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Re: Help ! Calling Ghostbusters.
How much metal is part of your home's costruction? Roof, exterior walls (metallized insulation, wire mesh under stucco, etc.), interior walls (are the studs wood or metal?), etc., etc. DaveD KC0WJN On Tue, Apr 1, 2025 at 04:22 G8HUL via <g8hul=[email protected]> wrote: >>I have a large home on a hill in a fairly isolated peri-urban area, which I wouldn't expect to be subject |
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Re: Input RF switch fault found on TinySA ultra
开云体育Hello. ? I don't know your soldering shills, but this definitely is on higher level. Forget soldering irons in this case. There are super-fine T12 soldering irons, but the size is still very small. Such parts are usually replaced by use of a hot-air reflow workstation, fine tweezers and a huge magnifying glass or microscope (for looking from bigger distance of 20cm or more).?? If you don't have that equipment, skills and a very steady hand, don't even try it. You can possibly contact a repair center for smartphones or laptops, if they would do an exception and replace the part, but I guess this will cost more than a new tinySA. And another thought:? Is it sure that _only_ this part is the problem and everything else is 100% ok? Otherwise you burnt money and still have a not working device. I talk from my own experience, I am not bad in reflow soldering, but I wouldn't touch that. Am Dienstag, 1. April 2025, 09:11:55 CEST schrieben Sie: > Based on the "fault finding" tab at tinysa.org ( > https://l.facebook.com/l.php?u=http%3A%2F%2Ftinysa.org%2F%3Ffbclid%3DIwZXh0 > bgNhZW0CMTAAAR2cSIhlkkxbkDzVcVvtqIq8v4xw9TAitngOiNPESHlhJhwvBopXUijC2xI_aem_ > auyC7fts-GLRVFjrACZsBQ&h=AT0MOG0yHNy_ltOKHUiQHDjJqBmA7dxZnSbs0lHlG1mgZK0GV-Q > CSbDEujtxji7d2-BBrLq3QfKJU4k30WF4wk2yzQeqDleo7UtWx3txE5uoRjR5QdRoDIq5ww-hw6q > T42Kzvod9_06a3kywLBOx_Uf89GzXXztetww&__tn__=-UK-R-R&c[0]=AT2FJKoKQPKKDfoy0bK > SvTFphlJXzXviJGcLtUyTxjYjK58ncIURXA3e1BjyNH8-FMIGjbdE70ykwz-e0mMrbGJqnwhV434 > PKPd5y_6AxhoiLkU-Qpdjmvixo9XwDiIcT2cjfaEaL3LDxIZWC2WWeGLvAdXNIIGvyd0Hfe7UGkN > SYn2X3pA3wDSTTaHc1-S7faKMUU33goZB2JGfqaZxLRwJ2eI3 ) , my SA ultra's input RF > switch chip U22 (AS179-92LF) has failed. This chip is so tiny it seems > there is not a soldering iron or tweezer small enough to replace it. It's > like a microscope-dependent repair! Has anyone had success with this > repair, or is it just smarter to buy a whole new SA Ultra? > > > -- ? mfg ? ? Ing. Rainer Hantsch ??? (Firmeninhaber) ? ------------------------------------------------- ?ING. RAINER HANTSCH - Hardware & Software ?Khunngasse 21/20 ?A-1030 Wien ?*** Austria *** ? ?Tel.: +43-1-7988538-0???? Fax : +43-1-7988538-18 ?Mobil: +43-664-9194382??? Signal-Messenger (kein WhatsApp) ? |
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Re: Help ! Calling Ghostbusters.
Within radio range of each other.What do you call close proximity ? Jeff |
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Re: Help ! Calling Ghostbusters.
madbrain
What do you call close proximity ? This is a 4600 sq ft home on 3 levels indoors. There are many smart bulbs outdoors as well. The devices are not all close to each other. There is a fair amount i can turn off, but without flipping breakers it's not likely go to much below 150 count.
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As I listed in my OP, the various devices operate in a variety of bands. They should not interfere with devices in the other bands. My theory is that some of them may have defective radios and interfere with bands they aren't supposed to operate in. I suspect this especially because many of the devices were bought used, not new. Some of the smartbulbs for example don't have working BLE, only Wifi, even though they are supposed to have both.
This makes them difficult but not impossible to setup. I have been removing these half working bulbs. But there could be other sources of EMI. There are 2 EV chargers, 70 solar panels, 70 micro-inverters. Any of them could have an effect on EMI. I am not an EE, and I just don't know to what degree and at what distance. I thought a tool like the tinySA could help map where interference might be coming from location wise at least , if not device wise.
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Re: Help ! Calling Ghostbusters.
It is most likely that your problem is that you are just swamping the spectrum with so many devices. You are just overloading the capacity. There will not be just one problem so a spectrum analyser will not help.
You cannot expect 500+ devices to work in close proximity to each other. They will block each other. You need to manage your expectations. Regards Jeff ________________________________________ From: [email protected] on behalf of madbrain Sent: Tuesday, April 01, 2025 09:53 To: [email protected] Subject: Re: [tinysa] Help ! Calling Ghostbusters. That's really impractical for the hardwired devices, which are many. Flipping some of the 50 breakers works, but cannot isolate a single device such as a switch or bulb.I can turn off power to entire lighting circuits, but not to smart switches or individual bulbs.?I'm posting here because I'm hoping there is a tool that can help me with pinpointing the source(s) of the issues. Can tinySA really not help ? |
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Re: Help ! Calling Ghostbusters.
madbrain
That's really impractical for the hardwired devices, which are many. Flipping some of the 50 breakers works, but cannot isolate a single device such as a switch or bulb.
I can turn off power to entire lighting circuits, but not to smart switches or individual bulbs.
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I'm posting here because I'm hoping there is a tool that can help me with pinpointing the source(s) of the issues. Can tinySA really not help ?
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Re: measuring spectrum of a single pulse not feasible with TinySA?
If you repeat the pulse and use MAX HOLD, the scanning will eventually capture the generated fundamental and harmonics.
Depending on the duty cycle of the generated output this "eventually" may take a long time.
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Designer of the tinySA For more info go to |
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Input RF switch fault found on TinySA ultra
Based on the "fault finding" tab at , my SA ultra's input RF switch chip U22 (AS179-92LF) has failed. This chip is so tiny it seems there is not a soldering iron or tweezer small enough to replace it. It's like a microscope-dependent repair! Has anyone had success with this repair, or is it just smarter to buy a whole new SA Ultra? |
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measuring spectrum of a single pulse not feasible with TinySA?
I want to measure the frequency spread of a single pulse arising from capacitor discharge into a coil, but it sounds like from the discussion here on measuring radar pulses that this will not be feasible with TinySA. The sweep rate is too slow (?) I can guess what the fundamental frequency ought to be based on the LC formula and fish around that area in zero span mode (?), but I'd really like to see what kind of harmonics are contained in the pulse and what their relative amplitudes are compared to the fundamental.? Any ideas besides having to spend thousands more on another spectrum analyzer?? |
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Re: Help ! Calling Ghostbusters.
I think that is your problem!!!!I have a large home on a hill in a fairly isolated peri-urban area, which I wouldn't expect to be subject Turn every thing off and test each system in isolation. Regards Jeff |
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Help ! Calling Ghostbusters.
madbrain
I have a large home on a hill in a fairly isolated peri-urban area, which I wouldn't expect to be subject to massive interference.
However, I also have >500 electronic devices, either plugged-in, on battery or hardwired.
Many of them wireless devices, and are experiencing intermittent connectivity problems, on all kinds of frequencies.
I know that after living 15 years in this haunted house, I am long overdue for the purchase of an EMI detector. I am trying to figure out which to get, and how to use it. The tinySA Ultra seems like it might be up to the task, but I'm still not sure how I would proceed with the investigation.
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Here are some of the devices/bands I experience problems on.
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- Various frequencies - smartphones cell networks have never worked properly indoors with any operator, despite the coverage map. They work in some outdoor locations but not others. This is probably on the operators just lying through their teeth with their coverage maps, and not interference. But our current phones dance alternately between no signal, GSM, 2G, 4G, LTE, 5G. It's essentially impossible to make any cell calls and not have them drop. We have to use Wifi calling.
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- 2.4 GHz / 5 GHz Wifi devices have lots of problems, especially 2.4 GHz IoT devices. The 9 APs are Ubiquiti Unifi. Two of them are wired, 7 meshed. Many clients don't connect for a long time or at all, a bunch connect to very distant APs, some have elevated packet loss, and some have very high ping times - I have seen as high as 10 seconds. There are now about 300 total Wifi 2.4 GHz clients with the recent addition of 220 Philips Wiz bulb in the last few months. I don't currently have any 6 GHz APs (Wifi 6e/7). I have a couple 6e capable clients (one phone, one laptop). There are only 9 5 GHz clients in the house - two phones, two laptops, two Raspberry Pi 3B+ used as controllers for my 2 Carrier Infinity HVAC, and 3 Enphase solar gateways.
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- 1.9 GHz - Panasonic DECT 6.0. This generally works pretty well, but the handsets sometimes don't connect to the base when pressing "Talk", and needs to be put into OFF mode and back ON . Likely a device bug, but I have only seen it happen with distant handsets, and not the one in the room closest to the base, so I can't rule out interference completely.
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- 923 MHz : Yolink devices sometimes lose connectivity, especially distant ones. That's the case intermittently for the water leak sensor at the bottom of one of my water heaters, for instance. And the door and temperature sensor in my garage freezer. My other 12 Yolink devices work very well. But I'm not adding any more until they have a local hub.
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- 912 - 920 MHz : my 30 Z-Wave LR devices have many problems. Many nodes go "dead" frequently in Home Assistant/Z-Wave JS UI and randomly become unusable. Some are distant, but others not so far. I have switched every single LR device to non-LR so the devices don't lose signal altogether.? The traditional Z-Wave mesh seems to work much better (or not as bad, see below). This could be device bugs due to LR implementations still being relatively recent.
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- 908 MHz : Z-Wave non-LR devices often have very long reaction time as well. Again, I have seen 10 seconds response time, just like for Wifi devices.
Unfortunately, there are also lots of outright transmission failures, especially when communicating with several devices consecutively, such to turn off all light switches in the house. Many switches don't turn off, and require a second attempt. Currently, there is a total of about 70 Z-Wave devices.
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- 433 MHz : Simplisafe v3 . I have one distant door sensor and keypad that randomly drop out of range of the base station. All 3 are stationary, and I don't quite understand why this happens. I could relocate the keypad, but can't relocate the door sensor. There are not many options for me to relocate the base that won't cause other devices to go out of range. I'm looking for some kind of wall or ceiling mount for the base station in order to improve this, but there is nothing available off the shelf. There are about 20 Simplisafe devices. I wonder if something else is interfering that could be moved./removed.
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If I had to sum it up, wireless signals just don't work reliably in my home overall. The only wireless signals that I don't believe ever failed are some Safeguard ERA-DCRX and ERA-VPRX doorbell transmitters that operate at 433 MHz.
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So, my questions are :
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1) is the tinySA Ultra device suitable to pinpoint the source of all these wireless issues ?
2) is there any guide that I could read about how to proceed with the use of the device before purchasing it ? Preferably in written form, not video.
3) has anyone else previously been in my shoes, and been able to resolve most or all of these problems ?
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Re: Would like to report a new fake chinese hardware for TinySA
Erik (and others I've told to watch out for),
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Let me explain my situation more - as it seems that I need to talk about this...
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I was looking for a RF spectrum analyzer on Amazon and I found one which seemed to be reasonably priced, so I bought it (as anyone else would).
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But when I received the item and read the manual - I started to get red flags.? Not going to mention those here, in public (Erik - if you want to know the details please DM me).
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That was when I realised it was a fake clone of REAL hardware and software - so I researched it and the TinySA project came up.? I was NOT aware of this project before, if I knew earlier - would have purchased from an "official" source.
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Hence, why I wanted to report this clone.? I JUST wanted to help.? And NOW, I can see why you ONLY give official sellers.? But at the start, I didn't know.
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Hope this helps. |
David J Taylor
Roger Need
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