I use/test/setup equipment that goes 50km at 0.5W of power. OK, they're using a non-optimal antenna, but the antennas really aren't that expensive. 17W would kill a bettery quick. No surfing for pron at night anymore.
200kbps is interesting, and as Bruce Perens mentions, they should have been able to get a lot more bandwidth out of the spectrum they are using. None-the-less, they could be making a robustness/raw data rate tradeoff in the modulation scheme. I am probably just blind right now, but I can find any real details on any of the linked to.
One comment above askes about inter-city propgation, and whether this technology would/could be an answer. I think 3G and or 802.15(MAN) are better because they have been designed for intercity communications, and meet or beat the 200kbps mark, which much less power used (this is very important!)
While I thought the Kurtz cartoon was funny, I don't think it really gives John Edward a fair chance, especially for those reading here who have never actually watched the show, or been in the studio for one of his shows. I am not here to defend the man, but the cartoon is a drastic over-simplification of what he actually does do. I know there are plenty of examples from the TV show where he seems to be "reaching" for it, but there are just as many situations that leave me with a lot of doubt about him faking it, even though I am not a believer (in him at least).
I was recently dragged to one of his local appearances, and it left me wondering even more. Specifically, there were no "prior interviews" (I asked someone afterward who was talked to by Edward) and he didn't do the usual "digging" for information I have seen so many other "pychics" do in my lifetime.
What makes you think 2.4GHz phones will keep knocking WiLAN's off the air? Put one on a spectrum analyzer. They only use about 2MHz out of the ~80MHz available. 802.11b/g use about 22MHz.
Anecdotally, I have 2 V-Tech 2.4GHz phones running off of the same base, and a 802.11b network in my apartment and don't ever have any issues, even during file transfers.
This is not 2gbps nor is it "ultrawideband". As we all know, 1xEV-DO is more like 2Mbps, and the story is quoted as saying it "Ultra Fast Wireless", not UWB.
There are many good references about 802.11 needing too much power for a cell phone application, but TI just announced a chipset based on.013 micron CMOS process that brings the power consumption down by ten-fold. (Yes press release...)
Two more jumps like this (.10u and then.08u) and you are with-in range of current 3G power consumption.
I too used to say 802.11 will never go into hand-help applications (Cell phones & PDAs) but I am starting to rethink that position,
This doesn't bring into account (FCC & ETSI) type approval testing. If you are an intentional (or even unintentional) RF radiator, type approval will be a challenge the first couple of times. I deal with wireless product marketing, and is something I talk to customers about quite a bit. Here it is in a nutshell: 1) If you plan to do your own manufacturing, you will need to take your 'cooked' design to an FCC approved lab for testing, and then submit the testing docs to a lawyer you have hired in the DC area who specializes in FCC type approval document submissions. The more you pay, the more quickly your design gets the OK. 2) If you plan on going to a contract manufacturer, make sure FCC/ETSI type approval is on the checklist. Talk to them. Ask them about past designs where they took care of type approval. Ask for quotes on how much they will charge you to do this. This is one of the reasons why companies like Murata do so well. They know this game (US, Japan, Europe, ROW) and take care of it for you.
Either way, it can be expensive, and really depends on the type of RF radiator your product is, and what band (frequency).
Hope this helps, and there is more to talk about, but then I'd be writing a book!
I noticed others talking about the robots behind Sony, and haven't seen anyone post pictures. So here they are (along with some others): http://www.eqteam.com/e3/
If you want to see something at higher rez, let me know...
When 802.11 is mentioned, everyone seems to be assuming 802.11b, which is not the issue. Many people (at least here in Silicon Valley) are setting up long range 1or2Mbps links that are based on 802.11 (no 'b' or 'g', just 802.11). They transmit at much maximum power, using high gain _directional_ antennas to get more than 1000 meters.
I do still believe that an 802.11b network could cause interference to licensed spectrum users, but buildings have a way of attenuating signals =) (having worked closely with 3 different types of 2.4GHz packet radio technologies)
For those interested in a detailed explanation (biased?) of FCC part 15 rulings and how they apply to Ham radio operators, I suggest: http://www.arrl.org/tis/info/part15.html It was enlightening for me!
I read through most of the posts, and everyone is bagging the service (atleast it seems to me). I've had it for more than a month now, and I will not be giving it up, even though it IS expensive. Why? 1) 30-50kbps when the planets aren't aligned 2) Works with my laptop OR my IPaq 3) Meetings where there are no ethernet jacks and no APs are still productive 4) I can share with my friends during company meetings and it's still decent! 5) All TCP/IP protocols work, TightVNC works well enough to use for emergencies 6) Traveling 65 (MPH) down the freeway, pulling FTP at 37kps for 13 miles
It really doesn't hold a candle to Ricochet, but then again Verizon's service is up;) and it doesn't have some of the problems (noted by others) that 3G and GPRS networks seem to exhibit.
It is far easier to search a file system, then run a sniffer, flag a packet stream for a 'trigger' string, and then push/copy the email to a fed server. Besides, having a copy of an entire mailbox allows you to go back in time (depending on the situation) and look at other emails that might not have been flagged from a keyword search.
Seperately speaking, I have to wonder if the feds plan on paying those of us who are running our own email servers and don't have time (without taking time off of work) to comply with their demands. (I know... cold day in hell)
Companies are working on 802.11b/a and a/g solutions, but you will not see $199 cards for this until 2003 (from what I hear). The biggest issue concerning the ability to support the newer standards via a 'firmware upgrade' is the fact that the 11a/g handle the air interface differently from 11b. This requires different/upgraded transcievers in the card itself, not to mention new access points.
To get specific, 802.11a uses a different spectrum (5.5GHz) and 802.11g uses OFDM for modulation at 2.4GHz, and both of these are vastly different (hardware level) from 802.11b. Secondarily, the other 802.11x standards mostly effect the MAC layer (QoS et al) and this is typically not handled by a general purpose processor, so just upgrading the firmware won't necessarily help here either.
I recently moved 8 domains from NSI to Register.com, paying Register.com a discounted fee for 2 more years on each of the domains. The transfer went through (painlessly!) in about 5 days, and Register.com didn't screw up any of the domain pointers. I'm much happier now that I have NO domains using NSI as the registrar. Also, someone mentioned getting billed by NSI for domains after they were moved, this also happened to me, and not paying had no consequences.
I've been using Register.com for about a year, and have never had their online system go down.
Sales/Support questions usually get answered in about 48 hours, often less time for basic questions. Register.com, however, isn't very friendly if you are an ISP/Host, as you can't just fax/email them with changes to domains. You have to rely on whoever has the admin password for the web interface to make changes to a given domain.
But for my hard earned dollar, godaddy.com is decent @ $8.95 a year. So far they seem stable and no issues.
>I'm looking for a good Gyro place in the South >Bay area. If you know of one, please let me know.
Falafel DriveIn (Bascom & 280) is decent, limited selection
Yiasso (Chain) - OK food, more than one
Angelos (Race & Alameda) Good to better
Castle Greek Restaurant (N 1st near 237) - crowded at lunch everyday for a reason
Falafel Hut (Ocean St(?), Santa Cruz) - high marks with everyone who's tried it
Slashdot Mirror
This interview was from within a few months of the East Bay Express expose "CEO Jeremy Stoppelman talks about the online review site's success, and how often he's asked to remove bad reviews." Part 1: http://www.pressheretv.com/?cat=1&subcat=1&video=87 Part 2: http://www.pressheretv.com/?cat=1&subcat=1&video=89
This HTML isn't much worse than what I see come out of FCKEditor and other web-based RTF/WYSIWYG editors.
ASPFAQ (http://www.aspfaq.com/) has helped me more than a few times.
17W of power to get 40km?
I use/test/setup equipment that goes 50km at 0.5W of power. OK, they're using a non-optimal antenna, but the antennas really aren't that expensive. 17W would kill a bettery quick. No surfing for pron at night anymore.
200kbps is interesting, and as Bruce Perens mentions, they should have been able to get a lot more bandwidth out of the spectrum they are using. None-the-less, they could be making a robustness/raw data rate tradeoff in the modulation scheme. I am probably just blind right now, but I can find any real details on any of the linked to.
One comment above askes about inter-city propgation, and whether this technology would/could be an answer. I think 3G and or 802.15(MAN) are better because they have been designed for intercity communications, and meet or beat the 200kbps mark, which much less power used (this is very important!)
While I thought the Kurtz cartoon was funny, I don't think it really gives John Edward a fair chance, especially for those reading here who have never actually watched the show, or been in the studio for one of his shows. I am not here to defend the man, but the cartoon is a drastic over-simplification of what he actually does do. I know there are plenty of examples from the TV show where he seems to be "reaching" for it, but there are just as many situations that leave me with a lot of doubt about him faking it, even though I am not a believer (in him at least).
I was recently dragged to one of his local appearances, and it left me wondering even more. Specifically, there were no "prior interviews" (I asked someone afterward who was talked to by Edward) and he didn't do the usual "digging" for information I have seen so many other "pychics" do in my lifetime.
No judgements, just continuing to observe...
What makes you think 2.4GHz phones will keep knocking WiLAN's off the air? Put one on a spectrum analyzer. They only use about 2MHz out of the ~80MHz available. 802.11b/g use about 22MHz.
Anecdotally, I have 2 V-Tech 2.4GHz phones running off of the same base, and a 802.11b network in my apartment and don't ever have any issues, even during file transfers.
Got data?
This is not 2gbps nor is it "ultrawideband". As we all know, 1xEV-DO is more like 2Mbps, and the story is quoted as saying it "Ultra Fast Wireless", not UWB.
There are many good references about 802.11 needing too much power for a cell phone application, but TI just announced a chipset based on .013 micron CMOS process that brings the power consumption down by ten-fold. (Yes press release...)
.08u) and you are with-in range of current 3G power consumption.
Two more jumps like this (.10u and then
I too used to say 802.11 will never go into hand-help applications (Cell phones & PDAs) but I am starting to rethink that position,
This doesn't bring into account (FCC & ETSI) type approval testing. If you are an intentional (or even unintentional) RF radiator, type approval will be a challenge the first couple of times. I deal with wireless product marketing, and is something I talk to customers about quite a bit. Here it is in a nutshell:
1) If you plan to do your own manufacturing, you will need to take your 'cooked' design to an FCC approved lab for testing, and then submit the testing docs to a lawyer you have hired in the DC area who specializes in FCC type approval document submissions. The more you pay, the more quickly your design gets the OK.
2) If you plan on going to a contract manufacturer, make sure FCC/ETSI type approval is on the checklist. Talk to them. Ask them about past designs where they took care of type approval. Ask for quotes on how much they will charge you to do this. This is one of the reasons why companies like Murata do so well. They know this game (US, Japan, Europe, ROW) and take care of it for you.
Either way, it can be expensive, and really depends on the type of RF radiator your product is, and what band (frequency).
Hope this helps, and there is more to talk about, but then I'd be writing a book!
I noticed others talking about the robots behind Sony, and haven't seen anyone post pictures. So here they are (along with some others):
http://www.eqteam.com/e3/
If you want to see something at higher rez, let me know...
When 802.11 is mentioned, everyone seems to be assuming 802.11b, which is not the issue. Many people (at least here in Silicon Valley) are setting up long range 1or2Mbps links that are based on 802.11 (no 'b' or 'g', just 802.11). They transmit at much maximum power, using high gain _directional_ antennas to get more than 1000 meters.
l
I do still believe that an 802.11b network could cause interference to licensed spectrum users, but buildings have a way of attenuating signals =) (having worked closely with 3 different types of 2.4GHz packet radio technologies)
For those interested in a detailed explanation (biased?) of FCC part 15 rulings and how they apply to Ham radio operators, I suggest:
http://www.arrl.org/tis/info/part15.htm
It was enlightening for me!
I read through most of the posts, and everyone is bagging the service (atleast it seems to me). I've had it for more than a month now, and I will not be giving it up, even though it IS expensive. Why?
;) and it doesn't have some of the problems (noted by others) that 3G and GPRS networks seem to exhibit.
1) 30-50kbps when the planets aren't aligned
2) Works with my laptop OR my IPaq
3) Meetings where there are no ethernet jacks and no APs are still productive
4) I can share with my friends during company meetings and it's still decent!
5) All TCP/IP protocols work, TightVNC works well enough to use for emergencies
6) Traveling 65 (MPH) down the freeway, pulling FTP at 37kps for 13 miles
It really doesn't hold a candle to Ricochet, but then again Verizon's service is up
It is far easier to search a file system, then run a sniffer, flag a packet stream for a 'trigger' string, and then push/copy the email to a fed server. Besides, having a copy of an entire mailbox allows you to go back in time (depending on the situation) and look at other emails that might not have been flagged from a keyword search.
Seperately speaking, I have to wonder if the feds plan on paying those of us who are running our own email servers and don't have time (without taking time off of work) to comply with their demands. (I know... cold day in hell)
Companies are working on 802.11b/a and a/g solutions, but you will not see $199 cards for this until 2003 (from what I hear). The biggest issue concerning the ability to support the newer standards via a 'firmware upgrade' is the fact that the 11a/g handle the air interface differently from 11b. This requires different/upgraded transcievers in the card itself, not to mention new access points.
To get specific, 802.11a uses a different spectrum (5.5GHz) and 802.11g uses OFDM for modulation at 2.4GHz, and both of these are vastly different (hardware level) from 802.11b. Secondarily, the other 802.11x standards mostly effect the MAC layer (QoS et al) and this is typically not handled by a general purpose processor, so just upgrading the firmware won't necessarily help here either.
Just my 2 cents
I recently moved 8 domains from NSI to Register.com, paying Register.com a discounted fee for 2 more years on each of the domains. The transfer went through (painlessly!) in about 5 days, and Register.com didn't screw up any of the domain pointers. I'm much happier now that I have NO domains using NSI as the registrar. Also, someone mentioned getting billed by NSI for domains after they were moved, this also happened to me, and not paying had no consequences.
I've been using Register.com for about a year, and have never had their online system go down.
Sales/Support questions usually get answered in about 48 hours, often less time for basic questions. Register.com, however, isn't very friendly if you are an ISP/Host, as you can't just fax/email them with changes to domains. You have to rely on whoever has the admin password for the web interface to make changes to a given domain.
But for my hard earned dollar, godaddy.com is decent @ $8.95 a year. So far they seem stable and no issues.
>I'm looking for a good Gyro place in the South >Bay area. If you know of one, please let me know. Falafel DriveIn (Bascom & 280) is decent, limited selection Yiasso (Chain) - OK food, more than one Angelos (Race & Alameda) Good to better Castle Greek Restaurant (N 1st near 237) - crowded at lunch everyday for a reason Falafel Hut (Ocean St(?), Santa Cruz) - high marks with everyone who's tried it