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WIFI Range

Old 06-22-05, 07:33 PM
  #26  
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Saw an NEC PCMCIA 11.g for about $30.
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Old 06-22-05, 07:37 PM
  #27  
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Originally Posted by DnvrFox
Do you see any problems between switching from the ethernet adapter wifi and the PCMCIA Card. Will the computer handle the two different processes (of course, not at the same time)?
XP should handle it fine. It will consider them two different network interfaces. You will want to make sure they're both set to obtain IP addresses and DNS automatically (DHCP) since that's how most public wireless networks work and I'm guessing that's how your own home wireless network works too. You're right about not wanting both plugged in at the same time. If you have both plugged in at the same time then it might get confused because it will have two interfaces accessing the same network. It will thus probably have two different IP addresses. Some OSes handle that okay but I don't know about XP.
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Old 06-22-05, 07:39 PM
  #28  
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Originally Posted by khuon
Hmm... it depends on how the laptop hooks up with the wireless transmitter as a client. Most client software (the stuff that came with your adapter) have the ability to maintain several profiles. Windows XP also has built-in generic wireless management capability and can do profiles too but it's not as spiffy. Try right clicking on the properties for the wireless adapter in the network section of the control panel.
I installed NO software - no drivers, etc. for my Belkin, just plugged it in, messed around a bit with the AOL connectivity program, and it worked.
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Old 06-22-05, 07:42 PM
  #29  
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Originally Posted by DnvrFox
Saw an NEC PCMCIA 11.g for about $30.
I don't know much about the NEC card but the Netgear, D-Link, Intel and Cisco cards are solid. You can get the Netgear card for $30 (after rebate) from Amazon.
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Old 06-22-05, 07:44 PM
  #30  
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Originally Posted by khuon
I don't know much about the NEC card but the Netgear, D-Link, Intel and Cisco cards are solid. You can get the Netgear card for $30 (after rebate) from Amazon.
Thanks for all your time and energy.
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Old 06-22-05, 07:49 PM
  #31  
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Originally Posted by DnvrFox
I installed NO software - no drivers, etc. for my Belkin, just plugged it in, messed around a bit with the AOL connectivity program, and it worked.
Okay. I think I understand what's going on now. You don't actually have a wireless adapter directly on your laptop. It's hooked up via ethernet to the ethernet port on the laptop. I'm assuming you have one of these?



If so, you can configure it for encryption. You will also have to configure the wireless access point/router in your basement for encryption too. Then your home network will be encrypted. Now when you travel and assuming you pick up a PCMCIA wireless card, you can configure that seperately to not have encryption in one of its profiles. You can also configure it with a home profile that does have encryption. In actuality, you don't really need the Belkin adapter even at home unless of course you have to free up that PCMCIA slot to use your CF card from your camera.
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Old 06-22-05, 09:17 PM
  #32  
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Originally Posted by khuon
Okay. I think I understand what's going on now. You don't actually have a wireless adapter directly on your laptop. It's hooked up via ethernet to the ethernet port on the laptop. I'm assuming you have one of these?



If so, you can configure it for encryption. You will also have to configure the wireless access point/router in your basement for encryption too. Then your home network will be encrypted. Now when you travel and assuming you pick up a PCMCIA wireless card, you can configure that seperately to not have encryption in one of its profiles. You can also configure it with a home profile that does have encryption. In actuality, you don't really need the Belkin adapter even at home unless of course you have to free up that PCMCIA slot to use your CF card from your camera.
Yes, that is exactly what I have at home.

Still feel no need for home encryption, and, yes, the reason I got the above was to keep the PCMCIA available for the CF card frommy digital camera.

Still don't understand "profiles" or at least how to do them. I right clicked on my network icon in control panel, and did not get a "properties", dug a little deeper and promptly got lost in the technicalities.
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Old 06-22-05, 09:43 PM
  #33  
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Originally Posted by DnvrFox
Still don't understand "profiles" or at least how to do them. I right clicked on my network icon in control panel, and did not get a "properties", dug a little deeper and promptly got lost in the technicalities.
You won't see profiles right now because profiles aren't supported for the ethernet adapter... only a directly installed wireless adapter. Your laptop being hooked to the Belkin adapter via ethernet only knows that you have an ethernet interfaces and doesn't know or care that it's actually wireless so it treats it just as an ethernet interface. When you get a PCMCIA card, you'll be able to use profiles if you want because XP will see it as an actual wireless interface.
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Old 06-23-05, 12:11 AM
  #34  
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Thanks for the tip regarding the aerials (keep them horisontal). This has realy improved my coverage.
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Old 06-23-05, 01:23 AM
  #35  
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RF propagation is perpendicular to MOST antennas, look up the DDRR (directional discontinuity ring radiator) some time.

You can always get clever and run some nice coax like RG-316 from your box to upstairs where you use your laptop.....
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Old 06-23-05, 04:52 AM
  #36  
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hey khuon-
have you and any opportunity to mess around with any of the home-user "Pre-N" gear? I haven't and avoid it like the plague (did the same with Wireless G - since it was pre-standard). I have yet to hear about its perfornace, etc - not wanting it at all, as 11n should be out soon enough. G works fine for me.

Second question - have you taken any of the CWNP series tests?

Thanks again for the info!
J
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Old 06-23-05, 05:35 AM
  #37  
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Originally Posted by khuon
You won't see profiles right now because profiles aren't supported for the ethernet adapter... only a directly installed wireless adapter. Your laptop being hooked to the Belkin adapter via ethernet only knows that you have an ethernet interfaces and doesn't know or care that it's actually wireless so it treats it just as an ethernet interface. When you get a PCMCIA card, you'll be able to use profiles if you want because XP will see it as an actual wireless interface.
The Belkin does come with a utility diskette for WEP encryption. But I think I will avoid that for now.
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Old 06-23-05, 11:19 AM
  #38  
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Originally Posted by [165]
hey khuon-
have you and any opportunity to mess around with any of the home-user "Pre-N" gear? I haven't and avoid it like the plague (did the same with Wireless G - since it was pre-standard). I have yet to hear about its perfornace, etc - not wanting it at all, as 11n should be out soon enough. G works fine for me.
I work for a company that actually makes control plane software for highly managed wireless solutions as well as integrated technologies that combine it with layer 2 switching and layer 3 routing... the so-called "triple-play". I thus get access to some pretty advanced wireless stuff. So far, I've been impressed with the pre-802.11n gear in terms advancement/performance but I'm not all that impressed in terms of robustness and deployability. This is to say that when it works, it works great and promised speeds are actually realised speeds. However it is finicky and when it doesn't work... it really doesn't work. Luckily TGn seems to be the proposal that is surviving going forwards. WWISE is a joke... a bad joke and I'm so glad it's going down in flames. It would have been very finicky to deploy and polluted so much more of the 2.4GHz space that coexistance with 802.11b/g networks would have been pretty much impossible. At least TGn will only affect concurrent operations with 802.11a deployments which never really took off that big in the first place. To be honest though, if I were buying this gear for personal use, I'd wait a while. Hell, I barely overutilise 802.11g as it is and most of the time 802.11b speeds are more than sufficient. I still think 802.11b networks are a pretty good workhorse for the average consumer considering it has better range, lower power consumption and most people hardly push enough sustained traffic to saturate it.


Originally Posted by [165]
Second question - have you taken any of the CWNP series tests?
Nope... actually despite having been in the networking industry for so long, I have no 4-letter certifications after my name. I admit that if I had the time, I'd probably go collect a few.
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Old 06-23-05, 11:41 AM
  #39  
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Well, my wifi shut down a few minutes ago. Could not reconnect. Changed the server location a bit (would have changed it more but need an extension cable to do that)and put the antenna parallel to the floor. Did the same with the receiver and it has now reconnected.

So, it appears that the connection is tenuous at best!
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Old 06-23-05, 11:51 AM
  #40  
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Originally Posted by DnvrFox
Well, my wifi shut down a few minutes ago. Could not reconnect. Changed the server location a bit (would have changed it more but need an extension cable to do that)and put the antenna parallel to the floor. Did the same with the receiver and it has now reconnected.

So, it appears that the connection is tenuous at best!
I've noticed some gear goes into a sort of stalled mode if it's under heavy traffic loads and at the same time really straining to maintain the wireless association between the base station and the client. I've seen this in a few consumer-grade products such as Linksys and D-Link gear. This usually happens when there's weak signal and the SNR (signal-to-noise ratio) is below a certain threshold. I think what happens is that the client station sees the weak signal and goes "hunting". The best preventative measure is to try and maintain a strong signal between both ends. In the worst case, you may consider getting a range extender to place midway. These cost anywhere from $50 to $75 though.
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Old 06-24-05, 06:53 PM
  #41  
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Mounted the server/transmitter on the basement wall as high as I could reasonably get it, mountes the wifi receiver permanently in the upstairs office (first floor, actually) and they seem to be communicating just fine.

Ordered a PCMCIA wifi adapter (mostly for traveling). Curious to see if it will work on the first floor. Got the snail delivery free, so it will be a while before UPS gets it here.
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Old 06-29-05, 07:27 PM
  #42  
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Got my "Netgear" PCMCIA Cardbus card today, installed the software, plugged the card in, and it WORKED.

No profiles at this time. I checked out other netwroks in the area and the highest is 19%, whatever that means. I could connect to it, however. None of them have security. My Netgear home is at 90% (whatever that means) with my computer downstairs.

I can plug and unplug the PCMCIA card and the connection continues through my Belkin ethernet wireless connection without a flaw! The PCMCIA card takes precedence if they are both plugged in at the same time.

Tried installing the software and card in my old W95 laptop computer, but, alas, it did not recognize the PCMCIA card, even though the card fit the slot. Anyone know anything that works with W95?

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Old 07-02-05, 07:45 PM
  #43  
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Have been sitting on the back porch using my laptop on battery and the Netgear card with the WIFI.

WOW, this is great. Although the signal strength is listed at 48%, everything is going through fine, including this message.

I probably only needed the PCMCIA card, and the Belkin Ethernet adapter was a waste of money.

Oh well, you learn by experience.
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Old 07-02-05, 07:47 PM
  #44  
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Originally Posted by DnvrFox
I probably only needed the PCMCIA card, and the Belkin Ethernet adapter was a waste of money.

Oh well, you learn by experience.
If you have or ever get a desktop machine then you can always use the Belkin unit with that.
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Old 07-02-05, 08:48 PM
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yup!
Khuon - just passed my CWNA. After you discussion on FHSS and DSSS systems within the same environment, I went back and checked my materials - thanks! Glad you did, it sorted out a few things I was unsure on.
I owe Khuon a beer, and a good one at that!
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Old 07-05-05, 02:27 PM
  #46  
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Originally Posted by poululla
Thanks for the tip regarding the aerials (keep them horisontal). This has realy improved my coverage.
I haven't had a chance to try this out myself, but one of my colleagues swears it works. If it does, you could improve your own signal (and decrease your signal leaking over to your neighbor's house if you aim it right).

Free antenna designs

Dave
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Old 07-05-05, 02:52 PM
  #47  
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Originally Posted by [165]
Some other things to note:
Some cordless telephones may cause interference with the wireless equipment, only if the frequency ranges are the same though. 900MHz phone? No worries. 802.11B/G wireless operates in the 2.4GHz range and 802.11A operates in 5.8GHz.

Microwave ovens can also cause interference/harmonic distortion in some 802.11B/G equipment.
Ditto, or cordless 2.4ghz phones. I am 100% wired because there are just too many interferring technologies such as wireless security cameras, 2.4ghz phones, microwave ovens and pretty much seemgly anything else that operates wirelessly.
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