Re: [WISPA] Ubiquiti PTMP Antenna Selection

2009-12-17 Thread Marlon K. Schafer
We covered that pretty well at the FCC one day.  There are very specific 
rules you have to follow to avoid the 3 for one rule.  I can be done, just 
not easily.
marlon

- Original Message - 
From: Stuart Pierce spie...@avolve.net
To: WISPA General List wireless@wispa.org
Sent: Wednesday, December 16, 2009 4:39 PM
Subject: Re: [WISPA] Ubiquiti PTMP Antenna Selection


 Then again there is that part about a 120* sector and the thinking that 
 each cpe is in fact acting like a ptp system, since the ap only talks to 
 one cpe at a time.

 Just to throw another log on the fire.

 The 120* part comes from what I understood from someone talking about this 
 type of discussion from the FCC.

 -- Original Message --
 From: Matt Jenkins m...@smarterbroadband.net
 Reply-To: WISPA General List wireless@wispa.org
 Date:  Tue, 15 Dec 2009 12:39:24 -0800

They are perfectly legal until you connect up that second CPE then they
are operating in a PTMP fashion and you (the operator) are violating FCC
rules.

Gino Villarini wrote:
 Yeap! how they are selling the units as APs with the sectors ...hmmm

 Gino A. Villarini
 g...@aeronetpr.com
 Aeronet Wireless Broadband Corp.
 787.273.4143

 -Original Message-
 From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On
 Behalf Of Matt Jenkins
 Sent: Tuesday, December 15, 2009 2:05 PM
 To: WISPA General List
 Subject: Re: [WISPA] Ubiquiti PTMP Antenna Selection

 According to Ubiquiti themselves and the FCC:

 This equipment is required to be professionally installed

 The device has been designed to operate with the antennas listed below
 and having a maximum gain of 30dBi. Antennas not included in this list
 or having a gain greater than 30dBi are strictly prohibited for use with

 this device. The required antenna impedance is 50 ohms

 2x2 Point-To-Point Use

 Ubiquiti RD-5G-30

 Ubiquiti RP-5G-24

 Ubiquiti AMS-5G-20

 1x1 Point-To-Point Use

 Ubiquiti AG-5G-30

 2x2 Point-To-MultiPoint Use

 Ubiquiti O-5G-7

 Operation is restricted to Point-To-Point use for antenass other than
 the Ubiquiti O-5G-7 listed above.


 That means the only legal antenna is a 7db omni for PTMP use.

 Scott Piehn wrote:
 Looking for input on which antennas to use
 Was mentioned briefly on one of the lists that using a 16-120 instead
 of a 19-120 would give better coverage, We have 7 or so 19-120's
 deployed and they just seem to be very particular.  seems about 60
 degree wide, and 2 mile out sweet spot.
 Looking based on
 covering out to 5 miles max (think that is the current limit of NS5M)
 tower is 200 - 250 on a hill.  could be up to 350' above people
 or tower (antenna) is 100' above people
 360 degree around tower


 Apologies if this is the wrong list, can't keep them straight with
 what is allowed on which.
 -
 Scott Piehn



 
 
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Re: [WISPA] Ubiquiti PTMP Antenna Selection

2009-12-17 Thread Robert West
So does Marlon the Magician have a paper written on the ways and means to
get around the 3 to one rule or have we finally found new ground?

:)

Bob-


-Original Message-
From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On
Behalf Of Marlon K. Schafer
Sent: Thursday, December 17, 2009 3:05 PM
To: spie...@avolve.net; WISPA General List
Subject: Re: [WISPA] Ubiquiti PTMP Antenna Selection

We covered that pretty well at the FCC one day.  There are very specific 
rules you have to follow to avoid the 3 for one rule.  I can be done, just 
not easily.
marlon

- Original Message - 
From: Stuart Pierce spie...@avolve.net
To: WISPA General List wireless@wispa.org
Sent: Wednesday, December 16, 2009 4:39 PM
Subject: Re: [WISPA] Ubiquiti PTMP Antenna Selection


 Then again there is that part about a 120* sector and the thinking that 
 each cpe is in fact acting like a ptp system, since the ap only talks to 
 one cpe at a time.

 Just to throw another log on the fire.

 The 120* part comes from what I understood from someone talking about this

 type of discussion from the FCC.

 -- Original Message --
 From: Matt Jenkins m...@smarterbroadband.net
 Reply-To: WISPA General List wireless@wispa.org
 Date:  Tue, 15 Dec 2009 12:39:24 -0800

They are perfectly legal until you connect up that second CPE then they
are operating in a PTMP fashion and you (the operator) are violating FCC
rules.

Gino Villarini wrote:
 Yeap! how they are selling the units as APs with the sectors ...hmmm

 Gino A. Villarini
 g...@aeronetpr.com
 Aeronet Wireless Broadband Corp.
 787.273.4143

 -Original Message-
 From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On
 Behalf Of Matt Jenkins
 Sent: Tuesday, December 15, 2009 2:05 PM
 To: WISPA General List
 Subject: Re: [WISPA] Ubiquiti PTMP Antenna Selection

 According to Ubiquiti themselves and the FCC:

 This equipment is required to be professionally installed

 The device has been designed to operate with the antennas listed below
 and having a maximum gain of 30dBi. Antennas not included in this list
 or having a gain greater than 30dBi are strictly prohibited for use with

 this device. The required antenna impedance is 50 ohms

 2x2 Point-To-Point Use

 Ubiquiti RD-5G-30

 Ubiquiti RP-5G-24

 Ubiquiti AMS-5G-20

 1x1 Point-To-Point Use

 Ubiquiti AG-5G-30

 2x2 Point-To-MultiPoint Use

 Ubiquiti O-5G-7

 Operation is restricted to Point-To-Point use for antenass other than
 the Ubiquiti O-5G-7 listed above.


 That means the only legal antenna is a 7db omni for PTMP use.

 Scott Piehn wrote:
 Looking for input on which antennas to use
 Was mentioned briefly on one of the lists that using a 16-120 instead
 of a 19-120 would give better coverage, We have 7 or so 19-120's
 deployed and they just seem to be very particular.  seems about 60
 degree wide, and 2 mile out sweet spot.
 Looking based on
 covering out to 5 miles max (think that is the current limit of NS5M)
 tower is 200 - 250 on a hill.  could be up to 350' above people
 or tower (antenna) is 100' above people
 360 degree around tower


 Apologies if this is the wrong list, can't keep them straight with
 what is allowed on which.
 -
 Scott Piehn



 
 
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Re: [WISPA] Ubiquiti PTMP Antenna Selection

2009-12-16 Thread os10rules
Technically speaking? What about politics? : - )

Greg

On Dec 15, 2009, at 11:12 PM, Mike Hammett wrote:

 I don't believe there is an official answer.  I believe professional 
 simply means someone that knows their rear from a hole in the ground.
 
 
 -
 Mike Hammett
 Intelligent Computing Solutions
 http://www.ics-il.com
 
 
 
 --
 From: os10ru...@gmail.com
 Sent: Tuesday, December 15, 2009 8:53 PM
 To: WISPA General List wireless@wispa.org
 Subject: Re: [WISPA] Ubiquiti PTMP Antenna Selection
 
 Professionally? Specifically a holder of which FCC license?
 
 On Dec 15, 2009, at 1:04 PM, Matt Jenkins wrote:
 
 According to Ubiquiti themselves and the FCC:
 
 This equipment is required to be professionally installed
 
 The device has been designed to operate with the antennas listed below
 and having a maximum gain of 30dBi. Antennas not included in this list
 or having a gain greater than 30dBi are strictly prohibited for use with
 this device. The required antenna impedance is 50 ohms
 
 2x2 Point-To-Point Use
 
 Ubiquiti RD-5G-30
 
 Ubiquiti RP-5G-24
 
 Ubiquiti AMS-5G-20
 
 1x1 Point-To-Point Use
 
 Ubiquiti AG-5G-30
 
 2x2 Point-To-MultiPoint Use
 
 Ubiquiti O-5G-7
 
 Operation is restricted to Point-To-Point use for antenass other than
 the Ubiquiti O-5G-7 listed above.
 
 
 That means the only legal antenna is a 7db omni for PTMP use.
 
 Scott Piehn wrote:
 Looking for input on which antennas to use
 Was mentioned briefly on one of the lists that using a 16-120 instead of 
 a 19-120 would give better coverage, We have 7 or so 19-120's deployed 
 and they just seem to be very particular.  seems about 60 degree wide, 
 and 2 mile out sweet spot.
 
 Looking based on
 covering out to 5 miles max (think that is the current limit of NS5M)
 tower is 200 - 250 on a hill.  could be up to 350' above people
 or tower (antenna) is 100' above people
 360 degree around tower
 
 
 Apologies if this is the wrong list, can't keep them straight with what 
 is allowed on which.
 
 -
 Scott Piehn
 
 
 
 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/
 
 
 
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Re: [WISPA] Ubiquiti PTMP Antenna Selection

2009-12-16 Thread Stuart Pierce
Then again there is that part about a 120* sector and the thinking that each 
cpe is in fact acting like a ptp system, since the ap only talks to one cpe at 
a time.

Just to throw another log on the fire.

The 120* part comes from what I understood from someone talking about this type 
of discussion from the FCC.

-- Original Message --
From: Matt Jenkins m...@smarterbroadband.net
Reply-To: WISPA General List wireless@wispa.org
Date:  Tue, 15 Dec 2009 12:39:24 -0800

They are perfectly legal until you connect up that second CPE then they 
are operating in a PTMP fashion and you (the operator) are violating FCC 
rules.

Gino Villarini wrote:
 Yeap! how they are selling the units as APs with the sectors ...hmmm 
 
 Gino A. Villarini
 g...@aeronetpr.com
 Aeronet Wireless Broadband Corp.
 787.273.4143
 
 -Original Message-
 From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On
 Behalf Of Matt Jenkins
 Sent: Tuesday, December 15, 2009 2:05 PM
 To: WISPA General List
 Subject: Re: [WISPA] Ubiquiti PTMP Antenna Selection
 
 According to Ubiquiti themselves and the FCC:
 
 This equipment is required to be professionally installed
 
 The device has been designed to operate with the antennas listed below 
 and having a maximum gain of 30dBi. Antennas not included in this list 
 or having a gain greater than 30dBi are strictly prohibited for use with
 
 this device. The required antenna impedance is 50 ohms
 
 2x2 Point-To-Point Use
 
 Ubiquiti RD-5G-30
 
 Ubiquiti RP-5G-24
 
 Ubiquiti AMS-5G-20
 
 1x1 Point-To-Point Use
 
 Ubiquiti AG-5G-30
 
 2x2 Point-To-MultiPoint Use
 
 Ubiquiti O-5G-7
 
 Operation is restricted to Point-To-Point use for antenass other than 
 the Ubiquiti O-5G-7 listed above.
 
 
 That means the only legal antenna is a 7db omni for PTMP use.
 
 Scott Piehn wrote:
 Looking for input on which antennas to use
 Was mentioned briefly on one of the lists that using a 16-120 instead
 of a 19-120 would give better coverage, We have 7 or so 19-120's
 deployed and they just seem to be very particular.  seems about 60
 degree wide, and 2 mile out sweet spot.  
 Looking based on 
 covering out to 5 miles max (think that is the current limit of NS5M)
 tower is 200 - 250 on a hill.  could be up to 350' above people
 or tower (antenna) is 100' above people
 360 degree around tower


 Apologies if this is the wrong list, can't keep them straight with
 what is allowed on which.
 -
 Scott Piehn



 
 
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Re: [WISPA] Ubiquiti PTMP Antenna Selection

2009-12-15 Thread Matt Jenkins
According to Ubiquiti themselves and the FCC:

This equipment is required to be professionally installed

The device has been designed to operate with the antennas listed below 
and having a maximum gain of 30dBi. Antennas not included in this list 
or having a gain greater than 30dBi are strictly prohibited for use with 
this device. The required antenna impedance is 50 ohms

2x2 Point-To-Point Use

Ubiquiti RD-5G-30

Ubiquiti RP-5G-24

Ubiquiti AMS-5G-20

1x1 Point-To-Point Use

Ubiquiti AG-5G-30

2x2 Point-To-MultiPoint Use

Ubiquiti O-5G-7

Operation is restricted to Point-To-Point use for antenass other than 
the Ubiquiti O-5G-7 listed above.


That means the only legal antenna is a 7db omni for PTMP use.

Scott Piehn wrote:
 Looking for input on which antennas to use
 Was mentioned briefly on one of the lists that using a 16-120 instead of a 
 19-120 would give better coverage, We have 7 or so 19-120's deployed and they 
 just seem to be very particular.  seems about 60 degree wide, and 2 mile 
 out sweet spot.  
 
 Looking based on 
 covering out to 5 miles max (think that is the current limit of NS5M)
 tower is 200 - 250 on a hill.  could be up to 350' above people
 or tower (antenna) is 100' above people
 360 degree around tower
 
 
 Apologies if this is the wrong list, can't keep them straight with what is 
 allowed on which.
 
 -
 Scott Piehn
 
 
 
 WISPA Wants You! Join today!
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 WISPA Wireless List: wireless@wispa.org
 
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Re: [WISPA] Ubiquiti PTMP Antenna Selection

2009-12-15 Thread Gino Villarini
Yeap! how they are selling the units as APs with the sectors ...hmmm 

Gino A. Villarini
g...@aeronetpr.com
Aeronet Wireless Broadband Corp.
787.273.4143

-Original Message-
From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On
Behalf Of Matt Jenkins
Sent: Tuesday, December 15, 2009 2:05 PM
To: WISPA General List
Subject: Re: [WISPA] Ubiquiti PTMP Antenna Selection

According to Ubiquiti themselves and the FCC:

This equipment is required to be professionally installed

The device has been designed to operate with the antennas listed below 
and having a maximum gain of 30dBi. Antennas not included in this list 
or having a gain greater than 30dBi are strictly prohibited for use with

this device. The required antenna impedance is 50 ohms

2x2 Point-To-Point Use

Ubiquiti RD-5G-30

Ubiquiti RP-5G-24

Ubiquiti AMS-5G-20

1x1 Point-To-Point Use

Ubiquiti AG-5G-30

2x2 Point-To-MultiPoint Use

Ubiquiti O-5G-7

Operation is restricted to Point-To-Point use for antenass other than 
the Ubiquiti O-5G-7 listed above.


That means the only legal antenna is a 7db omni for PTMP use.

Scott Piehn wrote:
 Looking for input on which antennas to use
 Was mentioned briefly on one of the lists that using a 16-120 instead
of a 19-120 would give better coverage, We have 7 or so 19-120's
deployed and they just seem to be very particular.  seems about 60
degree wide, and 2 mile out sweet spot.  
 
 Looking based on 
 covering out to 5 miles max (think that is the current limit of NS5M)
 tower is 200 - 250 on a hill.  could be up to 350' above people
 or tower (antenna) is 100' above people
 360 degree around tower
 
 
 Apologies if this is the wrong list, can't keep them straight with
what is allowed on which.
 
 -
 Scott Piehn
 
 



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Re: [WISPA] Ubiquiti PTMP Antenna Selection

2009-12-15 Thread Mike
Is that saying any antenna with less than 30dBi gain is within the 
rules?   Have they relaxed the rules on certification?  Just curious.


At 12:04 PM 12/15/2009, Matt wrote:
According to Ubiquiti themselves and the FCC:

This equipment is required to be professionally installed

The device has been designed to operate with the antennas listed below
and having a maximum gain of 30dBi. Antennas not included in this list
or having a gain greater than 30dBi are strictly prohibited for use with
this device. The required antenna impedance is 50 ohms

... list deleted 





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Re: [WISPA] Ubiquiti PTMP Antenna Selection

2009-12-15 Thread Tom DeReggi
 Have they relaxed the rules on certification?

No they have not.

Most likely Ubiquiti has done this to avoid having to put peak power limits 
on their radio hardware.
26db radio + 7 dbi omni = 33db, less than 36db allowable limit.

If they included larger sector antennas to be certified with the hardware, 
they might get asked to hardset reduce max power of the radios, to comply 
with FCC EIRP limits for that specific configuration.

However, if a professional installer uses a higher gain antenns, such as a 
20db sector, and manually sets the transmit power of the radio down to 16db, 
they are still within legal Part-15 EIRP rules.
We've been through this before... individually the parts are FCC certified 
under modular component rules (example a mpci card in a laptop) and that 
might be all thats necessary to allow the parts to be legally sold and 
distributed.  The same rules that would apply to StarOS, Mikrotik, or any 
OEM product apply in the same way to Ubiquiti.

Allthough it might be evading the issue through a loop hole, it is the only 
possible way to enable a single product to be interchangeable between both a 
PTP and PTMP use, and not have the PTP use severally compromised when used 
in PTP.

It should be noted that in 5.8G a CPE is allowed to follow PTP rules because 
it is being used in a PTP way, so a 30dbi antenna is certified for use on 
the CPE of a PtMP system.

That is my take on it.

Tom DeReggi
RapidDSL  Wireless, Inc
IntAirNet- Fixed Wireless Broadband


- Original Message - 
From: Mike m...@aweiowa.com
To: WISPA General List wireless@wispa.org
Sent: Tuesday, December 15, 2009 1:33 PM
Subject: Re: [WISPA] Ubiquiti PTMP Antenna Selection


 Is that saying any antenna with less than 30dBi gain is within the
 rules?   Have they relaxed the rules on certification?  Just curious.


 At 12:04 PM 12/15/2009, Matt wrote:
According to Ubiquiti themselves and the FCC:

This equipment is required to be professionally installed

The device has been designed to operate with the antennas listed below
and having a maximum gain of 30dBi. Antennas not included in this list
or having a gain greater than 30dBi are strictly prohibited for use with
this device. The required antenna impedance is 50 ohms

 ... list deleted




 
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Re: [WISPA] Ubiquiti PTMP Antenna Selection

2009-12-15 Thread Matt Jenkins
They are perfectly legal until you connect up that second CPE then they 
are operating in a PTMP fashion and you (the operator) are violating FCC 
rules.

Gino Villarini wrote:
 Yeap! how they are selling the units as APs with the sectors ...hmmm 
 
 Gino A. Villarini
 g...@aeronetpr.com
 Aeronet Wireless Broadband Corp.
 787.273.4143
 
 -Original Message-
 From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On
 Behalf Of Matt Jenkins
 Sent: Tuesday, December 15, 2009 2:05 PM
 To: WISPA General List
 Subject: Re: [WISPA] Ubiquiti PTMP Antenna Selection
 
 According to Ubiquiti themselves and the FCC:
 
 This equipment is required to be professionally installed
 
 The device has been designed to operate with the antennas listed below 
 and having a maximum gain of 30dBi. Antennas not included in this list 
 or having a gain greater than 30dBi are strictly prohibited for use with
 
 this device. The required antenna impedance is 50 ohms
 
 2x2 Point-To-Point Use
 
 Ubiquiti RD-5G-30
 
 Ubiquiti RP-5G-24
 
 Ubiquiti AMS-5G-20
 
 1x1 Point-To-Point Use
 
 Ubiquiti AG-5G-30
 
 2x2 Point-To-MultiPoint Use
 
 Ubiquiti O-5G-7
 
 Operation is restricted to Point-To-Point use for antenass other than 
 the Ubiquiti O-5G-7 listed above.
 
 
 That means the only legal antenna is a 7db omni for PTMP use.
 
 Scott Piehn wrote:
 Looking for input on which antennas to use
 Was mentioned briefly on one of the lists that using a 16-120 instead
 of a 19-120 would give better coverage, We have 7 or so 19-120's
 deployed and they just seem to be very particular.  seems about 60
 degree wide, and 2 mile out sweet spot.  
 Looking based on 
 covering out to 5 miles max (think that is the current limit of NS5M)
 tower is 200 - 250 on a hill.  could be up to 350' above people
 or tower (antenna) is 100' above people
 360 degree around tower


 Apologies if this is the wrong list, can't keep them straight with
 what is allowed on which.
 -
 Scott Piehn



 
 
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Re: [WISPA] Ubiquiti PTMP Antenna Selection

2009-12-15 Thread Robert West
My head is cloudy here..  So  5.8 CPE can be used with a 30dbi antenna?
I can see that but it that true that it can be considered a ptp just because
it's only talking to one far point yet the AP is ptmp?  I see the logic but
the FCC will go for that?  

Bob-


-Original Message-
From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On
Behalf Of Tom DeReggi
Sent: Tuesday, December 15, 2009 3:05 PM
To: WISPA General List
Subject: Re: [WISPA] Ubiquiti PTMP Antenna Selection

 Have they relaxed the rules on certification?

No they have not.

Most likely Ubiquiti has done this to avoid having to put peak power limits 
on their radio hardware.
26db radio + 7 dbi omni = 33db, less than 36db allowable limit.

If they included larger sector antennas to be certified with the hardware, 
they might get asked to hardset reduce max power of the radios, to comply 
with FCC EIRP limits for that specific configuration.

However, if a professional installer uses a higher gain antenns, such as a 
20db sector, and manually sets the transmit power of the radio down to 16db,

they are still within legal Part-15 EIRP rules.
We've been through this before... individually the parts are FCC certified 
under modular component rules (example a mpci card in a laptop) and that 
might be all thats necessary to allow the parts to be legally sold and 
distributed.  The same rules that would apply to StarOS, Mikrotik, or any 
OEM product apply in the same way to Ubiquiti.

Allthough it might be evading the issue through a loop hole, it is the only 
possible way to enable a single product to be interchangeable between both a

PTP and PTMP use, and not have the PTP use severally compromised when used 
in PTP.

It should be noted that in 5.8G a CPE is allowed to follow PTP rules because

it is being used in a PTP way, so a 30dbi antenna is certified for use on 
the CPE of a PtMP system.

That is my take on it.

Tom DeReggi
RapidDSL  Wireless, Inc
IntAirNet- Fixed Wireless Broadband


- Original Message - 
From: Mike m...@aweiowa.com
To: WISPA General List wireless@wispa.org
Sent: Tuesday, December 15, 2009 1:33 PM
Subject: Re: [WISPA] Ubiquiti PTMP Antenna Selection


 Is that saying any antenna with less than 30dBi gain is within the
 rules?   Have they relaxed the rules on certification?  Just curious.


 At 12:04 PM 12/15/2009, Matt wrote:
According to Ubiquiti themselves and the FCC:

This equipment is required to be professionally installed

The device has been designed to operate with the antennas listed below
and having a maximum gain of 30dBi. Antennas not included in this list
or having a gain greater than 30dBi are strictly prohibited for use with
this device. The required antenna impedance is 50 ohms

 ... list deleted







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Re: [WISPA] Ubiquiti PTMP Antenna Selection

2009-12-15 Thread os10rules
Professionally? Specifically a holder of which FCC license?

On Dec 15, 2009, at 1:04 PM, Matt Jenkins wrote:

 According to Ubiquiti themselves and the FCC:
 
 This equipment is required to be professionally installed
 
 The device has been designed to operate with the antennas listed below 
 and having a maximum gain of 30dBi. Antennas not included in this list 
 or having a gain greater than 30dBi are strictly prohibited for use with 
 this device. The required antenna impedance is 50 ohms
 
 2x2 Point-To-Point Use
 
 Ubiquiti RD-5G-30
 
 Ubiquiti RP-5G-24
 
 Ubiquiti AMS-5G-20
 
 1x1 Point-To-Point Use
 
 Ubiquiti AG-5G-30
 
 2x2 Point-To-MultiPoint Use
 
 Ubiquiti O-5G-7
 
 Operation is restricted to Point-To-Point use for antenass other than 
 the Ubiquiti O-5G-7 listed above.
 
 
 That means the only legal antenna is a 7db omni for PTMP use.
 
 Scott Piehn wrote:
 Looking for input on which antennas to use
 Was mentioned briefly on one of the lists that using a 16-120 instead of a 
 19-120 would give better coverage, We have 7 or so 19-120's deployed and 
 they just seem to be very particular.  seems about 60 degree wide, and 2 
 mile out sweet spot.  
 
 Looking based on 
 covering out to 5 miles max (think that is the current limit of NS5M)
 tower is 200 - 250 on a hill.  could be up to 350' above people
 or tower (antenna) is 100' above people
 360 degree around tower
 
 
 Apologies if this is the wrong list, can't keep them straight with what is 
 allowed on which.
 
 -
 Scott Piehn
 
 
 
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 http://signup.wispa.org/
 
 
 WISPA Wireless List: wireless@wispa.org
 
 Subscribe/Unsubscribe:
 http://lists.wispa.org/mailman/listinfo/wireless
 
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Re: [WISPA] Ubiquiti PTMP Antenna Selection

2009-12-15 Thread MDK
So far as I can tell, there is no real answer to that question.

What is a professional and who is, and how do they become one...  Nobody 
has a good answer for.



--
From: os10ru...@gmail.com
Sent: Tuesday, December 15, 2009 6:53 PM
To: WISPA General List wireless@wispa.org
Subject: Re: [WISPA] Ubiquiti PTMP Antenna Selection

 Professionally? Specifically a holder of which FCC license?

 On Dec 15, 2009, at 1:04 PM, Matt Jenkins wrote:

 According to Ubiquiti themselves and the FCC:

 




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Re: [WISPA] Ubiquiti PTMP Antenna Selection

2009-12-15 Thread Robert West
The proverbial Gray Area open to the interpretation of whomever is looking
to cause you trouble.



-Original Message-
From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On
Behalf Of Mike Hammett
Sent: Tuesday, December 15, 2009 11:12 PM
To: WISPA General List
Subject: Re: [WISPA] Ubiquiti PTMP Antenna Selection

I don't believe there is an official answer.  I believe professional 
simply means someone that knows their rear from a hole in the ground.


-
Mike Hammett
Intelligent Computing Solutions
http://www.ics-il.com



--
From: os10ru...@gmail.com
Sent: Tuesday, December 15, 2009 8:53 PM
To: WISPA General List wireless@wispa.org
Subject: Re: [WISPA] Ubiquiti PTMP Antenna Selection

 Professionally? Specifically a holder of which FCC license?

 On Dec 15, 2009, at 1:04 PM, Matt Jenkins wrote:

 According to Ubiquiti themselves and the FCC:

 This equipment is required to be professionally installed

 The device has been designed to operate with the antennas listed below
 and having a maximum gain of 30dBi. Antennas not included in this list
 or having a gain greater than 30dBi are strictly prohibited for use with
 this device. The required antenna impedance is 50 ohms

 2x2 Point-To-Point Use

 Ubiquiti RD-5G-30

 Ubiquiti RP-5G-24

 Ubiquiti AMS-5G-20

 1x1 Point-To-Point Use

 Ubiquiti AG-5G-30

 2x2 Point-To-MultiPoint Use

 Ubiquiti O-5G-7

 Operation is restricted to Point-To-Point use for antenass other than
 the Ubiquiti O-5G-7 listed above.


 That means the only legal antenna is a 7db omni for PTMP use.

 Scott Piehn wrote:
 Looking for input on which antennas to use
 Was mentioned briefly on one of the lists that using a 16-120 instead of

 a 19-120 would give better coverage, We have 7 or so 19-120's deployed 
 and they just seem to be very particular.  seems about 60 degree wide,

 and 2 mile out sweet spot.

 Looking based on
 covering out to 5 miles max (think that is the current limit of NS5M)
 tower is 200 - 250 on a hill.  could be up to 350' above people
 or tower (antenna) is 100' above people
 360 degree around tower


 Apologies if this is the wrong list, can't keep them straight with what 
 is allowed on which.

 -
 Scott Piehn





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