12,494 reputation
104582
bio website andrejako.users.sourceforge.n…
location Belgrade, Serbia
age 25
visits member for 4 years, 2 months
seen 4 hours ago

I'm electrical engineering student specializing in computer networking.

I'm also an amateur radio operator, callsign YU1NKA.


Apr
26
comment I have to cycle my LCD monitor's power on and off to get it to stay on
@Sampo Sarrala Anyway, my point is that learning how to solder just in order to save money on capacitor repair is false economy. On the other hand, if someone is already in electronics, then it's not as problematic because the basic foundations will already be there.
Apr
26
comment I have to cycle my LCD monitor's power on and off to get it to stay on
@Sampo Sarrala Then we have the problem of iron being fit for the job of working with the capacitor: Too powerful and non-temperature controlled as well as too weak can result in damaged PCB. Next, there's the knowledge needed to pick and install a replacement capacitor. Again, getting a capacitor from eBay or similar source can be problematic and it takes some experience to find a reliable distributor of safe capacitors.
Apr
26
comment I have to cycle my LCD monitor's power on and off to get it to stay on
@Sampo Sarrala I wholeheartedly disagree with such comment. I don't think it's safe for someone who doesn't already have experience using soldering iron to attempt to replace capacitors. First problem is the iron itself. A beginner won't be able to see difference between dx.com junk that will catch on fire and dx.com junk that won't catch on fire. Next, there's some training that's needed in order to be able to actually desolder a capacitor from a PCB without damaging the PCB itself. Lifted traces aren't going to make repair any easier.
Dec
12
comment Can anyone explain to me what happened to my flash drive?
Looks like this was it. I just wasn't paranoid enough with the flash drive.
Dec
12
comment Can anyone explain to me what happened to my flash drive?
Yeah, it's been so long since I used a public computer that I completely forgot about possibility of malware running on it.
Dec
12
comment Can anyone explain to me what happened to my flash drive?
@Gotschi I'm sorry, I meant when I use the shortcut.
Nov
8
comment Is there a limit to how many separate wifi networks can successfully and securely operate within a given (building) area without interference issues?
This takes care of interference problems, since in such setups lightweight access points would be aware of eachothers's signal and using the control point can be adjusted to reduce their own transmit power so that the interference is minimized. If you have a large area which you yourself can administer, that can work well. If you can use 5 GHz, it can work even better due to larger number of channels and worse propagation on that band resulting in less interference.
Nov
8
comment Is there a limit to how many separate wifi networks can successfully and securely operate within a given (building) area without interference issues?
What I've seen used the most in such setups and with most success is the use of sort of light weight access points that are connected together over wired Ethernet. They are then connected to a central controller from which the network can be administered. In the older systems, you'd place a hexagonal honeycomb-like structure over the floor-plan and then set a frequency and power for each cell, so that adjacent cells have different frequencies. Today, smarter systems can do that on their own.
Nov
8
comment Is there a limit to how many separate wifi networks can successfully and securely operate within a given (building) area without interference issues?
Anyway, what I find very strange is the term WAP-Repeater. It's pretty ambiguous (but I could be wrong). It can mean a wireless range extender that just picks up existing signal, amplifies it and re-broadcasts it, but those work on the garbage in, garbage out principle and are in general very bad. The other option would be a more active device which actually does some processing on the signal, but still those are pretty bad as well, since they usually rely on transporting actual consumer data over WiFi, which takes up bandwidth.
Nov
8
comment Is there a limit to how many separate wifi networks can successfully and securely operate within a given (building) area without interference issues?
I personally don't like this question. There's much stress on the importance of fixing the issue (which is understandable) and the scale of the issue, but there's no information about the equipment used, there's no information about any type of band planning used, no diagrams of logical of physical connection between units, so there's very little that can be done at this point to help solve the issue other than some very general explenations.
Aug
22
comment What settings to use when making 7zip files in order to get maximum compression when compressing PDFs?
@Cole "Cole9" Johnson Well the difference is that in my case I used some "other" tools from PeaZip that did not have a GUI at the time. If I remember correctly back then only PeaZip offered PAQ8O algorithm with a GUI.
Jul
4
comment How do I clean up COM ports in use?
Looks interesting! I'll try it out and report the results.
May
2
comment USB 2.0 device on USB 3.0 Power and Data Bandwidth
There is a difference in USB 2 and 3 cables. The cable's characteristics are different and it has more pins, so you should use USB 3 cable to connect USB 3 hub to USB 3 port.
Feb
4
comment I'm getting repetitive left click in java applications
@Karan That solved the problem. Post the procedure as an answer or is it's a duplicate vote to close.
Feb
4
comment I'm getting repetitive left click in java applications
@Karan Now that you mentioned uninstallation... I've noticed that programs which ship with their own integrated JRE run fine. Maybe there are some traces left that I didn't pick up.
Feb
4
comment I'm getting repetitive left click in java applications
@Karan The problem seems to start after first mouse-click in the Java application. Also just in case my mouse decided it hates Java, I did try with another mouse and touchpad and they seem to hate it too :).
Feb
1
comment Why aren't there PCIe RAM expansions?
Note: Almost no PC have PCI-X. It was only found in server market and tops out at around 1 GB/s. Furthermore it's obsolete. It was development based on classical PCI and is not related to PCI Express (often abbreviated PCIe).
Jan
25
comment How suitable might my loft/attic be to install a network router and switch?
@Neil Barnwell Do note that although routers have processors that heat up less, they usually have little or no cooling provisions. For example, my room temperature is right now 23.3 C and the temperature inside my router is 43.1 C. Temperature of the system on a chip will be even higher than that and it could easily go uncomfortably high in the summer.
Jan
18
comment Why won't my Nokia E52 charge on some USB ports
@Juha Untinen Combined with high resistance of the cable (which can be surprisingly high! I've had cases of as much as 0.7 V drop on a USB cable), it could result in a voltage that is too low for the phone to start charging.
Jan
18
comment Why won't my Nokia E52 charge on some USB ports
@Juha Untinen After experimenting with USB ports on laptops (which often provide voltages on the bottom part of acceptable range) and thin cables often used for USB A to micro USB B cables (and I guess many small proprietary connectors), the only only thing that comes to my mind that could explain the behavior is that for some reason, there is a small difference in output voltages between USB ports under load.