It sounds like your problem might be one of wrong focal length. As I recall the focal length of the 2.4GHz 24dBi grid was around 16 inches. If your focal length is off, then any twisting or movement of the wire grid will have a big effect on the dipole output.
Regards, Scott -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Robert West Sent: Thursday, September 17, 2009 7:18 AM To: 'WISPA General List' Subject: Re: [WISPA] 2.4 ghz 24db grids. Using the same coax as you have been using? Any new guys crimping the connectors??? Something has to be different. Might be the signal jumps when the wind blows............? check the connections, maybe. -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Michael Baird Sent: Wednesday, September 16, 2009 6:07 PM To: WISPA General List Subject: Re: [WISPA] 2.4 ghz 24db grids. Well this is strange, we've seen it on different model Grids. We saw the same behavior with Non-M and M based Bullets. The signal just keeps bouncing 20db from -74 to -94 for example, with an Andrew it is solid at around the -74. Is it possible they are defective? I can't see how we could be assembling these things improperly, it's pretty obvious. We do use them in Horizontal polarity, but the feedhorn is parallel to the wires when we do this. I mean it's like it's flipping between HPOL/VPOL. Regards Michael Baird > I've been installing pac grids with the 5ghz version of the new Bullet, the > 5hp, and it's been darn stable. Could it be something in the Airmax or the > 2ghz??? Dunno. > > > > -----Original Message----- > From: [email protected] [mailto:[email protected]] On > Behalf Of Michael Baird > Sent: Tuesday, September 15, 2009 5:58 PM > To: WISPA General List > Subject: [WISPA] 2.4 ghz 24db grids. > > What grid type/vendors are most using here. Our installers are having > some issues with our Grid deployments. We've tried a few types of > Pac-Wireless's, some of them have had wildly fluctuating signal levels > they bounce 20db. Our Andrew grids seem to work fine, but we are looking > for a less costly alternative, any ideas? We are using Ubiquity > Bullet2-HP's as the client radios on these things. I'm just wondering > what causes this, we can take a different radio/antenna and get a rock > solid connection on the same pole, so we've discounted some kind of > interference issue. > > Regards > Michael Baird > > > ---------------------------------------------------------------------------- > ---- > WISPA Wants You! Join today! > http://signup.wispa.org/ > ---------------------------------------------------------------------------- > ---- > > WISPA Wireless List: [email protected] > > Subscribe/Unsubscribe: > http://lists.wispa.org/mailman/listinfo/wireless > > Archives: http://lists.wispa.org/pipermail/wireless/ > > > > > > ---------------------------------------------------------------------------- ---- > WISPA Wants You! Join today! > http://signup.wispa.org/ > ---------------------------------------------------------------------------- ---- > > WISPA Wireless List: [email protected] > > Subscribe/Unsubscribe: > http://lists.wispa.org/mailman/listinfo/wireless > > Archives: http://lists.wispa.org/pipermail/wireless/ > ---------------------------------------------------------------------------- ---- WISPA Wants You! Join today! http://signup.wispa.org/ ---------------------------------------------------------------------------- ---- WISPA Wireless List: [email protected] Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ ---------------------------------------------------------------------------- ---- WISPA Wants You! Join today! http://signup.wispa.org/ ---------------------------------------------------------------------------- ---- WISPA Wireless List: [email protected] Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ -------------------------------------------------------------------------------- WISPA Wants You! Join today! http://signup.wispa.org/ -------------------------------------------------------------------------------- WISPA Wireless List: [email protected] Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
