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.
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.
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.
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 :)
-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.
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
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?
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
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
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.
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 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 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 ?
