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One-Watt Wireless Radio Modem Reaches 40 Miles
maxstreampr wrote in to plug their
radio modem. It's the size of a credit card, one watt, and can transmit 40 miles line of sight or 3000 feet indoors. Something about using the AT command set to fire off a command 40 miles through the air amuses me.
+++ATH0 on a cloudy day. With a repeater.
Additionally, rumor has it that this device will burn a hole in your pocket. (Thank you, I'm here all week.)
Do you like German cars?
"Site" - a location.
"Sight" - something visual.
"Line of sight" - a line along which you can see (i.e., an unobstructed line.)
"Line of site" - evidence that what you've written matters so little to you that it's not worth the effort to proofread. You don't care; why should we?
The Advanced Encryption Standard (AES) is used with a 256-bit key, the highest encryption standard available.
The real question is, did they use Lexar programming techniques?
Using the AT command to set a fire 40 miles off? Or has it just been too long a day at work? My office has been regularly swept for mines.
I submitted this story last night, and it didn't get posted.
What kind of antenna did they use? "High gain" isn't all that descriptive.
-Randy
Damn, I knew I should have actually read the article!!!
If someone says he and his monkey have nothing to hide, they almost certainly do.
Apparently, the editors are hedging their bets on this one: I keep hitting reload, and the submission text alternates between "line of sight" to "line of site".
Wow, that's some marketing. The "40 miles" claim is when you're in deep space and using high gain antennas. Actual performance will be less than a mile. Also, in case people want to compare this with 802.11 (which is difficult because they are in different bands), a typical 802.11b card radiates 30mW, instead of the 1W these guys are apparently claiming. The data rate is nothing exceptional either, 115.2kbps (and these are 1000 bits/kb sized), which pales in comparison to 802.11g at ~55000kbps. This technology would have a much higher "wow" factor 5 years ago, but nowadays that kind of range for that kind of throughput just isn't all that new or special.
I read the internet for the articles.
In ham radio, there's a 1000 miles per watt award that's not particularly hard to get....I made 1842 miles per watt (Palo Alto, California to Sakhalin Island in Russia) using a data modulation called PSK-31 and a wire antenna on my roof, and just over 1000 miles per watt from San Luis Obispo, CA to Estonia using CW: 5700 miles with 4.5 watts to a 28 foot wire thrown from a second-story window into a small tree, running on a pack of AA batteries.