how-to block ads
|
sporkme
drop the crantini and move it, sister
Premium,MVM
join:2000-07-01
Morristown, NJ
 ·Optimum Online
| reply to blah
Re: Not an issue at all
said by blah :
Rain fade really is not an issue with Microwave links at all. I worked for a company for many years that used one and even under the most heavy rains we saw no issues at all. The link was about a 10-15mile distance too.
The piece sounds a bit FUD-infested. Unless this is some new, untested microwave technology, it doesn't really make sense. Well-engineered links should not have problems unless the signal is marginal to begin with. | |
Matt
Take me down to the paradise city
Premium
join:2003-07-20
Jamestown, NC
 ·North State Commun..
| said by sporkme  :said by blah :
Rain fade really is not an issue with Microwave links at all. I worked for a company for many years that used one and even under the most heavy rains we saw no issues at all. The link was about a 10-15mile distance too.
The piece sounds a bit FUD-infested. Unless this is some new, untested microwave technology, it doesn't really make sense. Well-engineered links should not have problems unless the signal is marginal to begin with. I agree. I know of a local carrier that has a 30+ mile microwave link between Greensboro, NC and Asheboro, NC. I specifically asked about weather interference and he said it was non-existent unless the link was marginal to begin with. | |
rf_engineer
join:2003-08-04
USA
| reply to sporkme
said by sporkme :said by blah :
Rain fade really is not an issue with Microwave links at all. I worked for a company for many years that used one and even under the most heavy rains we saw no issues at all. The link was about a 10-15mile distance too.
The piece sounds a bit FUD-infested. Unless this is some new, untested microwave technology, it doesn't really make sense. Well-engineered links should not have problems unless the signal is marginal to begin with. I agree. Microwave has been around for a long, long time and is well proven. Here's a site that chronicles a lot of the old AT&T networks: »long-lines.net/ . Some ill-informed people like to think microwave is some new, risky technology but it's been around longer than several other broadband technologies.
Microwave links are engineered using one of a handful of propagation/rain models which predict the annual availability. Getting the desired availability, whether it's four nines, five nines, or more is merely determining the appropriate antenna gains, transmitter powers, path distances and a few other key factors.
The upcoming wireless backhaul bandwidth crunch is going to be handled largely by hybrid fiber and microwave networks. There's just no way fiber is going to be able to reach rural sites and copper-based T1s from LECs just aren't going to cut it anymore.
Proxim has been around awhile, but they're not the only company offering broadband microwave. Other companies such as Ericsson, NEC, Alcatel, Harris-Stratex, Dragonwave, and Ceragon, to name a few, all offer licensed microwave solutions that you'll likely see deployed for wireless backhaul. | |
|
