INSTALLATION

ANTENNA CONSIDERATIONS

For reference, the chart below shows approximate loss figures for typically-available coaxial cables frequently used in VHF/UHF installations.

Loss in dB per 30 m (100 feet) for Selected 50-Ohm Coaxial Cables

(Assumes 50-ohm Input/Output Terminations)

CABLE TYPE

LOSS: 144 MHZ

LOSS: 430 MHZ

RG-58A

6.5

> 10

RG-58 Foam

4.7

8

RG-213

3.0

5.9

RG-8 Foam

2.0

3.7

Belden 9913

1.5

2.9

Times Microwave LMR-400

1.5

2.6

7/8” “Hardline”

0.7

1.3

Loss figures are approximate; consult cable manufacturers’ catalogs for

complete specifications.

In outdoor installations, be certain to weatherproof all connectors thoroughly, as water entering a coaxial cable will cause losses to escalate rapidly, thus diminishing your communications effectiveness. The use of the shortest possible length of the highest quality coaxial cable that fits within your budget will ensure the best performance from your FT-8800R.

FT-8800R Operating Manual

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