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1 vote
0 answers
10 views

What lengths of counterpoise is suitable to support a 58 foot "random wire" antenna?

0 votes
2 answers
46 views

Understanding Coax Impedance when Connected to Reactive Load

3 votes
2 answers
206 views

DIY Short Vertical Wire Loaded Antenna: Using 20 Ohm Resister to Widen Q

1 vote
1 answer
66 views

Link budget validation for a UHF satellite ground station

3 votes
1 answer
86 views

Parameters needed to calculate inductor value to achieve proper phase delay?

2 votes
2 answers
112 views

Measuring actual feedpoint impedance for a given frequency

1 vote
1 answer
74 views

How is it possible for a halfwave dipole antenna to be resonant?

2 votes
1 answer
76 views

What is the signal of a receptor antenna irradiated with a plane wave?

2 votes
4 answers
132 views

Is an off-center fed dipole (and/or doublet) inherently unbalanced?

0 votes
3 answers
94 views

ELF antenna receiver build instructions?

2 votes
3 answers
101 views

Why does an HF "monopole" need dozens and dozens of radials while a VHF/UHF "ground plane" antenna only needs four?

19 votes
2 answers
29k views

How does a mag mount antenna achieve a ground plane?

23 votes
2 answers
5k views

How do Handheld antennas work without ground?

9 votes
2 answers
2k views

Why are longer antennas not suitable to pick higher frequencies?

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