Re: [WISPA] GPS Sync / or Sync between devices at site without GPS Question

2011-01-10 Thread Jeromie Reeves
I do not know how the Radwin Sync works. With Canopy, you do not lose
bandwidth unless you do not have the timing the same. You can adjust
settings in such a way as to not step on yourself and still have different
bandwidth profiles with Canopy.

I do not see why sync would lose any bandwidth, unless it is cause now you
only have X Transit tie and Y receive tie instead of X+%Y.

On Sun, Jan 9, 2011 at 2:03 PM, Scott Carullo sc...@brevardwireless.comwrote:

 For the first time I synchronized multiple devices (two backhauls) at a
 tower site to see what it was all about.  All of our gear in the past did
 not have the capability to sync across devices to save spectrum and/or
 reduce interference between local devices.

 In this case I used two Radwin 2000C backhauls with a sync cable between
 them.  Setting up the sync between them was easy however the first thing I
 noticed was that the available bandwidth was cut in half.  Is this typical
 of all synced units?  I guess there would be no more reduction in speed
 after the first two radios synced because if there were more they would all
 fire at the same time any way.  Did I loose bandwidth because they were in
 MIMO mode rather than Diversity mode or is the slowdown just a function of
 the timing reduction to keep things clean?

 Is the UBNT GPS sync gear going to provide less throughput than I currently
 experience when their new sync capable gear comes out?

 Thanks, just trying to get some feedback to learn more about how Syncing
 devices affects their performance.

 Scott Carullo
 Technical Operations
 855-FLSPEED x102





 
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Re: [WISPA] GPS Sync / or Sync between devices at site without GPS Question

2011-01-10 Thread Jerry Richardson
Yes, with wifi based radio systems you can see less throughput with sync than 
without.

With Canopy the DL% is fixed regardless if the AP is getting the sync pulse 
from GPS or generating it itself. i.e. if you set the DL% to 75% it's fixed 
regardless if the bandwidth is being used or not.

With .11 radios the DL% is dynamic and will adjust according to demand (which 
is why they are NOT in sync with other .11 radios). When you sync them, the DL 
is no longer dynamic. So if you had a .11-based BH that has 90% downlink 
traffic and force it to sync the DL% may only be 50% which would look like half.

Does that help?

- Jerry

From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf 
Of Jeromie Reeves
Sent: Monday, January 10, 2011 7:31 AM
To: sc...@brevardwireless.com; WISPA General List
Subject: Re: [WISPA] GPS Sync / or Sync between devices at site without GPS 
Question

I do not know how the Radwin Sync works. With Canopy, you do not lose bandwidth 
unless you do not have the timing the same. You can adjust settings in such a 
way as to not step on yourself and still have different bandwidth profiles with 
Canopy.

I do not see why sync would lose any bandwidth, unless it is cause now you only 
have X Transit tie and Y receive tie instead of X+%Y.
On Sun, Jan 9, 2011 at 2:03 PM, Scott Carullo 
sc...@brevardwireless.commailto:sc...@brevardwireless.com wrote:
For the first time I synchronized multiple devices (two backhauls) at a tower 
site to see what it was all about.  All of our gear in the past did not have 
the capability to sync across devices to save spectrum and/or reduce 
interference between local devices.

In this case I used two Radwin 2000C backhauls with a sync cable between them.  
Setting up the sync between them was easy however the first thing I noticed was 
that the available bandwidth was cut in half.  Is this typical of all synced 
units?  I guess there would be no more reduction in speed after the first two 
radios synced because if there were more they would all fire at the same time 
any way.  Did I loose bandwidth because they were in MIMO mode rather than 
Diversity mode or is the slowdown just a function of the timing reduction to 
keep things clean?

Is the UBNT GPS sync gear going to provide less throughput than I currently 
experience when their new sync capable gear comes out?

Thanks, just trying to get some feedback to learn more about how Syncing 
devices affects their performance.
Scott Carullo
Technical Operations
855-FLSPEED x102

Error! Filename not specified.




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Re: [WISPA] GPS Sync / or Sync between devices at site without GPS Question

2011-01-10 Thread Mike Hammett
Ubiquiti's next software release is supposed to have dynamic ratios with 
sync.


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



On 1/10/2011 11:25 AM, Jerry Richardson wrote:


Yes, with wifi based radio systems you can see less throughput with 
sync than without.


With Canopy the DL% is fixed regardless if the AP is getting the sync 
pulse from GPS or generating it itself. i.e. if you set the DL% to 75% 
it's fixed regardless if the bandwidth is being used or not.


With .11 radios the DL% is dynamic and will adjust according to demand 
(which is why they are NOT in sync with other .11 radios). When you 
sync them, the DL is no longer dynamic. So if you had a .11-based BH 
that has 90% downlink traffic and force it to sync the DL% may only be 
50% which would look like half.


Does that help?

- Jerry

*From:*wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] 
*On Behalf Of *Jeromie Reeves

*Sent:* Monday, January 10, 2011 7:31 AM
*To:* sc...@brevardwireless.com; WISPA General List
*Subject:* Re: [WISPA] GPS Sync / or Sync between devices at site 
without GPS Question


I do not know how the Radwin Sync works. With Canopy, you do not lose 
bandwidth unless you do not have the timing the same. You can adjust 
settings in such a way as to not step on yourself and still have 
different bandwidth profiles with Canopy.


I do not see why sync would lose any bandwidth, unless it is cause now 
you only have X Transit tie and Y receive tie instead of X+%Y.


On Sun, Jan 9, 2011 at 2:03 PM, Scott Carullo 
sc...@brevardwireless.com mailto:sc...@brevardwireless.com wrote:


For the first time I synchronized multiple devices (two backhauls) at 
a tower site to see what it was all about.  All of our gear in the 
past did not have the capability to sync across devices to save 
spectrum and/or reduce interference between local devices.


In this case I used two Radwin 2000C backhauls with a sync cable 
between them.  Setting up the sync between them was easy however the 
first thing I noticed was that the available bandwidth was cut in 
half.  Is this typical of all synced units?  I guess there would be no 
more reduction in speed after the first two radios synced because if 
there were more they would all fire at the same time any way.  Did I 
loose bandwidth because they were in MIMO mode rather than Diversity 
mode or is the slowdown just a function of the timing reduction to 
keep things clean?


Is the UBNT GPS sync gear going to provide less throughput than I 
currently experience when their new sync capable gear comes out?


Thanks, just trying to get some feedback to learn more about how 
Syncing devices affects their performance.


Scott Carullo
Technical Operations
855-FLSPEED x102

*Error! Filename not specified.*





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Re: [WISPA] GPS Sync / or Sync between devices at site without GPS Question

2011-01-10 Thread Jerry Richardson
Right, allows sync between GROUPS. GROUPS can be as large as you want as long 
as the MASTER can be reached via Layer2 in less than 30ms. If you have two 
GROUPS (for example two tower sites) that can hear each other but can't be 
reached via Layer2 or latency goes above 30ms between them, then the MASTERS at 
both towers will need to have fixed DL%

UBNT's GPS implementation is a little different than we are used to, but I like 
that they did away with the CMM concept. I am not sure I like the ide of 
depending on one radio for MASTER sync information. I would like to see some 
code that allows for failover. Something like:
- APRadio1 is MASTER/MASTER
- APRadio2 is SLAVE/MASTER

The rest of the SLAVES in the group look at APRadio11 for sync info and if it's 
not there look at APRadioMAC2

- Jerry

From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf 
Of Mike Hammett
Sent: Monday, January 10, 2011 9:40 AM
To: WISPA General List
Subject: Re: [WISPA] GPS Sync / or Sync between devices at site without GPS 
Question

Ubiquiti's next software release is supposed to have dynamic ratios with sync.




-

Mike Hammett

Intelligent Computing Solutions

http://www.ics-il.com



On 1/10/2011 11:25 AM, Jerry Richardson wrote:
Yes, with wifi based radio systems you can see less throughput with sync than 
without.

With Canopy the DL% is fixed regardless if the AP is getting the sync pulse 
from GPS or generating it itself. i.e. if you set the DL% to 75% it's fixed 
regardless if the bandwidth is being used or not.

With .11 radios the DL% is dynamic and will adjust according to demand (which 
is why they are NOT in sync with other .11 radios). When you sync them, the DL 
is no longer dynamic. So if you had a .11-based BH that has 90% downlink 
traffic and force it to sync the DL% may only be 50% which would look like half.

Does that help?

- Jerry

From: wireless-boun...@wispa.orgmailto:wireless-boun...@wispa.org 
[mailto:wireless-boun...@wispa.org] On Behalf Of Jeromie Reeves
Sent: Monday, January 10, 2011 7:31 AM
To: sc...@brevardwireless.commailto:sc...@brevardwireless.com; WISPA General 
List
Subject: Re: [WISPA] GPS Sync / or Sync between devices at site without GPS 
Question

I do not know how the Radwin Sync works. With Canopy, you do not lose bandwidth 
unless you do not have the timing the same. You can adjust settings in such a 
way as to not step on yourself and still have different bandwidth profiles with 
Canopy.

I do not see why sync would lose any bandwidth, unless it is cause now you only 
have X Transit tie and Y receive tie instead of X+%Y.
On Sun, Jan 9, 2011 at 2:03 PM, Scott Carullo 
sc...@brevardwireless.commailto:sc...@brevardwireless.com wrote:
For the first time I synchronized multiple devices (two backhauls) at a tower 
site to see what it was all about.  All of our gear in the past did not have 
the capability to sync across devices to save spectrum and/or reduce 
interference between local devices.

In this case I used two Radwin 2000C backhauls with a sync cable between them.  
Setting up the sync between them was easy however the first thing I noticed was 
that the available bandwidth was cut in half.  Is this typical of all synced 
units?  I guess there would be no more reduction in speed after the first two 
radios synced because if there were more they would all fire at the same time 
any way.  Did I loose bandwidth because they were in MIMO mode rather than 
Diversity mode or is the slowdown just a function of the timing reduction to 
keep things clean?

Is the UBNT GPS sync gear going to provide less throughput than I currently 
experience when their new sync capable gear comes out?

Thanks, just trying to get some feedback to learn more about how Syncing 
devices affects their performance.
Scott Carullo
Technical Operations
855-FLSPEED x102

Error! Filename not specified.




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Re: [WISPA] GPS Sync / or Sync between devices at site without GPS Question

2011-01-10 Thread Josh Luthman
Am I right in guessing that higher latency will only cause some interference
issues, nothing catastrophic?
On Jan 10, 2011 11:54 AM, Jerry Richardson jrichard...@aircloud.com
wrote:
 Right, allows sync between GROUPS. GROUPS can be as large as you want as
long as the MASTER can be reached via Layer2 in less than 30ms. If you have
two GROUPS (for example two tower sites) that can hear each other but can't
be reached via Layer2 or latency goes above 30ms between them, then the
MASTERS at both towers will need to have fixed DL%

 UBNT's GPS implementation is a little different than we are used to, but I
like that they did away with the CMM concept. I am not sure I like the ide
of depending on one radio for MASTER sync information. I would like to see
some code that allows for failover. Something like:
 - APRadio1 is MASTER/MASTER
 - APRadio2 is SLAVE/MASTER

 The rest of the SLAVES in the group look at APRadio11 for sync info and if
it's not there look at APRadioMAC2

 - Jerry

 From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On
Behalf Of Mike Hammett
 Sent: Monday, January 10, 2011 9:40 AM
 To: WISPA General List
 Subject: Re: [WISPA] GPS Sync / or Sync between devices at site without
GPS Question

 Ubiquiti's next software release is supposed to have dynamic ratios with
sync.




 -

 Mike Hammett

 Intelligent Computing Solutions

 http://www.ics-il.com



 On 1/10/2011 11:25 AM, Jerry Richardson wrote:
 Yes, with wifi based radio systems you can see less throughput with sync
than without.

 With Canopy the DL% is fixed regardless if the AP is getting the sync
pulse from GPS or generating it itself. i.e. if you set the DL% to 75% it's
fixed regardless if the bandwidth is being used or not.

 With .11 radios the DL% is dynamic and will adjust according to demand
(which is why they are NOT in sync with other .11 radios). When you sync
them, the DL is no longer dynamic. So if you had a .11-based BH that has 90%
downlink traffic and force it to sync the DL% may only be 50% which would
look like half.

 Does that help?

 - Jerry

 From: wireless-boun...@wispa.orgmailto:wireless-boun...@wispa.org
[mailto:wireless-boun...@wispa.org] On Behalf Of Jeromie Reeves
 Sent: Monday, January 10, 2011 7:31 AM
 To: sc...@brevardwireless.commailto:sc...@brevardwireless.com; WISPA
General List
 Subject: Re: [WISPA] GPS Sync / or Sync between devices at site without
GPS Question

 I do not know how the Radwin Sync works. With Canopy, you do not lose
bandwidth unless you do not have the timing the same. You can adjust
settings in such a way as to not step on yourself and still have different
bandwidth profiles with Canopy.

 I do not see why sync would lose any bandwidth, unless it is cause now you
only have X Transit tie and Y receive tie instead of X+%Y.
 On Sun, Jan 9, 2011 at 2:03 PM, Scott Carullo sc...@brevardwireless.com
mailto:sc...@brevardwireless.com wrote:
 For the first time I synchronized multiple devices (two backhauls) at a
tower site to see what it was all about. All of our gear in the past did not
have the capability to sync across devices to save spectrum and/or reduce
interference between local devices.

 In this case I used two Radwin 2000C backhauls with a sync cable between
them. Setting up the sync between them was easy however the first thing I
noticed was that the available bandwidth was cut in half. Is this typical of
all synced units? I guess there would be no more reduction in speed after
the first two radios synced because if there were more they would all fire
at the same time any way. Did I loose bandwidth because they were in MIMO
mode rather than Diversity mode or is the slowdown just a function of the
timing reduction to keep things clean?

 Is the UBNT GPS sync gear going to provide less throughput than I
currently experience when their new sync capable gear comes out?

 Thanks, just trying to get some feedback to learn more about how Syncing
devices affects their performance.
 Scott Carullo
 Technical Operations
 855-FLSPEED x102

 Error! Filename not specified.





 WISPA Wants You! Join today!
 http://signup.wispa.org/



 WISPA Wireless List: wireless@wispa.orgmailto:wireless@wispa.org

 Subscribe/Unsubscribe:
 http://lists.wispa.org/mailman/listinfo/wireless

 Archives: http://lists.wispa.org/pipermail/wireless/

 

 No virus found in this message.
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 Version: 10.0.1191 / Virus Database: 1435/3370 - Release Date: 01/09/11












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Re: [WISPA] GPS Sync / or Sync between devices at site without GPS Question

2011-01-10 Thread Jerry Richardson
I think it just falls to unsync'd

- Jerry

From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf 
Of Josh Luthman
Sent: Monday, January 10, 2011 9:59 AM
To: WISPA General List
Subject: Re: [WISPA] GPS Sync / or Sync between devices at site without GPS 
Question


Am I right in guessing that higher latency will only cause some interference 
issues, nothing catastrophic?
On Jan 10, 2011 11:54 AM, Jerry Richardson 
jrichard...@aircloud.commailto:jrichard...@aircloud.com wrote:
 Right, allows sync between GROUPS. GROUPS can be as large as you want as long 
 as the MASTER can be reached via Layer2 in less than 30ms. If you have two 
 GROUPS (for example two tower sites) that can hear each other but can't be 
 reached via Layer2 or latency goes above 30ms between them, then the MASTERS 
 at both towers will need to have fixed DL%

 UBNT's GPS implementation is a little different than we are used to, but I 
 like that they did away with the CMM concept. I am not sure I like the ide of 
 depending on one radio for MASTER sync information. I would like to see some 
 code that allows for failover. Something like:
 - APRadio1 is MASTER/MASTER
 - APRadio2 is SLAVE/MASTER

 The rest of the SLAVES in the group look at APRadio11 for sync info and if 
 it's not there look at APRadioMAC2

 - Jerry

 From: wireless-boun...@wispa.orgmailto:wireless-boun...@wispa.org 
 [mailto:wireless-boun...@wispa.orgmailto:wireless-boun...@wispa.org] On 
 Behalf Of Mike Hammett
 Sent: Monday, January 10, 2011 9:40 AM
 To: WISPA General List
 Subject: Re: [WISPA] GPS Sync / or Sync between devices at site without GPS 
 Question

 Ubiquiti's next software release is supposed to have dynamic ratios with sync.




 -

 Mike Hammett

 Intelligent Computing Solutions

 http://www.ics-il.com



 On 1/10/2011 11:25 AM, Jerry Richardson wrote:
 Yes, with wifi based radio systems you can see less throughput with sync than 
 without.

 With Canopy the DL% is fixed regardless if the AP is getting the sync pulse 
 from GPS or generating it itself. i.e. if you set the DL% to 75% it's fixed 
 regardless if the bandwidth is being used or not.

 With .11 radios the DL% is dynamic and will adjust according to demand (which 
 is why they are NOT in sync with other .11 radios). When you sync them, the 
 DL is no longer dynamic. So if you had a .11-based BH that has 90% downlink 
 traffic and force it to sync the DL% may only be 50% which would look like 
 half.

 Does that help?

 - Jerry

 From: 
 wireless-boun...@wispa.orgmailto:wireless-boun...@wispa.orgmailto:wireless-boun...@wispa.orgmailto:wireless-boun...@wispa.org
  [mailto:wireless-boun...@wispa.orgmailto:wireless-boun...@wispa.org] On 
 Behalf Of Jeromie Reeves
 Sent: Monday, January 10, 2011 7:31 AM
 To: 
 sc...@brevardwireless.commailto:sc...@brevardwireless.commailto:sc...@brevardwireless.commailto:sc...@brevardwireless.com;
  WISPA General List
 Subject: Re: [WISPA] GPS Sync / or Sync between devices at site without GPS 
 Question

 I do not know how the Radwin Sync works. With Canopy, you do not lose 
 bandwidth unless you do not have the timing the same. You can adjust settings 
 in such a way as to not step on yourself and still have different bandwidth 
 profiles with Canopy.

 I do not see why sync would lose any bandwidth, unless it is cause now you 
 only have X Transit tie and Y receive tie instead of X+%Y.
 On Sun, Jan 9, 2011 at 2:03 PM, Scott Carullo 
 sc...@brevardwireless.commailto:sc...@brevardwireless.commailto:sc...@brevardwireless.commailto:sc...@brevardwireless.com
  wrote:
 For the first time I synchronized multiple devices (two backhauls) at a tower 
 site to see what it was all about. All of our gear in the past did not have 
 the capability to sync across devices to save spectrum and/or reduce 
 interference between local devices.

 In this case I used two Radwin 2000C backhauls with a sync cable between 
 them. Setting up the sync between them was easy however the first thing I 
 noticed was that the available bandwidth was cut in half. Is this typical of 
 all synced units? I guess there would be no more reduction in speed after the 
 first two radios synced because if there were more they would all fire at the 
 same time any way. Did I loose bandwidth because they were in MIMO mode 
 rather than Diversity mode or is the slowdown just a function of the timing 
 reduction to keep things clean?

 Is the UBNT GPS sync gear going to provide less throughput than I currently 
 experience when their new sync capable gear comes out?

 Thanks, just trying to get some feedback to learn more about how Syncing 
 devices affects their performance.
 Scott Carullo
 Technical Operations
 855-FLSPEED x102

 Error! Filename not specified.



 
 WISPA Wants You! Join today!
 http://signup.wispa.org

Re: [WISPA] GPS Sync / or Sync between devices at site without GPS Question

2011-01-10 Thread Mike Hammett

It's UDP now.

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



On 1/10/2011 11:54 AM, Jerry Richardson wrote:


Right, allows sync between GROUPS. GROUPS can be as large as you want 
as long as the MASTER can be reached via Layer2 in less than 30ms. If 
you have two GROUPS (for example two tower sites) that can hear each 
other but can't be reached via Layer2 or latency goes above 30ms 
between them, then the MASTERS at both towers will need to have fixed DL%


UBNT's GPS implementation is a little different than we are used to, 
but I like that they did away with the CMM concept. I am not sure I 
like the ide of depending on one radio for MASTER sync information. I 
would like to see some code that allows for failover. Something like:


- APRadio1 is MASTER/MASTER

- APRadio2 is SLAVE/MASTER

The rest of the SLAVES in the group look at APRadio11 for sync info 
and if it's not there look at APRadioMAC2


- Jerry

*From:*wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] 
*On Behalf Of *Mike Hammett

*Sent:* Monday, January 10, 2011 9:40 AM
*To:* WISPA General List
*Subject:* Re: [WISPA] GPS Sync / or Sync between devices at site 
without GPS Question


Ubiquiti's next software release is supposed to have dynamic ratios 
with sync.


  
-

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



On 1/10/2011 11:25 AM, Jerry Richardson wrote:

Yes, with wifi based radio systems you can see less throughput with 
sync than without.


With Canopy the DL% is fixed regardless if the AP is getting the sync 
pulse from GPS or generating it itself. i.e. if you set the DL% to 75% 
it's fixed regardless if the bandwidth is being used or not.


With .11 radios the DL% is dynamic and will adjust according to demand 
(which is why they are NOT in sync with other .11 radios). When you 
sync them, the DL is no longer dynamic. So if you had a .11-based BH 
that has 90% downlink traffic and force it to sync the DL% may only be 
50% which would look like half.


Does that help?

- Jerry

*From:*wireless-boun...@wispa.org mailto:wireless-boun...@wispa.org 
[mailto:wireless-boun...@wispa.org] *On Behalf Of *Jeromie Reeves

*Sent:* Monday, January 10, 2011 7:31 AM
*To:* sc...@brevardwireless.com mailto:sc...@brevardwireless.com; 
WISPA General List
*Subject:* Re: [WISPA] GPS Sync / or Sync between devices at site 
without GPS Question


I do not know how the Radwin Sync works. With Canopy, you do not lose 
bandwidth unless you do not have the timing the same. You can adjust 
settings in such a way as to not step on yourself and still have 
different bandwidth profiles with Canopy.


I do not see why sync would lose any bandwidth, unless it is cause now 
you only have X Transit tie and Y receive tie instead of X+%Y.


On Sun, Jan 9, 2011 at 2:03 PM, Scott Carullo 
sc...@brevardwireless.com mailto:sc...@brevardwireless.com wrote:


For the first time I synchronized multiple devices (two backhauls) at 
a tower site to see what it was all about.  All of our gear in the 
past did not have the capability to sync across devices to save 
spectrum and/or reduce interference between local devices.


In this case I used two Radwin 2000C backhauls with a sync cable 
between them.  Setting up the sync between them was easy however the 
first thing I noticed was that the available bandwidth was cut in 
half.  Is this typical of all synced units?  I guess there would be no 
more reduction in speed after the first two radios synced because if 
there were more they would all fire at the same time any way.  Did I 
loose bandwidth because they were in MIMO mode rather than Diversity 
mode or is the slowdown just a function of the timing reduction to 
keep things clean?


Is the UBNT GPS sync gear going to provide less throughput than I 
currently experience when their new sync capable gear comes out?


Thanks, just trying to get some feedback to learn more about how 
Syncing devices affects their performance.


Scott Carullo
Technical Operations
855-FLSPEED x102

*Error! Filename not specified.*





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WISPA Wireless List:wireless

Re: [WISPA] GPS Sync / or Sync between devices at site without GPS Question

2011-01-10 Thread mike
Yes, it is layer3/udp, but it is in flux. They are implementing backup masters 
as well.

Regards
Michael Baird

- Original Message -
From: Mike Hammett wispawirel...@ics-il.net
To: WISPA General List wireless@wispa.org
Sent: Monday, January 10, 2011 1:16:44 PM
Subject: Re: [WISPA] GPS Sync / or Sync between devices at site without GPS 
Question


It's UDP now. 
-
Mike Hammett
Intelligent Computing Solutions http://www.ics-il.com 
On 1/10/2011 11:54 AM, Jerry Richardson wrote: 




Right, allows sync between GROUPS. GROUPS can be as large as you want as long 
as the MASTER can be reached via Layer2 in less than 30ms. If you have two 
GROUPS (for example two tower sites) that can hear each other but can't be 
reached via Layer2 or latency goes above 30ms between them, then the MASTERS at 
both towers will need to have fixed DL% 



UBNT's GPS implementation is a little different than we are used to, but I like 
that they did away with the CMM concept. I am not sure I like the ide of 
depending on one radio for MASTER sync information. I would like to see some 
code that allows for failover. Something like: 

- APRadio1 is MASTER/MASTER 

- APRadio2 is SLAVE/MASTER 



The rest of the SLAVES in the group look at APRadio11 for sync info and if it's 
not there look at APRadioMAC2 




- Jerry 





From: wireless-boun...@wispa.org [ mailto:wireless-boun...@wispa.org ] On 
Behalf Of Mike Hammett 
Sent: Monday, January 10, 2011 9:40 AM 
To: WISPA General List 
Subject: Re: [WISPA] GPS Sync / or Sync between devices at site without GPS 
Question 



Ubiquiti's next software release is supposed to have dynamic ratios with sync. 

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


On 1/10/2011 11:25 AM, Jerry Richardson wrote: 

Yes, with wifi based radio systems you can see less throughput with sync than 
without. 



With Canopy the DL% is fixed regardless if the AP is getting the sync pulse 
from GPS or generating it itself. i.e. if you set the DL% to 75% it's fixed 
regardless if the bandwidth is being used or not. 



With .11 radios the DL% is dynamic and will adjust according to demand (which 
is why they are NOT in sync with other .11 radios). When you sync them, the DL 
is no longer dynamic. So if you had a .11-based BH that has 90% downlink 
traffic and force it to sync the DL% may only be 50% which would look like 
half. 



Does that help? 



- Jerry 




From: wireless-boun...@wispa.org [ mailto:wireless-boun...@wispa.org ] On 
Behalf Of Jeromie Reeves 
Sent: Monday, January 10, 2011 7:31 AM 
To: sc...@brevardwireless.com ; WISPA General List 
Subject: Re: [WISPA] GPS Sync / or Sync between devices at site without GPS 
Question 



I do not know how the Radwin Sync works. With Canopy, you do not lose bandwidth 
unless you do not have the timing the same. You can adjust settings in such a 
way as to not step on yourself and still have different bandwidth profiles with 
Canopy. 

I do not see why sync would lose any bandwidth, unless it is cause now you only 
have X Transit tie and Y receive tie instead of X+%Y. 


On Sun, Jan 9, 2011 at 2:03 PM, Scott Carullo  sc...@brevardwireless.com  
wrote: 

For the first time I synchronized multiple devices (two backhauls) at a tower 
site to see what it was all about. All of our gear in the past did not have the 
capability to sync across devices to save spectrum and/or reduce interference 
between local devices. 

In this case I used two Radwin 2000C backhauls with a sync cable between them. 
Setting up the sync between them was easy however the first thing I noticed was 
that the available bandwidth was cut in half. Is this typical of all synced 
units? I guess there would be no more reduction in speed after the first two 
radios synced because if there were more they would all fire at the same time 
any way. Did I loose bandwidth because they were in MIMO mode rather than 
Diversity mode or is the slowdown just a function of the timing reduction to 
keep things clean? 

Is the UBNT GPS sync gear going to provide less throughput than I currently 
experience when their new sync capable gear comes out? 

Thanks, just trying to get some feedback to learn more about how Syncing 
devices affects their performance. 


Scott Carullo 
Technical Operations 
855-FLSPEED x102 

Error! Filename not specified. 





 
WISPA Wants You! Join today! 
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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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Version: 10.0.1191 / Virus Database: 1435/3370 - Release Date: 01/09/11 

 WISPA Wants You

Re: [WISPA] GPS Sync / or Sync between devices at site without GPS Question

2011-01-10 Thread Scott Carullo
Its safe to assume that the newer firmware with sync with UBNT will only 
work with the newer gen hardware with the gps support right.  Is there any 
functionality that works like the radwin radios where the two local units 
speak sync between them without GPS?

Even having the ability to sync two radios back to back to reuse spectrum 
would be really nice.

Scott Carullo
Technical Operations
855-FLSPEED x102



From: m...@tc3net.com
Sent: Monday, January 10, 2011 1:19 PM
To: WISPA General List wireless@wispa.org
Subject: Re: [WISPA] GPS Sync / or Sync between devices at site without GPS 
Question

Yes, it is layer3/udp, but it is in flux. They are implementing backup 
masters as well.

Regards
Michael Baird

- Original Message -
From: Mike Hammett wispawirel...@ics-il.net
To: WISPA General List wireless@wispa.org
Sent: Monday, January 10, 2011 1:16:44 PM
Subject: Re: [WISPA] GPS Sync / or Sync between devices at site without GPS 
Question

It's UDP now. 
-
Mike Hammett
Intelligent Computing Solutions http://www.ics-il.com 
On 1/10/2011 11:54 AM, Jerry Richardson wrote: 

Right, allows sync between GROUPS. GROUPS can be as large as you want as 
long as the MASTER can be reached via Layer2 in less than 30ms. If you have 
two GROUPS (for example two tower sites) that can hear each other but can't 
be reached via Layer2 or latency goes above 30ms between them, then the 
MASTERS at both towers will need to have fixed DL% 

UBNT's GPS implementation is a little different than we are used to, but I 
like that they did away with the CMM concept. I am not sure I like the ide 
of depending on one radio for MASTER sync information. I would like to see 
some code that allows for failover. Something like: 

- APRadio1 is MASTER/MASTER 

- APRadio2 is SLAVE/MASTER 

The rest of the SLAVES in the group look at APRadio11 for sync info and if 
it's not there look at APRadioMAC2 

- Jerry 

From: wireless-boun...@wispa.org [ mailto:wireless-boun...@wispa.org ] On 
Behalf Of Mike Hammett 
Sent: Monday, January 10, 2011 9:40 AM 
To: WISPA General List 
Subject: Re: [WISPA] GPS Sync / or Sync between devices at site without GPS 
Question 

Ubiquiti's next software release is supposed to have dynamic ratios with 
sync. 

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

On 1/10/2011 11:25 AM, Jerry Richardson wrote: 

Yes, with wifi based radio systems you can see less throughput with sync 
than without. 

With Canopy the DL% is fixed regardless if the AP is getting the sync pulse 
from GPS or generating it itself. i.e. if you set the DL% to 75% it's fixed 
regardless if the bandwidth is being used or not. 

With .11 radios the DL% is dynamic and will adjust according to demand 
(which is why they are NOT in sync with other .11 radios). When you sync 
them, the DL is no longer dynamic. So if you had a .11-based BH that has 
90% downlink traffic and force it to sync the DL% may only be 50% which 
would look like half. 

Does that help? 

- Jerry 

From: wireless-boun...@wispa.org [ mailto:wireless-boun...@wispa.org ] On 
Behalf Of Jeromie Reeves 
Sent: Monday, January 10, 2011 7:31 AM 
To: sc...@brevardwireless.com ; WISPA General List 
Subject: Re: [WISPA] GPS Sync / or Sync between devices at site without GPS 
Question 

I do not know how the Radwin Sync works. With Canopy, you do not lose 
bandwidth unless you do not have the timing the same. You can adjust 
settings in such a way as to not step on yourself and still have different 
bandwidth profiles with Canopy. 

I do not see why sync would lose any bandwidth, unless it is cause now you 
only have X Transit tie and Y receive tie instead of X+%Y. 

On Sun, Jan 9, 2011 at 2:03 PM, Scott Carullo  sc...@brevardwireless.com  
wrote: 

For the first time I synchronized multiple devices (two backhauls) at a 
tower site to see what it was all about. All of our gear in the past did 
not have the capability to sync across devices to save spectrum and/or 
reduce interference between local devices. 

In this case I used two Radwin 2000C backhauls with a sync cable between 
them. Setting up the sync between them was easy however the first thing I 
noticed was that the available bandwidth was cut in half. Is this typical 
of all synced units? I guess there would be no more reduction in speed 
after the first two radios synced because if there were more they would all 
fire at the same time any way. Did I loose bandwidth because they were in 
MIMO mode rather than Diversity mode or is the slowdown just a function of 
the timing reduction to keep things clean? 

Is the UBNT GPS sync gear going to provide less throughput than I currently 
experience when their new sync capable gear comes out? 

Thanks, just trying to get some feedback to learn more about how Syncing 
devices affects their performance. 

Scott Carullo 
Technical Operations 
855-FLSPEED x102 

Error! Filename not specified

Re: [WISPA] GPS Sync / or Sync between devices at site without GPS Question

2011-01-10 Thread Jerry Richardson
No.
Every AP has a GPS antenna and the hardware to support sync. The timing itself 
is not transported over layer 3, only information regarding DL% and ACK.

- Jerry

From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf 
Of Scott Carullo
Sent: Monday, January 10, 2011 4:56 PM
To: WISPA General List
Subject: Re: [WISPA] GPS Sync / or Sync between devices at site without GPS 
Question

Its safe to assume that the newer firmware with sync with UBNT will only work 
with the newer gen hardware with the gps support right.  Is there any 
functionality that works like the radwin radios where the two local units speak 
sync between them without GPS?

Even having the ability to sync two radios back to back to reuse spectrum would 
be really nice.
Scott Carullo
Technical Operations
855-FLSPEED x102

[http://www.flhsi.com/files/emaillogo.jpg]


From: m...@tc3net.com
Sent: Monday, January 10, 2011 1:19 PM
To: WISPA General List wireless@wispa.org
Subject: Re: [WISPA] GPS Sync / or Sync between devices at site without GPS 
Question

Yes, it is layer3/udp, but it is in flux. They are implementing backup masters 
as well.

Regards
Michael Baird

- Original Message -
From: Mike Hammett wispawirel...@ics-il.net
To: WISPA General List wireless@wispa.org
Sent: Monday, January 10, 2011 1:16:44 PM
Subject: Re: [WISPA] GPS Sync / or Sync between devices at site without GPS 
Question


It's UDP now.
-
Mike Hammett
Intelligent Computing Solutions http://www.ics-il.com
On 1/10/2011 11:54 AM, Jerry Richardson wrote:




Right, allows sync between GROUPS. GROUPS can be as large as you want as long 
as the MASTER can be reached via Layer2 in less than 30ms. If you have two 
GROUPS (for example two tower sites) that can hear each other but can't be 
reached via Layer2 or latency goes above 30ms between them, then the MASTERS at 
both towers will need to have fixed DL%



UBNT's GPS implementation is a little different than we are used to, but I like 
that they did away with the CMM concept. I am not sure I like the ide of 
depending on one radio for MASTER sync information. I would like to see some 
code that allows for failover. Something like:

- APRadio1 is MASTER/MASTER

- APRadio2 is SLAVE/MASTER



The rest of the SLAVES in the group look at APRadio11 for sync info and if it's 
not there look at APRadioMAC2




- Jerry





From: wireless-boun...@wispa.org [ mailto:wireless-boun...@wispa.org ] On 
Behalf Of Mike Hammett
Sent: Monday, January 10, 2011 9:40 AM
To: WISPA General List
Subject: Re: [WISPA] GPS Sync / or Sync between devices at site without GPS 
Question



Ubiquiti's next software release is supposed to have dynamic ratios with sync.

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


On 1/10/2011 11:25 AM, Jerry Richardson wrote:

Yes, with wifi based radio systems you can see less throughput with sync than 
without.



With Canopy the DL% is fixed regardless if the AP is getting the sync pulse 
from GPS or generating it itself. i.e. if you set the DL% to 75% it's fixed 
regardless if the bandwidth is being used or not.



With .11 radios the DL% is dynamic and will adjust according to demand (which 
is why they are NOT in sync with other .11 radios). When you sync them, the DL 
is no longer dynamic. So if you had a .11-based BH that has 90% downlink 
traffic and force it to sync the DL% may only be 50% which would look like half.



Does that help?



- Jerry




From: wireless-boun...@wispa.org [ mailto:wireless-boun...@wispa.org ] On 
Behalf Of Jeromie Reeves
Sent: Monday, January 10, 2011 7:31 AM
To: sc...@brevardwireless.com ; WISPA General List
Subject: Re: [WISPA] GPS Sync / or Sync between devices at site without GPS 
Question



I do not know how the Radwin Sync works. With Canopy, you do not lose bandwidth 
unless you do not have the timing the same. You can adjust settings in such a 
way as to not step on yourself and still have different bandwidth profiles with 
Canopy.

I do not see why sync would lose any bandwidth, unless it is cause now you only 
have X Transit tie and Y receive tie instead of X+%Y.


On Sun, Jan 9, 2011 at 2:03 PM, Scott Carullo  sc...@brevardwireless.com  
wrote:

For the first time I synchronized multiple devices (two backhauls) at a tower 
site to see what it was all about. All of our gear in the past did not have the 
capability to sync across devices to save spectrum and/or reduce interference 
between local devices.

In this case I used two Radwin 2000C backhauls with a sync cable between them. 
Setting up the sync between them was easy however the first thing I noticed was 
that the available bandwidth was cut in half. Is this typical of all synced 
units? I guess there would be no more reduction in speed after the first two 
radios synced because if there were more they would all fire at the same time 
any way. Did I loose bandwidth because they were in MIMO mode rather than

Re: [WISPA] GPS Sync / or Sync between devices at site without GPS Question

2011-01-10 Thread Jerry Richardson
I should mention that you can use your non-GPS radios as stations.

- Jerry

From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf 
Of Jerry Richardson
Sent: Monday, January 10, 2011 5:04 PM
To: sc...@brevardwireless.com; WISPA General List
Subject: Re: [WISPA] GPS Sync / or Sync between devices at site without GPS 
Question

No.
Every AP has a GPS antenna and the hardware to support sync. The timing itself 
is not transported over layer 3, only information regarding DL% and ACK.

- Jerry

From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf 
Of Scott Carullo
Sent: Monday, January 10, 2011 4:56 PM
To: WISPA General List
Subject: Re: [WISPA] GPS Sync / or Sync between devices at site without GPS 
Question

Its safe to assume that the newer firmware with sync with UBNT will only work 
with the newer gen hardware with the gps support right.  Is there any 
functionality that works like the radwin radios where the two local units speak 
sync between them without GPS?

Even having the ability to sync two radios back to back to reuse spectrum would 
be really nice.
Scott Carullo
Technical Operations
855-FLSPEED x102

[http://www.flhsi.com/files/emaillogo.jpg]


From: m...@tc3net.com
Sent: Monday, January 10, 2011 1:19 PM
To: WISPA General List wireless@wispa.org
Subject: Re: [WISPA] GPS Sync / or Sync between devices at site without GPS 
Question

Yes, it is layer3/udp, but it is in flux. They are implementing backup masters 
as well.

Regards
Michael Baird

- Original Message -
From: Mike Hammett wispawirel...@ics-il.net
To: WISPA General List wireless@wispa.org
Sent: Monday, January 10, 2011 1:16:44 PM
Subject: Re: [WISPA] GPS Sync / or Sync between devices at site without GPS 
Question


It's UDP now.
-
Mike Hammett
Intelligent Computing Solutions http://www.ics-il.com
On 1/10/2011 11:54 AM, Jerry Richardson wrote:




Right, allows sync between GROUPS. GROUPS can be as large as you want as long 
as the MASTER can be reached via Layer2 in less than 30ms. If you have two 
GROUPS (for example two tower sites) that can hear each other but can't be 
reached via Layer2 or latency goes above 30ms between them, then the MASTERS at 
both towers will need to have fixed DL%



UBNT's GPS implementation is a little different than we are used to, but I like 
that they did away with the CMM concept. I am not sure I like the ide of 
depending on one radio for MASTER sync information. I would like to see some 
code that allows for failover. Something like:

- APRadio1 is MASTER/MASTER

- APRadio2 is SLAVE/MASTER



The rest of the SLAVES in the group look at APRadio11 for sync info and if it's 
not there look at APRadioMAC2




- Jerry





From: wireless-boun...@wispa.org [ mailto:wireless-boun...@wispa.org ] On 
Behalf Of Mike Hammett
Sent: Monday, January 10, 2011 9:40 AM
To: WISPA General List
Subject: Re: [WISPA] GPS Sync / or Sync between devices at site without GPS 
Question



Ubiquiti's next software release is supposed to have dynamic ratios with sync.

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


On 1/10/2011 11:25 AM, Jerry Richardson wrote:

Yes, with wifi based radio systems you can see less throughput with sync than 
without.



With Canopy the DL% is fixed regardless if the AP is getting the sync pulse 
from GPS or generating it itself. i.e. if you set the DL% to 75% it's fixed 
regardless if the bandwidth is being used or not.



With .11 radios the DL% is dynamic and will adjust according to demand (which 
is why they are NOT in sync with other .11 radios). When you sync them, the DL 
is no longer dynamic. So if you had a .11-based BH that has 90% downlink 
traffic and force it to sync the DL% may only be 50% which would look like half.



Does that help?



- Jerry




From: wireless-boun...@wispa.org [ mailto:wireless-boun...@wispa.org ] On 
Behalf Of Jeromie Reeves
Sent: Monday, January 10, 2011 7:31 AM
To: sc...@brevardwireless.com ; WISPA General List
Subject: Re: [WISPA] GPS Sync / or Sync between devices at site without GPS 
Question



I do not know how the Radwin Sync works. With Canopy, you do not lose bandwidth 
unless you do not have the timing the same. You can adjust settings in such a 
way as to not step on yourself and still have different bandwidth profiles with 
Canopy.

I do not see why sync would lose any bandwidth, unless it is cause now you only 
have X Transit tie and Y receive tie instead of X+%Y.


On Sun, Jan 9, 2011 at 2:03 PM, Scott Carullo  sc...@brevardwireless.com  
wrote:

For the first time I synchronized multiple devices (two backhauls) at a tower 
site to see what it was all about. All of our gear in the past did not have the 
capability to sync across devices to save spectrum and/or reduce interference 
between local devices.

In this case I used two Radwin 2000C backhauls with a sync cable between them. 
Setting up the sync between them was easy

Re: [WISPA] GPS Sync / or Sync between devices at site without GPS Question

2011-01-10 Thread Josh Luthman
Only matters with the AP in termd of tx.
On Jan 10, 2011 6:06 PM, Jerry Richardson jrichard...@aircloud.com
wrote:
 I should mention that you can use your non-GPS radios as stations.

 - Jerry

 From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On
Behalf Of Jerry Richardson
 Sent: Monday, January 10, 2011 5:04 PM
 To: sc...@brevardwireless.com; WISPA General List
 Subject: Re: [WISPA] GPS Sync / or Sync between devices at site without
GPS Question

 No.
 Every AP has a GPS antenna and the hardware to support sync. The timing
itself is not transported over layer 3, only information regarding DL% and
ACK.

 - Jerry

 From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On
Behalf Of Scott Carullo
 Sent: Monday, January 10, 2011 4:56 PM
 To: WISPA General List
 Subject: Re: [WISPA] GPS Sync / or Sync between devices at site without
GPS Question

 Its safe to assume that the newer firmware with sync with UBNT will only
work with the newer gen hardware with the gps support right. Is there any
functionality that works like the radwin radios where the two local units
speak sync between them without GPS?

 Even having the ability to sync two radios back to back to reuse spectrum
would be really nice.
 Scott Carullo
 Technical Operations
 855-FLSPEED x102

 [http://www.flhsi.com/files/emaillogo.jpg]

 
 From: m...@tc3net.com
 Sent: Monday, January 10, 2011 1:19 PM
 To: WISPA General List wireless@wispa.org
 Subject: Re: [WISPA] GPS Sync / or Sync between devices at site without
GPS Question

 Yes, it is layer3/udp, but it is in flux. They are implementing backup
masters as well.

 Regards
 Michael Baird

 - Original Message -
 From: Mike Hammett wispawirel...@ics-il.net
 To: WISPA General List wireless@wispa.org
 Sent: Monday, January 10, 2011 1:16:44 PM
 Subject: Re: [WISPA] GPS Sync / or Sync between devices at site without
GPS Question


 It's UDP now.
 -
 Mike Hammett
 Intelligent Computing Solutions http://www.ics-il.com
 On 1/10/2011 11:54 AM, Jerry Richardson wrote:




 Right, allows sync between GROUPS. GROUPS can be as large as you want as
long as the MASTER can be reached via Layer2 in less than 30ms. If you have
two GROUPS (for example two tower sites) that can hear each other but can't
be reached via Layer2 or latency goes above 30ms between them, then the
MASTERS at both towers will need to have fixed DL%



 UBNT's GPS implementation is a little different than we are used to, but I
like that they did away with the CMM concept. I am not sure I like the ide
of depending on one radio for MASTER sync information. I would like to see
some code that allows for failover. Something like:

 - APRadio1 is MASTER/MASTER

 - APRadio2 is SLAVE/MASTER



 The rest of the SLAVES in the group look at APRadio11 for sync info and if
it's not there look at APRadioMAC2




 - Jerry





 From: wireless-boun...@wispa.org [ mailto:wireless-boun...@wispa.org ] On
Behalf Of Mike Hammett
 Sent: Monday, January 10, 2011 9:40 AM
 To: WISPA General List
 Subject: Re: [WISPA] GPS Sync / or Sync between devices at site without
GPS Question



 Ubiquiti's next software release is supposed to have dynamic ratios with
sync.

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


 On 1/10/2011 11:25 AM, Jerry Richardson wrote:

 Yes, with wifi based radio systems you can see less throughput with sync
than without.



 With Canopy the DL% is fixed regardless if the AP is getting the sync
pulse from GPS or generating it itself. i.e. if you set the DL% to 75% it's
fixed regardless if the bandwidth is being used or not.



 With .11 radios the DL% is dynamic and will adjust according to demand
(which is why they are NOT in sync with other .11 radios). When you sync
them, the DL is no longer dynamic. So if you had a .11-based BH that has 90%
downlink traffic and force it to sync the DL% may only be 50% which would
look like half.



 Does that help?



 - Jerry




 From: wireless-boun...@wispa.org [ mailto:wireless-boun...@wispa.org ] On
Behalf Of Jeromie Reeves
 Sent: Monday, January 10, 2011 7:31 AM
 To: sc...@brevardwireless.com ; WISPA General List
 Subject: Re: [WISPA] GPS Sync / or Sync between devices at site without
GPS Question



 I do not know how the Radwin Sync works. With Canopy, you do not lose
bandwidth unless you do not have the timing the same. You can adjust
settings in such a way as to not step on yourself and still have different
bandwidth profiles with Canopy.

 I do not see why sync would lose any bandwidth, unless it is cause now you
only have X Transit tie and Y receive tie instead of X+%Y.


 On Sun, Jan 9, 2011 at 2:03 PM, Scott Carullo  sc...@brevardwireless.com 
 wrote:

 For the first time I synchronized multiple devices (two backhauls) at a
tower site to see what it was all about. All of our gear in the past did not
have the capability to sync across devices to save spectrum and/or reduce
interference between

[WISPA] GPS Sync / or Sync between devices at site without GPS Question

2011-01-09 Thread Scott Carullo
For the first time I synchronized multiple devices (two backhauls) at a 
tower site to see what it was all about.  All of our gear in the past did 
not have the capability to sync across devices to save spectrum and/or 
reduce interference between local devices.

In this case I used two Radwin 2000C backhauls with a sync cable between 
them.  Setting up the sync between them was easy however the first thing I 
noticed was that the available bandwidth was cut in half.  Is this typical 
of all synced units?  I guess there would be no more reduction in speed 
after the first two radios synced because if there were more they would all 
fire at the same time any way.  Did I loose bandwidth because they were in 
MIMO mode rather than Diversity mode or is the slowdown just a function of 
the timing reduction to keep things clean?

Is the UBNT GPS sync gear going to provide less throughput than I currently 
experience when their new sync capable gear comes out?

Thanks, just trying to get some feedback to learn more about how Syncing 
devices affects their performance.

Scott Carullo
Technical Operations
855-FLSPEED x102





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Re: [WISPA] GPS Sync / or Sync between devices at site without GPS Question

2011-01-09 Thread Jeremie Chism
The alvarion gear I used with their gps card did not affect bandwidth. 

Sent from my iPhone4

On Jan 9, 2011, at 4:03 PM, Scott Carullo sc...@brevardwireless.com wrote:

 For the first time I synchronized multiple devices (two backhauls) at a tower 
 site to see what it was all about.  All of our gear in the past did not have 
 the capability to sync across devices to save spectrum and/or reduce 
 interference between local devices.
 
 In this case I used two Radwin 2000C backhauls with a sync cable between 
 them.  Setting up the sync between them was easy however the first thing I 
 noticed was that the available bandwidth was cut in half.  Is this typical of 
 all synced units?  I guess there would be no more reduction in speed after 
 the first two radios synced because if there were more they would all fire at 
 the same time any way.  Did I loose bandwidth because they were in MIMO mode 
 rather than Diversity mode or is the slowdown just a function of the timing 
 reduction to keep things clean?
 
 Is the UBNT GPS sync gear going to provide less throughput than I currently 
 experience when their new sync capable gear comes out?
 
 Thanks, just trying to get some feedback to learn more about how Syncing 
 devices affects their performance.
 
 Scott Carullo
 Technical Operations
 855-FLSPEED x102
 
 
 
 
 
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Re: [WISPA] GPS Sync / or Sync between devices at site without GPS Question

2011-01-09 Thread Josh Luthman
Well on the same frequency I could see.
On Jan 9, 2011 5:13 PM, Jeremie Chism jchi...@gmail.com wrote:
 The alvarion gear I used with their gps card did not affect bandwidth.

 Sent from my iPhone4

 On Jan 9, 2011, at 4:03 PM, Scott Carullo sc...@brevardwireless.com
wrote:

 For the first time I synchronized multiple devices (two backhauls) at a
tower site to see what it was all about. All of our gear in the past did not
have the capability to sync across devices to save spectrum and/or reduce
interference between local devices.

 In this case I used two Radwin 2000C backhauls with a sync cable between
them. Setting up the sync between them was easy however the first thing I
noticed was that the available bandwidth was cut in half. Is this typical of
all synced units? I guess there would be no more reduction in speed after
the first two radios synced because if there were more they would all fire
at the same time any way. Did I loose bandwidth because they were in MIMO
mode rather than Diversity mode or is the slowdown just a function of the
timing reduction to keep things clean?

 Is the UBNT GPS sync gear going to provide less throughput than I
currently experience when their new sync capable gear comes out?

 Thanks, just trying to get some feedback to learn more about how Syncing
devices affects their performance.

 Scott Carullo
 Technical Operations
 855-FLSPEED x102






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[WISPA] GPS synced systems

2010-06-14 Thread Mike Hammett
Other than Canopy, what systems also use GPS sync?

-- 


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





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Re: [WISPA] GPS synced systems

2010-06-14 Thread Chuck Profito
GPS :-)

-Original Message-
From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On
Behalf Of Mike Hammett
Sent: Monday, June 14, 2010 9:20 AM
To: WISPA General List
Subject: [WISPA] GPS synced systems

Other than Canopy, what systems also use GPS sync?

-- 


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






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Re: [WISPA] GPS synced systems

2010-06-14 Thread Gino Villarini
Any Wimax based

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 Mike Hammett
Sent: Monday, June 14, 2010 12:20 PM
To: WISPA General List
Subject: [WISPA] GPS synced systems

Other than Canopy, what systems also use GPS sync?

-- 


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






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Re: [WISPA] GPS synced systems

2010-06-14 Thread Jerry Richardson
Redline 3.65? 


-Original Message-
From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf 
Of Mike Hammett
Sent: Monday, June 14, 2010 9:20 AM
To: WISPA General List
Subject: [WISPA] GPS synced systems

Other than Canopy, what systems also use GPS sync?

-- 


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





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Re: [WISPA] GPS synced systems

2010-06-14 Thread Jeremie Chism
Pretty sure redline does also.

Sent from my iPhone

On Jun 14, 2010, at 11:38 AM, Jerry Richardson  
jrichard...@aircloud.com wrote:

 Redline 3.65?


 -Original Message-
 From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org]  
 On Behalf Of Mike Hammett
 Sent: Monday, June 14, 2010 9:20 AM
 To: WISPA General List
 Subject: [WISPA] GPS synced systems

 Other than Canopy, what systems also use GPS sync?

 -- 


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




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Re: [WISPA] GPS synced systems

2010-06-14 Thread Steven G McGehee
I can confirm Redline can use GPS.


Jeremie Chism wrote:
 Pretty sure redline does also.

 Sent from my iPhone

 On Jun 14, 2010, at 11:38 AM, Jerry Richardson  
 jrichard...@aircloud.com wrote:

   
 Redline 3.65?


 -Original Message-
 From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org]  
 On Behalf Of Mike Hammett
 Sent: Monday, June 14, 2010 9:20 AM
 To: WISPA General List
 Subject: [WISPA] GPS synced systems

 Other than Canopy, what systems also use GPS sync?

 -- 


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




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Re: [WISPA] GPS synced systems

2010-06-14 Thread Rubens Kuhl
RedMAX 3.5 GHz (not for use in the US) products sure use GPS.
RedConnec AN-80i don't.
Is the 3.65 solution  based on RedMAX or AN-80 ?


Rubens


On Mon, Jun 14, 2010 at 1:38 PM, Jerry Richardson
jrichard...@aircloud.com wrote:
 Redline 3.65?


 -Original Message-
 From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On 
 Behalf Of Mike Hammett
 Sent: Monday, June 14, 2010 9:20 AM
 To: WISPA General List
 Subject: [WISPA] GPS synced systems

 Other than Canopy, what systems also use GPS sync?

 --


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




 
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Re: [WISPA] GPS synced systems

2010-06-14 Thread Randy Cosby
Tranzeo just announced GPS for their 5.8 Wimax.



On 6/14/2010 10:44 AM, Rubens Kuhl wrote:
 RedMAX 3.5 GHz (not for use in the US) products sure use GPS.
 RedConnec AN-80i don't.
 Is the 3.65 solution  based on RedMAX or AN-80 ?


 Rubens


 On Mon, Jun 14, 2010 at 1:38 PM, Jerry Richardson
 jrichard...@aircloud.com  wrote:

 Redline 3.65?


 -Original Message-
 From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On 
 Behalf Of Mike Hammett
 Sent: Monday, June 14, 2010 9:20 AM
 To: WISPA General List
 Subject: [WISPA] GPS synced systems

 Other than Canopy, what systems also use GPS sync?

 --


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




 
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-- 
Randy Cosby
Vice President
InfoWest, Inc

435-674-0165 x 2010

http://www.infowest.com/

As knowledge increases, the verdict of yesterday must be reversed
today, and in the long run the most positive authority is the
least to be trusted. - Hugh Nibley




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Re: [WISPA] GPS synced systems

2010-06-14 Thread Freylekhman, Alex
Gentlemen,

All of our WiMAX TDD equipment comes with standard GPS synchronization. US 
options are 3.65 and 5GHz. It helps us to mitigate far and near co-channel 
interference

 

Best regards

Alex

 

 

 

Aleksander Freylekhman
Sales Director North America
Axxcelera Broadband Wireless 
a Moseley Company

   T: +1 (804) 864-4125
   M: +1 (440) 220-2192

afreylekh...@axxcelera.com mailto:afreylekh...@axxcelera.com 
www.axxcelera.com http://www.axxcelera.com 

 

From: Mike Hammett wispawirel...@ics-il.net
Date: June 14, 2010 11:19:42 AM CDT
To: WISPA General List wireless@wispa.org
Subject: [WISPA] GPS synced systems
Reply-To: WISPA General List wireless@wispa.org

Other than Canopy, what systems also use GPS sync?

-- 


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






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Re: [WISPA] GPS synced systems

2010-06-14 Thread Eric Muehleisen
Redline Redmax AN-100U and UX both use GPS. I know that Airspan and 
Alvarions 3.65 products also use GPS. I believe anything 802.16d/e uses GPS.

-Eic

On 6/14/2010 11:44 AM, Rubens Kuhl wrote:
 RedMAX 3.5 GHz (not for use in the US) products sure use GPS.
 RedConnec AN-80i don't.
 Is the 3.65 solution  based on RedMAX or AN-80 ?


 Rubens


 On Mon, Jun 14, 2010 at 1:38 PM, Jerry Richardson
 jrichard...@aircloud.com  wrote:

 Redline 3.65?


 -Original Message-
 From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On 
 Behalf Of Mike Hammett
 Sent: Monday, June 14, 2010 9:20 AM
 To: WISPA General List
 Subject: [WISPA] GPS synced systems

 Other than Canopy, what systems also use GPS sync?

 --


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




 
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Re: [WISPA] GPS synced systems

2010-06-14 Thread Rubens Kuhl
On Mon, Jun 14, 2010 at 4:51 PM, Eric Muehleisen ericm...@gmail.com wrote:
 Redline Redmax AN-100U and UX both use GPS. I know that Airspan and
 Alvarions 3.65 products also use GPS. I believe anything 802.16d/e uses GPS.

802.16d FDD gear (like one from Alvarion) doesn't require GPS if
memory serves me right... 802.16d/e TDD systems are very likely to
have GPS.




Rubens



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Re: [WISPA] GPS synced systems

2010-06-14 Thread Mike Hammett
Going in a different direction...

Can you reuse a given frequency on every sector around a tower (4x or 
6x), or are you limited to something less than that?  Do you get full 
capacity on each sector, or are you limited to some percentage of that 
full capacity if you use the same channel all the way around?

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



On 6/14/2010 11:19 AM, Mike Hammett wrote:
 Other than Canopy, what systems also use GPS sync?




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Re: [WISPA] GPS synced systems

2010-06-14 Thread Patrick Shoemaker
With standard FSK Canopy (7/14 Mbps) you can re-use frequencies on 
back-to-back sectors only. There is no throughput hit for doing so.

Think about what the GPS sync does- it causes all AP transmission 
timeslots to occur simultaneously, and all receive timeslots to be 
synchronized. So colocated APs will never be receiving while another is 
transmitting, avoiding self-interference. However, SMs receiving from a 
transmitting AP cluster must have enough separation between APs 
transmitting on the same frequency so that the signal from the desired 
AP is above the minimum SNR for the given modulation (10 dB for 2x mode) 
when compared to another AP transmitting on the same frequency. This can 
be achieved with a standard Canopy AP module by placing them back to 
back--the front/back ratio on the antennas provides more than 10 dB 
isolation. But a SM placed at the edge of two 60 degree sectors wouldn't 
have nearly enough isolation between the two sectors if they were 
running on the same frequency to maintain an acceptable SNR.

So in short, you need three channels to run a standard 6 AP sector GPS 
sync'd with Canopy.


Patrick Shoemaker
Vector Data Systems LLC
shoemak...@vectordatasystems.com
office: (301) 358-1690 x36
http://www.vectordatasystems.com


Mike Hammett wrote:
 Going in a different direction...
 
 Can you reuse a given frequency on every sector around a tower (4x or 
 6x), or are you limited to something less than that?  Do you get full 
 capacity on each sector, or are you limited to some percentage of that 
 full capacity if you use the same channel all the way around?
 
 -
 Mike Hammett
 Intelligent Computing Solutions
 http://www.ics-il.com
 
 
 
 On 6/14/2010 11:19 AM, Mike Hammett wrote:
 Other than Canopy, what systems also use GPS sync?

 
 
 
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Re: [WISPA] GPS synced systems

2010-06-14 Thread Mike Hammett
and then ALL APs transmit simultaneously, not sequentially, correct?  
(others disagree)

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



On 6/14/2010 3:41 PM, Mike Hammett wrote:
 Going in a different direction...

 Can you reuse a given frequency on every sector around a tower (4x or
 6x), or are you limited to something less than that?  Do you get full
 capacity on each sector, or are you limited to some percentage of that
 full capacity if you use the same channel all the way around?

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



 On 6/14/2010 11:19 AM, Mike Hammett wrote:

 Other than Canopy, what systems also use GPS sync?

  

 
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Re: [WISPA] GPS synced systems

2010-06-14 Thread Mike Hammett
That's what I thought you'd need and would happen.

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



On 6/14/2010 3:50 PM, Patrick Shoemaker wrote:
 With standard FSK Canopy (7/14 Mbps) you can re-use frequencies on
 back-to-back sectors only. There is no throughput hit for doing so.

 Think about what the GPS sync does- it causes all AP transmission
 timeslots to occur simultaneously, and all receive timeslots to be
 synchronized. So colocated APs will never be receiving while another is
 transmitting, avoiding self-interference. However, SMs receiving from a
 transmitting AP cluster must have enough separation between APs
 transmitting on the same frequency so that the signal from the desired
 AP is above the minimum SNR for the given modulation (10 dB for 2x mode)
 when compared to another AP transmitting on the same frequency. This can
 be achieved with a standard Canopy AP module by placing them back to
 back--the front/back ratio on the antennas provides more than 10 dB
 isolation. But a SM placed at the edge of two 60 degree sectors wouldn't
 have nearly enough isolation between the two sectors if they were
 running on the same frequency to maintain an acceptable SNR.

 So in short, you need three channels to run a standard 6 AP sector GPS
 sync'd with Canopy.


 Patrick Shoemaker
 Vector Data Systems LLC
 shoemak...@vectordatasystems.com
 office: (301) 358-1690 x36
 http://www.vectordatasystems.com


 Mike Hammett wrote:

 Going in a different direction...

 Can you reuse a given frequency on every sector around a tower (4x or
 6x), or are you limited to something less than that?  Do you get full
 capacity on each sector, or are you limited to some percentage of that
 full capacity if you use the same channel all the way around?

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



 On 6/14/2010 11:19 AM, Mike Hammett wrote:
  
 Other than Canopy, what systems also use GPS sync?



 
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Re: [WISPA] GPS synced systems

2010-06-14 Thread Matt Jenkins
Correst

On 06/14/2010 01:57 PM, Mike Hammett wrote:
 and then ALL APs transmit simultaneously, not sequentially, correct?
 (others disagree)

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



 On 6/14/2010 3:41 PM, Mike Hammett wrote:
 Going in a different direction...

 Can you reuse a given frequency on every sector around a tower (4x or
 6x), or are you limited to something less than that?  Do you get full
 capacity on each sector, or are you limited to some percentage of that
 full capacity if you use the same channel all the way around?

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



 On 6/14/2010 11:19 AM, Mike Hammett wrote:

 Other than Canopy, what systems also use GPS sync?



 
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Re: [WISPA] GPS NTP Server?

2009-09-08 Thread Randy Cosby
We have one running on a FreeBSD server.  I'll have to look at how Aaron 
set it up, but I'm sure there are plenty of software packages out there 
that can do this.  http://time.qnan.org/ is a linux example. 

Mikrotiks can also act as GPS NTP time servers using the optional NTP 
server package.

http://www.mikrotik.com/testdocs/ros/3.0/system/gps.php - synching with 
GPS time
http://www.mikrotik.com/testdocs/ros/3.0/system/ntp.php - NTP server and 
client docs.





RickG wrote:
 Dont know the price but this is sweet --
 http://www.ntp-time-server.com/time-servers/server-gps-clock.html

 On Mon, Sep 7, 2009 at 8:41 PM, Jayson Bakerjay...@spectrasurf.com wrote:
   
 Anyone know of a place to buy a rackmount NTP server that obtains timing
 from GPS?

 I spent a few minutes on Google and found a couple that were $1000+.

 The PCI cards can be had for about $50, antenna's are almost free -- so one
 could build one, but I'd prefer an out of the box solution that looks nice
 in a rack.

 Jayson


 
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work: 435-773-6071
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Re: [WISPA] GPS NTP Server?

2009-09-08 Thread Mike Hammett
Mikrotik RouterBoard + serial GPS receiver, though not a boxed solution.


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



--
From: Jayson Baker jay...@spectrasurf.com
Sent: Monday, September 07, 2009 7:41 PM
To: WISPA General List wireless@wispa.org
Subject: [WISPA] GPS NTP Server?

 Anyone know of a place to buy a rackmount NTP server that obtains timing
 from GPS?

 I spent a few minutes on Google and found a couple that were $1000+.

 The PCI cards can be had for about $50, antenna's are almost free -- so 
 one
 could build one, but I'd prefer an out of the box solution that looks nice
 in a rack.

 Jayson


 
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Re: [WISPA] GPS NTP Server?

2009-09-08 Thread Gino Villarini
We use the lastmile gear Ctm Poe gps sync device for our motorola canopy

It has a built In Ntp server

Sent from my Motorola Startac...


On Sep 8, 2009, at 11:25 AM, Mike Hammett wispawirel...@ics-il.net  
wrote:

 Mikrotik RouterBoard + serial GPS receiver, though not a boxed  
 solution.


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



 --
 From: Jayson Baker jay...@spectrasurf.com
 Sent: Monday, September 07, 2009 7:41 PM
 To: WISPA General List wireless@wispa.org
 Subject: [WISPA] GPS NTP Server?

 Anyone know of a place to buy a rackmount NTP server that obtains  
 timing
 from GPS?

 I spent a few minutes on Google and found a couple that were $1000+.

 The PCI cards can be had for about $50, antenna's are almost free  
 -- so
 one
 could build one, but I'd prefer an out of the box solution that  
 looks nice
 in a rack.

 Jayson


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Re: [WISPA] GPS NTP Server?

2009-09-08 Thread Jayson Baker
Oh yeah, that's right, the MT will do that.

Ok - any suggestions on an decent GPS receiver that is outdoor/weatherproof
and has a serial connection?  I've found a bunch of USB, a couple that are
serial and meant to go in a car (cigarette lighter  mag mount), and even
more that aren't weatherproof.

On Tue, Sep 8, 2009 at 9:42 AM, Gino Villarini g...@aeronetpr.com wrote:

 We use the lastmile gear Ctm Poe gps sync device for our motorola canopy

 It has a built In Ntp server

 Sent from my Motorola Startac...


 On Sep 8, 2009, at 11:25 AM, Mike Hammett wispawirel...@ics-il.net
 wrote:

  Mikrotik RouterBoard + serial GPS receiver, though not a boxed
  solution.
 
 
  -
  Mike Hammett
  Intelligent Computing Solutions
  http://www.ics-il.com
 
 
 
  --
  From: Jayson Baker jay...@spectrasurf.com
  Sent: Monday, September 07, 2009 7:41 PM
  To: WISPA General List wireless@wispa.org
  Subject: [WISPA] GPS NTP Server?
 
  Anyone know of a place to buy a rackmount NTP server that obtains
  timing
  from GPS?
 
  I spent a few minutes on Google and found a couple that were $1000+.
 
  The PCI cards can be had for about $50, antenna's are almost free
  -- so
  one
  could build one, but I'd prefer an out of the box solution that
  looks nice
  in a rack.
 
  Jayson
 
 
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Re: [WISPA] GPS NTP Server?

2009-09-08 Thread Jayson Baker
I discovered that somewhere along the lines, MT added support for USB-based
GPS.  So I bought a $15 outdoor USB GPS off eBay.  We'll see next week if it
works.  MT docs said as long as it supports NMEA output (which this one did)
it'd work.

We don't need accuracy down to the nanosecond, but within a second or two.
We provide services to the local E911 PSAP, and need to make certain our end
matches theirs for VoIP, log files, etc.  For this app, we don't want to
rely on Internet-based NTP servers, as some of our application is not tied
to the public Internet.

Jayson

On Tue, Sep 8, 2009 at 9:21 PM, ralph ralphli...@bsrg.org wrote:

 The last time I looked into this, the GPS had to be one that output a 1 pps
 signal, and most didn't.
 Of course times could have changed (pun intended) and this isn't a
 requirement any longer.
 The GPS-35 from Garmin may meet your specs, I think, if it's still made.

 And BTW- if you happen to have a Canopy CMM in your network, it also has
 the
 NTP server derived from GPS built in.

 Ralph



 -Original Message-
 From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On
 Behalf Of Jayson Baker
 Sent: Tuesday, September 08, 2009 5:23 PM
 To: WISPA General List
 Subject: Re: [WISPA] GPS NTP Server?

 Oh yeah, that's right, the MT will do that.

 Ok - any suggestions on an decent GPS receiver that is outdoor/weatherproof
 and has a serial connection?  I've found a bunch of USB, a couple that are
 serial and meant to go in a car (cigarette lighter  mag mount), and even
 more that aren't weatherproof.

 On Tue, Sep 8, 2009 at 9:42 AM, Gino Villarini g...@aeronetpr.com wrote:

  We use the lastmile gear Ctm Poe gps sync device for our motorola canopy
 
  It has a built In Ntp server
 
  Sent from my Motorola Startac...
 
 
  On Sep 8, 2009, at 11:25 AM, Mike Hammett wispawirel...@ics-il.net
  wrote:
 
   Mikrotik RouterBoard + serial GPS receiver, though not a boxed
   solution.
  
  
   -
   Mike Hammett
   Intelligent Computing Solutions
   http://www.ics-il.com
  
  
  
   --
   From: Jayson Baker jay...@spectrasurf.com
   Sent: Monday, September 07, 2009 7:41 PM
   To: WISPA General List wireless@wispa.org
   Subject: [WISPA] GPS NTP Server?
  
   Anyone know of a place to buy a rackmount NTP server that obtains
   timing
   from GPS?
  
   I spent a few minutes on Google and found a couple that were $1000+.
  
   The PCI cards can be had for about $50, antenna's are almost free
   -- so
   one
   could build one, but I'd prefer an out of the box solution that
   looks nice
   in a rack.
  
   Jayson
  
  
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Re: [WISPA] GPS NTP Server?

2009-09-08 Thread ralph
The last time I looked into this, the GPS had to be one that output a 1 pps
signal, and most didn't.
Of course times could have changed (pun intended) and this isn't a
requirement any longer.
The GPS-35 from Garmin may meet your specs, I think, if it's still made.

And BTW- if you happen to have a Canopy CMM in your network, it also has the
NTP server derived from GPS built in.

Ralph



-Original Message-
From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On
Behalf Of Jayson Baker
Sent: Tuesday, September 08, 2009 5:23 PM
To: WISPA General List
Subject: Re: [WISPA] GPS NTP Server?

Oh yeah, that's right, the MT will do that.

Ok - any suggestions on an decent GPS receiver that is outdoor/weatherproof
and has a serial connection?  I've found a bunch of USB, a couple that are
serial and meant to go in a car (cigarette lighter  mag mount), and even
more that aren't weatherproof.

On Tue, Sep 8, 2009 at 9:42 AM, Gino Villarini g...@aeronetpr.com wrote:

 We use the lastmile gear Ctm Poe gps sync device for our motorola canopy

 It has a built In Ntp server

 Sent from my Motorola Startac...


 On Sep 8, 2009, at 11:25 AM, Mike Hammett wispawirel...@ics-il.net
 wrote:

  Mikrotik RouterBoard + serial GPS receiver, though not a boxed
  solution.
 
 
  -
  Mike Hammett
  Intelligent Computing Solutions
  http://www.ics-il.com
 
 
 
  --
  From: Jayson Baker jay...@spectrasurf.com
  Sent: Monday, September 07, 2009 7:41 PM
  To: WISPA General List wireless@wispa.org
  Subject: [WISPA] GPS NTP Server?
 
  Anyone know of a place to buy a rackmount NTP server that obtains
  timing
  from GPS?
 
  I spent a few minutes on Google and found a couple that were $1000+.
 
  The PCI cards can be had for about $50, antenna's are almost free
  -- so
  one
  could build one, but I'd prefer an out of the box solution that
  looks nice
  in a rack.
 
  Jayson
 
 
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[WISPA] GPS NTP Server?

2009-09-07 Thread Jayson Baker
Anyone know of a place to buy a rackmount NTP server that obtains timing
from GPS?

I spent a few minutes on Google and found a couple that were $1000+.

The PCI cards can be had for about $50, antenna's are almost free -- so one
could build one, but I'd prefer an out of the box solution that looks nice
in a rack.

Jayson



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Re: [WISPA] GPS NTP Server?

2009-09-07 Thread RickG
Dont know the price but this is sweet --
http://www.ntp-time-server.com/time-servers/server-gps-clock.html

On Mon, Sep 7, 2009 at 8:41 PM, Jayson Bakerjay...@spectrasurf.com wrote:
 Anyone know of a place to buy a rackmount NTP server that obtains timing
 from GPS?

 I spent a few minutes on Google and found a couple that were $1000+.

 The PCI cards can be had for about $50, antenna's are almost free -- so one
 could build one, but I'd prefer an out of the box solution that looks nice
 in a rack.

 Jayson


 
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Re: [WISPA] GPS mapping software

2009-08-31 Thread ccrum
SNMP would work if you just wanted to collect information about the AP's
you are actually connected to. I don't think there is an OID for the
scan feature, but I could be wrong. Anyone know? That is why I thought
they might have some kind of tie in to the scan using the API.

Cameron

 SNMP output from MT?

 On 8/29/09, ccrum cc...@dot11net.com wrote:
 This is typically called drive test software and there are many
 vendors of such...just not for wifi or similar technologies. Most of the
 commercial stuff is for collecting data on cellular networks. That being
 said, it shouldn't be too difficult to write a program to collect the
 serial data (see NMEA under google) from a GPS and throw it into a text
 file with the scan data from another program or device which you can get
 external output from. I'm not sure if the MT API allows you to collect
 scan data, but that's where I would start...anyone know?

 Cameron

 Cameron Kilton wrote:
 I'm very well aware that I will be doing this signal testing from the
 ground and I plan to due most if not all with 900mhz testing. I'm
 looking for a VERY rough mapping on real world testing. I've used other
 programs where you input radio data and it will estimate coverage,
 which
 is neat, but I want to be able to drive around using something like
 Delorm or Terrain Navigator and mark spots which I know where good
 signal with accurate GPS and input those into a Google Maps type
 system.

 So if such as system exists, please let me know what that system is...

 Thanks,
 Cam

 -Original Message-
 From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On
 Behalf Of Brian Webster
 Sent: Friday, August 28, 2009 11:32 AM
 To: WISPA General List
 Subject: Re: [WISPA] GPS mapping software

 It might be cheaper just to pay someone to do RF propagation maps and
 post that information. I know someone who does that kind of work :-)

 Thank You,
 Brian Webster



 Cameron Kilton wrote:

 I have new site that I'm working on for deployment and want to be able
 to give customers a realistic coverage map of their town after I

 deploy

 the site.

 The idea:

 Rig vehicle with several antennas and drive around the town with

 Laptop

 and GPS unit connected to it and mark areas with coverage.

 Thoughts  Suggestions?

 -Cameron





 
 

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Re: [WISPA] GPS mapping software

2009-08-29 Thread ccrum
This is typically called drive test software and there are many 
vendors of such...just not for wifi or similar technologies. Most of the 
commercial stuff is for collecting data on cellular networks. That being 
said, it shouldn't be too difficult to write a program to collect the 
serial data (see NMEA under google) from a GPS and throw it into a text 
file with the scan data from another program or device which you can get 
external output from. I'm not sure if the MT API allows you to collect 
scan data, but that's where I would start...anyone know?

Cameron

Cameron Kilton wrote:
 I'm very well aware that I will be doing this signal testing from the
 ground and I plan to due most if not all with 900mhz testing. I'm
 looking for a VERY rough mapping on real world testing. I've used other
 programs where you input radio data and it will estimate coverage, which
 is neat, but I want to be able to drive around using something like
 Delorm or Terrain Navigator and mark spots which I know where good
 signal with accurate GPS and input those into a Google Maps type system.

 So if such as system exists, please let me know what that system is...

 Thanks,
 Cam

 -Original Message-
 From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On
 Behalf Of Brian Webster
 Sent: Friday, August 28, 2009 11:32 AM
 To: WISPA General List
 Subject: Re: [WISPA] GPS mapping software

 It might be cheaper just to pay someone to do RF propagation maps and 
 post that information. I know someone who does that kind of work :-)

 Thank You,
 Brian Webster



 Cameron Kilton wrote:
   
 I have new site that I'm working on for deployment and want to be able
 to give customers a realistic coverage map of their town after I
 
 deploy
   
 the site.

 The idea:

 Rig vehicle with several antennas and drive around the town with
 
 Laptop
   
 and GPS unit connected to it and mark areas with coverage. 

 Thoughts  Suggestions?

 -Cameron




 
 
 
   
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Re: [WISPA] GPS mapping software

2009-08-29 Thread Josh Luthman
SNMP output from MT?

On 8/29/09, ccrum cc...@dot11net.com wrote:
 This is typically called drive test software and there are many
 vendors of such...just not for wifi or similar technologies. Most of the
 commercial stuff is for collecting data on cellular networks. That being
 said, it shouldn't be too difficult to write a program to collect the
 serial data (see NMEA under google) from a GPS and throw it into a text
 file with the scan data from another program or device which you can get
 external output from. I'm not sure if the MT API allows you to collect
 scan data, but that's where I would start...anyone know?

 Cameron

 Cameron Kilton wrote:
 I'm very well aware that I will be doing this signal testing from the
 ground and I plan to due most if not all with 900mhz testing. I'm
 looking for a VERY rough mapping on real world testing. I've used other
 programs where you input radio data and it will estimate coverage, which
 is neat, but I want to be able to drive around using something like
 Delorm or Terrain Navigator and mark spots which I know where good
 signal with accurate GPS and input those into a Google Maps type system.

 So if such as system exists, please let me know what that system is...

 Thanks,
 Cam

 -Original Message-
 From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On
 Behalf Of Brian Webster
 Sent: Friday, August 28, 2009 11:32 AM
 To: WISPA General List
 Subject: Re: [WISPA] GPS mapping software

 It might be cheaper just to pay someone to do RF propagation maps and
 post that information. I know someone who does that kind of work :-)

 Thank You,
 Brian Webster



 Cameron Kilton wrote:

 I have new site that I'm working on for deployment and want to be able
 to give customers a realistic coverage map of their town after I

 deploy

 the site.

 The idea:

 Rig vehicle with several antennas and drive around the town with

 Laptop

 and GPS unit connected to it and mark areas with coverage.

 Thoughts  Suggestions?

 -Cameron





 
 

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-- 
Sent from my mobile device

Josh Luthman
Office: 937-552-2340
Direct: 937-552-2343
1100 Wayne St
Suite 1337
Troy, OH 45373

When you have eliminated the impossible, that which remains, however
improbable, must be the truth.
--- Sir Arthur Conan Doyle



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[WISPA] GPS mapping software

2009-08-28 Thread Cameron Kilton
I have new site that I'm working on for deployment and want to be able
to give customers a realistic coverage map of their town after I deploy
the site.

The idea:

Rig vehicle with several antennas and drive around the town with Laptop
and GPS unit connected to it and mark areas with coverage. 

Thoughts  Suggestions?

-Cameron




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Re: [WISPA] GPS mapping software

2009-08-28 Thread Jack Unger
I don't know what type of network you have deployed (are you serving 
laptops directly?) but your method should work OK if

a) You do 2-way throughput testing to/from the mobile setup.

b) You use a CPE that's the same as your normal CPE.

c) You use an antenna that is equivalent to your normal CPE antenna.

jack


Cameron Kilton wrote:
 I have new site that I'm working on for deployment and want to be able
 to give customers a realistic coverage map of their town after I deploy
 the site.

 The idea:

 Rig vehicle with several antennas and drive around the town with Laptop
 and GPS unit connected to it and mark areas with coverage. 

 Thoughts  Suggestions?

 -Cameron

   
-- 
Jack Unger - President, Ask-Wi.Com, Inc.
Author - Deploying License-Free Wireless WANs
Serving the Broadband Wireless Industry Since 1993
www.ask-wi.com  818-227-4220  jun...@ask-wi.com
Public Profile http://www.linkedin.com/in/jackunger
 







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Re: [WISPA] GPS mapping software

2009-08-28 Thread Brian Webster
It might be cheaper just to pay someone to do RF propagation maps and 
post that information. I know someone who does that kind of work :-)

Thank You,
Brian Webster



Cameron Kilton wrote:
 I have new site that I'm working on for deployment and want to be able
 to give customers a realistic coverage map of their town after I deploy
 the site.

 The idea:

 Rig vehicle with several antennas and drive around the town with Laptop
 and GPS unit connected to it and mark areas with coverage. 

 Thoughts  Suggestions?

 -Cameron



 
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Re: [WISPA] GPS mapping software

2009-08-28 Thread Josh Luthman
The biggest problem with your idea will be the fact you're on the ground -
not going to work too well for 2.4 and 5.x.  900 will be better, but not
ideal.

The better part of what you're doing is if you see a -75 somewhere, then the
houses adjacent are going to be greater to or equal!

Starting out new the costs for everything - Brian's solution is
significantly better.  He offers it in Google Maps (great for show and tell)
and Google Earth (great for installers/remote site surveys/etc).  Both can
be seen here:

http://www.inxwireless.com/coverage.php

Josh Luthman
Office: 937-552-2340
Direct: 937-552-2343
1100 Wayne St
Suite 1337
Troy, OH 45373

When you have eliminated the impossible, that which remains, however
improbable, must be the truth.
--- Sir Arthur Conan Doyle


On Fri, Aug 28, 2009 at 11:31 AM, Brian Webster 
bwebs...@wirelessmapping.com wrote:

 It might be cheaper just to pay someone to do RF propagation maps and
 post that information. I know someone who does that kind of work :-)

 Thank You,
 Brian Webster



 Cameron Kilton wrote:
  I have new site that I'm working on for deployment and want to be able
  to give customers a realistic coverage map of their town after I deploy
  the site.
 
  The idea:
 
  Rig vehicle with several antennas and drive around the town with Laptop
  and GPS unit connected to it and mark areas with coverage.
 
  Thoughts  Suggestions?
 
  -Cameron
 
 
 
 
 
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Re: [WISPA] GPS mapping software

2009-08-28 Thread Cameron Kilton
I'm very well aware that I will be doing this signal testing from the
ground and I plan to due most if not all with 900mhz testing. I'm
looking for a VERY rough mapping on real world testing. I've used other
programs where you input radio data and it will estimate coverage, which
is neat, but I want to be able to drive around using something like
Delorm or Terrain Navigator and mark spots which I know where good
signal with accurate GPS and input those into a Google Maps type system.

So if such as system exists, please let me know what that system is...

Thanks,
Cam

-Original Message-
From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On
Behalf Of Brian Webster
Sent: Friday, August 28, 2009 11:32 AM
To: WISPA General List
Subject: Re: [WISPA] GPS mapping software

It might be cheaper just to pay someone to do RF propagation maps and 
post that information. I know someone who does that kind of work :-)

Thank You,
Brian Webster



Cameron Kilton wrote:
 I have new site that I'm working on for deployment and want to be able
 to give customers a realistic coverage map of their town after I
deploy
 the site.

 The idea:

 Rig vehicle with several antennas and drive around the town with
Laptop
 and GPS unit connected to it and mark areas with coverage. 

 Thoughts  Suggestions?

 -Cameron






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[WISPA] GPS

2008-01-29 Thread Mike Hammett
I am looking at getting a GPS device.  I'd like it to work with many different 
programs such as Google Earth, Radio Mobile, Kismet, etc.

What sort of features do I need it to have to work with these programs?

I'd also like to have it be an independent unit with elevation so I can climb a 
tower and see exactly how tall it is instead of pulling a number out of you 
know where.

Recommendations?


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




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Re: [WISPA] GPS

2008-01-29 Thread Travis Johnson
Mike,

The elevation reading on a GPS is only accurate to within about 30 feet. 
Using one to measure tower height is not going to product accurate results.

Travis
Microserv

Mike Hammett wrote:
 I am looking at getting a GPS device.  I'd like it to work with many 
 different programs such as Google Earth, Radio Mobile, Kismet, etc.

 What sort of features do I need it to have to work with these programs?

 I'd also like to have it be an independent unit with elevation so I can climb 
 a tower and see exactly how tall it is instead of pulling a number out of you 
 know where.

 Recommendations?


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



 
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Re: [WISPA] GPS

2008-01-29 Thread Chuck McCown
Get a WAAS enabled machine.  Then you can get accurate elevation 
measurements.  Without elevation figures are pretty bad on a hand held 
device.


- Original Message - 
From: Mike Hammett [EMAIL PROTECTED]
To: WISPA List wireless@wispa.org
Sent: Tuesday, January 29, 2008 11:11 AM
Subject: [WISPA] GPS


I am looking at getting a GPS device.  I'd like it to work with many 
different programs such as Google Earth, Radio Mobile, Kismet, etc.

 What sort of features do I need it to have to work with these programs?

 I'd also like to have it be an independent unit with elevation so I can 
 climb a tower and see exactly how tall it is instead of pulling a number 
 out of you know where.

 Recommendations?


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



 
 WISPA Wants You! Join today!
 http://signup.wispa.org/
 

 WISPA Wireless List: wireless@wispa.org

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Re: [WISPA] GPS

2008-01-29 Thread Mike Hammett
I figured a real GPS device would be more accurate than my Nextel phone, but 
apparently not.  I've never seen it report an accuracy greater than 30 feet, 
even in areas where there is no cell coverage to augment the accuracy.


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


- Original Message - 
From: Travis Johnson [EMAIL PROTECTED]
To: WISPA General List wireless@wispa.org
Sent: Tuesday, January 29, 2008 12:32 PM
Subject: Re: [WISPA] GPS


 Mike,

 The elevation reading on a GPS is only accurate to within about 30 feet.
 Using one to measure tower height is not going to product accurate 
 results.

 Travis
 Microserv

 Mike Hammett wrote:
 I am looking at getting a GPS device.  I'd like it to work with many 
 different programs such as Google Earth, Radio Mobile, Kismet, etc.

 What sort of features do I need it to have to work with these programs?

 I'd also like to have it be an independent unit with elevation so I can 
 climb a tower and see exactly how tall it is instead of pulling a number 
 out of you know where.

 Recommendations?


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



 
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Re: [WISPA] GPS

2008-01-29 Thread Bryan Scott
Mike Hammett wrote:
 I am looking at getting a GPS device.  I'd like it to work with many 
 different programs such as Google Earth, Radio Mobile, Kismet, etc.
 
 What sort of features do I need it to have to work with these programs?
 
 I'd also like to have it be an independent unit with elevation so I can climb 
 a tower and see exactly how tall it is instead of pulling a number out of you 
 know where.
 
 Recommendations?

I like the Garmin handhelds... got a GPSMAP 60c myself with a 
serial-bluetooth/power supply combo that spits NMEA out to my laptop or 
BlackBerry.

-- Bryan



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Re: [WISPA] GPS

2008-01-29 Thread Cliff LeBoeuf
Also, get one with an electronic compass... Be careful that you make sure
that the compass feature works when stationary. Many have the compass
feature, but you must be moving for it to work.


On 1/29/08 12:53 PM, Chuck McCown [EMAIL PROTECTED] wrote:

 Get a WAAS enabled machine.  Then you can get accurate elevation
 measurements.  Without elevation figures are pretty bad on a hand held
 device.
 
 
 - Original Message -
 From: Mike Hammett [EMAIL PROTECTED]
 To: WISPA List wireless@wispa.org
 Sent: Tuesday, January 29, 2008 11:11 AM
 Subject: [WISPA] GPS
 
 
 I am looking at getting a GPS device.  I'd like it to work with many
 different programs such as Google Earth, Radio Mobile, Kismet, etc.
 
 What sort of features do I need it to have to work with these programs?
 
 I'd also like to have it be an independent unit with elevation so I can
 climb a tower and see exactly how tall it is instead of pulling a number
 out of you know where.
 
 Recommendations?
 
 
 --
 Mike Hammett
 Intelligent Computing Solutions
 http://www.ics-il.com
 
 
 
 -
 ---
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 http://signup.wispa.org/
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Cliff LeBoeuf
985-879-3219
www.cssla.com
www.triparish.net






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Re: [WISPA] GPS

2008-01-29 Thread Don Renner
Magellan makes some GPS that include a GPS based compass to ignore the
magnetic problems with some vertical assets. Will also work standing still,
but uses batteries fairly fast with the compass turned on.

-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of [EMAIL PROTECTED]
Sent: Tuesday, January 29, 2008 4:00 PM
To: WISPA General List
Subject: Re: [WISPA] GPS


We've been using the Garmin 70 and 60 series with altimeter (as opposed to 
elevation from map data). Garmin claims an accuracy of 10 feet with 
proper calibration. Even with fluxgate, the electronic compass is 
unreliable near towers. Has anyone used a gyrocompass?

ted

On Tue, 29 Jan 2008, Travis Johnson wrote:

 Mike,

 The elevation reading on a GPS is only accurate to within about 30 feet.
 Using one to measure tower height is not going to product accurate
results.

 Travis
 Microserv

 Mike Hammett wrote:
 I am looking at getting a GPS device.  I'd like it to work with many
different programs such as Google Earth, Radio Mobile, Kismet, etc.

 What sort of features do I need it to have to work with these programs?

 I'd also like to have it be an independent unit with elevation so I can
climb a tower and see exactly how tall it is instead of pulling a number out
of you know where.

 Recommendations?


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






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Re: [WISPA] GPS

2008-01-29 Thread ted

We've been using the Garmin 70 and 60 series with altimeter (as opposed to 
elevation from map data). Garmin claims an accuracy of 10 feet with 
proper calibration. Even with fluxgate, the electronic compass is 
unreliable near towers. Has anyone used a gyrocompass?

ted

On Tue, 29 Jan 2008, Travis Johnson wrote:

 Mike,

 The elevation reading on a GPS is only accurate to within about 30 feet.
 Using one to measure tower height is not going to product accurate results.

 Travis
 Microserv

 Mike Hammett wrote:
 I am looking at getting a GPS device.  I'd like it to work with many 
 different programs such as Google Earth, Radio Mobile, Kismet, etc.

 What sort of features do I need it to have to work with these programs?

 I'd also like to have it be an independent unit with elevation so I can 
 climb a tower and see exactly how tall it is instead of pulling a number out 
 of you know where.

 Recommendations?


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



 
 WISPA Wants You! Join today!
 http://signup.wispa.org/
 

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Re: [WISPA] GPS

2008-01-29 Thread CHUCK PROFITO

http://tinyurl.com/259a2f
http://tinyurl.com/yrpqsw
$40.00 to 10,000.00 is a big price range! My gps is WAAS or what ever
enabled, but I have to be 25-30 feet away from the tower to get anything
close to accurate on the compass.  Altitude is close. We just use a land
mark with Google Earth's line/measuring tool, and print it out before we go.

Chuck Profito
209-988-7388
CV-ACCESS, INC
[EMAIL PROTECTED] 
Providing High Speed Broadband 
to Rural Central California


-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of [EMAIL PROTECTED]
Sent: Tuesday, January 29, 2008 1:00 PM
To: WISPA General List
Subject: Re: [WISPA] GPS



We've been using the Garmin 70 and 60 series with altimeter (as opposed to 
elevation from map data). Garmin claims an accuracy of 10 feet with 
proper calibration. Even with fluxgate, the electronic compass is 
unreliable near towers. Has anyone used a gyrocompass?

ted

On Tue, 29 Jan 2008, Travis Johnson wrote:

 Mike,

 The elevation reading on a GPS is only accurate to within about 30 
 feet. Using one to measure tower height is not going to product 
 accurate results.

 Travis
 Microserv

 Mike Hammett wrote:
 I am looking at getting a GPS device.  I'd like it to work with many 
 different programs such as Google Earth, Radio Mobile, Kismet, etc.

 What sort of features do I need it to have to work with these 
 programs?

 I'd also like to have it be an independent unit with elevation so I 
 can climb a tower and see exactly how tall it is instead of pulling a 
 number out of you know where.

 Recommendations?


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



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Re: [WISPA] GPS

2008-01-29 Thread Marlon K. Schafer
I love my Garmin Etrex Summit.  One of the things I like the most is it's 
magnetic compass.  Don't have to be moving for it to work.

I also have a data cable that lets me use in with topo usa and a laptop. 
Great for surveys.
marlon

- Original Message - 
From: Mike Hammett [EMAIL PROTECTED]
To: WISPA List wireless@wispa.org
Sent: Tuesday, January 29, 2008 10:11 AM
Subject: [WISPA] GPS


I am looking at getting a GPS device.  I'd like it to work with many 
different programs such as Google Earth, Radio Mobile, Kismet, etc.

 What sort of features do I need it to have to work with these programs?

 I'd also like to have it be an independent unit with elevation so I can 
 climb a tower and see exactly how tall it is instead of pulling a number 
 out of you know where.

 Recommendations?


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



 
 WISPA Wants You! Join today!
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Re: [WISPA] GPS

2008-01-29 Thread Ryan Langseth

One thing to watch with the compasses is magnetic distortion.  When we  
are aiming a PTP link or sector we will use a compass and a reference  
point from google earth.  This is especially important when on top of  
a grain elevator since they can have some large electric motors for  
the conveyors, which will throw off magnetic compasses.

For installs we have given our techs MS streets and trips with the usb  
GPS dongle.  Our Installer's vans are equipped with Jotto Desks and  
have tablets PC that allow them to use the Street and Trips for  
directions.

Ryan


On Jan 29, 2008, at 11:58 PM, Marlon K. Schafer wrote:

 I love my Garmin Etrex Summit.  One of the things I like the most is  
 it's
 magnetic compass.  Don't have to be moving for it to work.

 I also have a data cable that lets me use in with topo usa and a  
 laptop.
 Great for surveys.
 marlon

 - Original Message -
 From: Mike Hammett [EMAIL PROTECTED]
 To: WISPA List wireless@wispa.org
 Sent: Tuesday, January 29, 2008 10:11 AM
 Subject: [WISPA] GPS


 I am looking at getting a GPS device.  I'd like it to work with many
 different programs such as Google Earth, Radio Mobile, Kismet, etc.

 What sort of features do I need it to have to work with these  
 programs?

 I'd also like to have it be an independent unit with elevation so I  
 can
 climb a tower and see exactly how tall it is instead of pulling a  
 number
 out of you know where.

 Recommendations?


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



 
 WISPA Wants You! Join today!
 http://signup.wispa.org/
 

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[WISPA] GPS coords

2007-12-04 Thread Tom DeReggi

I'm finishing up on the link map/spreadsheet to send you.

How accurate does the GPS coords need to be, for Freq Coord study?
I'm using Google Earth. I can go as far as zooming in and marking the GPS 
coords for the exact antenna positions.

Or I can pick a center spot of the building.
Confusion based on having one site with multiple antennas.
My understanding was that the FCC wanted accuracy within 1 deg?

Tom DeReggi
RapidDSL  Wireless, Inc
IntAirNet- Fixed Wireless Broadband




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RE: [WISPA] GPS coords

2007-12-04 Thread CHUCK PROFITO
Tom, just point at it..over thar 
Ducking on the 'general List' :- )

Chuck Profito
209-988-7388
CV-ACCESS, INC
[EMAIL PROTECTED] 
Providing High Speed Broadband 
to Rural Central California


-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Tom DeReggi
Sent: Tuesday, December 04, 2007 1:05 PM
To: WISPA General List
Subject: [WISPA] GPS coords


I'm finishing up on the link map/spreadsheet to send you.

How accurate does the GPS coords need to be, for Freq Coord study? I'm using
Google Earth. I can go as far as zooming in and marking the GPS 
coords for the exact antenna positions.
Or I can pick a center spot of the building.
Confusion based on having one site with multiple antennas.
My understanding was that the FCC wanted accuracy within 1 deg?

Tom DeReggi
RapidDSL  Wireless, Inc
IntAirNet- Fixed Wireless Broadband





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[WISPA] GPS

2007-08-16 Thread Travis Johnson

Hi,

Has anyone equipped their installer vehicles with dash-mounted GPS 
systems? We have been using the cheap USB GPS adapters with the 
installers laptops and using Streets 2007. This works pretty well, but 
now with the prices down on the dash mount models, I'm wondering about 
installing those.


Any input?

Travis
Microserv

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RE: [WISPA] GPS

2007-08-16 Thread Ralph
Hide them when the guys are out of the trucks. I just lost my Garmin Nuvi
360 from the car in the parking lot.

-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Travis Johnson
Sent: Thursday, August 16, 2007 5:35 PM
To: [EMAIL PROTECTED]; WISPA General List
Subject: [WISPA] GPS


Hi,

Has anyone equipped their installer vehicles with dash-mounted GPS 
systems? We have been using the cheap USB GPS adapters with the 
installers laptops and using Streets 2007. This works pretty well, but 
now with the prices down on the dash mount models, I'm wondering about 
installing those.

Any input?

Travis
Microserv


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[WISPA] GPS Recievers

2006-03-10 Thread Dan Petermann

I'm looking for very good GPS receivers.

I've used Trimble in the past and found them to be very good, but  
expensive. That was back in 1998 - 2001.


I'd like to get sub-meter accuracy if the price is right.  When  
dealing with mountain tops and ridge lines,  100' off  can put you at  
the bottom of a cliff.


Any recommendations?
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RE: [WISPA] GPS Recievers

2006-03-10 Thread Brian Webster
Dan,
I like the Garmin product line. To get the best accuracy for a 
reasonable
price look for devices that have WAAS. This is a secondary differential
correction signal sent from Geostationary birds on each coast. It does not
always work but for the price it gets you real close. You should be able to
get accuracy to 20 feet or better in most situations.



Thank You,
Brian Webster
www.wirelessmapping.com http://www.wirelessmapping.com



-Original Message-
From: Dan Petermann [mailto:[EMAIL PROTECTED]
Sent: Friday, March 10, 2006 2:46 PM
To: [EMAIL PROTECTED]; [EMAIL PROTECTED]
Cc: WISPA General List
Subject: [WISPA] GPS Recievers


I'm looking for very good GPS receivers.

I've used Trimble in the past and found them to be very good, but
expensive. That was back in 1998 - 2001.

I'd like to get sub-meter accuracy if the price is right.  When
dealing with mountain tops and ridge lines,  100' off  can put you at
the bottom of a cliff.

Any recommendations?
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RE: [WISPA] GPS Recievers

2006-03-10 Thread Steve Thomas
/lurk

 You should be able to get accuracy to 20 feet
 or better in most situations.

I routinely get 15' accuracy with my GPSMAP 60C. 9' is not uncommon. The
best I've seen it was last weekend, when I had 6' accuracy while out in
the desert east of San Diego.

I'm a big Garmin fan. Both GPS units I've owned were/are Garmins. I know a
few people with Magellans and they're constantly complaining of accuracy
issues and quality control (stress cracks in the housing, etc).

To the original poster: Unless you can manage to get your hands on a
military grade device, you're not likely to get sub-meter precision.

lurk


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