|
|
MICROWAVE LINK BUDGET |
|
|
|
|
|
|
5.8 GHz Single-band U-NII, +53 dBm EIRP (US/Canada) |
|
|
|
|
|
|
|
|
|
|
|
New TMCC to KEYA-FM path |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Antenna Gains: |
|
|
|
|
|
|
Type |
dBi |
|
|
|
|
|
1ft flat |
23.5 |
|
Frequency |
5.8 |
GHz |
|
2ft flat |
28.0 |
|
|
|
|
|
2ft dish |
28.5 |
|
Distance |
2.3 |
Miles |
|
3ft dish |
32.2 |
|
|
|
|
|
4ft dish |
34.8 |
|
Path loss |
119.1 |
dB |
|
6ft dish |
38.2 |
|
|
|
|
|
8ft dish |
40.7 |
|
Climate Factor |
0.25 |
(see table) |
|
|
|
|
Terrain Factor |
1 |
(see table) |
|
Climate |
Terrain |
|
|
|
|
Average |
0.25 |
1.00 |
Average |
|
|
|
Dry |
0.1 |
0.25 |
Mountainous |
Adjusted Tx Power |
17 |
dBm |
Humid |
0.5 |
4.00 |
Smooth |
Feeder Length |
100 |
ft |
|
|
|
|
Feeder Loss Spec |
7 |
dB loss/100ft (see table) |
|
Transmission Line Loss: |
|
|
Additional Losses |
3 |
dB |
|
Type |
|
dB/100ft |
Tx Antenna Gain |
28.5 |
dB (see table) |
|
1/2", LMR-600 |
|
6.1, 7.3 |
|
|
|
|
5/8", LMR-900 |
|
4.7, 4.9 |
Rx Antenna Gain |
28.5 |
dB (see table) |
|
EW-52 |
|
1.3 |
Feeder Length |
200 |
ft |
|
|
|
|
Feeder Loss Spec |
7 |
dB loss/100ft (see table) |
|
Threshold Specifications: |
|
|
Additional Losses |
3 |
dB |
|
Model # |
|
Threshold (dBm) |
Receiver Threshold |
-79 |
dBm (see table) |
|
27710 (DS3, 45M) |
|
-79 |
Received Signal Level |
-72.1 |
dBm |
|
|
|
|
Fade Margin |
6.9 |
dB |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Availability (one way) |
99.999099% |
|
|
|
|
|
Outage Time (one way) |
4.74 |
min/year |
|
|
|
|