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Battery powered wireless router?

Old 02-19-08, 07:01 PM
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Battery powered wireless router?

I need a portable, battery-powered wireless router. Does such a thing exist? Trying to create a network in the "middle of nowhere" where all the wireless devices need to communicate with one master server computer in infrastructure mode (ad-hoc mode is not an option as it is not supported).

Any ideas?
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Old 02-19-08, 07:03 PM
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It's just a closed network. Will not be accessing the Internet. Do I still need a router? Or do I need a wireless access point? A wireless switch? Wireless hub? How are these 4 things different?
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Old 02-19-08, 07:15 PM
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Most consumer routers use a DC power supply from the transformer that plugs in the wall. Just get a battery of the voltage the transformer supplies and wire it to a power plug that fits the router. A big battery. Most of my routers use 12V, 1A or so. A car or other heavy-duty battery would work real well for that.

You really just need an access point which can be a router without the WAN section hooked up.
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Old 02-19-08, 07:23 PM
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Is there no portable solution? We'll be carrying this around a lot.
I was hoping that there would be a handheld or a laptop with a wireless AP built-in.
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Old 02-19-08, 07:46 PM
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I haven't seen one. I do have some Netgear WGR101 travel routers that are very small and have fairly low power requirements -- 5V, 1.2A.

A 6V lantern battery would probably power it for quite a while. It doesn't have a very large range so it doesn't need that much power.
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Old 02-19-08, 08:18 PM
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Look for a wireless adapter that has a feature called Soft AP.
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Old 02-19-08, 08:47 PM
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If you have a laptop, something like this will give you the soft AP mentioned above

http://www.zyxel.com/web/product_fam...6-42EAEFD1F559

should do what you want
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Old 02-19-08, 10:03 PM
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That's an interesting device.

But wouldn't the net effect be a reduced amount of uptime overall since a notebook has to power the access point? A lot of that notebook's battery power will be going to the wireless coverage.
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Old 02-19-08, 10:29 PM
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A router is not required for a closed network. All you need is a wireless AP. Since the server is probably consuming electricity from a service, you can plug in the WAP where the server is. Presumably you'd use just a router without anything attached to the WAN if you need DHCP.
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Old 02-19-08, 11:49 PM
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Originally Posted by 4KRG
If you have a laptop, something like this will give you the soft AP mentioned above

http://www.zyxel.com/web/product_fam...6-42EAEFD1F559

should do what you want
That's a really interesting device. Thanks. That's sort of the thing that I was looking for. I'll look into that and give feedback.

Yes, it might eat up a lot of battery from the laptop, but that's not a big concern at the moment. I just need to setup a network for 30-90 minutes at a time.
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Old 02-20-08, 07:42 AM
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Originally Posted by X
That's an interesting device.

But wouldn't the net effect be a reduced amount of uptime overall since a notebook has to power the access point? A lot of that notebook's battery power will be going to the wireless coverage.
Blank the screen, it will probably even out

There are also other battery solutions you can use for a laptop

These things are everywhere

{This was suppose to be a link to buy.com, but the dvdtalk affiliate bullshit kept screwing it up}
go to buy dot com and search for
Lenmar PPU1619 Universal External Laptop Battery

Or look at this

http://www.laptopbattery.net/universalbatteries.html

Last edited by 4KRG; 02-20-08 at 07:45 AM.
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