(L)Element 3-81 Troubleshooting

Question 1

On a 150 watt marine SSB HF transceiver, what would be indicated by a steady output of 75 watts when keying the transmitter on?

Answer 1

There is probably a defect in the system causing the carrier to be transmitted

Question 2

The tachometer of a building’s elevator circuit experiences interference caused by the radio system nearby. What is a common potential “fix” for the problem?

Answer 2

Add a .01 µF capacitor across the motor/tachometer leads.

Question 3

A common method of programming portable or mobile radios is to use a:

Answer 3

A laptop computer.

Question 4

In a software-defined transceiver, what would be the best way for a technician to make a quick overall evaluation of the radio’s operational condition?

Answer 4

Use the built-in self-test feature.

Question 5

How might an installer verify correct GPS sentence to marine DSC VHF radio?

Answer 5

Look for latitude and longitude on the display.

Question 6

What steps must be taken to activate the DSC emergency signaling function on a marine VHF?

Answer 6

Input of registered 9-digit MMSI.