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Re: TinySA introduction video
On Wed, Jun 24, 2020 at 08:54 AM, m0wid wrote:
...Fantastic development effort by Erik in a short time period.
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Dave,
? ?It seems like a short period of time but Erik has been perfecting the design for months now starting with your homebrew version.? Combining the original design with features from the NanoVNA and additional generator operating modes makes the tinySA feel tiny only in size.
?I own a HP8558 spectrum analyzer which covers the same range as the tinySA and also covers more than half of my workbench.? The tinySA gives me far more capability and the HP8558 is a pain to keep working.? Like you I value my bench space, so because of the tinySA my HP8558 is being donated to the local technical high school.
?Since you are familiar with Erik's past work you know how meticulous he is.? I've worked with a lot of engineers in my career in EMC but rarely any that combine Eriks hardware, software and firmware skills.?
- Herb
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Re: TinySA introduction video
I like the small size of the NanoVNA and also this TinySA.? Small means easy to fit on my cramped bench along with all the other paraphenalia and whatever project is on the go at the time.? Having a built in battery makes it even more convenient.? Small size also means lower price which I think is important.
If I want a bigger display with more points etc then I hook up the NanoVNA to a PC.? Don't have a TinySA yet (I do have a homebrew version of Erik's original design using different processor with WiFi and webserver to PC, smartphone or tablet for bigger displays, but so far fewer features) but will sure get one if the price is right.
Fantastic development effort by Erik in a short time period.
Dave M0WID
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Re: TinySA introduction video
Hi Herb,
I already thought the screen looked very usable. I have used a big, mil-spec SA and I have been missing having one. I will be watching for the sales announcement here and order right away. I am excited about it.
The nanoVNA has exceeded my expectations. I am sure the tinySA will not disappoint.
73,
Bill KU8H
bark less - wag more
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Bill,
? ?hugen's philosophy is to give students, ham operators and enthusiast access to test equipment at a sub $100 USD price.? I believe he is targeting the tinySA at a price point closer to $50 USD than $100USD. At that price you can use the 2.8" tinySA and explore its capabilities until the 4" version is released.? I doubt you would have any problems selling or gifting the 2.8" version.
? ?Additionally, take a look at the following screen shot for the rf generator mode of the tinySA.? It is more legible than the fonts used on the NanoVNA-H4 and I would want to keep the smaller tinySA just to use as a companion rf generator for the 4" tinySA.? The two together will form a nice 100k-350M tracking generator set-up. Frequency sweep, level sweep, AM and FM modulation schemes in the LOW OUTPUT mode particularly make the tinySA useful.? I suspect some users will purchase the tinySA just for its signal generator capabilities.
Erik has really packed a ton of features into the tinySA.? His attention to detail and quality along with his partner ship with a respected supplier like hugen are enough to make me want to add the tinySA to my toolkit.
- Herb
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Re: TinySA introduction video
On Wed, Jun 24, 2020 at 05:40 AM, Bill Cromwell wrote:
Hi,
I'm older and use glasses too. I bought the nanoVNA with a four inch
screen just to make life easier. I am sure I could manage with the
smaller screen. In addition to my prescription glasses I have several
magnifiers here already. I am going to want the tinySA and won't wait
for the four inch screen. Depending on price I might buy one with a
bigger screen when/if it becomes available. I will use magnifiers as needed.
73,
Bill KU8H
=================================================== Bill, ? ?hugen's philosophy is to give students, ham operators and enthusiast access to test equipment at a sub $100 USD price.? I believe he is targeting the tinySA at a price point closer to $50 USD than $100USD.? At that price you can use the 2.8" tinySA and explore its capabilities until the 4" version is released.? I doubt you would have any problems selling or gifting the 2.8" version.? ? ?Additionally, take a look at the following screen shot for the rf generator mode of the tinySA.? It is more legible than the fonts used on the NanoVNA-H4 and I would want to keep the smaller tinySA just to use as a companion rf generator for the 4" tinySA.? The two together will form a nice 100k-350M tracking generator set-up. Frequency sweep, level sweep, AM and FM modulation schemes in the LOW OUTPUT mode particularly make the tinySA useful.? I suspect some users will purchase the tinySA just for its signal generator capabilities.  Erik has really packed a ton of features into the tinySA.? His attention to detail and quality along with his partner ship with a respected supplier like hugen are enough to make me want to add the tinySA to my toolkit. - Herb
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Re: TinySA introduction video
Hi,
I'm older and use glasses too. I bought the nanoVNA with a four inch screen just to make life easier. I am sure I could manage with the smaller screen. In addition to my prescription glasses I have several magnifiers here already. I am going to want the tinySA and won't wait for the four inch screen. Depending on price I might buy one with a bigger screen when/if it becomes available. I will use magnifiers as needed.
73,
Bill KU8H
bark less - wag more
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On 6/24/20 8:19 AM, hwalker wrote: On Tue, Jun 23, 2020 at 11:11 PM, Terry VK5TM wrote:
Even with reading glasses I find the screen of the NanoVna too small, so it's not getting used at the moment until I can sort a better solution.
--
Terry,
? ?The display of the tinySA isn't as congested as the NanoVNA so its much easier to read if you wear glasses.? I would compare its readability to the NanoVNA using the AA firmware.? If only one marker is used, the marker information is displayed in a font size similar to the H4.? It has a companion PC application, tinySA.exe, but I think most users will only need it for capturing screenshots.
- Herb
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Re: TinySA introduction video
On Tue, Jun 23, 2020 at 11:11 PM, Terry VK5TM wrote: Even with reading glasses I find the screen of the NanoVna too small, so it's not getting used at the moment until I can sort a better solution. -- Terry, ? ?The display of the tinySA isn't as congested as the NanoVNA so its much easier to read if you wear glasses.? I would compare its readability to the NanoVNA using the AA firmware.? If only one marker is used, the marker information is displayed in a font size similar to the H4.? It has a companion PC application, tinySA.exe, but I think most users will only need it for capturing screenshots.  - Herb
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Re: TinySA introduction video
There is already, 
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Re: TinySA introduction video
I almost always use my nanoVNA in the shack and connected to the
PC with the nanoVNA saver program, much more convenient operation
not only by the screen size.
I suppose that there will be a similar companion program for the
TinySA.
73 de Ignacio EB4APL
On Wed, Jun 24, 2020 at 08:11 AM, Terry VK5TM wrote:
Even with reading glasses I find the screen of the
NanoVna too small
It is just a matter of good reading glasses. Also in my age of 72
it is possible
to read that 2.8 inch display of the nanoVNA.
I think the price is important. The lower the cost, how more toys
you can buy ;-)
73, Rudi DL5FA
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Re: TinySA introduction video
On Wed, Jun 24, 2020 at 08:11 AM, Terry VK5TM wrote:
Even with reading glasses I find the screen of the NanoVna too small
It is just a matter of good reading glasses. Also in my age of 72 it is possible to read that 2.8 inch display of the nanoVNA. I think the price is important. The lower the cost, how more toys you can buy ;-) 73, Rudi DL5FA
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Re: TinySA introduction video
You will have to wait for the 4" version.
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Re: TinySA introduction video
Even with reading glasses I find the screen of the NanoVna too small, so it's not getting used at the moment until I can sort a better solution.
--
Terry VK5TM
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Re: TinySA introduction video
Dear Dick,
I am assuming that people with reduced eyesight already have reading glasses lying around everywhere, at least I do.
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Re: TinySA introduction video
Does it come with a magnifying glass ???
73, Dick, W1KSZ
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I want one !!! >:o
El 23/06/2020 a las 17:28, Erik Kaashoek 别蝉肠谤颈产颈ó:
As the tinySA FW and HW are nearing completion I made a short introduction video that is available
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Re: TinySA introduction video
I want one !!! >:o
El 23/06/2020 a las 17:28, Erik
Kaashoek 别蝉肠谤颈产颈ó:
As the tinySA FW and HW are nearing completion I made a short
introduction video that is available
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TinySA introduction video
As the tinySA FW and HW are nearing completion I made a short introduction video that is available
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Level sweep function added
The testers have been asking for some extra functionality and it was still possible to fit it into the available space. Here you see two functions in one picture. One tinySA is used as signal generator and does a power sweep from -10 to -60dBm in a sweep time set to 6 seconds. Level sweep can ramp up or ramp down. The second tinySA is set to zero span and a trigger level of -12dBm and also with a saweep time set to 6 seconds. There is still a bit of switching noise in the ramp. 
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Re: Hardware availability?
Thank you and good luck :) A sábado, 30/05/2020, 09:14, Erik Kaashoek < erik@...> escreveu:
A small status update. Progress is good. The performance measurements by the testers is confirming the specification and the user interface has been updated based on user feedback.
Preparations for a small first pilot run to confirm manufacturability are starting.
We will keep you informed.
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Re: Hardware availability?
A small status update. Progress is good. The performance measurements by the testers is confirming the specification and the user interface has been updated based on user feedback.
Preparations for a small first pilot run to confirm manufacturability are starting.
We will keep you informed.
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Measuring the 1dB compression point is a lot of work as you manually have to step through many signal levels to find the level where the detected signal is 1dB below the expected level. Using the internal step attenuator and the LINEARITY measurement in the MEASURE menu most of the manual step are automated. The green line in the picture below shows 9 measurements shown for each 1 dB step starting at 29dB attenuation. Using an external signal generator at any of the supported low input frequencies at a level above the expected compression point level (such as?+10dBm) will allow a quick measurement of the linearity. As the green line shows little disturbances below where the compression starts it is safe to conclude the internal step attenuator is very linear. 
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TinySA resolution filters
Next to the performance of the first LO and the first mixer, the performance of the various resolution filters does have a huge impact on the performance of a spectrum analyzer. To provide some understanding of what the tinySA resolution filters can (not) do I added a page to the wiki:
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Dick
CT2FZI
