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hotpaw2
  • Member for 10 years, 3 months
  • Last seen more than a week ago
3 votes
3 answers
995 views

Maximum legal QRQ CW speed?

3 votes
2 answers
1k views

Advantages of IQ mixer versus direct sampling SDR architectures?

3 votes
4 answers
3k views

What is the use of dual VFOs?

3 votes
4 answers
1k views

POTA and SOTA Spotting networks?

2 votes
1 answer
204 views

Reasons for an antenna tuner at the transmitter other than transmitter protection?

2 votes
0 answers
88 views

Which digital modes are formally specified sufficiently to be implemented?

2 votes
2 answers
2k views

Short low dipole, better if horizontal or vertical?

2 votes
2 answers
108 views

What contemporary digital modes do not require a GUI? [closed]

2 votes
1 answer
123 views

Buzzing FM interference

2 votes
1 answer
598 views

What is an Audio Peaking Filter?

2 votes
2 answers
2k views

Multi-turn large/full-wave loop antennas?

2 votes
2 answers
764 views

What are the biggest amateur radio contests ("radiosport")?

2 votes
1 answer
379 views

Physical QSL card request procedures?

2 votes
2 answers
175 views

How to safely connect a digital output to a receiver's antenna input?

2 votes
2 answers
331 views

Can an SSB transmitter be used to transmit PSK?

2 votes
2 answers
768 views

Lightbulb as an SWR detector?

2 votes
2 answers
736 views

FSK or M-PSK for weak signal communications?

2 votes
2 answers
163 views

Terminology for written "CW-like" Code?

2 votes
2 answers
220 views

Measuring antenna characteristics without physical access?

1 vote
1 answer
684 views

SDR demodulation of SSB

1 vote
1 answer
2k views

Spacing between words in CW using Farnsworth timing?

1 vote
2 answers
179 views

ID station when testing an oscillator or transmitter into a dummy load?

1 vote
1 answer
142 views

Diplexer termination?

1 vote
1 answer
822 views

Wiring a CW paddle and straight key to a TRS connector?

1 vote
2 answers
774 views

Benefits of AGC?

1 vote
2 answers
1k views

Loop on ground for transmit?

1 vote
2 answers
388 views

What is Logbook Of The World or LOTW?

1 vote
1 answer
66 views

What are the unintentional radiation limits in U.S. HF bands?

0 votes
2 answers
287 views

Isolated linearly loaded antenna?

0 votes
1 answer
436 views

What is the most common CW audio filter center frequency?