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11 votes
5 answers
9k views

What is dBm and why is it used rather than watts?

1 vote
0 answers
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"Shuttlecock" antenna

0 votes
0 answers
10 views

DMR Physical RF connectivity

0 votes
1 answer
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1 vote
1 answer
104 views

Can you cancel an FCC application for a vanity callsign?

5 votes
2 answers
2k views

What makes amplifiers so expensive?

3 votes
1 answer
64 views

PCB Yagi-Uda impedance matching and other smaller problems

3 votes
1 answer
138 views

IC-7200 S-meter behaves strangely - why?

2 votes
1 answer
535 views

What type of antenna is this on Wikipedia?

1 vote
0 answers
49 views

Linux APRS to ethernet+LoRa service

2 votes
2 answers
91 views

Is non-ionizing radiation actually dangerous?

3 votes
1 answer
55 views

Ground plane connection to screen

1 vote
2 answers
182 views

What is this pulsating signal?

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20 views

Using a loading coil antenna for HF reception

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