tinySA Ultra Signal Generator functionality

[@Dickwooten]

Thanks for pointing these limitations out. I am still amazed when I turn mine on and find out how much it can do. I haven't used the generator for anything yet. I had no idea it would appear that accurate, relatively clean, and go below -100 dBm without an external attenuator.

[@MegawattKS]

This is fantastic. Thanks for all the work developing this! I have two of the original versions (one for SA and one for sig-gen). This is an amazing upgrade and plan to get one (or two :-) ) of these now also.

[@qzorn4440]

very interesting and I just ordered a tinySA Ultra signal generator to use on setting up a SDR 21cm 1420 MHz radio telescope backyard hobby project. 😎 thank you.

[@sarahjrandomnumbers]

Just the perfect video I was looking for. Thanks!

[@radiokiller1452]

Thanks Eric I use it all the time

[@JAKOB1977]

-18dbm is the TinySA Ultra highest output that are valid under 1Ghz, so its more or less secure to hook up to most thing unattenuated when it max can supply -18dbm and got no DC. where the TinySA peaked at -6dbm in low and up around +13dbm in high If I recall on its signal out mode.

[@SpinStar1956]

Just got my Ultra and really like it, however I was misinformed that the Ultra had TG capabilities (for filter sweeps). Would be nice if a couple of TinySA's could be somehow linked (trigger I/O etc.) so that they could together do TG measurements. Still happy with both the TinySA and NanoVNA in that they give accessibility previously unavailable at low cost. Thanks & 73

[@Rick-wy4od]

Pretty damned impressive for a $200 machine! I'm really surprised how accurate the RF generator level output is.. Looks like I'm going to have to purchase one for the field tool kit :)

[@Eduar-d-o]

Great little spectrum analyzer

[@biogons14]

I have found some limitations of the TinySA as a generator. It is not possible to select a sine wave modulation in FM beyond 3.5KHz, and the distortion above 100Hz is very high making it impossible to optimize the tuning of an FM radio receiver. And in this model there is not the external modulation option.

[@vojtechmarsal8576]

I had no idea the signal generator on tiny sa is this good

[@paulcohen1555]

Great product. AMAZING!

[@skylabby]

Thank you Erik.

[@fotografm]

My Tiny SA Ultra puts out a generator signal way lower than expected. As I keep reducing the output level, at some point it starts to get stronger on the connected receiver before disappearing below the noise way sooner than expected. I have tried it on several different receivers with the same result. I don't have another SA I can use to actually measure the output power level.

[@ErikKaashoek]

Please join groups.io/g/tinysa for support

[@r.w.4177]

I have a question. if I set the span on the sweep generator to 500kHz, will it be -250 to +250 around the generator setpoint? or + 0 to +500khz to the set value?

[@ErikKaashoek]

Symmetrical

[@muctop17]

And you get all this for the price of a set of good cables ! 😁 Great! Mine is on the way, hopefully

[@arnaldojunior7]

In the previous model, the VHF band was of good quality, but from 400mhz onwards, I did not feel such a reliable reading of the spectrum, considering that it was provided free of charge. In this “ultra” model, is there a quality in the reading of the entire spectrum, up to about 800Mhz, as happened in the previous model in readings below 300mhz?

[@ErikKaashoek]

Please read this: tinysa.org/wiki/pmwiki.php?n=TinySA4.Comparison and this to understand limitations of Ultra mode above 800MHz tinysa.org/wiki/pmwiki.php?n=TinySA4.Ultra

[@arnaldojunior7]

As I work with professional audio, my interest is in the range from 400mhz to 700mhz and it is this range that in the previous version did not have quality and I wanted to know if it does, if I can trust the reading

[@ErikKaashoek]

@@arnaldojunior7 Yes, you can. The range up to 800MHz has the same accuracy as the previous model up to 350

[@arnaldojunior7]

who is the official seller?

[@ErikKaashoek]

See tinysa.org

[@cladimarce]

Great product, but this ultra model is not longer available at Zeenko Store …

[@ErikKaashoek]

Will be available again in some weeks

[@marcinmakan9710]

HI Erik, would it be possible to update the AM so that it is possible to modulate a signal which is in MHz area with a very low signal that is in the area of 10Hz only? Currently this is not possible…

[@ErikKaashoek]

Will have to investigate how low modulation frequency may be possible as there is some limitation

[@marcinmakan9710]

@@ErikKaashoek thank you very much! I appreciate your quick feedback and the willingness to look into it. This feature would be very helpful for me.

[@panosk3254]

Thank you very much Sir !

[@mariovano]

Great work! I can't wait to get one! Has the frequency granularity improved as well?

[@ErikKaashoek]

Yes, frequency resolution is in steps of 28.6 Hz

[@mariovano]

@@ErikKaashoek GREAT!!!

[@G1ZQCArtwork]

My question is, Can it be made possible to inject AM or FM Modulation from an external source.?

[@ErikKaashoek]

Not possible

[@G1ZQCArtwork]

@@ErikKaashoek That is a shame if there is no mod to do this. Where on the board is the Audio injected.? If its chip to chip then that would pose a problem. Audio injection would be handy to test the audio on a receiver, with more than just tones. I am looking for a signal generator which can do this.

[@ErikKaashoek]

@@G1ZQCArtwork there is no audio injection. The MCU changes frequency and amplitude settings very quickly to do the modulation.

[@arnaldojunior7]

in the tinySA Ultra the UHF filter is still of low quality?

[@ErikKaashoek]

No sure what you mean. There is no separate UHF range.

[@w5cdt]

Very nice…mine will only go down to -76dBm at 100 MHz

[@WolfgangKMeister]

You show the screen reversed on the tinySA Ultra ? A new feature ? [ btw., my tinySA Ultra is on it's way to me :-) ] 73s OE1MWW

[@ErikKaashoek]

DISPLAY/ROTATE SCREEN, also available on original tinySA with newer FW

[@WolfgangKMeister]

@@ErikKaashoek Thanks for the hint. Once again (for me): RTFM, or just look closer. Have this ROTATE on my two tinySA too ;-)

[@wilsmit7322]

Is de firmware van de Ultra te upgraden via de tinySA App ?

[@ErikKaashoek]

Did not test yet but should be. No risk in trying

[@wilsmit7322]

@@ErikKaashoek Firmware upgrade gelukt met de App. Vraag : Ik heb heb een kortere betere coax kabel (RG402), is het niet beter om de Ultra met deze kabel te calibreren ?

[@ErikKaashoek]

@@wilsmit7322 If all is well it should not make any difference

[@ke4est]

Awesome!!

[@WanderLucioGomes]

Nossa. Está maravilhoso

[@PT2KSC]

Congratulations

[@wiwingmargahayu6831]

wind turbine noise