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26 posts edited

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16 Answers

Votes Activity Newest

39

Why do hams often conclude messages with “73”?

Oct 25 '13 at 18:50

16

What do “QRM” and “QSB” refer to?

Oct 23 '13 at 1:49

15

Encrypted traffic and amateur radio

Oct 22 '13 at 21:08

10

Why is the solar-flux index measured at 10.7 cm?

Oct 23 '13 at 21:36

9

How to find the front-to-back ratio given an antenna radiation pattern diagram?

Oct 23 '13 at 21:44

8

1280 MHz propagation out of a mountain valley

Nov 14 '13 at 22:43

7

Is there a disadvantage to using a cheap HT for APRS?

Nov 24 '13 at 18:43

7

How to calculate the peak-to-peak voltage of a sine wave given RMS voltage

Oct 23 '13 at 23:49

7

Secure communication over Amateur-band HSMM / 802.11 in the United States

Oct 23 '13 at 0:50

7

How is ARES different from RACES?

Oct 23 '13 at 16:39

5

Is any licensing require to receive in the amateur radio bands?

Nov 27 '13 at 7:11

4

What is the record for the highest non-automated over-the-air CW WPM speed?

Jan 24 '14 at 17:08

4

What kind of additional privileges or access do I get with each successive US license?

Oct 22 '13 at 22:55

3

Uni-Directional Simplex repeater?

Nov 17 '13 at 3:54

3

Where can I find the official definition of ITU Zones?

Oct 23 '13 at 20:30

0

Baofeng UV-82 Dual-Band (2m/70cm) HT Channel Clear Error

Oct 30 '13 at 4:09

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