Topic closed

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Designer of the tinySA
For more info go to

Bruce Hawkins

Hi you-all,

Aliens are many hundreds, if not thousands of years ahead of us (maybe even millions) - I dont our antiquated technology, is even slightly relevant.? Even as cool and neat the aforementioned devices are...

Bruce Hawkins AC6DN

On Thursday, December 5, 2024 at 01:49:44 AM CST, i2NDT Claudio via groups.io <i2ndt@...> wrote:

the TinySA and also the nanoVNA are often used in TV series! I spotted a nanoVNA used to debug an alien RTX !!! the series was Roswell.

Re: TinySA safety

#18738

Without anything connected to the input it is VERY difficult to damage the tinySA

You can check this by doing a full range scan , zero to 6 GHz, and check if you see anything close to 0 dBm. Even next to an active microwave or wireless access point you will not see much without antenna?

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Designer of the tinySA
For more info go to

Re: TinySA safety

#18737

I would be far more concerned about the effects of x-rays on my body than on a TinySA. At the power level that may harm a TinySA, you had better be wearing a protective suit.

Zack W9SZ

Show quoted text

On Thu, Dec 5, 2024 at 6:21?AM Geoff KE0BNX via <geochaben=[email protected]> wrote:

This is what gets me worried:

?

"the +10dBm maximum input level is a limit in any RF frequency band, even if the tinySA is powered off. As an example, the tinySA will not detect a microwave oven (2.4GHz) on the screen but can be very well damaged by it. Similarly, other strong out of band sources won’t be detected by the tinySA, but can still induce enough RF power to damage the RF circuitry.? With the telescopic antenna connected, susceptibility doesn’t depend on the tinySA being ON or OFF because the antenna will receive that powerful signal and will inject it into the spectrum analyzer, with serious risk of damage.? Best practice is to not store or leave the tinySA in a strong RF environment (i.e. next to a cellphone or radio transmitter) with the antenna attached when turned off."

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Which is why I was concerned about X-rays, which are just higher frequency RF.

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Re: Tiny SA Ultra on TV show

#18736

Time to apply for product placement fees, and royalties Erik, need an agent? ?

Re: TinySA safety

#18735

I have a commercial spectrum analyzer / modulation analyzer at work that cost 80k new and has a maximal input level of +10dbm and 0VDC. Yes it is in a metal case but still, the input limitation are there. It all comes down to being careful when you use it.

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John

Re: TinySA safety

#18734

I get the point, but where do you draw the line short of enclosing yourself and the TinySA in a Faraday cage?

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Geoff

Re: TinySA safety

#18733

If you have an antenna connected, there is always that possibility IF you are near a really strong RF source. I don't see it happening without an antenna connected unless you do something like put the TinySA inside a microwave oven and turn the oven on.

Zack W9SZ

Virus-free.

Show quoted text

On Wed, Dec 4, 2024 at 6:10?PM Geoff KE0BNX via <geochaben=[email protected]> wrote:

I have seen discussions about high RF levels damaging the TinySA even when it is turned OFF. So I have to wonder when the TinySA is in shipment if it is being subjected to RF levels that could destroy it. For instance, X-Ray inspection of parcels. Is there a danger of this kind of damage during shipment?

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Geoff

Re: TinySA safety

#18732

开云体育

On 2024-12-05 13:21, Geoff KE0BNX wrote:

This is what gets me worried:

?

"the +10dBm maximum input level is a limit in any RF frequency band, even if the tinySA is powered off. As an example, the tinySA will not detect a microwave oven (2.4GHz) on the screen but can be very well damaged by it. Similarly, other strong out of band sources won’t be detected by the tinySA, but can still induce enough RF power to damage the RF circuitry. ?With the telescopic antenna connected, susceptibility doesn’t depend on the tinySA being ON or OFF because the antenna will receive that powerful signal and will inject it into the spectrum analyzer, with serious risk of damage. ?Best practice is to not store or leave the tinySA in a strong RF environment (i.e. next to a cellphone or radio transmitter) with the antenna attached when turned off."

?

Which is why I was concerned about X-rays, which are just higher frequency RF.

?

If that worries you, don't let the sun shine on the telescopic antenna. It is much lower in frequency than X-rays and would be picked more efficiently.

Get the idea?

Arie

Re: TinySA safety

#18731

This is what gets me worried:

?

"the +10dBm maximum input level is a limit in any RF frequency band, even if the tinySA is powered off. As an example, the tinySA will not detect a microwave oven (2.4GHz) on the screen but can be very well damaged by it. Similarly, other strong out of band sources won’t be detected by the tinySA, but can still induce enough RF power to damage the RF circuitry. ?With the telescopic antenna connected, susceptibility doesn’t depend on the tinySA being ON or OFF because the antenna will receive that powerful signal and will inject it into the spectrum analyzer, with serious risk of damage. ?Best practice is to not store or leave the tinySA in a strong RF environment (i.e. next to a cellphone or radio transmitter) with the antenna attached when turned off."

?

Which is why I was concerned about X-rays, which are just higher frequency RF.

?

Re: TinySA safety

#18730

from :
"X-rays have wavelengths ranging from 0.01 to 10 nanometers, frequency ranging from 30 petahertz to 30 exahertz"
: (3×10¹⁶?Hz?to?3×10¹⁹?Hz)?
(far away from input range of the TinySA)

Re: Tiny SA Ultra on TV show

#18729

the TinySA and also the nanoVNA are often used in TV series! I spotted a nanoVNA used to debug an alien RTX !!! the series was Roswell.

Re: Tiny SA Ultra on TV show

#18728

Hi Erik, and did they find them :-) ?If so you have to turn on the production to have enough in stock. You should be proud to see you own amazing product om TV thumbs up

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73 PD2AM André

Re: TinySA safety

#18727

开云体育

Geoff,

In the role I use the TinySA Ultra, it is constantly in the vicinity of inhibitors of varying strengths and so far they have had no impact on the system. Obviously I don't use the TinySA Ultra too close to the units but I believe that there should be no issues with them being subjected to x-ray machines. Just my experience.

Kind Regards,

Lee Johns

Show quoted text

From: [email protected] <[email protected]> on behalf of Geoff KE0BNX <geochaben@...>
Sent: 05 December 2024 00:10
To: [email protected] <[email protected]>
Subject: [tinysa] TinySA safety

?

I have seen discussions about high RF levels damaging the TinySA even when it is turned OFF. So I have to wonder when the TinySA is in shipment if it is being subjected to RF levels that could destroy it. For instance, X-Ray inspection of parcels. Is there a danger of this kind of damage during shipment?

?

Geoff

TinySA safety

#18726

I have seen discussions about high RF levels damaging the TinySA even when it is turned OFF. So I have to wonder when the TinySA is in shipment if it is being subjected to RF levels that could destroy it. For instance, X-Ray inspection of parcels. Is there a danger of this kind of damage during shipment?

?

Geoff

Re: Touchscreen calibration

#18725

Thanks for your help. I've only had it for a few days and bought it from the approved seller on Amazon. So I'm hesitant to start repairs on this new device, since I might actually damage it and make it non-returnable. So I'm going to exchange it for a new one. Perhaps, since this issue had been around for a while, it might be better to improve quality control at the factory in China? I suppose that's not possible, or it would have happened by now. I am very impressed with the Tiny SA, thank you for designing it.

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Geoff

Re: New TinySA Ultra calibration problem

#18724

No dispute needed. The HW is OK/

Something in the FW makes it fail, just try again and all should be OK when it succeeds.

Let me try to find and repair this annoying FW bug

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Designer of the tinySA
For more info go to

New TinySA Ultra calibration problem

#18723

Hello,
I bought a TinySA Ultra from Zeenko Store, and I'm having an issue. Calibration doesn't always succeed—it might pass once, but then fail several times after that. However, the self-test completes without any issues. The device is brand new, and I haven't connected anything to it yet. Should I open a dispute?

Tiny SA Ultra on TV show

#18722

Last night I was watching the TV show "The Curse of Skinwalker ranch" (Serie 5 episode 9) and they used de Tiny SA Ultra to find anomalies in the area.?

Re: Touchscreen calibration

#18721

This may help:

Open the case

Release the latch of the LCD cable

Carefully try to reseat the cable and close the latch

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Designer of the tinySA
For more info go to