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I ordered direct from Maggie on AliBaba with trade assurance
Well packaged and arrived without any problems
--
Clive - G7SVI

After seeing this video

I wanted to compare the phase noise of the Rigol DSA815 with the tinySA
In the Rigol video the phase noise is measured at 10kHz distance and is about -85dBc/Hz
How about the tinySA?
Well, it is a bit worse, but not much: -83dBc/Hz

On Mon, Sep 21, 2020 at 06:14 PM, waltcates wrote:

Good morning?group,

?

I got my tinySA three days ago. I have downloaded tinysa.exe and paired my tinySA to a TAB PRO S tablet. I was guided to this site in a discussion about the tiny on another site. I got the tiny as a replacement for my 60-year-old HP141 that died again.....

Dear Walt,

yes, one of the reasons for me getting the Tinysa is, not only can I put it in my pocket/ suitcase/ etc, as well as walk around with it to trace qrm, but I think I am going to have to dispatch my HP141 anslysers - I have three of them with four different plugins, covering the whole available frequency range. I think the single most useful one is the 0-1.1ghz one, as it did not take too long to warm up and settle, and it was almost as easy to use as the 0-110mhz plug-in. AND I have not used them for over 5 years, so I would probably have to swap plugins and get the maintenance manual out. Nevertheless, I learned a lot from them.

The only problem is looking at close-in signals, such as ssb intermodulation and phase noise. To do this, even the HP141 0-110mhz plug-in needed to warm up before continuous retuning was required. Also, the 1-3ghz area is quite important (cellphones, wifi, microwave oven leakage etc) but I have got a Deepace KC 901s which can pass off as a handheld spectrum analyser as well as being a scalar network analyser (0-3ghz). The most recent version with 0-6ghz, vector capability and 1khz rbw is ?1600, so no chance to upgrade for me, and still probably not too effective to measure phase noise.

?HOWEVER, I have decided that when I need to do such work, I will have to spark up a pc and a sdr dongle. I have a rsp1 which I have got a rbw down to 50hz. The only problem is you need as much bench space and setting up as the HP141 needed. On the plus side, I can get rid of three boat-anchors.

steve L G7PSZ

I tried V1.0.179 and was able to get a trace. Excellent work, Cathy, Erik, Herb et al!

Hi Erik, no reason in particular, I was trying all the options to see if I could get something to give me a trace.

Hmmm, a difficult question to answer.

It is in the (relatively) new wife’s house, where I do not have any of my ham gear (I wonder why?). I did bring up a Clansman 320 backpack radio (40 year old hf military transceiver) a while ago but could not receive anything. I presumed it was the solar panels or the data over phone line, as it worked fine in the middle of a field. I did not have the TinySA then (or the nanovna, which can be used as a sort of spectrum analyzer).
Eventually we will move into my house, but probably without the reclining chair but with the Mrs (more use than a reclining chair, but more expensive to run). The problem is that the PSU is on the whole time (for the chair, not the Mrs, although installing an on-off switch, or at least a mute button is an interesting project to work on).

Steve L. G7PSZ

Steve--
Did you sell the ham gear or the reclining chair??? Inquiring minds would like to know...

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On Tue, Sep 22, 2020 at 12:58 PM, Erik Kaashoek wrote:

As stated the conversion is not yet completed

Hi Erik,

Ah OK, understood, please keep up the good work.

Regards,

Martin

As stated the conversion is not yet completed

I'm a bit confused with respect to scattering parameters S11 and S21 being shown on the display, when being used as a SA.

Regards,

Martin

The following files have been uploaded to the Files area of the [email protected] group.

• /tinySA-app/tinySA-App.exe

By: Erik Kaashoek

Description:
This is the nanoVNA-app adapted for use with the tinySA. It should also still be compatible with the nanoVNA The conversion is not finished yet so co-existence with nanoVNA-app.exe may cause problems with the ini file No warranties!!!!!!

You have an excellent tool to trace it.

Set the span to scan ( some of) the interference frequencies, eg 3-14mhz.

Put the telescopic aerial on the lower sma socket.

Extend the aerial and see the noise spikes on the screen, then walk around the house/ garden/ street, observing the amplitude of the noise spikes. ?As you get nearer and the spikes get larger, collapse the aerial down a bit. Eventually you might get to within a few feet.

I identified a switch mode psu in the house which powered an electric reclining chair within minutes this way - one if the first uses of the device. It is possible to use handheld directional aerials ( or a mw ferrite rod aerial from sn old aerial) so that you can triagulate the source if distantly generated noise.

On the wiki for the SA, you will find info on using an external lna (low noise amplifier) to increase sensitivity so as to be able to detect more distant noise sources. I am in the process of making one, which I will probably velcro to the sa case.

Steve L. G7PSZ

Here are my settings.
TinySA is in LOW mode !!!!!!!

On Mon, Sep 21, 2020 at 08:57 PM, stefan baartman wrote:

Any possibility we have different version devices?

Yes. The latest build is V1.0-91 and you are running V1.0-61
Pleas upgrade.
Read the wiki for guidance how to upgrade

Hi Kurt, Hope this finds you well.
With regard to the User Guide you produced for your presentation about TinySA in Danish language.
I think you indicated you may produce a copy in english, forgive me if I missed it but would be very interested in getting a copy.
I have read several of your documents and I'm sure it will be a very handy asset for the shack.

Thanks in advance.
Wayne
VK6EH