The document provides guidelines for vertical and horizontal separation requirements between transmitting and receiving antennas for various frequency bands. The key points are: - The vertical separation minimum between transmitting and receiving antennas is 0.2m for 900MHz, 1800MHz, and 1900MHz bands. - The horizontal separation requirements vary based on antenna gain and beamwidth for the different frequency bands, with distances ranging from 1-5m. - Additional guidelines are provided for height of antennas above building roofs and minimum distances from obstacle edges.

2. Vertical Separation
The following is valid for 900 Mhz.,
1800,
1900Mhz
and
co-located
900+1800/1900 Mhz.
Requirements: Tx -Rx and Rx- Tx: 30 dB
k
a
Pre-condition: No influence from tower
structures more than 2m
bet
Ant and Tower.
( a in figure)
Vertical Separation:
Tx - Rx and Rx - Tx
Minimum 0.2 m
( k in figure)

3. Horizontal Separation
Requirements:
Tx -Rx and Rx- Tx: 30 dB
Horizontal Separation: See Table Below
Table:
Horizontal Separation
Gain dBi 900 Mhz 1800/1900 900+1800/1900
<10
1.5m
1m
>10
d
3m
5m
2.5 m
1m

4. Horizontal Separation
The following is valid for 900 Mhz.,
1800/1900Mhz and co-located 900 +
1800Mhz.
Requirements:
k
Rx -Tx and Tx - Rx: 30 dB
Combined Separation:
Vertical (k) : minimum 0.5m
Horizontal (d) : no limitation
d

5. Horizontal Separation
a
a = Separation between Rx
antenna
H
H = Height of mast plus
building

6. Table:
Horizontal Separation
900 MHz
1800/1900
Minimum:
4m
2m
Required:
6m
3m
Maximum Diversity
Minimum Diversity
a

7. Horizontal Separation
Table 3 900 Mhz: Height of antenna above roof
Distance (D) to obstacle edge
Height (H) above roof
0-1 m
0.5m
1-10m
2m
10-30m
3m
>30m
H
D
3.5m
if possible, use 2m as the minimum height if there is a risk
that people can walk close to the antenna.

8. Horizontal Separation
Table 3 1800/1900 Mhz: Height of antenna above roof
Distance (D) to obstacle edge
Height (H) above roof
0-2 m
0.5m
2-10m
1m
>10m
2m
H
if possible, use 2m as the minimum height if there is a risk
that people can walk close to the antenna.
D

9. Vertical Separation
The following is valid for 900 Mhz.,
1800,
1900Mhz
and
co-located
900+1800/1900 Mhz.
Requirements: Tx -Rx and Rx- Tx: 30 dB
k
Pre-condition: No influence from tower
structures in the forward
direction of antenna.
Vertical Separation:
Tx - Rx and Rx - Tx
Minimum 0.2 m
( k in figure)

10. Horizontal Separation
Requirements:
Tx-Rx and Rx-Tx: 30dB
Vertical Separation:
See Table Below
Hor. B.W.
65+/-10
0.4m
0.3m
0.3m
90+/-10
1m
0.5 m
0.5 m
105+/-10
1.5m
0.7m
0.7m
120+/-10
2m
1m
1m
180+/-10
k
900 Mhz
1800/1900
900+1800/1900
5m
2.5m
2.5m

11. Max 30º
90º
Forward Direction
Min 20 mm
Min 20 mm

12. Horizontal
Separation
Combined vertical /horizontal
the following is valid for 900 Mhz, 1800 /1900 Mhz and
co-located 900 + 1800/1900 Mhz
Requirements:
Tx -Rx and Rx- Tx: 30 dB
Vertical Separation:
k
vertical directionmin 0.5
horizontal direction
d
no limit

13. Diversity Separation and Antenna Ht.
Rxa
The relationship between the desirable
diversity separation and the antenna ht. Is given
by:
Rxb
Maximum diversity axis
900 Mhz: a >= H/10
H
a
1800/1900 a.>=H/20
a = distance between Rx ant.
H = height of mast + building

14. Horizontal Separation for Space Diverstiy
The horizontal separation between the antennas shall be as stated in thetable below:
Horizontal separation for space diversity
900 Mhz
1800/1900 Mhz
Minimum
4m
2m
Recommended
6m
3m

15. Horizontal Separation
Table 3 900 Mhz: Height of antenna above roof
Distance (D) to obstacle edge
Height (H) above roof
0-1 m
1-10m
2m
10-30m
3m
>30m
h
0.5m
3.5m
if possible, use 2m as the minimum height if there is a risk
that people can walk close to the antenna.
D

16. Horizontal
Separation
Table 3 1800/1900 Mhz: Height of antenna above roof
Distance (D) to obstacle edge
Height (H) above roof
0-2 m
2-10m
D
1m
>10m
h
0.5m
2m
if possible, use 2m as the minimum height if there is a risk
that people can walk close to the antenna.

17. Top View
Top View
Forward
Direction
WALL
Forward
Direction
WALL
Top View
Forward
Direction
WALL
More than 15º
15º
Minimum

18. Data
Value
Height (H)
Width (W)
D
W
A = 1.02455 m2
1550 mm
Depth (D)
H
1467 mm
661mm

19. The following is valid for 900
Mhz., 1800,1900Mhz and colocated 900 + 1800/1900 Mhz.
Vertical
Separation
Requirements: Tx -Rx and Rx- Tx: 30 dB
Receive
k
Pre-condition: No influence from tower
structures more than 2m
bet. Ant and Tower.
( a in figure)
Transmit
Vertical Separation: Tx - Rx and Rx - Tx
a
Minimum 0.2 m
( k in figure)