... and it's "by the way"! LOL

Hi,

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It's a nice simple & clean interface, well done, and thanks for your efforts.

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My only observation is that I can't seem to control the pre-amp in the settings menu, but maybe I'm looking in the wrong place ?

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Regards,

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Martin

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On Mon, Mar 10, 2025 at 08:28 PM, Juan M0WWA wrote:

I got a second coffee and NOW see the link!? Gads, I'm getting OLD-er...

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Dan N1DH

Does it work with the non-Ultra tinySA ?

--Jim

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Hi Thanks for this cool program!? But I think I need more coffee...? I don't see a download link in this message

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73

Dan N1DH

Hello and many thanks Juan (M0WWA) & Xavier

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It works very well!

The link was good and Virus Total gives the software a clean bill of health

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Regards

Ian

VK3YCQ

It’s in the email notification that I got.?

No link available.

Not sure what you are trying to do or why with the repeater but if you have an older FMradio you can tune to the test signal connect the SA to its 10.7MHz ((etc) IF signal before the demodulator and watch the signal there instead - much easier?

When I die and they clean out the shop they will need a big tote just for the different analyzers lol.

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John

On Sun, Mar 9, 2025 at 02:26 PM, Erik Kaashoek wrote:

The Ultra has a built-in LNA which is needed to measure the NF of a amplifier.

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Erik,

Thanks for the rapid reply and information - that makes complete sense.? The array videos you have created for the TinySA product line are extremely useful.? Now it's time for me to admit that I posted my query since I was unable to locate my TinySA Ultra, amidst an ever-expanding array of electronic toys, er I mean test instruments.? I know it is out there somewhere in a plastic bin, but impatience to measure the NF on a new LNA overcame me.? In the meantime, I learned about the upgraded ZS407 model and ordered one from R&L.? Can't have too many spectrum analyzers laying around!

73,

Bruce??

The Ultra has a built-in LNA which is needed to measure the NF of a amplifier.

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Here a video that demonstrates how to do a NF measurement using the tinySA Basic. FOr this you need a extra LNA.

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For the tinySA Ultra you can do it as shown here:

No extra LNA is needed.

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Designer of the tinySA
For more info go to

I have both the standard and Ultra versions of the TinySA.? Both incredibly useful tools.? I recently became aware that the Ultra has built in ability for noise figure measurements on LNAs.? Purely out of curiosity I am wondering why this measurement is not possible with the standard TinySA...i.e. is there something intrinsic in the design that makes it impossible?

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I am also wondering if there are any "tricks" to making a NF measurement with a standard TinySA....i.e. would I have to have a calibrated noise source etc?

Not to mention 1 port handles it's whole frequency range... Get an ultra?!

The Ultra is much better for doing Bessel nulling, its resolution bandwidth is much narrower.

Gary

W9TD

First of all I must explain that I am pretty much a newbie when it comes to spectrum analyzers and I apologize if the answer to my question should be obvious.

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I have a TinySA and I've been working on an amateur DMR repeater that is using a Repeater Builder STM32-DVM controller. It became necessary for me to null out the FM carrier and the Bessel null procedure was recommended. However, I wasn't able to properly discern any carrier level changes when adjusting the Tx on the controller. To my understanding, the High channel input does not have enough resolution but the Low channel input does. All the examples of using a TinySA that I can find seem to be performed on a VHF or lower frequency.

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My question is this, would a TinySA Ultra+ model work in this situation? If so, any help with setup recommendations would be greatly appreciated.

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Regards and thanks in advance,

Chris

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I am starting this new thread because the old thread below is locked:

/g/tinysa/topic/possible_design_issue_with/109589683

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Yesterday, the earphone jack on my 2-year old TinySA detached from the PCB. The jack's footprint has three pads, two of which are connected by a very fine trace (fig. 1) and one of the two connected pads is missing.

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I did not attempt to join back the missing pad because soldering a fine wire on the broken trace is beyond my dexterity. Fortunately, the jack's 3 solder terminals are replicated on the top of its body (fig 2). So, I replicated the missing connection by soldering a fine wire between the 2 top terminals.?

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Then I soldered back the other two terminals to their respective PCB pads. I would prefer to mechanically secure the jack by tying it down to the PCB using either cable tie or twisted wire, but cannot do so because the LCD on the opposite side prevents me from drilling holes (fig. 3).

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So, I ended up slathering epoxy glue on the jack and PCB (fig. 4).

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To prevent the jury rigged jack from detaching again in the future, I resort to permanently leave a pigtail connected to it (fig. 5).

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Feedback welcome!

73, Leong, 9M2LCL, ex-9W2LC.

I agree!