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Having a small pocket size VNA is a neat thing, but speaking for myself, I'd much rather have a tablet size instrument, say 7 to 10" preferably in a metal box such as the Hammond 1590 series. Thicker wouldn't bother me, and something with Type-N connectors. Hopefully that will come about in the near future. Of course it would cost more, but it would be well worth it to me.

Again, that's my personal wish.

Burt, K6OQK

At 09:21 AM 8/29/2019, you wrote:

Hugen has commented there is a 3.2" display that is compatible with the current device.
Anything else would need new display drivers in the F/W

On Thu, Aug 29, 2019 at 12:17 PM, JIM Rogers wrote:

Has anyone played with finding a larger display for the nano-vna.
Jim

Burt I. Weiner Associates
Broadcast Technical Services
Glendale, California U.S.A.
biwa@...
K6OQK



--
Burt I. Weiner Associates
Broadcast Technical Services
Glendale, CA? U.S.A.
K6OQK

I use a Bird SiteHawk Sk4000 antenna analyzer at work and had to repair it once.

When I opened it up, I discovered that Bird engineers used a slightly modified Samsung 6" cellphone for the display and processor brains of the unit.
All of the RF guts were inside a solid shielded module.
The RF module was connected to the Samsung through its USB (OTG) port.

So - something similar could be designed to take advantage of all the Android (and possibly iOS) cellphones and tablets with multi-core processors and HD displays.

As mentioned earlier in the forum, maybe a headless version of the nanoVNA could be designed that goes up to 2.4GHz or higher that has a USB interface only.

For anyone interested, the SK4000 apk can be downloaded from the BirdRF website to play with.


Regards,
Larry

I would like it to be a self contained instrument, not one that depends on a computer or phone for the screen. To be able to interface a computer or tablet to it would be nice, but I don't want to have a bunch of things hung together just for the VNA itself. For me, this is a tool to be used in the field, not necessarily a bench only instrument.

Burt, K6OQK

Having a small pocket size VNA is a neat thing, but speaking for myself, I'd much rather have a tablet size instrument, say 7 to 10" preferably in a metal box such as the Hammond 1590 series. Thicker wouldn't bother me, and something with Type-N connectors. Hopefully that will come about in the near future. Of course it would cost more, but it would be well worth it to me.

Again, that's my personal wish.

Burt, K6OQK

At 09:59 AM 8/29/2019, you wrote:

I use a Bird SiteHawk Sk4000 antenna analyzer at work and had to repair it once.

When I opened it up, I discovered that Bird engineers used a slightly modified Samsung 6" cellphone for the display and processor brains of the unit.
All of the RF guts were inside a solid shielded module.
The RF module was connected to the Samsung through its USB (OTG) port.

So - something similar could be designed to take advantage of all the Android (and possibly iOS) cellphones and tablets with multi-core processors and HD displays.

As mentioned earlier in the forum, maybe a headless version of the nanoVNA could be designed that goes up to 2.4GHz or higher that has a USB interface only.

For anyone interested, the SK4000 apk can be downloaded from the BirdRF website to play with.


Regards,
Larry

Burt I. Weiner Associates
Broadcast Technical Services
Glendale, California U.S.A.
biwa@...
K6OQK



--
Burt I. Weiner Associates
Broadcast Technical Services
Glendale, CA? U.S.A.
K6OQK

Burt,
I've attached a photo of the Sk4000. It is a self-contained test device with an N at one end.
Per your request for an all-in-one device, it's still doable in the same manner as the SK4000.

With the availability of 3D printers now, it is easy to create a housing to accomplish what you want.
The advantage of having an Android or iOS device as the brains, means you get to use its computing capabilities for other RF/Tech/Design applications.

73
Larry

A package like that could be nice, but at least a 2 port contraption.

Burt, K6OQK

At 10:51 AM 8/29/2019, you wrote:

Burt,
I've attached a photo of the Sk4000. It is a self-contained test device with an N at one end.
Per your request for an all-in-one device, it's still doable in the same manner as the SK4000.

With the availability of 3D printers now, it is easy to create a housing to accomplish what you want.
The advantage of having an Android or iOS device as the brains, means you get to use its computing capabilities for other RF/Tech/Design applications.

73
Larry

Burt I. Weiner Associates
Broadcast Technical Services
Glendale, California U.S.A.
biwa@...
K6OQK



--
Burt I. Weiner Associates
Broadcast Technical Services
Glendale, CA? U.S.A.
K6OQK

If you can get the Webusb app to work with an inexpensive Android tablet or Raspberry Pi, it should be fairly easy to mount it and the NanoVNA in the same package.
You could easily add BNC ot N adapters if you want to change from the SNA connectors. Should be room for adding larger batteries for longer operation. Can also add other apps to work with the data collected.
--
DuWayne? KV4QB

On Aug 29, 2019, at 18:59, Larry Rothman <ac293@...> wrote:

When I opened it up, I discovered that Bird engineers used a slightly modified Samsung 6" cellphone for the display and processor brains of the unit.

That’s a bit of a losing proposition for a product that wants to stay on the market for a few years.
(Not just because you no longer can get the specific phone, but also because Android is going to move fast and break things.)

Grü?e, Carsten

On Fri, Aug 30, 2019 at 12:53 AM, Carsten Bormann wrote:

That’s a bit of a losing proposition for a product that wants to stay on the
market for a few years.
(Not just because you no longer can get the specific phone, but also because
Android is going to move fast and break things.)

Grü?e, Carsten

Not really - for a dedicated piece of test equipment, the intent of the design is fine.
Nowhere in in manual is a guarantee that the device will run end-user apps.
Most end-users will use it with the built-in analyser app and nothing else.
Of course - Bird has come out with newer versions of the unit.

I own two Motorola R2012 analysers that came out in the late 70's. They've never been updated but work great for what they were designed to do.
I'm toying with the idea of creating an LCD replacement for the (REALLY) old CRT and I'm surprised no one has come out with one yet (probably because there are very few of us left that even know what a CRT is?) ;-)

@carsten

it's not a "phone" any more, for this purpose it is a single board computer. the Bird engineers create the firmware to load onto it, therefore the Android update schedule is a non sequitur. also, the Bird engineers can continue to purchase SBC output from the same factory production line even after Samsung makes no new orders.

in other words, re-evaluate your statements, please.

Auf wieder luege und 2F (base 19)