EH-500/600 Installation Manual
Page 23
7mm Hex socket driver
7mm Hex flat open-end wrench
Cable ties (for securing network and optional power cables)
Cutter
Cable labeling
2.5 Preparing for Installation
The expected receive signal strength should be calculated prior to installing the link for
each antenna ODU (read from the DVM) prior to installation, based on the network link
budget.
Calculating the expected RSSI:
Where:
P
tx
– ODU’s Tx Power (typically +5dBm)
Gant1 – Gain of antenna 1 (typically 37dBi)
Gant2 – Gain of antenna 2 (typically 37dBi)
LFS – Loss of Free Space = 92.45+20*Log (D
Km
*F
GHz
)+
- D - Link distance in Km
- F – Frequency in GHz
Att
atm
– Attenuation due to Atmospheric Gases (dB/Km)
For E-band links, the Attenuation due to Atmospheric Gases is typically
0.5dB/Km.
For V-band links, the Attenuation due to Atmospheric Gases is significantly
higher (up to 15dB/Km) and depends on the specific channel used and the exact
geographical location.
Refer to EtherHaul Link Budget Calculator for on-line calculation of expected
availability and expected RSSI.
To Next Page
Loading...
