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  1. Replies
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    Very hard to say exactly but it looks like some...

    Very hard to say exactly but it looks like some sort of audio or video transmitter perhaps. My advice would be to use the directional antenna to hunt it down.
  2. Thread: Dissappointed

    by svosper
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    That says to me that it does exactly what it says...

    That says to me that it does exactly what it says on the tin.

    Other networks that may be on your channel is only half the story. Many other devices use the unlicensed ISM and UNII wireless bands....
  3. Thread: Dissappointed

    by svosper
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    Not sure why you are disappointed. inSSIDer is...

    Not sure why you are disappointed. inSSIDer is not a WiFi magic wand. You would have done better to research exactly what inSSIDer is capable of doing before setting your expectations so unreasonably...
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    If you can put up a list of your nearby networks...

    If you can put up a list of your nearby networks we could suggest a channel to use. Sadly wifi channel spaces in the 2.4GHz space is limited and very well used in most places now. The best you can do...
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    Snadge Here is some WiFi maths for you: ...

    Snadge

    Here is some WiFi maths for you:

    Through put is around 40-60% of your data rate with wifi. So a single wifi client connected at say 150Mbps will actually get around 75Mbps of TCP/IP...
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    From what I know Zigbee only requires 5MHz of...

    From what I know Zigbee only requires 5MHz of channel space per channel and uses DSSS, so it should not be causing issues across the whole band.
  7. Thread: A Messy Clinic

    by svosper
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    Andrew This is very interesting. I am...

    Andrew

    This is very interesting. I am currently surveying a large hospital and I am seeing the same sort of interference signature. I have a post in this section recently with my chanalyzer file...
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    ok i've looked it up and it seems to be some sort...

    ok i've looked it up and it seems to be some sort client/AP/bridge. I'm not entirely sure how this would work or indeed if it would work with inSSIDer so i will leave this one to the experts
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    Eh??? You connected the 802.11a hardware to your...

    Eh??? You connected the 802.11a hardware to your computers Ethernet port???? That doesn't sound right to me but i'm happy to be corrected. What is the hardware you have connected?
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    24GHz spectrum interference. Outside

    Hi Everyone

    I am currently carrying out a survey of a large hospital in the centre of the London. When I move right to the edge of the building I see this interference right across the 2.4GHz...
  11. Looks like maybe some type of AV equipment. If...

    Looks like maybe some type of AV equipment.

    If you attach the WiSPY Directional Antenna to your WiSPY adapter you can use it to hunt down the offending devices.
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    Channel 11 will be seen down as far as channel 8....

    Channel 11 will be seen down as far as channel 8.


    FYI running InSSIDer will severely degrade your network connection as the software uses your wireless LAN device to go off and probe other...
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    chobo 2 Looking at the inSSIDer screen shot...

    chobo 2

    Looking at the inSSIDer screen shot that you have posted up, it looks to me like the clearest channel for you to use will be channel 11. Looking at your picture I see a network called...
  14. If you post up the saved .wsx file we can play it...

    If you post up the saved .wsx file we can play it back in chanalyser and look at which ever channels we need to

    Thanks

    SImon
  15. InSSIDer uses your WiFi card to go off channel...

    InSSIDer uses your WiFi card to go off channel and send probes on all other channels in order to get details of the wifi environment. Because it has to go off the channel you are using it will...
  16. Looks rather quite on the wireless front to me....

    Looks rather quite on the wireless front to me. Can you post the chanalyer file so we can watch it in real time please?
  17. Looks kinda like a standard 802.11b DSSS...

    Looks kinda like a standard 802.11b DSSS transmitter to me
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    Great thread Mike. I am watching with great...

    Great thread Mike.

    I am watching with great interest as this is a problem I see a lot, but there is not a lot of guidance or information on this issue. I also do a lot of surveying for RTLS...
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    Sk3l3tor It would be easy to interpret if you...

    Sk3l3tor

    It would be easy to interpret if you could post up an image that is coloured by utilization instead of amplitude. Thks
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    Hey I have no experience with OFDR so i...

    Hey

    I have no experience with OFDR so i couldnt comment. Devices transmit at 802.11b speeds or 802.11g if you have mixed mode enabled. ERP-OFDM is just normal 802.11g wireless. ERP-OFDM is the...
  21. "Dual Stream" would mean that its capable of 2...

    "Dual Stream" would mean that its capable of 2 spatial streams. This is part of the 802.11n suite that allows higher data rates. As these guys have said before me, 802.11n is basically some MIMO...
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    Hi Smadge So the main difference to understand...

    Hi Smadge

    So the main difference to understand with Co-Channel and overlapping channels is this:

    Co-channel interference is not really what you would call interference (its more like...
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    Joel Would it be correct to say that this...

    Joel

    Would it be correct to say that this interference is at an amplitude that is unlikely to cause any real harm to your network?
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    *******bump******** anyone?

    *******bump******** anyone?
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    Does RTLS not just use ERP-OFDM (2.4GHz)? Would...

    Does RTLS not just use ERP-OFDM (2.4GHz)? Would it not appear as any other 802.11 device in 2.4GHz if the client device is to be understood by 802.11 APs. I may have misunderstood the technology of...
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