Re: Some Questions and Observations tinySA Ultra
There are still many opportunities to improve the FW and the Wiki explaining everything. This will take some time. It will not be possible to demodulate FM, only slope demodulation will sort of work. --
For more info on the tinySA go to https://tinysa.org/wiki/
|
Re: Looking for any update info on larger-screen TinySA
Thanks - I realized after I posted (then deleted, that didn't help things either!) that the "ultra" version had emerged since I last looked into this. I've since placed order with R&L, expect a long ETA, but at least there's a solution in the offing.
|
Re: Looking for any update info on larger-screen TinySA
Eric announced the 4" version, the TinySA Ultra, just a few weeks ago, Dave.
toggle quoted message
Show quoted text
On 28/11/2022 12:16 pm, David Feldman via groups.io wrote: I use my TinySA pretty regularly (just stand-alone, not attached to a PC or other external controller), but don't follow this group regularly.
My (sole) complaint with my TinySA is and has always been the screen - too small!
Is there any prospect of a larger-screen (say, 4" or so) version?
Thanks for any update,
Dave
|
Re: Looking for any update info on larger-screen TinySA
On 28/11/2022 12:16 pm, David Feldman via groups.io wrote: I use my TinySA pretty regularly (just stand-alone, not attached to a PC or other external controller), but don't follow this group regularly.
My (sole) complaint with my TinySA is and has always been the screen - too small!
Is there any prospect of a larger-screen (say, 4" or so) version?
Thanks for any update,
Dave
|
Re: Cal Function on the ULTRA
On Sun, Nov 27, 2022 at 07:40 PM, Mike C. wrote:
Been playing around w/the Ultra and it's great but there are a few shortfalls. When I do a Cal #3 test fails. Where do I find some info to either correct or find info on?
Mike, ? ?I think you mean self test #3.? I believe self test #3 verifies the level of the 30MHz calibration output and should look similar to the following image when the CAL output is connected to RF in.  It will be helpful to Erik in troubleshooting your error if you provide a screen shot like I did above. - From tinySA-App you can issue the command "self test 0 3" to run only selftest #3. - Use the camera icon in tinySA-App to capture the screen shot. If you have trouble capturing the screen shot, just attach a photo showing the self test #3 failure screen. Herb
|
Re: Cal Function on the ULTRA
Hi Mike,
Both of my TinySA Ultra units pass Test #3. ?(There is no adjustment.)
You could try a different cable to feed the Calibrate signal to the SA input, just in case.
¡ª-
Your menu tree image is virtually unreadable as attached. ?Where is your website?
Thanks,
Larry
AC9OX
Thanks,
Larry
AC9OX
|
Cal Function on the ULTRA
Been playing around w/the Ultra and it's great but
there are a few shortfalls. When I do a Cal #3 test fails. Where
do I find some info to either correct or find info on? Included
at my site are 2 files one is the jpg file the other is a pdf of
what you see below. I drew it up today and this is just a first
sketch. Makes it easier to navigate around. Cheers.
Mike C.? Sand Mtn GA
|
Re: Looking for any update info on larger-screen TinySA
Check out the tinySA Ultra, ~ $119.00USD but
you'll probably have to get on a very long waiting list as the
original production is exhausted from what I've read. And yes it
has a 4" screen and I love mine but have an issue with the cal
function.
Cheers,
Mike C. Sand Mtn GA
On 11/27/2022 8:16 PM, David Feldman
via groups.io wrote:
toggle quoted message
Show quoted text
I use my TinySA pretty regularly (just stand-alone, not attached to a PC or other external controller), but don't follow this group regularly.
My (sole) complaint with my TinySA is and has always been the screen - too small!
Is there any prospect of a larger-screen (say, 4" or so) version?
Thanks for any update,
Dave
|
Re: CISPR Resolution Bandwidths and low cost calibrated Antenna
Hello Erik and Group,
Erik, thanks for the info regarding the DSP code.
And thanks to the other posters on this subject. It is good to know
there is an active EMC testing cohort out there.
I guess I need to remember that it is PRE-COMPLIANCE testing and
that the RBW errors are indeed small.
When I was in the industry developing product, we always aimed for a
minimum 6-10dB headroom at the development stage.
That way, we generally managed first pass testing during
manufacturing.
I have been out of the game for many years now but still like to
follow what is happening.
The TinySA and the new Ultra are amazing pieces of kit. Thank you so
much for these great little gems Erik.
73...Bob VK2ZRE
On 27/11/2022 6:01 pm, Erik Kaashoek
wrote:
toggle quoted message
Show quoted text
On Sat, Nov 26, 2022 at 10:13 PM, Bob Ecclestone wrote:
Since RBW is implemented in software, it would be
relatively easy to implement on the the TinySA and/or the ULTRA.
Bob,
The RBW is implemented by the chip manufacturer in embedded DSP
code that can not be modified and there? is only a limited set of
parameters you can modify to steer this code.
I will have a look but I'm afraid it will not be possible to have
exactly the specified RBW.
Even with approximated RBW I know many people are successfully
using the tinySA in EMC pre-compliance as the differences are
small. Try to calculated the difference in dB when measuring a
wide band source
--
For more info on the tinySA go to
|
Some Questions and Observations tinySA Ultra
My tinySA ultra arrived and I've already done some experiments here.
I still miss the external ATT configuration being saved automatically, because if I use an external attenuator permanently, I always have to keep informing that I am using this external attenuator and that is a little frustrating.
Preset does not solve the issue of the external attenuator, because if we use some settings, the attenuator informed simply disappears.
Another detail, but I don't know if it's an error or if it's because of impossibility: when activating any option in TRACE/CALC, we can't visualize the WATTER FALL.
One more observation is: When entering the generator mode and returning to the analyzer, all the analyzer configuration is lost. (This is not a problem, but if it went back to the previous configuration, it would be very interesting.) Also, the generator mode settings would be important if it could remain the previous configuration once we reboot or enter generator mode.
Doubts: What does the Config/Expert/DIRECT MODE and LINEAR AVERAGING option do?
In the future, will there be a way for us to be able to view SDCARD photos directly on it in tinySA? Just like in nanoVNA.?
In the future, will it be possible to demodulate FM via firmware update?
I found that the DISPLAY/SWEEP ACCURACY/FAST function does not change the speed in tinySA4, but in tinySA3 this is extremely noticeable. (I also did a test on tinySA3 and tinySA4 comparing speeds on the same settings, and I didn't notice a speed difference between the two versions.)
But I loved the device, I found it robust and perfect with that big screen and being able to go straight from 0 to 800MHz is simply amazing. Yes, it has ultra mode too. Just cheers.
Thank you for the opportunity to have a good and cheap portable spectrum analyzer.
|
Maybe the Cisco counterfeiters'?true motive was getting the routers in position to access sensitive data - not profit.
Predictably, someone?thought he saw a?chance to make a few bucks.
He underestimated the risk, took it, and got caught - this time.?
The counterfeiters accepted the cost of the project gladly and risked little else.
Might some TinySA's sometimes get connected to computers with access to sensitive data?
So the consequences of buying a clone can go well beyond feeling guilty.
|
Re: FM Modulation Frequency
OK, missed your next message!!
|
Re: FM Modulation Frequency
OK for AM; for 100% mod you have to set the output to less than -19dbm. Thank you for that.
So the FM query remains.......
|
Re: FM Modulation Frequency
On Sun, Nov 27, 2022 at 07:13 AM, NigelP wrote:
The spec says it should go to 6KHz.
My mistake editing the wiki, it should be 1kHz ? --
For more info on the tinySA go to https://tinysa.org/wiki/
|
Re: FM Modulation Frequency
Can you try to reduce the output level and see if the warning disappears? For 100% AM depth you have to be able to increase the output level at the maxima so the average should be lowered --
For more info on the tinySA go to https://tinysa.org/wiki/
|
Re: CISPR Resolution Bandwidths and low cost calibrated Antenna
tinySA-App uses scanraw thus ensuring no gaps and 50% overlap. This displayed step size is for information only --
For more info on the tinySA go to https://tinysa.org/wiki/
|
Re: FM Modulation Frequency
I have also noted that AM depth cannot be set beyond 50% without the screen showing a "depth error" message.
|
Well, counterfeiting Cisco routers is more profitable than doing
it with TinySA's? given the market size involved.
In other way, the case of the guy selling them to U.S. DoD shows
how stupid these guys can be.
Ignacio
El 27/11/2022 a las 16:00, Ron Hartikka
escribi¨®:
I don't know.
But I have a guess:
These people are moonlighters who, in their day jobs, they do
similar jobs that are bigger, harder, and more even more evil.
_._,_._,_
|
That article is almost 13 years old! ????
Roy WA0YMH?
On Sun, Nov 27, 2022, 9:00 AM Ron Hartikka < hartikka@...> wrote: I don't know.
But I have a guess:
These people are moonlighters who, in their day jobs, they do similar jobs that are bigger, harder, and more even more evil.
|
I have received my Ultra a few days ago and was just looking at the Signal Generator function. It seems not possible to set the modulation frequency greater than 1KHz on FM (OK on AM). Whatever I try, nothing will increase the frequency, only decrease it? I have the latest FW build installed (as delivered). The spec says it should go to 6KHz.
Regards
Nigel
|
Larry McElhiney
Mike C.
Wander Lucio