Hello Jack, Passive repeaters have been done to death on other lists I'm on, some of the guys even giving very in depth reasons into why they won't work and what cringly said was a load... in any case I just thought it was interesting...
The only time it might work, and for those of you worried about lightning etc, I saw a passive repeater (flat surface too) used in a periscope design, it served to increase height while decreasing cable runs... and there was one other design, the top was basically a cone and turned a directional signal into omni... -- Best regards, evilbunny mailto:[EMAIL PROTECTED] http://www.SydneyWireless.com - Exercise your communications freedom to make it do what you never thought possible... Saturday, September 21, 2002, 4:45:03 AM, you wrote: JU> Well... it depends. (Depends on what, you ask...) JU> It depends on the distance - the total distance from one radio JU> to the passive repeater and then to the other radio. JU> Briefly put: JU> a) The good news - A passive repeater can help you fill in or extend JU> coverage JU> to an area that has a blocked line-of-sight path. This could be helpful JU> say, in JU> NYC where you need coverage around a corner, for example. JU> b) The bad news - The signal loss with a passive repeater is very high. JU> With low power license-free 802.11b equipment (unlike licensed microwave JU> equipment) we can't just increase the power to make up for the passive JU> repeater JU> losses. Unless the total end-to-end distance is very short, the passive JU> repeater losses JU> mean that not enough signal will reach the far end. JU> In conclusion, if you do decide to experiment with a passive repeater, I'd JU> suggest JU> using not a single flat plane (like in your embedded link) but a pair of JU> high-gain 2.4 GHz JU> antennas connected back-to-back with a short length of low-loss coax. JU> If you need more help calculating the actual amount of signal that will JU> make it JU> to the far end (the link budget), get hold of me off-line. JU> jack JU> evilbunny wrote: >> Hello ptp, >> >> passive repeaters anyone? >> >> http://www.qsl.net/n9zia/pics/passive_repeater.jpg >> >> -- >> Best regards, >> evilbunny mailto:[EMAIL PROTECTED] >> >> http://www.NodeDB.com/NodeDB/sslinfo.php - Free Security Certificates JU> -- JU> Jack Unger ([EMAIL PROTECTED]) JU> President - Wireless InfoNet, Inc. (818) 227-4220 JU> The first and only vendor-neutral Wireless ISP workshop. JU> http://www.ask-wi.com/2002workshops.html JU> -- JU> NYCwireless - http://www.nycwireless.net/ JU> Un/Subscribe: http://lists.nycwireless.net/mailman/listinfo/nycwireless/ JU> Archives: http://lists.nycwireless.net/pipermail/nycwireless/
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