drjim
Premium,MVM
join:2000-06-13
Torrance, CA
clubs:
| reply to BrianDamage
Re: Don't cater to more corporate cry-babies
"Well, if I read the article right, the satellite companies are operating in or around 2400 mghz (or 2.4 ghz) and this is UNLICENSED spectrum."
Not exactly....It's a SHARED band, and the people running unlicensed (Part 15) devices are required to do certain things, under certain circumstances. Example....I fire up my 15W 2.4GHz Amateur Radio transmitter, and knock your WLAN off-the-air. Gee, that's too bad for you. I have a license, and you don't. If your WLAN (or 2.4GHz telephone)interferes with my AO-40 satellite downlink, I can request that you turn it off, or not use it during certain hours. Of course, the chances of: 1)Finding you, and 2) Getting you to understand what Part 15 requires of you, are both exceedingly small, so you never hear of a Ham doing this. These guys, however, have some serious MONEY and LAWYERS to do their talking for them, and as such, can get the attention of the media, and more importantly, the FEDS. I recently read a design review of their system in one of my RF trade mags, and it's laughable. It's poorly designed, the silicon they use in the receivers is NOT ready for prime time, and their ultimate signal-to-noise ratio is something like 6dB....pretty poor. So, they p*ss and moan to their Congressman and stockholders, and try to get the rules changed to allow their system what amounts to an extraordinary level of protection from existing services.
I hope they fall on their a$$!
drjim
--
One man's Magic is another man's Engineering. |
