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14 votes

Why does USB 3.0 interfere with 2.4GHz devices?

It boils down to basic shielding and radio interference issues since USB 3.0 creates “noise” in the 2.4–2.5GHz spectrum. From a white paper titled “USB 3.0* Radio Frequency Interference on 2.4 GHz ...
Giacomo1968's user avatar
  • 55.7k
10 votes
Accepted

It's almost impossible to avoid the overcrowded wifi channels

Speaking as a wireless network admin, the short course on 2.4: In most of the world, there are only 3 2.4 GHz channels you should ever use: 1, 6, 11 All the rest of them overlap - the idea that ...
Ecnerwal's user avatar
  • 5,254
9 votes
Accepted

Different ssid on the same channel

It's probably routing a guest and private network - this is fairly common. There is an impact, but this can be managed, and it's better for the router to use the same frequencies rather then ...
davidgo's user avatar
  • 70.8k
6 votes

Does putting a wireless router in a wooden box make the WiFi signal weaker?

There is an informative paper written in 2002 by Robert Wilson, a graduate student at the University of Southern California. The paper is called "Propagation Losses Through Common Building Material 2....
Jerry Penner's user avatar
5 votes

Does sticking a router in a box diminish wireless range?

As far as box materials, PVC or ABS would be fine. Polyurethane is one of the best. It's commonly used for radomes because it is durable, low cost, and fairly transparent (https://www.generalplastics....
VoteCoffee's user avatar
3 votes
Accepted

What is causing high-pitch noise over Bluetooth signal.

So I've dealt with this issue for a while and found a way to "solve" the problem. To recap the issue, I hear static/buzzing when I am listening to sound on my laptop via any bluetooth device. My ...
AnotherDeveloper's user avatar
2 votes

Different ssid on the same channel

Having it transmit and receive on several different channels would either result in abysmal performance (as the transmitter and receiver are switching frequencies) or much higher expense, as multiple ...
Mokubai's user avatar
  • 92.8k
2 votes

How to avoid Bluetooth interference between headphones and mouse?

I found the solution to my problem. Devices: Laptop: Surface Book 2 i7, Win 10 Pro x64 Mouse: Logitech MX Anywhere 2 Earphones: Jaybird X3 & Bose QC35II When my headphones connected to my ...
VAS007's user avatar
  • 21
2 votes

What is causing high-pitch noise over Bluetooth signal.

So something super simple to check is 1) has your power plug/ extension cord come loose from the wall socket??? and 2) move your computer power supply FROM an extension cord TO a direct wall socket.......
Emily's user avatar
  • 21
2 votes
Accepted

Router interferes with mouse and keyboard

They use the same frequency range, so interference is not that surprising. Try moving the router and all antennas around a bit, often a few centimeters can change the situation, because of the ...
dirkt's user avatar
  • 16.9k
2 votes
Accepted

Can Poor Wireless Performance at High Traffic Volume be resolved by high-end router?

To clarify: If the second router is connected to the first router via WiFi, then the second router is acting as a repeater, and not an extender. This will typically halve your available wireless ...
Dennis Mungai's user avatar
2 votes

Am I broadcasting or what?

Stumbled almost accidentally on "How to Permanently Remove Microsoft Wi-Fi Direct Virtual Adapter" at woshub.com It turns out that I had hosted network running by default. Following ...
მამუკა ჯიბლაძე's user avatar
1 vote

Something is interfering with my WiFi connection on my laptop. Is it the dedicated GPU?

From your description, it seems the power plan settings need to be changed: Plugged in, GPU not heavily laden, WiFi works well, ping = 16 ms Heavier GPU work ping jumps up to 1 second Charger ...
DrMoishe Pippik's user avatar
1 vote

All Wi-Fi channels experience interference at a periodic rate for several seconds causing very poor internet

Wideband wireless interference wide enough to disrupt both 2.4GHz and 5GHz spectrums would be very rare in my opinion. It could potentially be malicious activity by someone using a wideband RF jammer, ...
Appleoddity's user avatar
  • 11.8k
1 vote

Audio sounds muffled/muted - but not all of it

Following the hint from @Mokubai, I opened up pavucontrol, and looked at the 'Configuration' pane. My "Built-in Audio" entry said: "Analog Surround 5.1 Output". Well, I don't have ...
einpoklum's user avatar
  • 9,513
1 vote

Can removing certain IO shield tabs cause enough EMI to disrupt WiFi signals?

Yes, holes in your PC's EMI shielding can let EMI leak out. This can be enough to interfere with your PC's Wi-Fi reception and any devices within half a meter or so. It probably wouldn't be enough to ...
Spiff's user avatar
  • 105k
1 vote
Accepted

Am I broadcasting or what?

For more "settle" solution (if the "problem" is being caused by Windows's "mobil Hotspot"): Check if the "mobil Hotspot" is turned on (Settings -> Network -&...
Albin's user avatar
  • 10.6k
1 vote

How could a USB wireless adapter, interfere with your video display (causing colorful 'static' despite Windows still running)?

Every digital device uses radio frequency signals, especially anything wireless; that's why the US FCC requires their approval on any PC device. If the USB Wireless adapter had a defect, it could ...
K7AAY's user avatar
  • 9,643
1 vote
Accepted

C270 webcam + LED ceiling light + zoom = luminosity wave pattern

(Thanks goes to Tetsujin for suggesting the appropriate course of action.) The problem is, as you suspect, due to the electric power line frequency to your home: 50 Hz. In fact, the relevant OS driver ...
einpoklum's user avatar
  • 9,513
1 vote

Dual 4g modems for better (shared) internet?

Networks are designed to be fully utilized without problem. Fully utilizing your 4G link should never cause ping spikes. If it does, it's a pretty good sign your 4G modem is garbage at controlling its ...
Spiff's user avatar
  • 105k
1 vote
Accepted

how to manage multiple wifi access points without interference

Yes, APs on same same channel will interfere with each other in the sense that if they are close enough to each other, only one sender can use the channel. The other access point (and other stations ...
dirkt's user avatar
  • 16.9k
1 vote
Accepted

Roccat Kone XTD mouse may spontaneously disconnect when devices attached to the computer are manipulated

I've determined that the problem is not my mouse, but my laptop. I've been having ongoing issues with USB 3.0 storage devices disconnecting while transferring data. Longer cables are more susceptible ...
bwDraco's user avatar
  • 46.1k
1 vote

How can I stop WiFi from causing interference with AM radio?

The problem may well be the access point's power supply ("wall wart" or "power brick"). Almost all modern power supplies are switch-mode power supplies (SMPS) and if improperly designed or shielded ...
Jamie Hanrahan's user avatar
1 vote
Accepted

Headset causes RF interference

I solved this issue by letting the receiver be like 10cm away from the device
Jason's user avatar
  • 323
1 vote

Identifying need & validating Shielding & Shielded components for a Gigabit GbE or 10G Ethernet networks in a factory/ workshop environment?

To determine if it's shielded it's easy: it's written on it. From meter to meter, it is written on the cable either UTP or FTP, F/UTP STP. If it's STP/FTP. F/UTP, it's shielded, if it's UTP, it's ...
Overmind's user avatar
  • 10.1k
1 vote
Accepted

Ghost image of Monitor 1 in Monitor 2 with wound together VGA cables

It's a well-known phenomenon, known as Induction [Electromagnetic induction to disambiguate] In short, any alternating current passing through a wire will generate a magnetic field, alternating at ...
Tetsujin's user avatar
  • 49.6k
1 vote

It's almost impossible to avoid the overcrowded wifi channels

All the Wi-Fi equipment that I have seen does not have the option to disable carrier sense, or otherwise disable the feature to avoid causing interference to other nodes by waiting to transmit while ...
Alex Cannon's user avatar
1 vote

What is causing wireless mouse reception issues?

Antennas are a highly complex subject and it can be very hard to know what's going on with a particular setup. I am far from an expert on radios, but from what I understand: Antennas create EM fields ...
Xunie's user avatar
  • 337
1 vote
Accepted

Wireless connection dies when cordless phone rings?

You can change the channel in the web interface of your router. Read your router documentation for details. Don't be afraid to change it, you can't brake anything. However, cordless phones ...
dirkt's user avatar
  • 16.9k

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