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Scott Earle
Moderator
  • Member for 8 years, 5 months
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15 votes
Accepted

Why are vacuum tubes still used in amateur radios?

12 votes
Accepted

What does QSL mean in a CW conversation?

12 votes
Accepted

What is homebrew?

12 votes
Accepted

What was the origin of the Morse code abbreviations "hi" and "es"?

10 votes

Why is Morse code still in use?

8 votes

Visible radio wave propagation

7 votes
Accepted

Why can I hear Morse when not in CW mode?

7 votes

New operator struggling to make a contact

6 votes

How can I check if my CB radio is AM or AM/SSB?

6 votes

What equipment and software do I need to read raw civilian GPS signals on my Mac?

6 votes
Accepted

Is there any practical advantage to a parabolic reflector over a high-gain beam antenna?

6 votes

Can I talk 2 Meter VHF across the United States

6 votes

Full UK license visiting US: Can I use frequencies in US but not UK license?

6 votes

What exactly is a "balanced modulator"?

5 votes

What has happened to HF?

5 votes

Are QRP transceivers only meant for CW communication?

5 votes
Accepted

HackRF + Amplifier = HF/VHF QRP Radio?

5 votes

How to find transmitting (voice and CW) Amateur stations in UK?

5 votes

OK for S/RF light to be illuminated at engine idle?

5 votes

Private Channel?

5 votes

How to measure wire for antenna leg | 40m inverted V

5 votes
Accepted

Restricted line-of-sight communication

4 votes

What are the advantages for a receiver that uses an IF compared to direct conversion?

4 votes

Which 10 m antenna will give the most rejection in one direction for received signals which are vertically polarized?

4 votes

What nations still require Morse code testing for Amateur radio license?

4 votes

What is "up" and "down", and is it consistent with "top band"?

4 votes
Accepted

What gain and power are required for successful DX contacts on 2m/70cm bands in CW?

4 votes
Accepted

How proper HIHI sounds like?

4 votes

LSB modulation and demodulation

4 votes
Accepted

Zigzag line on CB band

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