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Before power on the microwave equipment at the first time after installation, use a galvanometer to check whether circuit breaker voltage is within the operating voltage range of the device.

A.

True

B.

False

What are the types installation of direct Mounting Mode Single-Polarized Antenna?

A.

Separate mounting

B.

Direct mounting

C.

Triple mounting

Which of the following statements about the high site of a microwave link is correct?

A.

A high site has a higher transmit frequency.

B.

A high site has a higher receive frequency.

C.

A high site is geographically high.

D.

A high site has a lower transmit frequency.

What is the height of RTN 950 IDU? (lU=44.45mm)

A.

1U

B.

2U

C.

4U

D.

3U

Site environmental risks need to be assessed by all personnel on the day of visiting the site, or be assessed on the next day.

A.

True

B.

False

A certain amount of rainfall introduces space loss of a distance unit. What is the difference between space loss on a 7 GHz microwave link and that on a 15 GHz microwave link?

A.

The 7 GHz microwave link attenuation is the same as the space loss with 15 GHz microwave link.

B.

The 7 GHz attenuation Is smaller than the space loss with 15 GHz microwave link.

C.

The 7 GHz microwave link attenuation is larger than the space loss with 15 GHz microwave link.

On-tower preparations mainly include selecting the azimuth angle and height for pole mounting based on the engineer experience .

A.

True

B.

False

Which of the following frequency bands are commonly used for digital microwave transmission?

A.

2GHz

B.

18GHz

C.

15GHz

D.

11GHz

E.

7GHz

What is the Tx frequency of the high site if the Tx frequency and T/R spacing of the low site are 24944 MHz and 460 MHz respectively?

A.

25944

B.

27684

C.

26406

D.

25404

Which of the following antenna information do we need to know before antenna installation?

A.

Pole for installing the antenna

B.

Installation height

C.

Azimuth angle

D.

Antenna polarization