LINK MONITOR SUBSYSTEM

Question 1

What is the function of the Link Monitor Subsystem?

Answer 1

Signal monitoring and testing

Also to interface with the ALCS and UHF C3 for offline testing of the UHF signals and UHF Communication levels

Question 2

Where is the Link Monitor Control panel?

Answer 2

P30 bay 1

Question 3

What is the power requirement for the Link Monitor control panel?

Answer 3

28VDC from 28VDC DISTR 2 PNL

Question 4

What is the function of the Link Monitor control panel?

Answer 4

To provide primary control of the Variable Attenuator.

Question 5

What is the location of the Variable Attenuator?

Answer 5

Aft P20 bay 1

Question 6

What is the function of the Variable Attenuator?

Answer 6

to reduce the UHF RF signal level.

Question 7

What is the Location of the Step Attenuator?

Answer 7

P30 bay 2

Question 8

What is the function of the Step Attenuator?

Answer 8

To reduce the RF signal level to the Spectrum Analyzer to prevent oversaturation

Question 9

Where is the Spectrum Analyzer located?

Answer 9

P30 bay 2

Question 10

What is the power requirement for the Spectrum Analyzer?

Answer 10

115 VAC 60Hz from P67-3 C/B panel (via the 60Hz distribution box in E15 rack)

Question 11

What is the function of the Spectrum Analyzer?

Answer 11

To measure the transmitting power of the C3 radio and the TX and RX baseband signals from the UHF C3 radio subsystem.

Question 12

Where is the Handheld Voltmeter located and what are it’s power requirements?

Answer 12

P30 bay 1 and uses a 9 volt battery

Question 13

Where is the UHF C3 power meter located?

Answer 13

P30 above MCS Display 3.

Question 14

What is the function of the UHF C3 power meter?

Answer 14

To measure the forward or reflected power for UHF C3 1,2, and 3.

Question 15

Each power sensor has ______ element for forward power measurement and ______ element for reflected power measurement?

Answer 15

2,500 Watt sensor

500 Watt sensor