Amateur Radio for Smart People
This week’s Tech question comes from sub-element 2 (Operating Procedures,) group B (Q signals) [T2B10] Which Q signal indicates that you are receiving interference from other stations? A. QRMB. QRNC. QTHD. QSB There’s really no good way to understand what the Q signals mean except to memorize them. I know, I know, it goes against … Read more
This week’s Tech Class question is pulled from sub-element 4 (Amateur radio practices and station set up), section B (AGC) [T4B12] What is the function of automatic gain control or AGC? A. To keep received audio relatively constant B. To protect an antenna from lightning C. To eliminate RF on the station cabling D. An … Read more
The Technician class question for this week is from sub-element 1 section F, essentially “the rules.” [T1F13] [97.103(c)] When must the station licensee make the station and its records available for FCC inspection? A. At any time ten days after notification by the FCC of such an inspection B. At any time upon request by … Read more
The Technician question of the week comes from sub-element 7 (antenna measurements) section C (SWR measurement) [T7C05] What is the approximate SWR value above which the protection circuits in most solid-state transmitters begin to reduce transmitter power? A. 2 to 1 B. 1 to 2 C. 6 to 1 D. 10 to 1 Once you … Read more
This week’s Tech question is from sub-element 5 (Electrical Principles) group A (units) [T5A11] What is the basic unit of electromotive force? A. The volt B. The watt C. The ampere D. The ohm This is one of the fundamental concepts when dealing with electricity, and therefore radio. The standard units that we use to … Read more
