HELP WANTED FOR FITTING OUT TUNNEL SYSTEM WITH ANTENNA NETWORK
I am designing a wireless ethernet radio network for a rail system using Cisco Arlan AP350 Access Points and WGB350 Work Group Bridge radios . Comunications will be between a land based LAN and mobile trains in the rail system. I would appreciate help from anyone with experience in designing such a network. In particular, the anttenas used, thier location etc ...
Re: HELP WANTED FOR FITTING OUT TUNNEL SYSTEM WITH ANTENNA NETWO
Dependent on the tunnel length, size, and construction methods you may want to look at a product such as "Radiating Cable" or leaky cable as we use to call it. Basically it is a high quality transmission line that has a series of milled holes or apertures along the outer conductor, which allow the RF energy to pass thru. The cable tends to provide a lower level of energy at a given distance from the antenna, but fairly consistent along a great distance, useful if the tunnel is curved. This may or may not be the right solution or even a cost effective solution but one you should look into. Check with Tessco ( www.tessco.com) as they distribute this from several vendors.
Dont forget to include the potential loss from making the transition from the connector on the AP or Bridge to the cable (typically a N series connector) when looking at a power budget.
Its been years since I used it with some 900MHz radios but it did the trick in specific applications.
Transferring Crash file from standby: Login to the Active WLC in HA.
From CLI: (Cisco Controller) >transfer upload datatype crash (Cisco
Controller) >transfer upload filename (Cisco
Controller) >transfer upload mode tftp (Cisco Controller) >transfer
This is the start of a display filter cross reference between Wireshark
and OmniPeek. The 1st installment is a table of advanced filters. More
filters will be added as time allows. It is a living doc, so check back
for changes every so often Please feel f...