The Operator
Licensed in 1999. I build things for hams — practice exams, a repeater atlas, radio manuals — and write about the repairs, the gear, and the odd corners of the hobby. Everything I make lives at bg7bag.com.
From the Workbench
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A Hundred Kilometers for a Speaker
Driving a hundred kilometers to replace one blown speaker in a club's Hytera MD610 — because the club's rigs are everyone's rigs.
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How I Got $1,500 Back From Insurance for Flood-Damaged Ham Radio Gear
Flood water took out the mobile rig. Paperwork, patience, and a full payout — a field guide for the rest of us.
Practice Exams
FCC Practice Exams
Technician, General, and Extra — full question pools, practice and timed mock modes, in English with Chinese support.
Start practicing →CRAC Practice Exams
China's amateur radio license exams — Class A, B, and C, bilingual question banks with the same drill modes.
Start practicing →Ham Radio Atlas
An interactive repeater coverage map — repeaters, POTA, SOTA, beacons, time-signal stations and more across the US, Australia, China, Austria and New Zealand, with theoretical coverage circles. Open the atlas →
New to the atlas? Read the user guide →
More Ham Resources
Study Hub
All the practice exams in one place — FCC and CRAC, with timed mock modes.
Open the study hub →Ham Radio Toolbox
Free browser tools for hams — calculators, converters, and generators.
Open the toolbox →QSL Information
QSL via bureau or direct. Bureau cards welcome — no need to ask first. Direct QSL: please include return postage (SASE / sufficient IRC or green stamps).
SWL reports welcome and answered the same way.