Hi All

Andreas Spies has this morning released a video about the 3GHz NanovNA'a
more specific the Tindie V2_2 and the Hugen SAA2_2N

Andreas has a special skill to produce very good YouTube video's and
efficient communicate the essentials to know in a simple and logical manner.

I am sure this video will boost the interest for having such a marvelous VNA


https://www.youtube.com/watch?v=_pjcEKQY_Tk
<https://www.youtube.com/watch?v=_pjcEKQY_Tk&feature=youtu.be>
&feature=youtu.be

Kind regards

Kurt

hi kurt

superb video from "the guy with the swiss accent" ... grin

good overview what a vna does and how ... and also a rough explanation
what that smith chart is and what a coil or cap does rf wise in the
smith chart ... cause a picture (or video in this case) tells a thousand
words it is a superb starting point for all vna newcomers ... be it with
the older nano or with the v2 (and all of both clones etc.)

sadly he does not really tell about the different v2 versions available
and that the main difference between the two (nano and v2)  is the
complete new clock design (much higher dynamc range as when using
harmonics) ... and at best tell that you can upgrade a v2 to a v2 plus
... and that the plus4 is not a "plus with a bigger screen" but is a
complete redesign (better bridge, lower noise etc) with another step
better as the v2plus

you can upgrade a "normal" v2 to a v2plus ... or an saa2n (v2 with 4
inch and n adaptors) to an "saa2n plus" (v2plus with 4 inch)

but that is not the same as the new developed v2plus4

so we have ... the nano with all screen sizes and with or without case

the v2 (different lcd, case, connectors available)

v2 plus (any v2 can be upgraded to the plus but needs special bootloader)

and v2plus 4 (brand new design with better results as a v2plus)

puzzelt?? :-)

greetz sigi dg9bfc

Am 01.11.2020 um 11:36 schrieb Kurt Poulsen:

>
> Hi All
>
> Andreas Spies has this morning released a video about the 3GHz
> NanovNA’a more specific the Tindie V2_2 and the Hugen SAA2_2N
>
> Andreas has a special skill to produce very good YouTube video’s and
> efficient communicate the essentials to know in a simple and logical
> manner.
>
> I am sure this video will boost the interest for having such a
> marvelous VNA
>
> https://www.youtube.com/watch?v=_pjcEKQY_Tk&feature=youtu.be
>
> Kind regards
>
> Kurt
>
>

hi kurt

superb video from "the guy with the swiss accent" ... grin

good overview what a vna does and how ... and also a rough explanation
what that smith chart is and what a coil or cap does rf wise in the
smith chart ... cause a picture (or video in this case) tells a thousand
words it is a superb starting point for all vna newcomers ... be it with
the older nano or with the v2 (and all of both clones etc.)

sadly he does not really tell about the different v2 versions available
and that the main difference between the two (nano and v2)  is the
complete new clock design (much higher dynamc range as when using
harmonics) ... and at best tell that you can upgrade a v2 to a v2 plus
... and that the plus4 is not a "plus with a bigger screen" but is a
complete redesign (better bridge, lower noise etc) with another step
better as the v2plus

you can upgrade a "normal" v2 to a v2plus ... or an saa2n (v2 with 4
inch and n adaptors) to an "saa2n plus" (v2plus with 4 inch)

but that is not the same as the new developed v2plus4

so we have ... the nano with all screen sizes and with or without case

the v2 (different lcd, case, connectors available)

v2 plus (any v2 can be upgraded to the plus but needs special bootloader)

and v2plus 4 (brand new design with better results as a v2plus)

puzzelt?? :-)

greetz sigi dg9bfc

Am 01.11.2020 um 11:36 schrieb Kurt Poulsen:

>
> Hi All
>
> Andreas Spies has this morning released a video about the 3GHz
> NanovNA’a more specific the Tindie V2_2 and the Hugen SAA2_2N
>
> Andreas has a special skill to produce very good YouTube video’s and
> efficient communicate the essentials to know in a simple and logical
> manner.
>
> I am sure this video will boost the interest for having such a
> marvelous VNA
>
> https://www.youtube.com/watch?v=_pjcEKQY_Tk&feature=youtu.be
>
> Kind regards
>
> Kurt
>
>

Dear Seigfried,

Thankyou for the summary of current vna devices and V2 in particular.

So that means the boxed red V2 from Blackmagic is a v2plus device. And Gabriel has publicaly stated that that software is the one for V2plus devices with 4” screens.

Also that means there might be fewer clones. But if several programmers have already written their own upgrade bootloaders to get past the “serial number check”, then the cloners will have little trouble doing the same or just using these bootloaders made available through G(r)ithub.

Oh well, I have invested in a st programming dongle so I can upgrade all my V2 devices. At least it means there will be software improvements and support for a bit longer, since Hugen has it seems, moved on to other endeavours.

Steve L

Dear Seigfried,

Thankyou for the summary of current vna devices and V2 in particular.

So that means the boxed red V2 from Blackmagic is a v2plus device. And Gabriel has publicaly stated that that software is the one for V2plus devices with 4” screens.

Also that means there might be fewer clones. But if several programmers have already written their own upgrade bootloaders to get past the “serial number check”, then the cloners will have little trouble doing the same or just using these bootloaders made available through G(r)ithub.

Oh well, I have invested in a st programming dongle so I can upgrade all my V2 devices. At least it means there will be software improvements and support for a bit longer, since Hugen has it seems, moved on to other endeavours.

Steve L

There is no "serial number check" anywhere, that's not how it works. The
SN is used for warranty service purposes only. V2 plus has many more
hardware changes than the published "3 capacitors/resistors" upgrade,
which doesn't completely upgrade your device to v2plus but allows you to
get the sweep speedup. V2Plus firmware is still open source and you can
read the code to see how the sweep speed is increased. The noise
improvements (S21 noise floor) is due to other hardware changes though.

V2Plus4 is completely different hardware and so its firmware can't run
on any earlier V2 versions.

There is no "serial number check" anywhere, that's not how it works. The
SN is used for warranty service purposes only. V2 plus has many more
hardware changes than the published "3 capacitors/resistors" upgrade,
which doesn't completely upgrade your device to v2plus but allows you to
get the sweep speedup. V2Plus firmware is still open source and you can
read the code to see how the sweep speed is increased. The noise
improvements (S21 noise floor) is due to other hardware changes though.

V2Plus4 is completely different hardware and so its firmware can't run
on any earlier V2 versions.