[WISPA] FCC revises 60 Ghz rules for more power

2013-08-10 Thread Gino Villarini
http://www.fiercebroadbandwireless.com/story/fcc-changes-rules-57-64-ghz-band-enhance-wireless-backhaul/2013-08-09?utm_source=Twitterutm_medium=Editorutm_campaign=SocialMedia
___
Wireless mailing list
Wireless@wispa.org
http://lists.wispa.org/mailman/listinfo/wireless


Re: [WISPA] FCC revises 60 Ghz rules for more power

2013-08-10 Thread Mike Hammett
*nods* I read the article, but it was short on details and I was short on time 
to actually look up what they did. 




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

- Original Message -

From: Gino Villarini g...@aeronetpr.com 
To: a...@afmug.com 
Cc: WISPA General List (wireless@wispa.org) wireless@wispa.org 
Sent: Saturday, August 10, 2013 9:05:04 AM 
Subject: [WISPA] FCC revises 60 Ghz rules for more power 



http://www.fiercebroadbandwireless.com/story/fcc-changes-rules-57-64-ghz-band-enhance-wireless-backhaul/2013-08-09?utm_source=Twitterutm_medium=Editorutm_campaign=SocialMedia
 
___ 
Wireless mailing list 
Wireless@wispa.org 
http://lists.wispa.org/mailman/listinfo/wireless 

___
Wireless mailing list
Wireless@wispa.org
http://lists.wispa.org/mailman/listinfo/wireless


Re: [WISPA] FCC revises 60 Ghz rules for more power

2013-08-10 Thread Gino Villarini
More tx power in relations to the beamwidth of the antenna…..

Gino A. Villarini
g...@aeronetpr.commailto:g...@aeronetpr.com
Aeronet Wireless Broadband Corp.
787.273.4143
From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf 
Of Mike Hammett
Sent: Saturday, August 10, 2013 10:04 AM
To: WISPA General List
Subject: Re: [WISPA] FCC revises 60 Ghz rules for more power

*nods* I read the article, but it was short on details and I was short on time 
to actually look up what they did.


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


From: Gino Villarini g...@aeronetpr.commailto:g...@aeronetpr.com
To: a...@afmug.commailto:a...@afmug.com
Cc: WISPA General List (wireless@wispa.orgmailto:wireless@wispa.org) 
wireless@wispa.orgmailto:wireless@wispa.org
Sent: Saturday, August 10, 2013 9:05:04 AM
Subject: [WISPA] FCC revises 60 Ghz rules for more power
http://www.fiercebroadbandwireless.com/story/fcc-changes-rules-57-64-ghz-band-enhance-wireless-backhaul/2013-08-09?utm_source=Twitterutm_medium=Editorutm_campaign=SocialMedia

___
Wireless mailing list
Wireless@wispa.orgmailto:Wireless@wispa.org
http://lists.wispa.org/mailman/listinfo/wireless

___
Wireless mailing list
Wireless@wispa.org
http://lists.wispa.org/mailman/listinfo/wireless


Re: [WISPA] FCC revises 60 Ghz rules for more power

2013-08-10 Thread Mike Hammett
Well right, but that doesn't really say much. I finally just went to the RO: 

In this Report and Order, we modify our rules to allow operation at higher 
power levels 
by 60 GHz unlicensed devices that use an antenna exceeding a specific gain and 
operate outdoors. 
Specifically, for 60 GHz devices located outdoors, we increase the average 
equivalent isotropically 
radiated power (EIRP) limit from 40 dBm to 82 dBm minus 2 dB for every dB that 
the antenna gain is 
below 51 dBi, and peak EIRP emission limit from 43 dBm to 85 dBm minus 2 dB for 
every dB that the 
antenna gain is below 51 dBi. Also, the amended rules will specify the emission 
limits for all 60 GHz 
devices in terms of equivalent isotropically radiated power (EIRP). These rule 
changes will provide 
needed flexibility to improve performance and provide cost savings for 
unlicensed devices to support 
broadband service in the 60 GHz band. These revisions also have the potential 
to foster the development 
of products with longer operating distances than are achievable under the 
current rules and to promote use 
of the 60 GHz band as a vehicle for broadband transmission links. This will 
encourage the development 
of very high speed wireless links for use in locations where highways, parking 
lots, or other obstructions 
may prevent the extension of fiber or wireline connections, to connect multiple 
buildings in a campus 
environment, or to provide backhaul connections for new 4G wireless services. 

Looking at Bridgewave's specs, a 2' is 46 dBi. So are we looking at 4' dishes 
to be over 51 dBi? If EIRP is going from 40 to 82 and the antenna is 6 of that, 
are we looking at 36 dB more out of the transmitter? That's a world of more 
power, unless I'm misunderstanding? If you thought aligning an airFiber was 
difficult... ;-) 



Most importantly, why are we just now hearing about this once the proceeding is 
over? It seems like there have been a few things happening at the FCC lately 
that we're not aware of until after it is over. Why is that? Is there some FCC 
listserv or RSS feed we should be watching? 




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

- Original Message -

From: Gino Villarini g...@aeronetpr.com 
To: WISPA General List wireless@wispa.org 
Sent: Saturday, August 10, 2013 9:14:48 AM 
Subject: Re: [WISPA] FCC revises 60 Ghz rules for more power 



More tx power in relations to the beamwidth of the antenna….. 


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


From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf 
Of Mike Hammett 
Sent: Saturday, August 10, 2013 10:04 AM 
To: WISPA General List 
Subject: Re: [WISPA] FCC revises 60 Ghz rules for more power 


*nods* I read the article, but it was short on details and I was short on time 
to actually look up what they did. 



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

- Original Message -


From: Gino Villarini  g...@aeronetpr.com  
To: a...@afmug.com 
Cc: WISPA General List ( wireless@wispa.org )  wireless@wispa.org  
Sent: Saturday, August 10, 2013 9:05:04 AM 
Subject: [WISPA] FCC revises 60 Ghz rules for more power 
http://www.fiercebroadbandwireless.com/story/fcc-changes-rules-57-64-ghz-band-enhance-wireless-backhaul/2013-08-09?utm_source=Twitterutm_medium=Editorutm_campaign=SocialMedia
 

___ 
Wireless mailing list 
Wireless@wispa.org 
http://lists.wispa.org/mailman/listinfo/wireless 

___ 
Wireless mailing list 
Wireless@wispa.org 
http://lists.wispa.org/mailman/listinfo/wireless 

___
Wireless mailing list
Wireless@wispa.org
http://lists.wispa.org/mailman/listinfo/wireless


Re: [WISPA] 5.8 Separation

2013-08-10 Thread ~NGL~
2 CPE,s
NGL
  From: Josh Luthman 
  Sent: Two CPE,s
  NGLFriday, August 09, 2013 7:54 PM
  To: WISPA General List 
  Subject: Re: [WISPA] 5.8 Separation


  CPEs or APs?

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

  On Aug 9, 2013 10:52 PM, ~NGL~ n...@ngl.net wrote:

Another question
Can the last 2 CPE's be as follows: one is only 1 foot higher than the 
second but they are 5 foot apart horizontally 
Thanx again
NGL
  From: Josh Luthman 
  Sent: Thursday, August 08, 2013 5:37 PM
  To: WISPA General List 
  Subject: Re: [WISPA] 5.8 Separation


  You're welcome, no problem!



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



  On Thu, Aug 8, 2013 at 8:36 PM, ~NGL~ n...@ngl.net wrote:

Thanx for your time, it helps a lot.
NGL
  From: Josh Luthman 
  Sent: Thursday, August 08, 2013 5:32 PM
  To: WISPA General List 
  Subject: Re: [WISPA] 5.8 Separation


  Well 5 foot down is like 5.5 foot diagonal on a small tower, it 
wouldn't hurt to get the extra distance.



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



  On Thu, Aug 8, 2013 at 8:23 PM, ~NGL~ n...@ngl.net wrote:

Should the 5 feet be all vertical or can it be diagonal?
NGL
  From: Josh Luthman 
  Sent: Thursday, August 08, 2013 5:16 PM
  To: WISPA General List 
  Subject: Re: [WISPA] 5.8 Separation


  Shoot for 5 feet or as much as you can, more frequency guard 
would be good.

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

  On Aug 8, 2013 8:09 PM, ~NGL~ n...@ngl.net wrote:

No they will be on 5725 and 5745 at least.
  From: Josh Luthman 
  Sent: Thursday, August 08, 2013 5:05 PM
  To: WISPA General List 
  Subject: Re: [WISPA] 5.8 Separation


  If you mean to have Ubnt below it 10' on the same frequency 
with the same bearing, you're going to ruin any customers on that AP.



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



  On Thu, Aug 8, 2013 at 8:00 PM, ~NGL~ n...@ngl.net wrote:


Every thing is a duplicate link side by side.
NGL

From: Josh Luthman 
  Sent: Thursday, August 08, 2013 4:52 PM
  To: WISPA General List 
  Subject: Re: [WISPA] 5.8 Separation


  Get as much as possible.  Are they pointing the same 
direction or away?  If they're different frequencies, I would be comfortable 
with 5 feet.



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



  On Thu, Aug 8, 2013 at 7:50 PM, ~NGL~ n...@ngl.net 
wrote:

10 foot is hard to get on a 65 foot tower, what is the 
minimum I can get away with?
Thanx
NGL
  From: Josh Luthman 
  Sent: Thursday, August 08, 2013 4:46 PM
  To: WISPA General List 
  Subject: Re: [WISPA] 5.8 Separation


  If the Tranzeo AP is at 5725 in 20 MHz you'll want to 
be 5745 (or farther, which is better) on the Ubnt.



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



  On Thu, Aug 8, 2013 at 7:42 PM, ~NGL~ n...@ngl.net 
wrote:

What do you mean by spectrum separation?
NGL
  From: Josh Luthman 
  Sent: Thursday, August 08, 2013 4:38 PM
  To: WISPA General List 
  Subject: Re: [WISPA] 5.8 Separation


  Ideally 10 feet vertically.  Assuming you have 
spectrum separation, too.



  Josh Luthman
  Office: 937-552-2340
  Direct: 937-552-2343
  

Re: [WISPA] 5.8 Separation

2013-08-10 Thread Josh Luthman
On the tower I don't think it would be too relevant, assuming the AP
positions aren't problematic.

Josh Luthman
Office: 937-552-2340
Direct: 937-552-2343
1100 Wayne St
Suite 1337
Troy, OH 45373
On Aug 10, 2013 11:59 AM, ~NGL~ n...@ngl.net wrote:

 **
 2 CPE,s
 NGL

  *From:* Josh Luthman j...@imaginenetworksllc.com
 *Sent:* Two CPE,s
 NGLFriday, August 09, 2013 7:54 PM
 *To:* WISPA General List wireless@wispa.org
 *Subject:* Re: [WISPA] 5.8 Separation

 CPEs or APs?

 Josh Luthman
 Office: 937-552-2340
 Direct: 937-552-2343
 1100 Wayne St
 Suite 1337
 Troy, OH 45373
 On Aug 9, 2013 10:52 PM, ~NGL~ n...@ngl.net wrote:

 **
  Another question
 Can the last 2 CPE's be as follows: one is only 1 foot higher than the
 second but they are 5 foot apart horizontally
 Thanx again
 NGL

  *From:* Josh Luthman j...@imaginenetworksllc.com
 *Sent:* Thursday, August 08, 2013 5:37 PM
 *To:* WISPA General List wireless@wispa.org
 *Subject:* Re: [WISPA] 5.8 Separation

 You're welcome, no problem!


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


 On Thu, Aug 8, 2013 at 8:36 PM, ~NGL~ n...@ngl.net wrote:

 **
 Thanx for your time, it helps a lot.
 NGL

  *From:* Josh Luthman j...@imaginenetworksllc.com
 *Sent:* Thursday, August 08, 2013 5:32 PM
  *To:* WISPA General List wireless@wispa.org
 *Subject:* Re: [WISPA] 5.8 Separation

 Well 5 foot down is like 5.5 foot diagonal on a small tower, it wouldn't
 hurt to get the extra distance.


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


 On Thu, Aug 8, 2013 at 8:23 PM, ~NGL~ n...@ngl.net wrote:

 **
 Should the 5 feet be all vertical or can it be diagonal?
 NGL

  *From:* Josh Luthman j...@imaginenetworksllc.com
 *Sent:* Thursday, August 08, 2013 5:16 PM
  *To:* WISPA General List wireless@wispa.org
 *Subject:* Re: [WISPA] 5.8 Separation

 Shoot for 5 feet or as much as you can, more frequency guard would be
 good.

 Josh Luthman
 Office: 937-552-2340
 Direct: 937-552-2343
 1100 Wayne St
 Suite 1337
 Troy, OH 45373
 On Aug 8, 2013 8:09 PM, ~NGL~ n...@ngl.net wrote:

 **
 No they will be on 5725 and 5745 at least.

  *From:* Josh Luthman j...@imaginenetworksllc.com
 *Sent:* Thursday, August 08, 2013 5:05 PM
 *To:* WISPA General List wireless@wispa.org
 *Subject:* Re: [WISPA] 5.8 Separation

 If you mean to have Ubnt below it 10' on the same frequency with the
 same bearing, you're going to ruin any customers on that AP.


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


 On Thu, Aug 8, 2013 at 8:00 PM, ~NGL~ n...@ngl.net wrote:

 **

 Every thing is a duplicate link side by side.
 NGL

 *From:* Josh Luthman j...@imaginenetworksllc.com

  *Sent:* Thursday, August 08, 2013 4:52 PM
  *To:* WISPA General List wireless@wispa.org
 *Subject:* Re: [WISPA] 5.8 Separation

 Get as much as possible.  Are they pointing the same direction or
 away?  If they're different frequencies, I would be comfortable with 5 
 feet.


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


 On Thu, Aug 8, 2013 at 7:50 PM, ~NGL~ n...@ngl.net wrote:

 **
 10 foot is hard to get on a 65 foot tower, what is the minimum I can
 get away with?
 Thanx
 NGL

  *From:* Josh Luthman j...@imaginenetworksllc.com
 *Sent:* Thursday, August 08, 2013 4:46 PM
  *To:* WISPA General List wireless@wispa.org
 *Subject:* Re: [WISPA] 5.8 Separation

 If the Tranzeo AP is at 5725 in 20 MHz you'll want to be 5745 (or
 farther, which is better) on the Ubnt.


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


 On Thu, Aug 8, 2013 at 7:42 PM, ~NGL~ n...@ngl.net wrote:

 **
 What do you mean by spectrum separation?
 NGL

  *From:* Josh Luthman j...@imaginenetworksllc.com
 *Sent:* Thursday, August 08, 2013 4:38 PM
 *To:* WISPA General List wireless@wispa.org
 *Subject:* Re: [WISPA] 5.8 Separation

 Ideally 10 feet vertically.  Assuming you have spectrum separation,
 too.


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


 On Thu, Aug 8, 2013 at 7:37 PM, ~NGL~ n...@ngl.net wrote:

 **
 We have the following setup:
 Tower 1 = Tranzeo  TR-5 plus AP
 Tower 2 = Tranzeo TR-5 plus CPE +   TR-5 plus AP
 Tower 3 = Tranzeo TR-5 plus CPE
 These have worked fine for several years, now we want to add
 a duplicate  link using Nanobridges 5.8 instead of the Tranzeo TR-5 
 Plus
 gear.

 How much physical separation should we plan on between the Tranzeo
 units and the Nanobridges?


 Thanx
 NGL


   If you can read this Thank A Teacher.
 And if it's in English Thank A Soldier!

 ___
 Wireless mailing list
 Wireless@wispa.org
 http://lists.wispa.org/mailman/listinfo/wireless


  --

 ___
 Wireless mailing list
 

Re: [WISPA] 5.8 Separation

2013-08-10 Thread Josh Luthman
6 feet is good, 10 feet is better


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


On Sat, Aug 10, 2013 at 12:41 PM, ~NGL~ n...@ngl.net wrote:

 **
 As far as the AP's I can get over 6 feet
 NGL

  *Sent:* Saturday, August 10, 2013 9:01 AM
 *To:* WISPA General List wireless@wispa.org
 *Subject:* Re: [WISPA] 5.8 Separation

 On the tower I don't think it would be too relevant, assuming the AP
 positions aren't problematic.

 Josh Luthman
 Office: 937-552-2340
 Direct: 937-552-2343
 1100 Wayne St
 Suite 1337
 Troy, OH 45373
 On Aug 10, 2013 11:59 AM, ~NGL~ n...@ngl.net wrote:

 **
 2 CPE,s
 NGL

  *From:* Josh Luthman j...@imaginenetworksllc.com
 *Sent:* Two CPE,s
 NGLFriday, August 09, 2013 7:54 PM
 *To:* WISPA General List wireless@wispa.org
 *Subject:* Re: [WISPA] 5.8 Separation

 CPEs or APs?

 Josh Luthman
 Office: 937-552-2340
 Direct: 937-552-2343
 1100 Wayne St
 Suite 1337
 Troy, OH 45373
 On Aug 9, 2013 10:52 PM, ~NGL~ n...@ngl.net wrote:

 **
  Another question
 Can the last 2 CPE's be as follows: one is only 1 foot higher than the
 second but they are 5 foot apart horizontally
 Thanx again
 NGL

  *From:* Josh Luthman j...@imaginenetworksllc.com
 *Sent:* Thursday, August 08, 2013 5:37 PM
 *To:* WISPA General List wireless@wispa.org
 *Subject:* Re: [WISPA] 5.8 Separation

 You're welcome, no problem!


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


 On Thu, Aug 8, 2013 at 8:36 PM, ~NGL~ n...@ngl.net wrote:

 **
 Thanx for your time, it helps a lot.
 NGL

  *From:* Josh Luthman j...@imaginenetworksllc.com
 *Sent:* Thursday, August 08, 2013 5:32 PM
  *To:* WISPA General List wireless@wispa.org
 *Subject:* Re: [WISPA] 5.8 Separation

 Well 5 foot down is like 5.5 foot diagonal on a small tower, it
 wouldn't hurt to get the extra distance.


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


 On Thu, Aug 8, 2013 at 8:23 PM, ~NGL~ n...@ngl.net wrote:

 **
 Should the 5 feet be all vertical or can it be diagonal?
 NGL

  *From:* Josh Luthman j...@imaginenetworksllc.com
 *Sent:* Thursday, August 08, 2013 5:16 PM
  *To:* WISPA General List wireless@wispa.org
 *Subject:* Re: [WISPA] 5.8 Separation

 Shoot for 5 feet or as much as you can, more frequency guard would be
 good.

 Josh Luthman
 Office: 937-552-2340
 Direct: 937-552-2343
 1100 Wayne St
 Suite 1337
 Troy, OH 45373
 On Aug 8, 2013 8:09 PM, ~NGL~ n...@ngl.net wrote:

 **
 No they will be on 5725 and 5745 at least.

  *From:* Josh Luthman j...@imaginenetworksllc.com
 *Sent:* Thursday, August 08, 2013 5:05 PM
 *To:* WISPA General List wireless@wispa.org
 *Subject:* Re: [WISPA] 5.8 Separation

 If you mean to have Ubnt below it 10' on the same frequency with the
 same bearing, you're going to ruin any customers on that AP.


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


 On Thu, Aug 8, 2013 at 8:00 PM, ~NGL~ n...@ngl.net wrote:

 **

 Every thing is a duplicate link side by side.
 NGL

 *From:* Josh Luthman j...@imaginenetworksllc.com

  *Sent:* Thursday, August 08, 2013 4:52 PM
  *To:* WISPA General List wireless@wispa.org
 *Subject:* Re: [WISPA] 5.8 Separation

 Get as much as possible.  Are they pointing the same direction or
 away?  If they're different frequencies, I would be comfortable with 5 
 feet.


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


 On Thu, Aug 8, 2013 at 7:50 PM, ~NGL~ n...@ngl.net wrote:

 **
 10 foot is hard to get on a 65 foot tower, what is the minimum I
 can get away with?
 Thanx
 NGL

  *From:* Josh Luthman j...@imaginenetworksllc.com
 *Sent:* Thursday, August 08, 2013 4:46 PM
  *To:* WISPA General List wireless@wispa.org
 *Subject:* Re: [WISPA] 5.8 Separation

 If the Tranzeo AP is at 5725 in 20 MHz you'll want to be 5745 (or
 farther, which is better) on the Ubnt.


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


 On Thu, Aug 8, 2013 at 7:42 PM, ~NGL~ n...@ngl.net wrote:

 **
 What do you mean by spectrum separation?
 NGL

  *From:* Josh Luthman j...@imaginenetworksllc.com
 *Sent:* Thursday, August 08, 2013 4:38 PM
 *To:* WISPA General List wireless@wispa.org
 *Subject:* Re: [WISPA] 5.8 Separation

 Ideally 10 feet vertically.  Assuming you have spectrum
 separation, too.


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


 On Thu, Aug 8, 2013 at 7:37 PM, ~NGL~ n...@ngl.net wrote:

 **
 We have the following setup:
 Tower 1 = Tranzeo  TR-5 plus AP
 Tower 2 = Tranzeo TR-5 plus CPE +   TR-5 plus AP
 Tower 3 = Tranzeo TR-5 plus CPE
 These have worked fine for several years, now we want to add
 a duplicate  link using Nanobridges 5.8 instead of the Tranzeo TR-5 
 Plus
 gear.

 How much physical separation should we plan on between the
 Tranzeo