Re: [WISPA] 5GHz interference

2005-10-28 Thread Lonnie Nunweiler
Are you sure the interference is caused by the other dish?  We have
systems much closer than 15 foot apart and see no ill effects.

With all the other gear on that tower could you in fact be seeing
interference from something else?

Lonnie

On 10/28/05, Paul Hendry [EMAIL PROTECTED] wrote:
 Hi guys and gals,



Just seeing if anyone has any advise when mounting more than 1
 antenna in the same frequency range on a tower. We have just installed a
 5.8GHz 120 vert sector at about 47m. Already on the same side of the tower
 @ 42m is a 2 foot vert dish also running 5.8GHz. Both are pointing in
 roughly the same direction and there is 4 channels separation between them.
 I read somewhere on this list that 5 foot separation should be enough but I
 am seeing major interference. We have a horizontal dish also on this tower
 for a critical link so changing the dish to horizontal is not an option.
 Also, the tower is full of high frequency dishes and mobile antennas so
 there isn't much chance of moving either antennas to a different height.
 Anyone got any ideas??



 Cheers,



 P.


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RE: [WISPA] 5GHz interference

2005-10-28 Thread Paul Hendry
I don't believe so as all the other kit is either mobile operators or +28GHz
although I haven't fully tested yet. However, I do know that if I set the
new 120' superpass sector to be a client of the Radiowaves 28db parabolic
dish it shows a quality of around 30db whilst the normal client (another
Radiowaves 28db parabolic 18km away) only shows 26db.

Are any of your systems that are 15 foot apart a sector above a dish
pointing in roughly the same direction?

-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Lonnie Nunweiler
Sent: 28 October 2005 21:16
To: WISPA General List
Subject: Re: [WISPA] 5GHz interference

Are you sure the interference is caused by the other dish?  We have
systems much closer than 15 foot apart and see no ill effects.

With all the other gear on that tower could you in fact be seeing
interference from something else?

Lonnie

On 10/28/05, Paul Hendry [EMAIL PROTECTED] wrote:
 Hi guys and gals,



Just seeing if anyone has any advise when mounting more than 1
 antenna in the same frequency range on a tower. We have just installed a
 5.8GHz 120 vert sector at about 47m. Already on the same side of the
tower
 @ 42m is a 2 foot vert dish also running 5.8GHz. Both are pointing in
 roughly the same direction and there is 4 channels separation between
them.
 I read somewhere on this list that 5 foot separation should be enough but
I
 am seeing major interference. We have a horizontal dish also on this tower
 for a critical link so changing the dish to horizontal is not an option.
 Also, the tower is full of high frequency dishes and mobile antennas so
 there isn't much chance of moving either antennas to a different height.
 Anyone got any ideas??



 Cheers,



 P.


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Re: [WISPA] 5GHz interference

2005-10-28 Thread Lonnie Nunweiler
We use 3 foot dishes and 21 dB patches, and yes they point in roughly
the same direction.  We don't have that many 120 sectors so I have no
experience.  The 21 dB patches are only 12 degrees wide so maybe that
is part of why we see such low interaction.

Lonnie

On 10/28/05, Paul Hendry [EMAIL PROTECTED] wrote:
 I don't believe so as all the other kit is either mobile operators or +28GHz
 although I haven't fully tested yet. However, I do know that if I set the
 new 120' superpass sector to be a client of the Radiowaves 28db parabolic
 dish it shows a quality of around 30db whilst the normal client (another
 Radiowaves 28db parabolic 18km away) only shows 26db.

 Are any of your systems that are 15 foot apart a sector above a dish
 pointing in roughly the same direction?

 -Original Message-
 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
 Behalf Of Lonnie Nunweiler
 Sent: 28 October 2005 21:16
 To: WISPA General List
 Subject: Re: [WISPA] 5GHz interference

 Are you sure the interference is caused by the other dish?  We have
 systems much closer than 15 foot apart and see no ill effects.

 With all the other gear on that tower could you in fact be seeing
 interference from something else?

 Lonnie

 On 10/28/05, Paul Hendry [EMAIL PROTECTED] wrote:
  Hi guys and gals,
 
 
 
 Just seeing if anyone has any advise when mounting more than 1
  antenna in the same frequency range on a tower. We have just installed a
  5.8GHz 120 vert sector at about 47m. Already on the same side of the
 tower
  @ 42m is a 2 foot vert dish also running 5.8GHz. Both are pointing in
  roughly the same direction and there is 4 channels separation between
 them.
  I read somewhere on this list that 5 foot separation should be enough but
 I
  am seeing major interference. We have a horizontal dish also on this tower
  for a critical link so changing the dish to horizontal is not an option.
  Also, the tower is full of high frequency dishes and mobile antennas so
  there isn't much chance of moving either antennas to a different height.
  Anyone got any ideas??
 
 
 
  Cheers,
 
 
 
  P.
 
 
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Re: [WISPA] 5GHz interference

2005-10-28 Thread George

Paul Hendry wrote:

Hi guys and gals,

 


Just seeing if anyone has any advise when mounting more than 1
antenna in the same frequency range on a tower. We have just installed a
5.8GHz 120” vert sector at about 47m. Already on the same side of the tower
@ 42m is a 2 foot vert dish also running 5.8GHz. Both are pointing in
roughly the same direction and there is 4 channels separation between them.
I read somewhere on this list that 5 foot separation should be enough but I
am seeing major interference. We have a horizontal dish also on this tower
for a critical link so changing the dish to horizontal is not an option.
Also, the tower is full of high frequency dishes and mobile antennas so
there isn’t much chance of moving either antennas to a different height.
Anyone got any ideas??

 


Cheers,

 


P.




Paul

http://www.oregonfast.net/gofast/ap/Tower/Tower%20and%20truck%20007.jpg

2 5.8 trangos maybe 3' apart.

And I have added recently 2- 5.3 star-os wrap sectors in between those 2 
antennas.


20' away is another proxim 5'3 backhaul.
All pointing to the same area.

Maybe you have a bad pigtail or connection?


George

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RE: [WISPA] 5GHz interference

2005-10-28 Thread Paul Hendry
Is there any chance of interference from the mobile antennas? There are a
couple real close to the new sector but I didn't think 900mhz would affect a
CM9 running at 5.8??

-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of George
Sent: 29 October 2005 00:09
To: WISPA General List
Subject: Re: [WISPA] 5GHz interference

Paul Hendry wrote:
 Hi guys and gals,
 
  
 
 Just seeing if anyone has any advise when mounting more than 1
 antenna in the same frequency range on a tower. We have just installed a
 5.8GHz 120” vert sector at about 47m. Already on the same side of the
tower
 @ 42m is a 2 foot vert dish also running 5.8GHz. Both are pointing in
 roughly the same direction and there is 4 channels separation between
them.
 I read somewhere on this list that 5 foot separation should be enough but
I
 am seeing major interference. We have a horizontal dish also on this tower
 for a critical link so changing the dish to horizontal is not an option.
 Also, the tower is full of high frequency dishes and mobile antennas so
 there isn’t much chance of moving either antennas to a different height.
 Anyone got any ideas??
 
  
 
 Cheers,
 
  
 
 P.
 
 

Paul

http://www.oregonfast.net/gofast/ap/Tower/Tower%20and%20truck%20007.jpg

2 5.8 trangos maybe 3' apart.

And I have added recently 2- 5.3 star-os wrap sectors in between those 2 
antennas.

20' away is another proxim 5'3 backhaul.
All pointing to the same area.

Maybe you have a bad pigtail or connection?


George

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RE: [WISPA] 5GHz interference

2005-10-28 Thread Rick Smith

How much you expecting to get outta that sector ? 

-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Paul Hendry
Sent: Friday, October 28, 2005 4:11 PM
To: 'WISPA General List'
Subject: [WISPA] 5GHz interference

Hi guys and gals,

 

Just seeing if anyone has any advise when mounting more than
1 antenna in the same frequency range on a tower. We have just installed
a 5.8GHz 120 vert sector at about 47m. Already on the same side of the
tower @ 42m is a 2 foot vert dish also running 5.8GHz. Both are pointing
in roughly the same direction and there is 4 channels separation between
them.
I read somewhere on this list that 5 foot separation should be enough
but I am seeing major interference. We have a horizontal dish also on
this tower for a critical link so changing the dish to horizontal is not
an option.
Also, the tower is full of high frequency dishes and mobile antennas so
there isn't much chance of moving either antennas to a different height.
Anyone got any ideas??

 

Cheers,

 

P.


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27/10/2005
 

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Re: [WISPA] 5GHz interference

2005-10-28 Thread Marlon K. Schafer (509) 982-2181
Interference distance with antennas will depend on a lot of factors. 
Antenna type, radio type, protocol etc. etc. etc.


As a rule, with that much channel separation I'd think that you'd not see 
interference.


I'm guessing you have something else going on.  Have you tried, just for 
kicks, to move to a closer channel?  I've got some sites where there's so 
much outside interference that my best performance is with all radios on the 
same channel.


Marlon
(509) 982-2181   Equipment sales
(408) 907-6910 (Vonage)Consulting services
42846865 (icq)And I run my own wisp!
64.146.146.12 (net meeting)
www.odessaoffice.com/wireless
www.odessaoffice.com/marlon/cam



- Original Message - 
From: George [EMAIL PROTECTED]

To: WISPA General List wireless@wispa.org
Sent: Friday, October 28, 2005 4:09 PM
Subject: Re: [WISPA] 5GHz interference



Paul Hendry wrote:

Hi guys and gals,

 Just seeing if anyone has any advise when mounting more than 1
antenna in the same frequency range on a tower. We have just installed a
5.8GHz 120” vert sector at about 47m. Already on the same side of the 
tower

@ 42m is a 2 foot vert dish also running 5.8GHz. Both are pointing in
roughly the same direction and there is 4 channels separation between 
them.
I read somewhere on this list that 5 foot separation should be enough but 
I
am seeing major interference. We have a horizontal dish also on this 
tower

for a critical link so changing the dish to horizontal is not an option.
Also, the tower is full of high frequency dishes and mobile antennas so
there isn’t much chance of moving either antennas to a different height.
Anyone got any ideas??

 Cheers,

 P.




Paul

http://www.oregonfast.net/gofast/ap/Tower/Tower%20and%20truck%20007.jpg

2 5.8 trangos maybe 3' apart.

And I have added recently 2- 5.3 star-os wrap sectors in between those 2 
antennas.


20' away is another proxim 5'3 backhaul.
All pointing to the same area.

Maybe you have a bad pigtail or connection?


George

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