Month: July 2025

Posted on

Amateur Band Sudoku Puzzle Solution

From our August 2025 Inner Circle Newsletter

Congratulations to everyone who solved last month’s puzzle!

PUZZLE SOLVED! All 81 cells filled correctly with the 9 amateur radio bands!
160m
80m
40m
20m
15m
10m
6m
2m
70cm
70cm
20m
15m
6m
2m
40m
80m
160m
10m
6m
10m
2m
80m
70cm
160m
20m
40m
15m
80m
40m
160m
15m
10m
6m
70cm
20m
2m
20m
6m
10m
70cm
2m
15m
40m
80m
160m
2m
15m
70cm
40m
160m
80m
10m
6m
20m
10m
70cm
6m
160m
80m
20m
2m
15m
40m
15m
160m
20m
2m
6m
70cm
40m
10m
80m
40m
2m
80m
10m
20m
15m
160m
70cm
6m

Solution Key

80m
Original clues from puzzle
40m
Solved cells
27 Given Clues
54 Cells to Solve
9 Amateur Bands
Posted on

Amateur Band Sudoku Puzzle

From our July 2025 Inner Circle Newsletter

Fill each row, column, and 3×3 box with all 9 amateur bands

Rules: Each row, column, and 3×3 box must contain exactly one of each amateur radio band (160m through 70cm). Blue cells contain given clues to help you solve the puzzle.
____
80m
____
____
15m
____
____
2m
____
____
____
15m
____
____
40m
____
____
10m
6m
____
____
80m
____
____
20m
____
____
____
40m
____
____
10m
____
____
20m
____
20m
____
____
____
2m
____
____
____
160m
____
15m
____
____
____
80m
____
6m
____
____
____
6m
____
80m
____
2m
____
____
15m
____
____
2m
____
____
____
10m
____
____
2m
80m
____
____
15m
____
____
6m

Amateur Radio Bands

160m
160 meters
1.8 MHz (Top Band)
80m
80 meters
3.5 MHz
40m
40 meters
7 MHz
20m
20 meters
14 MHz (DX Band)
15m
15 meters
21 MHz
10m
10 meters
28 MHz
6m
6 meters
50 MHz (Magic Band)
2m
2 meters
144 MHz
70cm
70 centimeters
420 MHz

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