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Ultra has always used CAL and RF as port names
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I just received an Ultra via R&L.? My HW version is V0.4.5.1.? I noticed that the ports on the left side are labeled differently from what I have seen in videos and images.? The top one is labeled "Cal" and the bottom one is labeled "RF."? I was expecting high and low ports.? Did the Ultra change or is this just labeling?

Bill AA6BD

Hi,

Mine arrived too. Actually it arrived Friday but our post office has limited hours and I could not get there until Monday. I put it on the battery charge for a while before turning it on. The display panel seems to be aligned correctly. Now the fun begins.

The message I received from R&L had my order date several days (maybe over a week) later than the actual order. At this point the paperwork doesn't matter - I have the tinySA Ultra:) R&L has my money.

73,

Bill KU8H

bark less - wag more

My TinuSA Ultra. Super.

Let me try to conclude this thread
The SW for both tinySA is largely the same source.
The current tinySA group is a free legacy group that does not allow subgroups.
I do not intend the create a new group for the ultra

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Hi,

first of all, I don't see reason to split the discussions at all. Most of the questions arise are not really bound to the TinySA or the Ultra.

Also because the firmware for both units are planned to be the same, I don't see an advantage.

The comparison done by one member to the nanoVNA groups isn't very helpfull, because there are some different designs from different vendors on the marked that only share the name nanoVNA and some user experience. SO that are in fact different designs that need different groups for support at all.

Regardless of this, I'm not aware that subgroups have additional costs. I have some subgroups in my group and as far as I remember I can add more subgroups free of charge. But the group has to be a payed premium group at all. And this subgroup concept isn't the real thing for every purpose.

If there is some need for separation the tagging with #ultra in the subject is for me the best solution.

All the Best,

Isidro

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Hi Josh,

to have a better and faster result you can use a noise source or a tracking generator in many measurement setups.. Both have different advantages or disadvantages.

If your test setup includes a frequency translation device, like mix down or mix up of the input signal then you also need a second signal generator and a wideband linear mixer fro the tracking generator or a tracking source with offset capabilities.

Have done such slow statistic sum measurements a lot of time with my SAs, it is sometimes the simplest and best solution, it helps to maximize sweep speed and also keep in mind that the VBW has to be high enough not to partially filter the spike, thus resulting in a low level display. Also it hepls to have a SA with variable sweep speed, then it is sometimes possible to adjust the sweep speed to the source frequency variation in a way that the peaks show up faster and with less gaps.

A completely different test setup is to use a XY display and a wideband detector.

If the source has frequency depended tuning voltage that can be used for x channel defection of a scope you can use a wideband detector with a log amp on the y channel and have a realtime plot. Also a setup I have used many times. For the GHz range the well known Wiltron scalar analyzers with heads are very nice. For the lower frequency range up to 500MHz a log detector based on the Analog Devices chips, like the AD8307 works great.

This has the advantage to be realtime and fast, with the disadvantage of a lower dynamic and the possibility to influence the measurement with out of focus frequency components.

But it is a very great setup for IF filter tuning, because if you have a fast sweeping source this scalar analyzer setup can display a full RF range in some tens ms, like my Wiltron 6647A sweeper in combination with my Wiltron 560 Analyzer. 10MHz to 18.6GHz in? round about 50ms. Love this for such tuning things and cable tests. Because you can see the changes live when shaking a cable or doing stability tests with a small rubber hammer.

All the Best,

Isidro

On Mon, Dec 5, 2022 at 05:25 PM, Terry Perdue wrote:

Could it be that the jack is mono?

Stereo
?
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On Tue, Dec 6, 2022 at 12:18 AM, KA9QJG wrote:

Would it not be possible? to accidently short out the audio circuit

The output is short circuit protected
?
--

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Jim,
The shape above is the correct shape per the manuals step 11 and the ability, I suppose of the TinySA.? The radio works just fine now after I've repaired it.? I'm simply touching up and checking the rest of it before it goes back to the owner. The original information I gave was really answered.? My follow up question had to do with maybe improving the resolution of the TinySA, not fixing the the Kenwood.? Said another way, I was able to achieve checking step 11 of the Service Manual, it's just as you said the resolution of the trace is rough and I was hoping to find more information on the settings of the TinySA or Windows App that I may have missed.
Josh W4FLI

I think you will find the issue is related to the lack of standards for 3.5mm (1/8th) stereo jack plugs and sockets. If you can try another pair of headphones or earpieces I suspect they will work fine. Its the reason these connectors are rarely used professionally. Alternatively a thin plastic washer on the plug shaft may offset/correct the mating enough to overcome the problem.

On Mon, Dec 5, 2022 at 01:07 PM, <jsbowman6@...> wrote:

The step requires a certain shape of waveform.? How do you make the tiny draw a wave shape??

I wouldn't have answered your question based on the information given.? You haven't given enough information to provide you with a useful answer.? I would have asked questions to get enough information to give you a reasonable answer to your question.? You have apparently made some adjustments to your radio, but there's no telling whether you have improved anything or not.? It is entirely possible - perhaps even likely - that you have made things worse rather than better.? Your first post tells us that you are adjusting something on a Kenwood TS440, but we have no idea what, and it isn't until 6 hours later that we learn that it is VCO1 feedback loop you have adjusted.? I downloaded a service manual for the TS440, and according to the manual I have, there are a number of steps to go through, several of which do NOT require a spectrum analyzer, then you adjust the 62 MHz BPF, which DOES require a spectrum analyzer - AND a tracking generator, which you don't mention having - then a few more steps, and then you make some measurements at VCO1 in Step 13.? So, we have no way of telling what you have done - good, bad, or indifferent - and the image you posted in your third post doesn't have enough resolution to show us anything at all.? Honestly, if you want help, SLOW DOWN.? Give us more information.? Give us time to ask questions about what you are doing.? How can anybody answer your question if they don't know what your question is?

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Mine arrived today too-- Display was skewed quite a bit, but I knew exactly what to do thanks to this group!

Paul

Hi Josh,

I was referring to setting limit lines like the Self Test does to see if your signal shape fit within limits. ?I misunderstood what you needed.

I suspect what you need is a tracking generator which would give you a frequency response envelope. ?You can do that with extra equipment. ?Erik has done a video as I recall.

Larry
AC9OX

Larry,
I just finished adjusting the VCO 1 feedback loop on my Kenwood TS-440 ham radio.? I used the Max Hold on the Tiny as well as on the Windows app and it worked fine.? Then I thought about what you said about lines.? How do I just have lines instead of frequency spikes?? Not wanting look a gift horse in the mouth......or at least a cheap horse, is there a way to make these traces faster?? I found I would make an adjustment then have to wait several minutes and or restart the trace to see how it affected the result.??
Josh

Hi Jim,

On 12/5/22 20:08, Jim Shorney wrote:

...from R&L, I also never saw a shipping notice.

I know you told me off list when you ordered it from R&L, but I forget.?
I ordered one from R&L around Thanksgiving. I got the out of stock and
we are placing you on back order for this item email. Maybe mine will
arrive before Christmas.

I did note that the LCD moved around if I tapped the edges of the case. This is turning into a QC issue. I investigated and found that the LCD DOES have two adhesive strips, at the top and bottom edges. They were not adhered to the board. I have seen this in my own work place. I may be that the hurried assembler is not applying needed pressure to seat the adhesive after setting the part in place. I was able to get it to stick in place by gently applying pressure to the top and bottom edges of the LCD. Emphasis on GENTLY. We'll see if it holds.

Will be interesting to see if the one I get has the loose LCD problem.


73

Stan
KM4HQE

...from R&L, I also never saw a shipping notice. Timing was perfect. My mail carrier was running a little late today. As I got home from work and walked out on my porch to check my mail I saw the mail carrier in front of the neighbor's house. I patiently waited until I saw the carrier sort through his letters and pull out a small white box before he approached my house. YES! A box from R&L. Santa wears a USPS uniform! I thanked him profusely. This is prime porch pirate season so I was a bit paranoid.

Works fine, passes all self tests. I upgraded the firmware and have been playing a little. That 4" screen is a beautiful thing.

I did note that the LCD moved around if I tapped the edges of the case. This is turning into a QC issue. I investigated and found that the LCD DOES have two adhesive strips, at the top and bottom edges. They were not adhered to the board. I have seen this in my own work place. I may be that the hurried assembler is not applying needed pressure to seat the adhesive after setting the part in place. I was able to get it to stick in place by gently applying pressure to the top and bottom edges of the LCD. Emphasis on GENTLY. We'll see if it holds.

73

-Jim
NU0C