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12 votes
3 answers
3k views

How are secret encodings not a violation of amateur radio regulations?

2 votes
1 answer
26 views

Will 2 ferrite beads taped side by side perform the same as a single-piece binocular core?

1 vote
4 answers
4k views

How to increase the bandwidth of half-wave dipole antenna?

2 votes
1 answer
309 views

How can I know (check or detect or analyze) which modulation using of my remote control switch?

2 votes
1 answer
72 views

Can anyone identify what _kind_ of radio this Viking "Mercury" radio is?

1 vote
3 answers
2k views

When to log a callsign suffix for a QSO?

0 votes
2 answers
37 views

What is the radiation pattern of a center fed dipole on the ground?

0 votes
3 answers
64 views

Will antenna insulation protect from RF burns?

0 votes
1 answer
34 views

Configuring an antenna for (short distance) ground wave propagation on 40 m?

0 votes
3 answers
80 views

Formulae for monopole antenna inductance/capacitance

4 votes
1 answer
4k views

How do I set up my radio for Echolink?

2 votes
1 answer
103 views

Two different dipoles attached to three trees

2 votes
1 answer
874 views

Calculating a real antenna gain from electric field strength?

2 votes
1 answer
207 views

Half wave dipole with parasitic element, (Gain calculation)

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