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There's been a lot of talking about a tracking generator function, but what about developing the firmware towards a simple RF generator? I know it's there, but as a side function, without a proper HMI, which would be awsome! I myself am going for my second tinySA to use it exclusively as an RF generator. Just sharing some thoughts.
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Paulo, Please elaborate what HMI extension you would like to see for the RF generator function? --
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For more info on the tinySA go to https://tinysa.org/wiki/
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A nanoVNA will give you a tracking generator with measurement on
receive. A tinySA with tracking generator would be almost a
duplicate of the VNA.
On 29/03/2021 14:52, Paulo Brandao
wrote:
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Show quoted text
There's been a lot of talking about a tracking generator function,
but what about developing the firmware towards a simple RF
generator? I know it's there, but as a side function, without a
proper HMI, which would be awsome! I myself am going for my second
tinySA to use it exclusively as an RF generator. Just sharing some
thoughts.
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On Mon, Mar 29, 2021 at 07:26 AM, geoff M0ORE wrote:
A tinySA with tracking generator would be almost a duplicate of the VNA.
Have a look here:?https://tinysa.org/wiki/pmwiki.php?n=Main.Mixer ? --
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For more info on the tinySA go to https://tinysa.org/wiki/
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Erik, nothing to fancy, a simple screen where we could see and vary at least frequency and level. A nice fature would be also to control modulation, in terms of frequency and type. Check this display, from a Marconi RF generator,? as an example: 
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Not sure what you are missing: /g/tinysa/message/2903?p=,,,20,0,0,0::Created,,new+fw+release,20,2,200,80286508--
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For more info on the tinySA go to https://tinysa.org/wiki/
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I am surely missing a firmware upgrade! Sorry about that and thanks a lot!
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Dear. I would like to have a better quality sinusoidal modulating signal generator.
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On Wed, Oct 25, 2023 at 08:59 AM, <sugeda@...> wrote:
Dear. I would like to have a better quality sinusoidal modulating signal generator.
Me too, but I do not know how. ? --
For more info on the tinySA go to https://tinysa.org/wiki/
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Look for same on epay.
Dave - W?LEV
On Wed, Oct 25, 2023 at 4:01?PM Erik Kaashoek < erik@...> wrote: On Wed, Oct 25, 2023 at 08:59 AM, <sugeda@...> wrote:
Dear. I would like to have a better quality sinusoidal modulating signal generator.
Me too, but I do not know how.
?
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For more info on the tinySA go to
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sugeda,
Try using a low-pass filter.? That is how some of the kit builders provide a sinewave output.? There are switchable ones like these:
Building a holder for plug switchable filters is the least costly, depending on the frequency range.? Since the TinySA output is a squarewave, the filter would be just under the 3rd harmonic of the primary frequency.
73
Evan
AC9TU
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QUOTE:?? I would like to have a better quality of?8 point approximation of a sine wave modulation signal.
Goodness sakes !!!!.....? Can't we EVER be thankful for what we have!!????? You can spend over a $1k (used) for something not as good as the TinySA's and the ULTRA.?
A decade ago, a good SA would go for over $5k to start.? A reasonable VNA for well over $10k to $15k - absolute rock bottom.? Neither of these price points are reachable by the average amateur or the schools for any quantity buys for students.? Today we have those wonderful and capable pieces of gear for extremely reasonable prices.? I'm extremely thankful for these "gifts" from those who know how.? I can handle analog, but not today's digital schemes which are required for these instruments.? Thank you, guys and gals ! ! ! ! ?
Sure, I want the technology of electrogravatic movement about the universe (heaven forbid, I mean the OORT cloud and beyond, not just LEO or geosync!!).? I want the ability to visit the regions of the Betty/Barney Hill holographic map shown them onboard an alien craft.? I want to visit the Sirius system.? I want to visit the source of the Dogon knowledge of deep space (well.... WELL beyond our little universe).? Of course all this within an earth month's time.
Be thankful for what we have!!!!!
Dave - W?LEV?
On Wed, Oct 25, 2023 at 8:46?PM < sugeda@...> wrote: RF quality is OK.
?I would like to have a better quality of?8 point approximation of a sine wave modulation signal.
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On Wed, Oct 25, 2023 at 04:01 PM, Erik Kaashoek wrote:
I would like to have a better quality sinusoidal modulating signal generator.
Then I'd suggest buying one... The Tiny / Ultra SA is "what it says on the tin" a 'Spectrum Analyser', the signal generator output, although very useful, is a secondary function, and could be considered to be a free gift :-) Producing a reasonable quality signal generator with a stable, accurate output, is not an easy task, and if you look on-line at the prices of second hand signal generators that are significantly better than the Tiny / Ultra SA, such as those typically made by HP, Agilent, Aeroflex, Marconi or R&S, you will asked to pay ten to twenty times the price, even for something that is relatively old that is likely to be un-calibrated and unreliable. Sorry, but I think you need to be more realistic in terms of your expectations. Regards, Martin
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AMEN, Martin.? You hit the nail on the head.? Good performance costs, even with used "premium" gear.?
Dave - W?LEV
On Thu, Oct 26, 2023 at 10:13?AM Martin via <martin_ehrenfried= [email protected]> wrote: On Wed, Oct 25, 2023 at 04:01 PM, Erik Kaashoek wrote:
I would like to have a better quality sinusoidal modulating signal generator.
Then I'd suggest buying one...
The Tiny / Ultra SA is "what it says on the tin" a 'Spectrum Analyser', the signal generator output, although very useful, is a secondary function, and could be considered to be a free gift :-)
Producing a reasonable quality signal generator with a stable, accurate output, is not an easy task, and if you look on-line at the prices of second hand signal generators that are significantly better than the Tiny / Ultra SA, such as those typically made by HP, Agilent, Aeroflex, Marconi or R&S, you will asked to pay ten to twenty times the price, even for something that is relatively old that is likely to be un-calibrated and unreliable.
Sorry, but I think you need to be more realistic in terms of your expectations.
Regards,
Martin
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In practice the sig gen function is ore than adequate for daily needs.
RX alignment, testing rig sensitivity where having a calibrated level output is required.
If I needed a super duper ultra clean sig gen for ISO9000, NPL or NIST standards then
either I'd ask my employer to provide one of win the lottery and pay for one.
For ham radio, hobby use it's more than enough, no complaints here.
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Looked at the modulation signal on the SA Ultra on my portable scope.
A lot cleaner than the Ultra's little brother
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The Ultra can do AM modulation with much more interpolation points (up to 128 depending on the modulation frequency) where the Basic uses at most 8 points interpolation --
For more info on the tinySA go to https://tinysa.org/wiki/
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Amen brother.? Amen.
?
73s,
Dave, WA3TRS
Mobile: +1-301-802-1929
Email:?
davereiser@...
?
?
?
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From: [email protected] < [email protected]>
On Behalf Of W0LEV
Sent: Wednesday, October 25, 2023 5:12 PM
To: [email protected]
Subject: Re: [tinysa] TinySA as RF generator #feature_request
?
QUOTE:?? I would like to have a better quality
of?8 point approximation of
a sine wave modulation signal.
Goodness sakes !!!!.....? Can't we EVER be thankful for what we have!!????? You can spend over a $1k (used) for something not as good
as the TinySA's and the ULTRA.?
A decade ago, a good SA would go for over $5k to start.? A reasonable VNA for well over $10k to $15k - absolute rock bottom.? Neither
of these price points are reachable by the average amateur or the schools for any quantity buys for students.? Today we have those wonderful and capable pieces of gear for extremely reasonable prices.? I'm extremely thankful for these "gifts" from those who
know how.? I can handle analog, but not today's digital schemes which are required for these instruments.? Thank you, guys and gals ! ! ! ! ?
Sure, I want the technology of electrogravatic movement about the universe (heaven forbid, I mean the OORT cloud and beyond, not just
LEO or geosync!!).? I want the ability to visit the regions of the Betty/Barney Hill holographic map shown them onboard an alien craft.? I want to visit the Sirius system.? I want to visit the source of the Dogon knowledge of deep space (well.... WELL beyond
our little universe).? Of course all this within an earth month's time.
Be thankful for what we have!!!!!
?
On Wed, Oct 25, 2023 at 8:46?PM <sugeda@...> wrote:
RF quality is OK.
?I would like to have a better quality of?8 point approximation of a sine wave modulation signal.
--
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These days, a lot of people like to have Ferrari performance on a Volkswagen budget. This is not only happening with items like the TinySA but I seen this with many others.I don't know where this all comes from, it never used to be that way when I grew up. I guess it is just a sign of our times and today's entitlement societies.
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Thanks for all the input. I'm closing this topic before it turns into a general discussion topic. --
For more info on the tinySA go to https://tinysa.org/wiki/
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Enchilada
DAVE REISER WA3TRS
John Cunliffe W7ZQ