markscs
03-08-2008, 11:17 AM
I'm putting up a 4 x 90 5.8ghz sector array to use as a PTMP backhaul system to microcells.
Looking at the Pacwireless 17db 90 degree H sectors vs the 17db 90 degree V sectors from Hyperlink.
The Pacwireless are a slightly wider band (5.4 to 5.8) vs Hyperlink's 5.7 to 5.8. Will this matter ie resulting in lower than advertised gain on the 5.8 end?
Backhauling up to 20km (32.5db radomed solids at the fringe is the plan).
Horizontal generally speaking is better, there shouldn't be any downfall to doing this right?
Right now I have one of the Hyperlink's up serving a microcell (about 5km away) and a 3 2.4ghz sector POP (about 19km away) both with 27db gridsm -70 and -75 links respectively at x2 cloaking, the quality fluctuates occasionally below 100 but it is usually at 100 and we get good throughput.
Nearby competitor (new entrant) is using some Alvarion 5.8ghz backhaul gear vertically polarized between a couple of their POPs in the area. And I'm also concerned about the proliferation of 5ghz cordless phones (you'd think they'd use the indoor only band @ 5.2 but they all seem to be 5.8) so I'm thinking towards the future here.
I would certainly rather use solids but each sector will likely serve at least two microcells and tower space is relatively limited (we have a single mast on a commercial tower, at the top).
Any comments or experience with either of these antennas?
Thanks,
Mark
Looking at the Pacwireless 17db 90 degree H sectors vs the 17db 90 degree V sectors from Hyperlink.
The Pacwireless are a slightly wider band (5.4 to 5.8) vs Hyperlink's 5.7 to 5.8. Will this matter ie resulting in lower than advertised gain on the 5.8 end?
Backhauling up to 20km (32.5db radomed solids at the fringe is the plan).
Horizontal generally speaking is better, there shouldn't be any downfall to doing this right?
Right now I have one of the Hyperlink's up serving a microcell (about 5km away) and a 3 2.4ghz sector POP (about 19km away) both with 27db gridsm -70 and -75 links respectively at x2 cloaking, the quality fluctuates occasionally below 100 but it is usually at 100 and we get good throughput.
Nearby competitor (new entrant) is using some Alvarion 5.8ghz backhaul gear vertically polarized between a couple of their POPs in the area. And I'm also concerned about the proliferation of 5ghz cordless phones (you'd think they'd use the indoor only band @ 5.2 but they all seem to be 5.8) so I'm thinking towards the future here.
I would certainly rather use solids but each sector will likely serve at least two microcells and tower space is relatively limited (we have a single mast on a commercial tower, at the top).
Any comments or experience with either of these antennas?
Thanks,
Mark