General: S-Meter

This time our General question is about, well, s-meters! [G4D06] Where is an S meter found? A. In a receiver B. In an SWR bridge C. In a transmitter D. In a conductance bridge The answer is, A. In a receiver.  Now, in most modern transceivers, the receiver and transmitter are packaged in the same …

Read moreGeneral: S-Meter

General: Generator Safety


This weeks’ General question is from sub-element zero (Electrical Safety) section B (Safety in the Shack) [G0B13] What must you do when powering your house from an emergency generator? A. Disconnect the incoming utility power feed B. Insure that the generator is not grounded C. Insure that all lightning grounds are disconnected D. All of …

Read moreGeneral: Generator Safety

General: NiCd Battery Resistance

NiCd Battery Disassembled

This week’s General Class exam question is from sub-element 6 (Resistors; capacitors; inductors) section B (batteries)… [G6B13] What is an advantage of the low internal resistance of nickel-cadmium batteries? A. Long life B. High discharge current C. High voltage D. Rapid recharge Nickel Cadmium, or NiCd, rechargeable batteries aren’t as popular as they once were, …

Read moreGeneral: NiCd Battery Resistance

General: Using Wind Power

Which of the following is a disadvantage of using wind as the primary source of power for an emergency station? [G4E11] A. The conversion efficiency from mechanical energy to electrical energy is less than 2 percent B. The voltage and current ratings of such systems are not compatible with amateur equipment C. A large energy …

Read moreGeneral: Using Wind Power