Re: [WISPA] Second 900mhz AP
Minor note: Moto uses 8MHz channels and the middle channel for maximum separation is 915. Dave Jerry Richardson wrote: I did not realize this was the wireless list and not the Moto List Moto uses 9MHz channels so the 3 non-overlapping are 906, 914, and 924 - CH1 = 902-910 - CH2 = 911-919 - CH3 = 920-928 I can't speak from experience to co-locating multiple 900AP's on a tower without sync. I would think trying to get 3 10MHz channels on the same tower would present a significant limit to the # of subs you could get per AP. However 5MHz channels might provide some decent scalability as long as you aren't trying to provide speeds much more than 3Mbps down but that's just a guess - Jerry -Original Message- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of Philip Dorr Sent: Sunday, August 08, 2010 5:32 PM To: WISPA General List Subject: Re: [WISPA] Second 900mhz AP Was that even legal? I thought the 900 MHz spectrum that we are allowed was 902-928. On Sun, Aug 8, 2010 at 7:00 PM, Jerry Richardson wrote: > Before smartmeters (BC) we had 3 integrated 900's on the same tower at > 906, 914, and 930 without issue. > > It's really about your available spectrum. You need a minimum of 9MHz > spacing. > > 75'of cable should not be a problem other than loss is loss. I would > put the AP on the back of the antenna > > > > Jerry Richardson > Sent Mobile > > On Aug 8, 2010, at 3:05 PM, "~NGL~" wrote: > >> I need to add a second AP on a tower and need help. >> How far apart must the 90 degree sector antenna be placed? >> Can they be the same polarity? >> Can I run LMR-400 to them about 70ft? >> Anything else I should consider? >> Thanx >> NGL >> >> >> --- >> --- >> --- >> --- >> >> 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! 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! 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! 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! 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/
Re: [WISPA] Second 900mhz AP
I did not realize this was the wireless list and not the Moto List Moto uses 9MHz channels so the 3 non-overlapping are 906, 914, and 924 - CH1 = 902-910 - CH2 = 911-919 - CH3 = 920-928 I can't speak from experience to co-locating multiple 900AP's on a tower without sync. I would think trying to get 3 10MHz channels on the same tower would present a significant limit to the # of subs you could get per AP. However 5MHz channels might provide some decent scalability as long as you aren't trying to provide speeds much more than 3Mbps down but that's just a guess - Jerry -Original Message- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of Philip Dorr Sent: Sunday, August 08, 2010 5:32 PM To: WISPA General List Subject: Re: [WISPA] Second 900mhz AP Was that even legal? I thought the 900 MHz spectrum that we are allowed was 902-928. On Sun, Aug 8, 2010 at 7:00 PM, Jerry Richardson wrote: > Before smartmeters (BC) we had 3 integrated 900's on the same tower at > 906, 914, and 930 without issue. > > It's really about your available spectrum. You need a minimum of 9MHz > spacing. > > 75'of cable should not be a problem other than loss is loss. I would > put the AP on the back of the antenna > > > > Jerry Richardson > Sent Mobile > > On Aug 8, 2010, at 3:05 PM, "~NGL~" wrote: > >> I need to add a second AP on a tower and need help. >> How far apart must the 90 degree sector antenna be placed? >> Can they be the same polarity? >> Can I run LMR-400 to them about 70ft? >> Anything else I should consider? >> Thanx >> NGL >> >> >> --- >> --- >> --- >> --- >> >> 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! 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! 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! 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/
Re: [WISPA] Second 900mhz AP
Was that even legal? I thought the 900 MHz spectrum that we are allowed was 902-928. On Sun, Aug 8, 2010 at 7:00 PM, Jerry Richardson wrote: > Before smartmeters (BC) we had 3 integrated 900's on the same tower at > 906, 914, and 930 without issue. > > It's really about your available spectrum. You need a minimum of 9MHz > spacing. > > 75'of cable should not be a problem other than loss is loss. I would > put the AP on the back of the antenna > > > > Jerry Richardson > Sent Mobile > > On Aug 8, 2010, at 3:05 PM, "~NGL~" wrote: > >> I need to add a second AP on a tower and need help. >> How far apart must the 90 degree sector antenna be placed? >> Can they be the same polarity? >> Can I run LMR-400 to them about 70ft? >> Anything else I should consider? >> Thanx >> NGL >> >> >> --- >> --- >> --- >> --- >> >> 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! 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! 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/
Re: [WISPA] Second 900mhz AP
Before smartmeters (BC) we had 3 integrated 900's on the same tower at 906, 914, and 930 without issue. It's really about your available spectrum. You need a minimum of 9MHz spacing. 75'of cable should not be a problem other than loss is loss. I would put the AP on the back of the antenna Jerry Richardson Sent Mobile On Aug 8, 2010, at 3:05 PM, "~NGL~" wrote: > I need to add a second AP on a tower and need help. > How far apart must the 90 degree sector antenna be placed? > Can they be the same polarity? > Can I run LMR-400 to them about 70ft? > Anything else I should consider? > Thanx > NGL > > > --- > --- > --- > --- > > 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! 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/
Re: [WISPA] Second 900mhz AP
I have several sites that have multiple 900MHz APs using 10MHz channels. Obviously the more separation the better, but I have a couple of sites were the separation about 18". Both vertical polarity. I have not noticed any issues. I run 900MHz on LMR400 up to 100'. Over that I use LMR600. I have one at 140'. ~NGL~ wrote: > I need to add a second AP on a tower and need help. > How far apart must the 90 degree sector antenna be placed? > Can they be the same polarity? > Can I run LMR-400 to them about 70ft? > Anything else I should consider? > Thanx > NGL > > > > 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/ > > > -- Scott Reed Sr. Systems Engineer GAB Midwest 1-800-363-1544 x2241 1-260-827-2241 Cell: 260-273-7239 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] Second 900mhz AP
I need to add a second AP on a tower and need help. How far apart must the 90 degree sector antenna be placed? Can they be the same polarity? Can I run LMR-400 to them about 70ft? Anything else I should consider? Thanx NGL 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/
