User hotpaw2

15 votes

Why do operators mention the band when calling CQ on phone?

answered Aug 25, 2021 at 16:07

14 votes

Why is 20m band waterfall showing signals every 50 kHz?

answered Dec 27, 2021 at 19:09

12 votes

Accepted

What is the decimal in Morse Code?

answered Aug 31, 2019 at 15:14

9 votes

Why is Morse code still in use?

answered Jan 7, 2014 at 9:35

9 votes

Device that plays only the audio component of a TV signal

answered Nov 14, 2022 at 17:05

8 votes

How is FT8 modulated with both upper side band and FSK?

answered Dec 9, 2022 at 17:37

7 votes

Is it legal to transmit with HackRF one?

answered Oct 15, 2018 at 17:13

6 votes

Accepted

Why were "PARIS" and "CODEX" considered "typical words"?

answered Dec 14, 2018 at 20:57

6 votes

Is copper-clad steel a good material for wire antennas?

answered Feb 7, 2014 at 1:32

6 votes

Why is gain used?

answered Mar 24, 2014 at 5:17

6 votes

Vertical Yagi spun at 1000 RPM: gain properties?

answered Oct 13, 2019 at 15:28

6 votes

Accepted

Calculation of transceiver current draw

answered Feb 14, 2020 at 19:25

6 votes

Accepted

Why can't we use a simple wire for receiving 2.4 GHz signals?

answered Apr 26, 2020 at 23:53

6 votes

Why are many ground radials preferable to a single ground stake buried 1m deep?

answered Jul 21, 2020 at 22:25

5 votes

Is the Boom Strictly Necessary in a Vertical Dipole?

answered Aug 21, 2020 at 18:58

5 votes

Radio Waves propagation (Intuitive Understanding of Wave propagation)

answered Sep 4, 2020 at 19:44

5 votes

Accepted

If WSPR can go further than FT8, why do I only see local WSPR signals?

answered Oct 19, 2020 at 5:36

5 votes

Is a magnetic loop antenna a good option for those in an apartment?

answered Dec 1, 2020 at 23:59

5 votes

What is a "dip relay" and how does one use it to build a transmitter?

answered Mar 12, 2014 at 5:04

5 votes

Is it legal to broadcast an FM radio signal with a Raspberry Pi Zero?

answered Feb 25, 2017 at 20:48

5 votes

How does selecting the opposite sideband when receiving CW on HF reduce interference?

answered Mar 11, 2017 at 23:29

5 votes

How to get professional or official clarification of FCC Part 97 rules for specific complicated situations?

answered Dec 5, 2017 at 21:19

5 votes

Accepted

Will using a 1:1 balun at the feedpoint of a center feed dipole result in no common mode current on the outside of the coax?

answered Sep 24, 2019 at 2:07

5 votes

What if all ham/Amateur radio frequencies are occupied, as ham/Amateur radio operators are increasing

answered Jan 29, 2022 at 19:32

5 votes

Does an antenna pick up signals of all frequencies or only its resonant frequency?

answered Feb 7, 2022 at 23:08

5 votes

SDR Transceiver over LAN

answered Apr 4, 2022 at 0:07

5 votes

Why are longer antennas not suitable to pick higher frequencies?

answered May 5, 2022 at 0:12

5 votes

Accepted

Would it be possible for a software-defined FM receiver to demodulate two signals on the same frequency?

answered May 8, 2022 at 4:01

5 votes

Why do Baofeng radios have such poor reception reliability?

answered Apr 28, 2022 at 1:42

5 votes

Common-mode choke (CMC) hurting my SWR. Live with it? Drop the choke?

answered Sep 20, 2021 at 16:17

Stack Exchange Network

277 Answers

Why do operators mention the band when calling CQ on phone?

Why is 20m band waterfall showing signals every 50 kHz?

What is the decimal in Morse Code?

Why is Morse code still in use?

Device that plays only the audio component of a TV signal

How is FT8 modulated with both upper side band and FSK?

Is it legal to transmit with HackRF one?

Why were "PARIS" and "CODEX" considered "typical words"?

Is copper-clad steel a good material for wire antennas?

Why is gain used?

Vertical Yagi spun at 1000 RPM: gain properties?

Calculation of transceiver current draw

Why can't we use a simple wire for receiving 2.4 GHz signals?

Why are many ground radials preferable to a single ground stake buried 1m deep?

Is the Boom Strictly Necessary in a Vertical Dipole?

Radio Waves propagation (Intuitive Understanding of Wave propagation)

If WSPR can go further than FT8, why do I only see local WSPR signals?

Is a magnetic loop antenna a good option for those in an apartment?

What is a "dip relay" and how does one use it to build a transmitter?

Is it legal to broadcast an FM radio signal with a Raspberry Pi Zero?

How does selecting the opposite sideband when receiving CW on HF reduce interference?

How to get professional or official clarification of FCC Part 97 rules for specific complicated situations?

Will using a 1:1 balun at the feedpoint of a center feed dipole result in no common mode current on the outside of the coax?

What if all ham/Amateur radio frequencies are occupied, as ham/Amateur radio operators are increasing

Does an antenna pick up signals of all frequencies or only its resonant frequency?

SDR Transceiver over LAN

Why are longer antennas not suitable to pick higher frequencies?

Would it be possible for a software-defined FM receiver to demodulate two signals on the same frequency?

Why do Baofeng radios have such poor reception reliability?

Common-mode choke (CMC) hurting my SWR. Live with it? Drop the choke?