traces
(bigger font size in mamory meant removing 2 traces)

==========================================

That info needs to be updated.
I am using the current -AA version and it has the larger font plus four traces.
The only difference that I see between versions is the -AA version only has four save locations.

Does this apply only to Hugen firmwares?
At what version did it change from 2 trace to 4 save?

OK - that's Oristo's territory (and webpage)? ;-)

On Fri, Feb 14, 2020 at 08:19 AM, Larry Rothman wrote:

Both versions can do everything - the ONLY difference is the font size and traces (bigger font size in mamory meant removing 2 traces)
Check the forum Wiki - all the info is there.
==========================================

Larry,
That info needs to be updated. I am using the current -AA version and it has the larger font plus four traces. The only difference that I see between versions is the -AA version only has four save locations.

- Herb

On Fri, Feb 14, 2020 at 08:02 AM, Alberto I2PHD wrote:

Can please somebody describe in simple English terms the differences between the standard firmware and the AA (Antenna Analyzer) firmware ?
What can be done with the AA version that cannot be done with the standard version ?

========================================================================

Alberto,
The firmware is the same except the -AA firmware has a larger font-size (about the same size as used on the 4" NanoVNA-H4), The primary drawback is that in order to achieve the larger font-size only 4 save locations is available instead of five.

Originally, to achieve the same thing and also allow a Chinese character set, only two traces could be displayed which were used on CH0 for s11 measurements. Thus the -AA or Antenna Analyzer label.

- Herb

Both versions can do everything - the ONLY difference is the font size and traces (bigger font size in mamory meant removing 2 traces)
Check the forum Wiki - all the info is there.

On Friday, February 14, 2020, 11:02:43 a.m. GMT-5, Alberto I2PHD <i2phd@...> wrote:

> hugen's official AA releases at all have a CONFIG menu.

If you only want two traces then you will have to turn off the traces for CH1.

------------------------
Can please somebody describe in simple English terms the differences between the standard firmware and the AA (Antenna
Analyzer) firmware ?
What can be done with the AA version that cannot be done with the standard version ?

Thanks

--
/*73 Alberto I2PHD*
<<< >>>/

hugen's official AA releases at all have a CONFIG menu.
If you only want two traces then you will have to turn off the traces for CH1.

------------------------
Can please somebody describe in simple English terms the differences between the standard firmware and the AA (Antenna Analyzer) firmware ?
What can be done with the AA version that cannot be done with the standard version ?

Thanks

--
/*73 Alberto I2PHD*
<<< >>>/

Greatly appreciate the help! That's close enough for me. Installed. I will shut down the two traces when I don't need them. Just happy to finally have a font I can read, and love being able to have some more settings to play with!

On Thu, Feb 13, 2020 at 03:32 PM, <kb0npw@...> wrote:

Have tried about 7 different firmwares now, checked Wiki, searched high and low. Surely there is a firmware for AA, two trace, with large fonts, and the Config menu which allows touch calibration.
=======================================

hugen's official AA releases at all have a CONFIG menu. If you only want two traces then you will have to turn off the traces for CH1.

- Herb

Have tried about 7 different firmwares now, checked Wiki, searched high and low. Surely there is a firmware for AA, two trace, with large fonts, and the Config menu which allows touch calibration.

Clarence - can you provide a link to that specific product?

Hello Kevin,
What I did was just get 2 SMA-M to SO-239 6" RG-316 pigtails, and 3 PL-259 to SMA-F adapters & use the SMA cals that came with the nano. That makes it easy to add any length coax (with PL-259s) between them and calibrate at the end of it all. Also got a couple female barrel connectors (SO-238). Using the SMA load on an adapter is likely better than putting 2 leaded axial resistors in a PL-259.
The adapter, and barrel connector if needed, adds about 1-1/2 inch or so, which is not significant at HF, though may be at VHF; and that extra length can be compensated in the nano. Probably not necessary tho; you'll likely have at least an inch and a half or so between an antenna's SO-239 and the actual feed-point, so setting the calibration plane a bit beyond the end of a feed-line may actually be beneficial.
It's also worth remembering that for SWR tuning purposes, as you approach 1:1 the length differences become insignificant; a matched line with no standing wave has a constant impedance along its length. The phase vector rotates, but it's around a point, not a circle, at 1:1.
Just my 2 cents, FWIW.
--KV5R