[WISPA] anyone have SCADA expertise?

2005-12-29 Thread Brett Hays



I have a water tower near one of my 900Mhz ap's 
that's causing me a lot of interference due to the water company's SCADA 
stuff. Does anyone know if the devices they use have channel control in 
terms of switching channels within 900Mhz or are they all over the place all the 
time. I have a sense the water company might do some channel management 
with me, but I wanted to know if their equipment had that capability before I 
made the enquiry.
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Re: [WISPA] anyone have SCADA expertise?

2005-12-29 Thread Tom DeReggi



Much of the SCADA system was Frequency Hopping (all 
over the place). A good combat for thatis a radios that 
supports ARQ.
Also, use Horizontal pol as much as possible. 
Doesn't mean there aren't DSSS ones. Most of the SCADA systems I thought used 
narrow channels, and didn't take a lot of bandwdith. You should 
definatelycontact them, to discuss if you 
know who you are interfering with.The FCC has also requested that we as 
WISPs work hard to work with the local power companies that we interfer with. 
They are the biggest entities fighting to limitus using higher power 
limits in 900.

Tom DeReggiRapidDSL  Wireless, IncIntAirNet- Fixed Wireless 
Broadband



  - Original Message - 
  From: 
  Brett Hays 
  
  To: isp-wireless@isp-wireless.com 
  
  Cc: Conversations over a new WISP Trade 
  Organization 
  Sent: Thursday, December 29, 2005 4:12 
  PM
  Subject: [WISPA] anyone have SCADA 
  expertise?
  
  I have a water tower near one of my 900Mhz ap's 
  that's causing me a lot of interference due to the water company's SCADA 
  stuff. Does anyone know if the devices they use have channel control in 
  terms of switching channels within 900Mhz or are they all over the place all 
  the time. I have a sense the water company might do some channel 
  management with me, but I wanted to know if their equipment had that 
  capability before I made the enquiry.
  
  

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Re: [WISPA] anyone have SCADA expertise?

2005-12-29 Thread Brian Rohrbacher




I've heard most SCADA stories about how
they use all kinds of watts to go a mile or two. Most of the time all
it takes is showing them how to do a link and not over power the crap
out of everything. (from what I have heard)

Brett Hays wrote:

  
  
  
  I have a water tower near one of my
900Mhz ap's that's causing me a lot of interference due to the water
company's SCADA stuff. Does anyone know if the devices they use have
channel control in terms of switching channels within 900Mhz or are
they all over the place all the time. I have a sense the water company
might do some channel management with me, but I wanted to know if their
equipment had that capability before I made the enquiry.


-- 
Brian Rohrbacher
Reliable Internet, LLC
www.reliableinter.net
Cell 269-838-8338

"Caught up in the Air" 1 Thess. 4:17


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