That's good stuff. I wonder why we are still running two coax' on all of our installs. Gotta ask our DTV trainers about that. Still, none of these bands overlap bands we are using so that is a good thing.
----- Original Message ----- From: "Mike Hammett" <[EMAIL PROTECTED]> To: "WISPA General List" <wireless@wispa.org> Sent: Sunday, July 27, 2008 8:15 AM Subject: Re: [WISPA] Direct TV interference from 802.11b client? > http://82.165.144.139/dtvkaku/launch_02.asp > > about 3:25 in the video. > > 250 - 750 MHz > 950 - 1450 MHz > 1650 - 2150 MHz > > That's what travels over the wires. The BBC would only make a difference > on > the 3" cable from the BBC to the receiver. > > > ---------- > Mike Hammett > Intelligent Computing Solutions > http://www.ics-il.com > > > ----- Original Message ----- > From: "Chuck McCown" <[EMAIL PROTECTED]> > To: "WISPA General List" <wireless@wispa.org> > Sent: Friday, July 25, 2008 10:13 AM > Subject: Re: [WISPA] Direct TV interference from 802.11b client? > > >>I think it does as far as the frequencies go. They have added a little >> frequency convertor box to the receive end to allow the receiver to >> select >> which block of IF frequencies it wants. Two inputs allows four blocks of >> frequencies plus LNB switching would allow up to 8 different LNBs to be >> used >> with 2 coax' cables. >> ----- Original Message ----- >> From: "Mike Hammett" <[EMAIL PROTECTED]> >> To: "WISPA General List" <wireless@wispa.org> >> Sent: Friday, July 25, 2008 9:04 AM >> Subject: Re: [WISPA] Direct TV interference from 802.11b client? >> >> >>> That doesn't apply to the new 5 LNB systems, but I don't have the time >>> to >>> figure out what the new ones are. >>> >>> >>> ---------- >>> Mike Hammett >>> Intelligent Computing Solutions >>> http://www.ics-il.com >>> >>> >>> ----- Original Message ----- >>> From: "Chuck McCown" <[EMAIL PROTECTED]> >>> To: "WISPA General List" <wireless@wispa.org> >>> Sent: Friday, July 25, 2008 9:31 AM >>> Subject: Re: [WISPA] Direct TV interference from 802.11b client? >>> >>> >>>> Directv IF frequencies. >>>> Lower IF 950-1450 MHZ >>>> Upper IF 1650-2150 MHz >>>> >>>> So, we are not in the middle of either of those bands. >>>> The IF signal should be stronger than any spur an SM or SU could >>>> produce. >>>> >>>> ----- Original Message ----- >>>> From: "Larry A Weidig" <[EMAIL PROTECTED]> >>>> To: "WISPA General List" <wireless@wispa.org> >>>> Sent: Friday, July 25, 2008 8:25 AM >>>> Subject: Re: [WISPA] Direct TV interference from 802.11b client? >>>> >>>> >>>>> We have seen this probably a couple of times ourselves. For us >>>>> in every instance it was the power supply causing the interference. >>>>> Easy enough to test, unplug the radio but leave the power adapter in >>>>> the >>>>> outlet connected to nothing. If still interference you can try >>>>> swapping >>>>> the power supply or move one of the two to a different circuit if >>>>> possible. >>>>> >>>>> -----Original Message----- >>>>> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] >>>>> On >>>>> Behalf Of Jim Patient >>>>> Sent: Friday, July 25, 2008 9:03 AM >>>>> To: WISPA General List >>>>> Subject: Re: [WISPA] Direct TV interference from 802.11b client? >>>>> >>>>> Are you using the satellite ground block? >>>>> Is your ethernet cable running up with there cable? If so is it >>>>> shielded? >>>>> >>>>> We have a number of installs literally on the same mast because they >>>>> didn't want a second mast. We've never had an issue. We run our own >>>>> ground from the radio to a ground rod and try to keep the cable away >>>>> from the dish cable. >>>>> >>>>> Matt wrote: >>>>>>> I had a customer call. She said she had some time so she was going >>>>> to call >>>>>>> before her satellite guy was going to. The customer has been >>>>> installed for >>>>>>> a couple years, but she swears that her 'pixelated' satellite >>>>> reception on >>>>>>> channels 3,5 and 9 are due to my system. The satellite folks >>>>> replaced the >>>>>>> dish, and head, and finally blamed my equipment mount a couple feet >>>>> to the >>>>>>> side of their dish. This customer claims that when pixelation >>>>> occurs, she >>>>>>> can unplug our equipment and the problems 'disappears'. Lets see, >>>>> 2.4Ghz >>>>>>> and what, 6 or 11G for the dish tv. don't see where on the RF front >>>>> there >>>>>>> is a remote possibility of interference. The coax goes around the >>>>> house, >>>>>>> our cat5 goes thru the crawlspace. Anyone ever have these kinds of >>>>> issues? >>>>>>> The customer expects me to re-install equipment on the other side of >>>>> the >>>>>>> house for free? Any suggestions? >>>>>>> >>>>>> >>>>>> Can you lock the ethernet on a different rate and see if it makes a >>>>> difference? >>>>>> >>>>>> Matt >>>>>> >>>>>> >>>>>> >>>>> ------------------------------------------------------------------------ >>>>> -------- >>>>>> WISPA Wants You! Join today! >>>>>> http://signup.wispa.org/ >>>>>> >>>>> ------------------------------------------------------------------------ >>>>> -------- >>>>>> >>>>>> WISPA Wireless List: wireless@wispa.org >>>>>> >>>>>> Subscribe/Unsubscribe: >>>>>> http://lists.wispa.org/mailman/listinfo/wireless >>>>>> >>>>>> Archives: http://lists.wispa.org/pipermail/wireless/ >>>>>> >>>>> >>>>> >>>>> >>>>> ------------------------------------------------------------------------ >>>>> -------- >>>>> WISPA Wants You! 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