Silicon Investor (SI) -- The First Internet Community

STOCKTALK

We've detected that you're using an ad content blocking browser plug-in or feature. Ads provide a critical source of revenue to the continued operation of Silicon Investor. We ask that you disable ad blocking while on Silicon Investor in the best interests of our community. If you are not using an ad blocker but are still receiving this message, make sure your browser's tracking protection is set to the 'standard' level.

Technology Stocks : The *NEW* Frank Coluccio Technology Forum -- Ignore unavailable to you. Want to Upgrade?

To: Frank A. Coluccio who wrote (428)	7/16/2000 4:44:32 AM
From: Jorj X Mckie	Respond to of 46821

[By the way, what are the concerns, if any, of wireless LAN base stations operating in the proximity of people wearing pacemakers? Just thought I'd ask.. ] I am going to guess (and I do mean guess), that the wattage makes a difference in this case. A microwave will likely be between 600 and 1200 Watts (again, quick web search) and the base stations are going to be about 300 milliwatts (I may have to check on that). EDIT: As a guideline, Cisco's Aironet 340 Access Point is spec'd with a transmit power of 100 mW.

To: Frank A. Coluccio who wrote (428)	7/16/2000 5:02:38 AM
From: axial	Read Replies (2) \| Respond to of 46821

Hi, Frank - Last post for the night. 'By the way, what are the concerns, if any, of wireless LAN base stations operating in the proximity of people wearing pacemakers? Just thought I'd ask..' That question was asked of Hatim, last year. This was his response: 'I do not know about the impact of 2.4GHz spread spectrum products on pace makers; we never performed any studies. However, I can state that the frequency band is the same as that of microwave ovens. With respect to pace makers, our bridges have two advantages over microwave ovens: our bridges are direct sequence which spreads the power over a wider band and they are generally placed outdoors away from pacemakers.' Message 10649939 My impression of transceiver transmit power was that it was ~ 1 watt, but I'll have to check, don't quote me. Using DSSS would further distribute that power. Effects would extremely short (transient). I've never heard reports of any problems in this area of usage. Regards, Jim