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Contact zeenko and ask explanation

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I would like to cross-check with other TinySA fans on their experience with the "Zeenko" store on Aliexpress and delivery to Europe particularly Germany.
I ordered a TinySA on Oct. 19, 2020 in the Aliexpress Zeenko store, which was at that point in time one of the few sellers recommended.
It was not in stock at that time but got back into stock and was shipped on 28.10.20 with Aliexpress standard shipping.
Per the Aliexpress tracking it was announced to PostNL on 11.11.20, who obviously should deliver it in Europe/Germany.
It went further and is now in the status "The item cannot be delivered and will be returned":


I have not heard anything about the parcel through phone or e-mail, i.e. I have zero information beyond the information on the PostNL tracking site.
My shipping address is definitely correct as I have an Aliexpress acount and received numerous shipments through that account and address over the last 12 months.
I received the last item from another seller just yesterday.

Did anybody make the same experience or has an explanation, why this is happening?
My guess would be that it is related to the VAT which applies, if the value of the shipment is higher than EUR 22 and that there is potentially a processing issue.
BTW: I never ordered above EUR 22 from Aliexpress before.

Many thanks

And have a look at this video:
https://www.youtube.com/watch?v=AfVv0w6oiDA
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If you give me some time I can make a FW variant that uses a bit different way to create the waterfall that hopefully will work
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Very weird, I checked again the v1.1-72 FW and water does fall.....
There is no setting for the waterfall and I have absolutely no clue what could cause this. Is the big waterfall also white?

Please specify the frequency band to scan
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Hello Erik,?
Could you please give us the details how to do an experimental frequency setting schema to reduce scan time to 0.5 seconds?
I will use my tinySA as a Bandscope (and other RF applications), it shoud arrive soon here.

Thank You,
Julio.

Hello Erik,
Could you please give us the details how to do an experimental frequency setting schema to reduce scan time to 0.5 seconds?
I will use my tinySA as a Bandscope (and other RF applications), it shoud arrive soon here.

Thank You,
Julio.

Hi David,

unluckily I bought the same kind of misbehaving tinySA clone from KKmoon via Amazon.

I checked the internals and found out, that (....deleted by Erik to prevent cloners from learning, If you want to know what to do, send me a private message...)
Best regards,
Tom Korte

Range it will be.

I second "Range".? Second choice would be "Sweep" which is a term a firmware writer for the NanoVNA selected -- but Range would have been better there also.

I propose "range".? This term is often used on test equipment.

Roger

Hi,

Thanks for posting that. I saw the price on the linked site at eBay. I
can't afford to send 25 pounds of money but I found the same thing
(runs on 125 volts AC) for only a few dollars <sly grin>. I located it
on Amazon and the exchange rate puts it close on price. I have some
notion about British Pounds/Dollar akin to my approximations of metric
conversion like kilograms/ounce, meters/foot, seconds/second,
liters/ounce, etc.

I actually found a similar one for less! Even the photo of the cheaper
one looked - well- *cheap*. As you mentioned there were others with
perhaps nicer features for a little more up to and including a lot
more. I am going to look at the details and choose either the exact one
you have or one that is not much more costly.

Happy Holidays Magicbean.

73,

Bill KU8H

On Mon, 28 Dec 2020 01:24:20 -0800
"Magicbean" <smstone@...> wrote:

For SMD components I use one of these (mine is model number 959. This
might be the replacement?)



It has nozzles so you can restrict the heated area. You can adjust
the air temperature between 100C and 400C. (300C works well for me
with the nozzle about 2” away). And it has a fan speed control to
help stop blowing nearby components off.

The main thing to remember is that the surface tension if the solder
holds components in place or pulls them into place while you’re
soldering.

i always use this with solder paste (buy it in a syringe so you can
dispense it by hand. Buy some cheep solder paste dispensing needles
too).

it’s quite easy with practice. You’ll probably need metal, non
magnetic tweezers to help you place the component.

I’m a professional electronics engineer but I use this ?for my own
projects at home and it’s adequate. I’m certain that you would get
something better if you paid more.

I propose (frequency) STEP

Hi Steve,
The PE4302 QFN24 encapsulated IC is worth nothing with tweezers. You need a hot air gun here.
Indeed, in the case of a two-point soldered part, the tweezers may be used in some cases.
A very small (around 0402) single soldering iron is also a solution.
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73, Gyula HA3HZ

I forgot to mention that you also need a syringe of flux and some solvent to clear the board afterwards.

If you want to look at videos by the hundred on these techniques, search on utube for repairs to iPhone/Ipad for the principles and challenges. Hoping to repair some duff IPads is why I bought the tweezer soldering iron, the hot air gun, tubes of flux etc. I soon gave up with the IPads.

Steve L

I have been following this thread with interest........

I have not yet damaged any of my TinySA or nanovna collection. I suppose I am inherently careful with input overload. If in doubt, a 10db attenuator on the input while setting things up gives a margin of safety.

However, no one has mentioned the use of a tweezer soldering iron. I got one for about ?30 from Banggood. Both arms of the tweezer are heated. You put it either side of the component to be removed and lift away. Replacement is the reverse -pick it up, let it get hot and then place on the board. No heat gun, blunderbuss soldering iron needed.

I have not used it myself, but I did lend it to a friend who said it was fantastic. I also lent him my cheap “microscope”, also from Banggood, about ?40. For us veteran enthusiasts, these aids are essential. The microscope has been surprisingly useful.

I will have to venture forth one day, when I have slipped up.......... (or ask my friend to do it for me).

Steve L

Sent from my iPhone with speeling mistakes