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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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