Yes, the cable diameter already meets this production tolerance given by them.


I'am not read the chinese characters; - here looks missing the jacket, from the dimension list...


- amazing cable, - branded is not cheap, even on aliexpress;


- in any case, there may be differences



滨蝉迟惫á苍

Thank you Erik for the quick reply. ?I'm glad it's nothing serious. ?Overall, I am very happy with this analyzer.?
Tomasz

Still hoping to get this bug resolved.

To make this even more confusing to figure out, this error is not a simple percentage applied to all amplitudes.? Referring to the example in my previous post:

545762525.000;?????????? -134.809?????????? (marker shows -117.1)
548322611.000;??????????? -69.185??????????? (marker shows -60.094)
655479516.000;?????????? -135.025?????????? (marker shows -117.28)

-134.809 is 115.12297181896% of -117.1
-69.185 is 115.12796618631% of -60.094
-135.025 is 115.13045702592% of -117.28

We are still tuning the criteria for the flatness.
The important part of the pass band, the left side, is good, the criteria for the right side may be a bit too strict.
No need to worry, the next FW version will probably pass test 7.
--

Hi
I have TinySA ultra but unfortunately it does not pass its selftest 7. You can see that the filter does not have flat characteristics. ?Is this a serious error? ?The device was purchased from the Zenko store. ?What could be the reason and should I complain about the device?
Tomasz

Istavan,

You might want to look at the data for SS405 from this vendor. It seems to be very close to what you are seeing and what is shipped with the liteVNA 64 I just received.



John

Hi,

A lot of information has been shaken out of the bushes in this thread. I have always been a "forty meter ham" and I get dizzy if I exceed 30MHz! Checking harmonic content at *my* frequencies seems rather trivial compared to what these machines and their cables can do. Thank you everybody for the big boost in confidence using these. I have been considering use of the amateur satellites so I might use some of the higher spectrum capabilities here but not even close to the limits.

73,

Bill KU8H

bark less - wag more

Erik,
Thank you!

With best regards,

I think most miss the point, Hugen clearly stated at the begin of this thread that the delivered cable is a Chinese version of LMR100.

John

WIll have a look if this will fit in available memory.
The functionality is already implemented for the tinySA Ultra
--

Input levels are +/- 0.5 dBm relatively 30 M for all that freq, 10k including.

@-25dBm:

Freq.??? Level, dBm relatively 30M
10k?????? +6.6
100k???? +1.8 ??
200k???? +1.5
500k???? +2
30M ? ???? 0
140M???? +0.4
200M???? +0.8
300M???? +0.3
330M???? +1.1
350M???? +1.2

With best regards,

开云体育

I ordered mine from eleshop.nl. As always, no problems.

All the Best,

Isidro

开云体育

Hello,

this cables aren't compareable at all.

The RG316 is a cable for flexible use. The SS405 is a cable to have a more flexible alternative to the corresponding semirigid cables.

The SS405 will last longer then a semirigid if moved, but much less then a RG316.

The SS405 can last long if the bending diameter is limited by a tube with limited bending capabilities and the SS405 can move freely inside this protection tube.

You can use a spiral coiled tube, like the one made for showers. This protects the cable.

The RG316 in contrast is a very simple cable that is easy to handle with limited capabilities.

Please be aware that the linked datasheet for the Suhner cable shows a very interesting thing, the inner conductor is a mix out of steel and copper wire. This shows that this cable is made for robustness.

The RG400 is a different thing, it is more of the RG223/RG58 size.

All the Best,

Isidro

On Sat, Jan 21, 2023 at 03:46 PM, Erik Kaashoek wrote:

nanoVNA-H4 from one of these sellers

Yes, I would buy for R&L. ?In fact, I just ordered it! ?

Thank you for your reply. ? ? ? ? ? ??

larry

What error in the output levels versus frequency did you observe?
--

滨蝉迟惫á苍,
SS405 on Aliexpress:
Ihttps://www.aliexpress.com/item/1005004854207165.html?spm=a2g0o.productlist.main.21.783dO64HO64HDq&algo_pvid=b038bcef-2cbb-4478-a6f5-2ef2b2dc1e85&algo_exp_id=b038bcef-2cbb-4478-a6f5-2ef2b2dc1e85-10&pdp_ext_f=%7B%22sku_id%22%3A%2212000030755942163%22%7D&pdp_npi=2%40dis%21EUR%215.29%215.03%21%21%21%21%21%402145294416743961466822110d06b7%2112000030755942163%21sea&curPageLogUid=6INdBIWHT3Id

Vladimir

Hello 滨蝉迟惫á苍!

Link for You:

Datasheet: - until 18 GHz,
but
Sale only to commercial customers, traders, freelancers and public institutions.
No sale to private individuals / consumers within the meaning of § 13 BGB. (BGH)

Other Address:
, but until 3000 MHz only(?)

Tel.??? +49 231 25 72 41????? Fax???? +49 231 25 23 99
?E-mail: info@...
?https://www.kabel-kusch.de

73 de Vladimir, dl7pga