For the WiFi Gurus - High Power AP with Multi-SSID Support
I am doing a WiFi network in a building with two offices across a think concrete wall. I'd like the two to share just one AP, and I'd like to have a separate SSID for Guests. I am therefore looking for a high power AP that supports multiple SSIDs. By high power, I mean something transmitting in the range of upto 1000mW of output power. Ubiquiti PicoStation M2-HP has this sort of transmit power but not multiple-SSID, althout I see it's possible by manually editing the config file via the CLI. This doesn't look good if this device was to be managed by someone without such detailed knowhow. I am considering also the Linksys E4200 but I cannot find any details about the transmit power. Anyone using the E4200 who can report on the details? -- Best regards, Odhiambo WASHINGTON, Nairobi,KE +254733744121/+254722743223 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ I can't hear you -- I'm using the scrambler. Please consider the environment before printing this email.
On Mon, Feb 20, 2012 at 5:36 PM, Odhiambo Washington <odhiambo@gmail.com> wrote:
I am doing a WiFi network in a building with two offices across a think concrete wall. I'd like the two to share just one AP, and I'd like to have a separate SSID for Guests.
I am therefore looking for a high power AP that supports multiple SSIDs.
Mikrotik?
By high power, I mean something transmitting in the range of upto 1000mW of output power. Ubiquiti PicoStation M2-HP has this sort of transmit power but not multiple-SSID, althout I see it's possible by manually editing the config file via the CLI. This doesn't look good if this device was to be managed by someone without such detailed knowhow.
My memory fails me when it comes to the xmit power. BR S
On Mon, Feb 20, 2012 at 18:00, Steve Muchai <smuchai@gmail.com> wrote:
On Mon, Feb 20, 2012 at 5:36 PM, Odhiambo Washington <odhiambo@gmail.com> wrote:
I am doing a WiFi network in a building with two offices across a think concrete wall. I'd like the two to share just one AP, and I'd like to
have a
separate SSID for Guests.
I am therefore looking for a high power AP that supports multiple SSIDs.
Mikrotik?
@Steve, I know Mikrotik has all the features I wanted but in this situation it's an overkill - cost-effectiveness, I mean:-)
By high power, I mean something transmitting in the range of upto 1000mW of output power. Ubiquiti PicoStation M2-HP has this sort of transmit power but not multiple-SSID, althout I see it's possible by manually editing the config file via the CLI. This doesn't look good if this device was to be managed by someone without such detailed knowhow.
My memory fails me when it comes to the xmit power.
It's only important to me that the signal can permeate the concrete wall. Ubiquiti Power AP N would do this (given the location), but it's already discontinued, plus I haven't tried doing multiple SSID with any UBNT products. -- Best regards, Odhiambo WASHINGTON, Nairobi,KE +254733744121/+254722743223 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ I can't hear you -- I'm using the scrambler. Please consider the environment before printing this email.
Take a look at ruckus Wireless products. I know they are very powerful and support multiple SSIDs. On Feb 20, 2012 5:37 PM, "Odhiambo Washington" <odhiambo@gmail.com> wrote:
I am doing a WiFi network in a building with two offices across a think concrete wall. I'd like the two to share just one AP, and I'd like to have a separate SSID for Guests.
I am therefore looking for a high power AP that supports multiple SSIDs.
By high power, I mean something transmitting in the range of upto 1000mW of output power. Ubiquiti PicoStation M2-HP has this sort of transmit power but not multiple-SSID, althout I see it's possible by manually editing the config file via the CLI. This doesn't look good if this device was to be managed by someone without such detailed knowhow.
I am considering also the Linksys E4200 but I cannot find any details about the transmit power. Anyone using the E4200 who can report on the details?
-- Best regards, Odhiambo WASHINGTON, Nairobi,KE +254733744121/+254722743223 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ I can't hear you -- I'm using the scrambler. Please consider the environment before printing this email.
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@Wash, the amount of signal attenuation in concrete various from 12-27db. This is a huge loss, and if the concrete has metal in it, the attenuation increases. The other problem is that throwing a strong signal at it is going to cause various reflections and noise therefore you could end up with a very slow connection with large dropouts due to errors, no matter the signal strength. Since you are in the floor, give power-line ethernet a try if you can find the devices locally. :-)
On Tue, Feb 21, 2012 at 11:23, aki <aki275@gmail.com> wrote:
@Wash, the amount of signal attenuation in concrete various from 12-27db. This is a huge loss, and if the concrete has metal in it, the attenuation increases. The other problem is that throwing a strong signal at it is going to cause various reflections and noise therefore you could end up with a very slow connection with large dropouts due to errors, no matter the signal strength. Since you are in the floor, give power-line ethernet a try if you can find the devices locally. :-)
@Aki, Powerline ethernet is an option I have at hand, but 3rd level, really. I am allowed to drill a hole through the wall to pass a cat5e cable, and there is trunking already. I will only drill a hole (it's cheaper and easier than Powerline) if I have to use two APs. For now I must rule out a single AP first. -- Best regards, Odhiambo WASHINGTON, Nairobi,KE +254733744121/+254722743223 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ I can't hear you -- I'm using the scrambler. Please consider the environment before printing this email.
@Wash, use the 12-27db loss as a indicator of what outputs in gain you need, and keeping in mind a lot of RF power hitting a concrete block will produce harmonics of frequencies that will either cancel out the carrier or distort it. This is impossible to detect, but to visualize an example : In CBD, if you look at the RF signals on normal TV stations, some views have shadows in the image details. That is all reflected signals off the buildings. Using the same principle, APs will be error prone and less outputs. In a clean Wifi network, you are generally looking at very low latencies around 1-20ms internally. HTHs. :-) Rgds. On Tue, Feb 21, 2012 at 11:42 AM, Odhiambo Washington <odhiambo@gmail.com>wrote:
On Tue, Feb 21, 2012 at 11:23, aki <aki275@gmail.com> wrote:
@Wash, the amount of signal attenuation in concrete various from 12-27db. This is a huge loss, and if the concrete has metal in it, the attenuation increases. The other problem is that throwing a strong signal at it is going to cause various reflections and noise therefore you could end up with a very slow connection with large dropouts due to errors, no matter the signal strength. Since you are in the floor, give power-line ethernet a try if you can find the devices locally. :-)
@Aki,
Powerline ethernet is an option I have at hand, but 3rd level, really. I am allowed to drill a hole through the wall to pass a cat5e cable, and there is trunking already. I will only drill a hole (it's cheaper and easier than Powerline) if I have to use two APs. For now I must rule out a single AP first.
On Tue, Feb 21, 2012 at 12:07 PM, aki <aki275@gmail.com> wrote:
@Wash, use the 12-27db loss as a indicator of what outputs in gain you need, and keeping in mind a lot of RF power hitting a concrete block will produce harmonics of frequencies that will either cancel out the carrier or distort
Does this vary depending on the type of antenna used (ie omni vs. directional)? BR S
Hi @Steve, it does. The antenne are generally used in a free-space setting for coverage purposes only. Watch this clip http://www.youtube.com/watch?v=BzxuPfR97jY . Many RF guys on this list know this but will translate what the screen show. The video shows 2 signal outputs, the one the left is a standard outdoor AP while the right is a a very strong RF signal on another AP. But watch the spike on the right AP on the high power signal at 0:03 seconds ( the spike is on the left side of the wave ), that is strongly suggests harmonics in action. In this case, the carrier is now carrying noise within it. Rgds. On Tue, Feb 21, 2012 at 12:39 PM, Steve Muchai <smuchai@gmail.com> wrote:
On Tue, Feb 21, 2012 at 12:07 PM, aki <aki275@gmail.com> wrote:
@Wash, use the 12-27db loss as a indicator of what outputs in gain you need, and keeping in mind a lot of RF power hitting a concrete block will produce harmonics of frequencies that will either cancel out the carrier or distort
Does this vary depending on the type of antenna used (ie omni vs. directional)?
BR S
participants (4)
-
aki -
Odhiambo Washington -
reuben wazwa -
Steve Muchai