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OH2FXN's user avatar
OH2FXN's user avatar
OH2FXN's user avatar
OH2FXN
  • Member for 10 years, 6 months
  • Last seen more than 1 year ago
8 votes
Accepted

How does a "chip antenna" work?

7 votes

If two antennas of 50 Ω and 377 Ω have VSWR=1:1, then which one is more efficient?

5 votes
Accepted

Understanding RG6-75 ohm Cable Impedance

5 votes

Can a person in Portugal get an amateur radio license in another country?

4 votes

How to design a rubber ducky antenna

4 votes

Is the 3-cm band serviced by any commercial main-stream ham radio transceiver?

4 votes
Accepted

Can I filter after modulation when using a square wave oscillator?

4 votes

Demodulating ISO14443 (part of NFC) using SDR?

3 votes
Accepted

How to increase the range of the spectrum analyzer in SDRSharp?

3 votes
Accepted

Will swapping receiver polarity on a spiral antenna change right hand to left hand polarization?

3 votes

Does propagation affect magnetic and electric fields equally?

3 votes
Accepted

If I parallel two crystal filters together, will that double the bandwidth?

2 votes

Does the impedance along a transmission line change when there are standing waves?

2 votes

What is really happening during RF ionospheric refraction?

2 votes

How to choose right inductors for a matching circuit

1 vote

Why does ice on a wire dipole affect the SWR?

1 vote

Resistive impedance with frequency

1 vote

How would I calculate aperture efficiency for an antenna?

1 vote
Accepted

Frequency selective surfaces working principle

1 vote

How much field strength to blow out a receiver?