Siklu EH-8010FX, Инструкция по установке, эксплуатации и обслуживанию

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EtherHaul™ 8000 Installation, Operation and Maintenance Manual
Page 20
2.4 Required Tools
Ensure that you have the following tools with you when performing the radio link
installation:

Standard handheld digital voltage meter (DVM) with probes

Standard open-end wrench, 13 millimeter (or equivalent Hex socet)

8mm Allen key for ODU installation with 2ft antenna

Standard open-end wrench, 16 millimeter (or equivalent Hex socet)
installation with 2ft antenna

Philips screwdriver, medium size head for grounding connection

Flat head screwdriver, small size (2mm) for DC cable connection

Cable ties (for securing network and optional power cables)

Cutter
2.5 Preparing for Installation
The expected receive signal strength should be calculated prior to installing the link for,
based on the link budget.
Calculating the expected RSSI:
Where:

P
tx
– Radio’s Tx Power (typ5dBm)

Gant1 – Gain of antenna 1 (typically 35dBi)

Gant2 – Gain of antenna 2 (typically 35dBi)

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.
Refer to the online Link Budget Calculator on www.siklu.com for on-line
calculation of expected availability and expected RSSI.
RSSI = P
tx
+ G
ant1
– LFS – Att
atm
+ Gant2