Using Cisco's handy antenna calculation tool, here's some numbers to consider:
30w power of the 340 + 13.5dBi Yagi on both ends + NO CABLE = 2M for 7 miles Required antenna height above obstructions = 50 feet 30w power of the 340 + 12dBi omni on both ends + NO CABLE = 2M for 6.2 miles Required antenna height above obstructions = 36 feet 30w power of the 340 + 12dBi omni on one end+ 340 PCM adapter + NO CABLE = 2M for 1.6 miles Required antenna height above obstructions = 23 feet If you can't meet the obstruction requirements, you WILL have reduced range. Adding a cable between AP and antenna will reduce range. Modifying antenna's is probably something the FCC frowns upon, especially if you kill all the 2.4ghz phones in the neighborhood!! Sounds like a fun weekend project!! Let us know how you make out. Jeffrey Reed Classic Networking, Inc. -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Brian Zeitz Sent: Friday, March 15, 2002 9:14 AM To: [EMAIL PROTECTED] Subject: Cisco Aironet [7:38382] I found a document to do a Cisco AIR-AP34xE2C external antenna modification. This modification is to put a high power antenna on a Cisco Aironet. Well, what I wanted to do, is to use this to broadcast the contents of my server to my neighborhood. Kinda like a community Intranet. I live in a metro area, and I am wondering if anyone in this group has every tried anything like this. I also found modifications to bump up the power of the signal on the Aironet. I am just courious if anyone has tried this, and im wordering if anyone has setup plans/Parts for doing something like this. I have found antennas that claim they will go at least = mile or more. I hope this is relavant to this study group, thanks. PS. Could we please have a way to put some people on ignore. Some of the post here I am finding are less then helpful, and filling up my mailbox with political stuff, instead of helpful information. If not, I can make a rule in outlook 2002 to search for certain peoples usernames and thow them in the garbage. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38404&t=38382 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
