Got my shipping confirm today. I had ordered the unit ~11:30 EDT, 23JULY.?

Not a bad turnaround! Tnx es 73!

I was wrong...if the distortion is due to the analyer’s first mixer, the third order products will indeed change twice as much as the change in input tones. ?The three to one change I mentioned is for a DUT.
Gary
W9TD

When dropping both tones by 10dB, the intermodulation products should drop by 30 dB. It is third order distortion after all.
Gary
W9TD

See this comment
/g/tinysa/message/391

?>level (in dBm)? = ( byte 3 (0x5C) + (byte 4 (0x00) * 256) )? / 2 - 128 -> -82dBm

Now need divide on 32 and sub 128

Erik,
? Has the binary format of the scanraw command Changed?? The following conversion no longer seems to work for me:

? ? level (in dBm)? = ( byte 3 (0x5C) + (byte 4 (0x00) * 256) )? / 2 - 128 -> -82dBm

? The above worked for me previously, but for a displayed value ~-25.5dBm?I'm receiving a byte pair of 0x9e and 0x0c.? Thought I'd check with you before spent time debugging my script.

- Herb

On Wed, Jul 29, 2020 at 03:20 PM, Bill Cromwell wrote:

My ticket says:

"Estimated Delivery on 10/20"

During my second year of Kindergarten I learned patience while taking
the advanced studies. I was First in the nation in "sandbox" and still
hold first place in naps.

<sly grin>

73,

Bill KU8H

bark less - wag more

My ticket says:

"Estimated Delivery on 10/20"

During my second year of Kindergarten I learned patience while taking the advanced studies. I was First in the nation in "sandbox" and still hold first place in naps.

<sly grin>

73,

Bill KU8H

bark less - wag more

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Hi,

I have to wait however long I have to wait. I held off for a while thinking I would wait for the four inch screen. Then I considered that I might buy a second unit to use as a tracking generator. So I went for a tinySA now and will buy the four inch model later and use both of them displaying the results on the four inch screen. I am really not interested at the moment in using PC software. Maybe later.

73,

Bill KU8H

bark less - wag more

Thankyou.

I have played with my HP141 boat anchors using the highest frequency plug-in in the past and adjusted the centre freqency knob to see if signals go up or down in the display (to determine if it is a genuine signal or spurious spike due to harmonics etc). This is easier to do with a knob on the old gear rather than changing frequency via the menu (sorry if I am telling readers how to suck eggs).

i am sure your possible robust design specifically for the high frequencies (dropping 0-300mhz) would make a complementary unit to the current one . It would mean a ?pair of devices between them covering 0-3gkz) with satisfactory performance for around ?100 ($120) - a bargain. Although there are various handheld devices around now ( I have an old Deepace KC901s at ?1300), they are much more expensive, bigger, and/or do not have as good a performance ( eg rbw of 2.8khz).

I understand the worries concerning ?possible complaints of unexpected performance, but most buying this kit will have some appropriate insight and knowledge and should understand about limitations of the kit. I am sure I am not the only one to use a spectrum analyser to measure leakage from the microwave but most users have far more sophisticated tasks for these devices. I would have thought that the nanovna would be far more challenging than a spectrum analyser to use for those without a professional background but they seem to sell like wildfire ( as does the present Tinysa).

As explained in previous posts the current tinySA design with some small HW and SW modifications can go up to 3GHz (using harmonic modes) with a HUGE disclaimer.
It can be VERY difficult to interpret the measurements and we expect MANY customers complaining so it is NOT a feasible product.
I have studied how to do a more robust design up to 2GHz or 4GHz and if you are willing to drop the bottom 300MHz (0-300MHz) it is feasible for an acceptable cost.
But for now not on the priority list.

Dear Eric,

i am new to this forum, but have ordered TinySA.?

I own a shack full of HP 141 and other boat anchors, which have hardly ever been used. I am very interested in what you have done to get a TinySA board working up to 3ghz.

i am sure there would be a market for a 300mhz-3ghz Analyser so that this and the TinySA would cover the whole range from zero to 3ghz. I could then get rid of all those boat anchors. I am having to downsize sixty years (!) of collected radio equipment and electronics stuff as I am never going to use/repair most of it. (I also have a large quantity of vintage computer stuff I want to actually get working prior to possible donation to a computer museum).

Stephen Laurence, G7PSZ

See the

Congratulations on a successful initial run, Erik.
I know it is early days, but are you considering a 4" version?
/ Gerry

The tinySA has (too?) many settings to optimize the scanning for a specific measurement purpose.
I added a wiki page that shows what impact some of these have on scan time and noise level.

It seems to be that I am one of the lucky ones who does get one from the first stock :)

On Tue, Jul 28, 2020 at 10:34 PM, Erik Kaashoek wrote:

Plenty of stock again on Aliexpress!!!!

Sorry for being wrong. The new Aliexpress quantity is pre-sale of the second batch. That is why the lead time is so long

开云体育

Erik,

thank you for clarifying and thank you for another little hightec tool :)

Chris

---
'Everything should be made as simple as possible, but not simpler' -- Albert Einstein