The intensity of the signal - dBm calculation?

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• ConfigFree does not show the intensity of the signal

  ConfigFree works properly - except that the Wifi strength is displayed at the highest level for all sources, regardless of how effective. (as it is deducted from the source location and the signal strength indicated by the utility windows)
  I.e. all access points are on the inner ring.

  I am running Vista on a Portege M400 with Configfree version 7.0.0.24 and Intel 3945abg driver 11.1.0.86. I got the Intel proset utility loaded, but they would not show the signal strength at all. So I unloaded it.

  I tried rolling back the drivers for the driver Wifi and Configfree with no change in behavior.

  Any suggestions at all would be welcome.

  Rod Laird Australia

  Hello Rod

  I use Vista on my Satellite last Vista designed ConfigFree utility, but I never noticed the signal WIFI is displayed there. Can you please explain exactly where this signal must be shown?

  When connected to WIFI, you can see the small symbol in the task bar but this symbol belongs to Vista and the symbol of the strength of the signal is also visible in Vista network and sharing Center.

  Sorry but I do not see this symbol in Configfree directly. When my laptop is connected to WIFI all I see in ConfigFree is connected (blue) status and the connection between PC icon and black (marked as G) WLAN. It is also interesting that the small blue animation moves along that black line.

  All that s!

• How to restore (the intensity of the signal) wireless network status icon to the toolbar

  I inadvertently deleted the icon status of wireless network (signal strength) (the signal strength of the bars as ATT) of my toolbar. I would like to add back. I checked the internet and found the answer. Instructions on how to do would be greatly appreciated.

  An update the program brought back wireless icon.

  PROBLEM SOLVED

• Could use a simple tutorial on speed c. the intensity of the signal

  I have been struggling with a problem wireless for a few years now.  We have added a room to the patio at home and spend some time especially in the winter.  Throughout the House, it is the only place where it is difficult to get and maintain a connection.

  I have some knowledge of basic home wireless (how to configure the router, etc.) and did basic things like change the channel.

  My most recent move was to install N.  I now try a WRT610N and will also try an Extender (WRE54G).

  I'll do some tests in three places in the House: one in the patio room, one in place, we now sit to connect and one right next to the router.  My thought was to record that the two speed and strength of the signal, but I realized that I'm not sure of the difference and who I am looking to improve.

  A test last night in the patio room showed several unsuccessful attempts to connect.  Looked like to the signal strength was weak and the speed was 7mbps.  It is a N adapter.

  This morning at the place, we are now sitting to connect, I was getting very good resistance and it varied between 29 and 59 Mbit/s.

  I did a quick check of my speed of cable (via CNET utility) that showed slightly more than 1.5 Mbps (if I read things).

  If anyone has some thoughts on how to test it to determine the best solution, I would appreciate it.

  BTW, I guess there is no N-extender available (i.e. WRE54G is).

  Thank you

  LIV

  gmd024 is right. Well well with router WRT610N WRE54G will not work. If you want to work on your patio room wireless, then you can think WAP4410N, you define WAP4410N as in a Repeater Mode, so it can work as an amplifier and your computer in the room from Partio will be able to go online wireless...

  Otherwise, you can run an Ethernet cable from your main router at the room Partio.

• App to determine the "Signal strength" airport

  I have 1 Airport Extreme Base Station (5th generation) in my house.

  I have a 2nd Airport Extreme Base Station (also 5th generation) in a separate building in my back yard.

  The 2nd airport is connected to the airport 1 via an Ethernet Cable that runs through an underground conduit.

  I'm sure I used to have an App on my iPhone that would check the 'intensity of the airport Signal' as opposed to the 'speed '.

  Maybe it was on my old iPhone 4S & it was never transferred to the iPhone 6 Plus?

  Whatever it is, I can't seem to find the app anywhere.

  Does anyone have an idea on what this app can have been called or who made it?

  Any help would be greatly appreciated.

  iOS does not allow access to the wifi signal measures last I checked...

  However, I can recommend the app Netspot (PC/Mac friendly) to measure the signal wireless throughout your home.

• Why is the signal to my airport express base station weaker?

  My airport express base station to base station (part number MC414LL/A) has worked well for the first 3 years, but now has a weaker signal is no longer covers the apartment. The location has not changed and we have not added all of the devices that could create interference.

  Any help would be appreciated.

  Bill

  3 years... average... is on when the internal of food inside the Express starts slowly the head downhill, so maybe it's a factor here.

  If you don't have already done, power off the AirPort Express for a few seconds, then put it to the top. When you start the Express, it will automatically scan all channels use wireless sector and select the best channel to use both.  If you live in a crowded environment, you may have to restart the AirPort Express on a regular basis.

  If there is no improvement after a few reboots of the Express, on what you can do at this point is to reset the device back to the default settings and then set up again to see if a new beginning offers some improvements in the intensity of the signal.

• How to calculate the signal / noise from the graph?

  In my current project, I read a periphera voltage signal. the signal lead noise even after filtering.  So, to identify the necessary data, I averaged the signal.

  I have attached the file with an image of graphics. In this graph, the recorded data are drawn black and medium online graph is plotted in red. Now, I have to calculate the ratio of signal to noise to specify with these peak values. How to do?

  As the signal passes through zero, be careful in the way you set the signal / noise.  For sinusoidal signals, that ratio is defined as the RMS value of the noise (the signal with the desired sinusoidal signal deleted) divided by the effective value of sinusoidal component.

  First of all I would like to subtract the average value of the raw signal.  The difference is the noise.  You can set the signal / noise.  A RMS calculation might work.  If you have a mathematical model for the desired signal, a fitting for this model can be useful too.

  Lynn

• PC lacks resources to process the signal of 1 MHz. What do I do?

  Hello!

  I created two FM demodulation algorithms in LabView (I have LabView 7.1)

  Now, I want the two test methods.

  I calculated the proportion of real parameters of the FM signal: carrier frequency, frequency of message and frequency deviation.

  I run the FM signal with parameters:

  Sampling frequency: 5 MHz

  Frequency: 1 MHz

  Message frequency: 2 kHz

  Frequency deviation: 7, 5 kHz

  Amplitude: 1

  The problem is - my PC can't handle this insane amount of data.

  I don't know, but VI is running very very slow, it looks like it's stuck.

  My PC is:

  1.6 GHz AMD (kernel)

  512 MB DDRII RAM, bus 333 MHz

  The overall objective must be capable of handling nearly original FM radio signal (with carrier around 100 MHz, message - deviation of 75 KHz and 20 KHz)

  I understand that, for the signal, there should be about 5 samples per period.

  But treatment 100 MHz signal - requires unreal performance.

  How to deal with this problem? Should I downconvert my signal or use other techniques any?

  Any help and suggestions are very appreceated.

  Absolutely! downconvert instantly when you acquire your signal to reduce memory needs.  Or better yet Downconvert in the material before the acquisition of the signal and you should be able to handle the data in near real-time.

• The difference between the strength of the signal and quality?

  Hi all

  According to the Cisco documentation

  Low RF signal strength does not mean the lack of communication.

  The quality of the signal is low means poor communications.

  If someone can explain to me the difference between the power of the signal and the quality of the signal?

  In accordance with my AP home I see that this signal strength is measured in numbers like 50% or 100%.

  But what is the quality of the signal and how to measure me?

  Thank you

  Mahesh

  Big question...

  First, let's look at the notion of signal quality and strength... Suppose for a minute you're front row at a rock concert right next to the speakers. Sound is loud, you can't hear anything else that scream. It is an example of a strong signal but poor quality.

  As for the signal and the noise of measurement or should we say quality of signal. Providers sometimes give you a % or dB scale when ranking signal. You can't really do headers or tails of the % scale because each vendor has % different measures. But check your access point, because you will be able to change in dB.

  Look at dBm. At the moment my client shows:

  Signal - 59 dBm

  Noise - 98 dBm

  The dB scale is simple. More PB the STRONGEST signal. You'll see - 59 of the signal is good, in fact, I'm about 50 feet from the AP. If you are under the ap you will get as a - 30ish. Noise, we do not want to be noisy, if we want to see the noise to-100. More low is the dB of noise as loud noise.

  So we're back out the example above. Next to the speaker, you're showing tell - 30dBm, but your noise can be as - 70dBm...

  Does make sense?

  Normally, you want to see your signal not exceeding 67 - not for voice or - 76 for the data. And your noise should be greater than-90.

• bi weekly loan using the HP 10bII calculator payments +.

  Hello

  Can someone explain to me please how to calculate bi weekly loan using the HP 10bII calculator payments +.

  Here is an example from real life:

  5.49% annual interest rate,

  loan of $35420,33,

  6 years,

  the payment should be $266,74,

  but I don't know how to do this.

  Thanks for your help.

  Andrew

  Hello

  Weekly payments = 26 paid annually.

  26 the value paid per year:

  26 OrangeShift P/YR (on PMT key)

  Now enter data & colon;

  5.49 press I / YR

  -PV-press 35420.33

  26 * 6 = press N (26 payments per year * 6 years, the result, 156 will be stored n)

  0 press FV (just to be sure that FV is set to 0)

  Now press on PMT and it will show 266,74

  Don't forget P/YR will remain at 26 until you enter a new value or reset the calculator (clear all does not reset it, but will remind you the current value).

  HTH

• 40TL933F - lost the signal while turning on Xbox or ADSl box TV

  Hello everyone,

  I just bought a 40TL933F yesterday and I watch TV via an antenna: everything is good, but when I turn my xbox or my router, the signal is lost. He then reappears when I turn my xbox.

  Does anyone have an idea to explain and fix it?
  Thanks for your answers,

  Socrate25

  Would it be possible that your TV will automatically switch to the channel where the Xbox is connected?

  I have another TV and something similar happens to me if I turn on my blue ray player.
  The TV detects the blueray drive and will automatically switch to the HDMI port where is connected the BD player.

• Apple Watch heart rate monitor, the signal can be shared with other devices such as the Garmin Edge 520?

  Apple Watch heart rate monitor, the signal can be shared with other devices such as the Garmin Edge 520?

  Hello

  No, that it is not currently possible.

• Qosmio G30-220: HD-DVD via HDMI - error message Impossible to export the signal

  Hello

  When I play a HD-DVD on my G30-220 LCD_panel, it works like a charm (with the Toshiba HD - DVD player software).

  When I switch to dualview to export the signal through HDMI to my LCD TV (HDCP), I get an error message:

  ' Cannot implement the signal. Please switch to the internal display "(this is not the exact English message. I get the error message in Dutch and I've translated).

  Hello

  As much as I know the dual display is not possible. Either watch you on LCD display or on the TV. The two of them at the same time will not work. Reason because it's the protection against copying, and also because of very high data transfer.

  I tested it with Qosmio friends on my LCD HD-ready TV.

• Have signal via Qosmio player, but failed to retrieve the signal on WMC

  I have to be halfway there, but after connecting my NTL cable box to the Qosmio and who received advice to get my signal through the reader and the F2 key, I can't then the signal in Windows Media Center.

  As I am only interested in recording TV shows, I really need find a signal through WMC. Please can someone help I think I ever recover calls promised from the technical support line. Oh, I followed all the instructions, but the analysis through Windows Media Center does not give any signal.

  ADMISI,

  Exactly how do you connect your NTL cable box to your Qosmio?

  Willow

• My Toshiba 22EL833G ceases to receive the signal from my Satellite U300 - 13H

  Hello

  When I connect my laptop to the TV and turn it on, I first receive signal at the entrance to loading windows, but when it comes to enetring my password, stops the TV receives the signal. I'm sure that problem comes from the TV as when you use another screen, everything is ok.

  Does anyone know what I can do?

  Thank you all for your time

  Hello

  What password do you mean exactly?

  If you think the troublemaker is your TV then you're in big trouble.
  Why? Because there's not a lot of parameters that could be changed.

  You must ensure that you use HDMI right channel (I assume you are using HDMI connection). From my point of view, it is one and only parameters that must be set for television.