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Cecil - W5DXP's user avatar
Cecil - W5DXP's user avatar
Cecil - W5DXP's user avatar
Cecil - W5DXP
  • Member for 5 years, 5 months
  • Last seen more than 4 years ago
10 votes

Impedance ratio vs. SWR

6 votes

Can ferrite beads lower coax cable velocity factor?

6 votes

How can the voltage at the center of a resonant half wave dipole be zero if the input impedance is 75 ohms?

6 votes
Accepted

What happens to the transmitted power cancelled out by a yagi antenna's reflector?

6 votes

Ham operators often tell me that comparing gain to an isotropic radiator isn't much use because it's only a theoretical antenna, is this true?

6 votes
Accepted

Why does ladder line generally have a lower loss than coaxial cable?

5 votes

Estimating the efficiency of a shortened (loaded) antenna

5 votes
Accepted

Fan dipole radiation pattern

4 votes

How can the impedance of a half wave dipole at its resonant frequency be purely resistive when the voltage and current are seemingly not in phase?

4 votes

How does the signal know where the cable ends and the antenna starts?

4 votes

Grounding a second-story shack with an outdoor antenna

4 votes

Coax or bifilar windings for a choke?

4 votes

Why can I receive a vertically polarized signal on a horizontally polarized antenna on HF and vice versa?

4 votes
Accepted

Are there reasons why a receive-only wire antenna should not be λ/2 in length?

4 votes

How to estimate ladder line loss?

4 votes
Accepted

Can I use a 1:1 current balun to feed a 1/4λ vertical?

4 votes
Accepted

Give vertical antenna directional gain?

4 votes

Will electrically joined dipoles of different lengths, at right angles, behave as a multiband antenna?

3 votes
Accepted

Are stainless steel studs acceptable as a feedpoint connector for an aluminum loop antenna?

3 votes

How to Measure Signal Strength

3 votes

Digital transmission sounds

3 votes

Why are there differences in antennas that depend on electrical component and magnetic component of a radio wave?

3 votes

Why some hams test their baluns with an SWR meter?

3 votes

WSJT-X V2: How to identify stations already logged?

2 votes

What is the purpose of the German CW exam if it is not required to use CW?

2 votes

Can I use a helical ground plane radial in the same way that a loading coil works?

2 votes

What is the peak voltage at the tips of a dipole antenna?

2 votes

What is Electrical length in RF and how to electrically cut and measure the RF cable in degree?

2 votes

Why long wire antenna length shouldn't be a multiple of λ/2?

2 votes

Does a loop antenna have less susceptibility to atmospheric noise than an open ended antenna?