I'm not that technical in the specs or antenna construction... so bear with me.
Is there anything that suggests that Parkervision is MIMO?? Or is that our assumption? Humphrey -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Jim Thompson Sent: Tuesday, November 09, 2004 7:47 PM To: [EMAIL PROTECTED] Subject: Re: [SOCALWUG] Parkervision cards On Nov 9, 2004, at 1:21 PM, Richard B wrote: > Here's how... > > http://www.nwfusion.com/details/6830.html > > My first thought was "voodo" or something - but thinking about it, it > still seems like some kind of magic! No, its just math. But that doesn't explain how they go 3X the distance to an ordinary 802.11x unit on the other end of the link. Maybe they use their 3 antennas to do a combining/beam-forming thing. But, as I said, there are problems with that too. > The ability to turn multi-path into multi-good-path seems > kinda...weird. but thats how MIMO works. (Thus my "tell me about the range increase in LOS conditions" trick question.) jim kd5fga > Richard, > NCT > N6GPP > > > > ----Original Message Follows---- > From: Jim Thompson <[EMAIL PROTECTED]> > Reply-To: [EMAIL PROTECTED] > To: [EMAIL PROTECTED] > Subject: Re: [SOCALWUG] Parkervision cards > Date: Tue, 9 Nov 2004 08:33:11 -1000 > > how? > > On Nov 9, 2004, at 7:45 AM, Shawn Rogers wrote: > >> Actually, at least with Airgo's MIMO technology (Belkin/SOHOWare), a >> MIMO PCMCIA card will get better range than a standard 802.11g card >> when connecting to a standard 802.11g AP. Same when using a MIMO AP >> with a standard card vs a standard AP with a standard card. >> >>> -----Original Message----- >>> From: Jim Thompson [mailto:[EMAIL PROTECTED] >>> Sent: Monday, November 08, 2004 5:39 PM >>> To: [EMAIL PROTECTED] >>> Subject: Re: [SOCALWUG] Parkervision cards >>> >>> >>> On Nov 8, 2004, at 3:06 PM, Jerry Roy wrote: >>> >>>> Humphrey, >>>> >>>> This is the best card I have in my whole pile. Wouldn't trade it for >>>> anything else. >>>> >>>> It blew me away. You have to combine with their AP/Router >>> to really see >>>> what it can do. Impressive. >>> >>> Of course you do. If the card sends MIMO to an ordinary AP, the AP >>> will only 'see' (hear?) garbage, and visa versa. >>> >>> Now then, tell us how you get 3X range in a LOS environment, and ... >>> "3X compared to what, and in what type of environment, and at >>> what throughput/rate?" >>> >>> Its MIMO, not Magic. >>> >>> Jim >>> >>>> Jerry >>>> >>>> -----Original Message----- >>>> From: [EMAIL PROTECTED] >>> [mailto:[EMAIL PROTECTED] On >>>> Behalf Of Humphrey Cheung >>>> Sent: Monday, November 08, 2004 11:01 AM >>>> To: [EMAIL PROTECTED] >>>> Subject: [SOCALWUG] Parkervision cards >>>> >>>> Hello, >>>> >>>> Anyone have experience with the Parkervision wifi cards? >>> They claim no >>>> deadspots in your house, etc etc. >>>> >>>> We thought it was voodoo, so we asked for a review unit... I'll be >>>> damned I >>>> get triple the range. I'll try a wardrive today with the card. >>>> >>>> Humphrey Cheung >>>> Editor - Tomshardware >>> >>> >>> >>> --- >>> Incoming mail is certified Virus Free. >>> Checked by AVG anti-virus system (http://www.grisoft.com). >>> Version: 6.0.784 / Virus Database: 530 - Release Date: 10/27/2004 >>> >>> >> >> --- >> Outgoing mail is certified Virus Free. >> Checked by AVG anti-virus system (http://www.grisoft.com). >> Version: 6.0.784 / Virus Database: 530 - Release Date: 10/27/2004 >> >
