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hotpaw2
  • Member for 8 years, 4 months
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15 votes

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

13 votes

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

10 votes
Accepted

What is the decimal in Morse Code?

9 votes

Why is Morse code still in use?

7 votes

Is it legal to transmit with HackRF one?

6 votes
Accepted

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

6 votes

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

6 votes

Why is gain used?

6 votes

Vertical Yagi spun at 1000 RPM: gain properties?

6 votes
Accepted

Calculation of transceiver current draw

6 votes
Accepted

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

6 votes

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

5 votes

Is the Boom Strictly Necessary in a Vertical Dipole?

5 votes

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

5 votes

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

5 votes

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

5 votes

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

5 votes

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

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?

5 votes

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

5 votes

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

5 votes

Why are longer antennas not suitable to pick higher frequencies?

5 votes
Accepted

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

5 votes

SDR Transceiver over LAN

4 votes

Small shortwave (20MHz) directional antenna design

4 votes

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

4 votes

Follow Up on a previous question- Transmit antenna on HF band

4 votes
Accepted

What are best practices against spurious frequencies (birdies) in the superheterodyne design?

4 votes

Does an RF amplifier allow us to receive a signal from further away?

4 votes

Tuner at antenna side versus transmitter?

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