ARRL Research Skills 3 — Questions and Answers
Question 1: What is the ARRL's 'QST' magazine primarily used as a research resource for?
- Legal filings with the FCC
- Current technical articles, product reviews, and operating news for amateurs (Correct answer)
- International treaty negotiations
- Contest result adjudication
Correct answer: Current technical articles, product reviews, and operating news for amateurs
QST is ARRL's flagship monthly journal, providing peer-reviewed technical articles, equipment reviews, and operating information that serve as primary research references.
Question 2: How would you determine the current license class privileges for a General class licensee on 40 meters?
- Check the ARRL Band Plan chart, which overlays privileges by license class (Correct answer)
- Ask on a local repeater
- Review the FCC ULS database entries for active callsigns
- Check the DX Atlas software
Correct answer: Check the ARRL Band Plan chart, which overlays privileges by license class
The ARRL Band Plan chart visually displays frequency subbands and the license class privileges (Technician, General, Amateur Extra) for each portion of every amateur band.
Question 3: Which database would you search to verify that a foreign amateur's callsign is valid before logging a DX contact?
- QRZ.com or CLUBLOG international callsign database (Correct answer)
- FCC ULS (US Licensee database only)
- The ARRL DXCC country list
- The ITU Master Frequency Register
Correct answer: QRZ.com or CLUBLOG international callsign database
QRZ.com and CLUBLOG maintain international amateur callsign databases sourced from national licensing authorities, making them useful for verifying DX callsign validity.
Question 4: What is the 'ARRL Technical Correspondence' section useful for when researching an obscure antenna design question?
- Finding contest scores
- Accessing published letters and responses from engineers on specific technical topics (Correct answer)
- Downloading antenna modeling software
- Submitting interference complaints
Correct answer: Accessing published letters and responses from engineers on specific technical topics
ARRL Technical Correspondence (historically published in QST) contains reader letters and expert responses on narrow technical questions, often covering edge cases not in handbooks.
Question 5: Where would you find the official list of current ARRL/IARU HF beacons used to assess band conditions?
- The NCDXF/IARU International Beacon Project website (Correct answer)
- The FCC Part 15 database
- The NOAA Space Weather Prediction Center
- The DX Cluster at dxwatch.com
Correct answer: The NCDXF/IARU International Beacon Project website
The NCDXF/IARU International Beacon Project website lists the 18 synchronized HF beacons on 14.100, 18.110, 21.150, 24.930, and 28.200 MHz and their transmission schedules.
Question 6: Which source provides the definitive list of DXCC entities and their deleted or current status?
- The ARRL DXCC List, maintained and published by ARRL (Correct answer)
- The ITU country code database
- The ISO 3166 country list
- The CIA World Factbook
Correct answer: The ARRL DXCC List, maintained and published by ARRL
The ARRL administers the DXCC (DX Century Club) award program and maintains the official, current list of ~340 active and deleted DXCC entities.
Question 7: A ham wants to research the noise floor of a specific receiver model before purchasing. Which resource type is most appropriate?
- W1AW digital bulletins
- ARRL Lab test reports published in QST product reviews (Correct answer)
- The FCC equipment authorization database
- The IARU Region 2 band plan
Correct answer: ARRL Lab test reports published in QST product reviews
ARRL Lab product reviews in QST include measured receiver specifications like MDS (minimum discernible signal), reciprocal mixing, and noise figure from controlled lab testing.
ARRL Research Skills 3
What is the ARRL's 'QST' magazine primarily used as a research resource for?