The Chinese have certainly come on quality-wise from the crap they
used to churn out a couple of decades ago. I didn't expect much at all
from these two items I got off Ebay; less than 100 bux the pair, they
were. However, credit where it's due, they've worked wonders for the
paltry sum of money they want in return.
This photo shows a TinySA in RF generator mode outputting a claimed
-23dbm and some other Chinese gadget - an RF power meter - agreeing
with it to within 0.1dbm. Not only that, but both test as in spec with
my HP RF power meter. Not only *that* either, but they both go down to
-60dbm and agree all the way whereast the HP bottoms out at -30. And
the Chinks have done all that without recourse to the very expensive,
heavy and bulky thermistor head the HP unit requires. Respect is due,
here, I'd say. (we should still nuke 'em over Corona virus, but that's
another matter).

https://disk.yandex.com/i/CVMa6sDNc2X1Nw

On 2024-04-01 19:21, Cursitor Doom wrote:
> The Chinese have certainly come on quality-wise from the crap they
> used to churn out a couple of decades ago. I didn't expect much at all
> from these two items I got off Ebay; less than 100 bux the pair, they
> were. However, credit where it's due, they've worked wonders for the
> paltry sum of money they want in return.
> This photo shows a TinySA in RF generator mode outputting a claimed
> -23dbm and some other Chinese gadget - an RF power meter - agreeing
> with it to within 0.1dbm. Not only that, but both test as in spec with
> my HP RF power meter. Not only *that* either, but they both go down to
> -60dbm and agree all the way whereast the HP bottoms out at -30. And
> the Chinks have done all that without recourse to the very expensive,
> heavy and bulky thermistor head the HP unit requires. Respect is due,
> here, I'd say. (we should still nuke 'em over Corona virus, but that's
> another matter).
>
> https://disk.yandex.com/i/CVMa6sDNc2X1Nw
>

The TinySA and TinySA Utra designs are not Chinese but Dutch, see https://tinysa.org/wiki/pmwiki.php
It is produced (and sold) in China by Zeenko, see https://tinysa.org/wiki/pmwiki.php?n=Main.Buying
The rest of the offers on Ali or Amazon are mostly clones that do not meet the spec and will fail FW upgrades (aka chinese crap).

Arie

On Tue, 2 Apr 2024 11:44:46 +0200, Arie de Muijnck
<eternal.september@ademu.com> wrote:

>On 2024-04-01 19:21, Cursitor Doom wrote:
>> The Chinese have certainly come on quality-wise from the crap they
>> used to churn out a couple of decades ago. I didn't expect much at all
>> from these two items I got off Ebay; less than 100 bux the pair, they
>> were. However, credit where it's due, they've worked wonders for the
>> paltry sum of money they want in return.
>> This photo shows a TinySA in RF generator mode outputting a claimed
>> -23dbm and some other Chinese gadget - an RF power meter - agreeing
>> with it to within 0.1dbm. Not only that, but both test as in spec with
>> my HP RF power meter. Not only *that* either, but they both go down to
>> -60dbm and agree all the way whereast the HP bottoms out at -30. And
>> the Chinks have done all that without recourse to the very expensive,
>> heavy and bulky thermistor head the HP unit requires. Respect is due,
>> here, I'd say. (we should still nuke 'em over Corona virus, but that's
>> another matter).
>>
>> https://disk.yandex.com/i/CVMa6sDNc2X1Nw
>>
>
>The TinySA and TinySA Utra designs are not Chinese but Dutch, see https://tinysa.org/wiki/pmwiki.php
>It is produced (and sold) in China by Zeenko, see https://tinysa.org/wiki/pmwiki.php?n=Main.Buying
>The rest of the offers on Ali or Amazon are mostly clones that do not meet the spec and will fail FW upgrades (aka chinese crap).
>
>Arie

Most of the cheap Chinese gear has US or european chips inside. I
don't understand how they get them so cheap.