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R4 DECT base station
- Thread starter Blow83
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- #3
So the boss does not want you to do a site survey?
Tell him to solve it himself then.
You cannot do any dect install without a proper site survey.
If you don't them it will cost big money so solve issues like this.
BAZINGA!
I'm not insane, my mother had me tested!
Tell him to solve it himself then.
You cannot do any dect install without a proper site survey.
If you don't them it will cost big money so solve issues like this.
BAZINGA!
I'm not insane, my mother had me tested!
- Thread starter
- #5
- Thread starter
- #7
Try this doc and go to site survey.
BAZINGA!
I'm not insane, my mother had me tested!
BAZINGA!
I'm not insane, my mother had me tested!
amriddle01
Programmer
Base Station Coverage
This section describes how architecture, building elements, and special areas affect the
coverage and the placing of the base stations.
The radio environment or the cell that is covered by a base station is not of a spherical shape as
often suggested in figures. If a snapshot could be taken of its form, it would become clear that
its shape is much more irregular. The momentary size and shape are dependant on the material
of which walls and floors are made, the position and material of furniture, machines,
air-conditioning and the position of the base station in such an environment. Because of these
unpredictable conditions it is not possible to give any hard rules on calculating the number of
base stations in a given situation.
? The in-house cell size in offices can have a radius of between 10 and 30 meters. The cell size in exhibition or production halls can have a radius of up to 200 metres.
? The free space (outdoors) cell radius can be up to 300 metres.
? Base stations may partially cover the floors immediately above and below.
The useful range through floors and ceiling varies between 0 and 8 m
Example Range in meters through building materials:
Stud wall Plaster 30-60
Concrete 10-30
Reinforced concrete (Fire wall) 0-10
Stone/brick 30-50
Metal A panel on brickwork. 0-10
Wood 30-60
Wired glass Fire protection. 0-10
SOpen-plan office or outdoors. 150-300
This section describes how architecture, building elements, and special areas affect the
coverage and the placing of the base stations.
The radio environment or the cell that is covered by a base station is not of a spherical shape as
often suggested in figures. If a snapshot could be taken of its form, it would become clear that
its shape is much more irregular. The momentary size and shape are dependant on the material
of which walls and floors are made, the position and material of furniture, machines,
air-conditioning and the position of the base station in such an environment. Because of these
unpredictable conditions it is not possible to give any hard rules on calculating the number of
base stations in a given situation.
? The in-house cell size in offices can have a radius of between 10 and 30 meters. The cell size in exhibition or production halls can have a radius of up to 200 metres.
? The free space (outdoors) cell radius can be up to 300 metres.
? Base stations may partially cover the floors immediately above and below.
The useful range through floors and ceiling varies between 0 and 8 m
Example Range in meters through building materials:
Stud wall Plaster 30-60
Concrete 10-30
Reinforced concrete (Fire wall) 0-10
Stone/brick 30-50
Metal A panel on brickwork. 0-10
Wood 30-60
Wired glass Fire protection. 0-10
SOpen-plan office or outdoors. 150-300
daveinwearside
Programmer
The document says you should have -90DB/-80DB max for the bases to air sync to each other (depending if you look on the IPO or Aura docs) you would have thought they'd be the same seeing as the base stations use the same firmware and hardware
As a rule I normally make sure I have at least -75 DB for the Base stations to air sync to each other.
This might look like I leave too much overhead but sometimes you cant always get the survey base in exactly the right position or the site conditions might change.
Also make sure you have enough base stations to cover busy areas (8 channels per base, 4 for compacts)
As a rule I normally make sure I have at least -75 DB for the Base stations to air sync to each other.
This might look like I leave too much overhead but sometimes you cant always get the survey base in exactly the right position or the site conditions might change.
Also make sure you have enough base stations to cover busy areas (8 channels per base, 4 for compacts)
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