2.4ghz vs. 5.7ghz Wireless Broadband? 14
As a bit of a follow-up to our previous discussion on wireless broadband options, Linxx asks: "I work for a company in Yuma, Arizona that offers Wireless Internet access. We cover a large area that extends into Southern California as well as Mexico. We currently use 2.4ghz equipment to do this. We are looking into using 5.7ghz equipment to feed our access points and the rebroadcast at at 2.4ghz. We hope to releive some interferance issues. What I want to know is if anyone has actually compared the two, and if so what kind of results were produced."
5.7 GHz sounds like microwave to me. (Score:2, Funny)
Re:5.7 GHz sounds like microwave to me. (Score:2)
If you pull up a Lucent/Avaya/ORiNOCO wavelan card control panel under windows, you will find there's a "Microwave Oven Robustness" setting which is designed to help make these work in the presence of a microwave oven.
Units (Score:2, Insightful)
Re:Units (Score:2)
JOhn
Re:Units (Score:1)
That is the funniest (mis)use of "Script Kiddie" I have _ever_ seen.
Re:Units (Score:2)
JOhn
Wavelength (Score:1, Informative)
That being said, the bandwidth you can achive out of 5.7GHz will be greater than the 2.4GHz.
Re:Wavelength (Score:1)
They were pretty cool, I only attempted a 4.4 mile link, but I was told they could go much farther.
-Affe
Range can be a problem (Score:2, Informative)
i work at a small ISP in Idaho, where we're currently rolling out a wireless network with Lucent Orinoco and Avaya hardware, and we have a huge problem with the old trees in some of these neighborhoods. i expect this problem would be worse with the higher wireless bands. we're waiting for Wi-LAN [wilan.com] to release their 3.5 GHz wireless hardware [wilan.com] in the US, as we'd love to roll that out.
personally, i would suggest using 802.11b hardware and wait for the 3.5GHz hardware. but that's the opinion of a sysadmin's useless assistant. ^_^
2.4GHz vs 5.8GHz - real world (Score:4, Insightful)
Here's the key points:
5.xGHz is EXPENSIVE. I can't in good faith recommend it for ISP to customer links, except for those customers who need to have solid, VERY high speed links. Use 5.x GHz for your backbone between pops.
5.xGHz tends to be ROCK SOLID. There are actually two chunks of bandwidth up there which are useful this. I personally have used the UNII band stuff which is below 5.8 (three bands - the highest at 5.7GHz), and I can't say I've been really interfered with. This is in a community where 2.4GHz in parts of town is completely saturated.
So if you want expensive but rock solid use the 5.8 GHz stuff.
What we tend to do is use the 5.8GHz for Backhaul from our repeater "cell" sites and use the 2.4GHz for our "last mile". Keeping the cell cites small and using polarization, channels, and sectoral antennas to your advantage is the key.
5.7 GHz and 2.4 GHz compaired (Score:1, Informative)