User Juancho

1 vote

Accepted

Smith Chart - constant resistance circle and infinite resistance at right

answered Oct 29, 2022 at 16:29

2 votes

EIRP - Conservation of energy

answered Oct 8, 2021 at 15:17

1 vote

Accepted

Frequency modulation with gnuradio

answered Dec 2, 2019 at 14:52

6 votes

Accepted

Who regulates ham radio satellites?

answered Dec 27, 2017 at 16:45

1 vote

Are there receivers and transmitters that can be tuned to multiple frequencies at once?

answered Dec 9, 2017 at 23:37

0 votes

Field Strength calculations with known antennas

answered Apr 10, 2017 at 23:35

2 votes

Why is coax loss logarithmic?

answered Mar 14, 2017 at 14:36

4 votes

Using two antennas with IC751A — one for transmitting and another for reception

answered Jan 30, 2017 at 14:32

1 vote

How does the length of a metal sleeve around a (shieled) coax cable affect antenna performance?

answered Jan 10, 2017 at 20:27

3 votes

Accepted

Can one modify footprints in Gpredict?

answered Oct 27, 2016 at 17:37

0 votes

Why does an "electrically small" antenna have narrow bandwidth?

answered Oct 3, 2016 at 13:42

3 votes

Accepted

2.4GHz wifi parabolic antenna frequency response

answered Mar 25, 2016 at 17:13

3 votes

What would happen if I created this circuit?

answered Jul 9, 2015 at 14:58

5 votes

Why needs a carrier signal on receiver (SSB)

answered Jul 9, 2015 at 14:13

1 vote

Is it possible to have 2 FM transmitters on the same frequency?

answered Jun 10, 2015 at 1:34

1 vote

Theoretical Wifi antenna not working for the expected range

answered Jun 9, 2015 at 23:35

5 votes

What does radiation power mean?

answered May 15, 2015 at 20:26

3 votes

Command-line satellite tracking software

answered Apr 15, 2015 at 13:26

3 votes

What determines the optimum frequency range for the transmission of signals?

answered Apr 8, 2015 at 23:44

4 votes

Accepted

Can sub GHZ frequency can be used in space communciation?

answered Mar 11, 2015 at 13:17

8 votes

Accepted

What is the velocity factor of a wire?

answered Dec 9, 2014 at 14:53

0 votes

Reciprocity and SWR

answered Nov 11, 2014 at 15:35

6 votes

Accepted

How are capital letters sent in Morse code?

answered Sep 6, 2014 at 2:31

6 votes

Accepted

SDR - FM Radio station interference

answered Aug 17, 2014 at 16:50

8 votes

Accepted

Can two FM radios transmit two separate PL tones at the same time, and be received by two radios with matching PL tones?

answered May 16, 2014 at 21:07

8 votes

Accepted

What kind of antenna has a spiral connected to a reflector like this picture?

answered Apr 17, 2014 at 23:54

Stack Exchange Network

26 Answers

Smith Chart - constant resistance circle and infinite resistance at right

EIRP - Conservation of energy

Frequency modulation with gnuradio

Who regulates ham radio satellites?

Are there receivers and transmitters that can be tuned to multiple frequencies at once?

Field Strength calculations with known antennas

Why is coax loss logarithmic?

Using two antennas with IC751A — one for transmitting and another for reception

How does the length of a metal sleeve around a (shieled) coax cable affect antenna performance?

Can one modify footprints in Gpredict?

Why does an "electrically small" antenna have narrow bandwidth?

2.4GHz wifi parabolic antenna frequency response

What would happen if I created this circuit?

Why needs a carrier signal on receiver (SSB)

Is it possible to have 2 FM transmitters on the same frequency?

Theoretical Wifi antenna not working for the expected range

What does radiation power mean?

Command-line satellite tracking software

What determines the optimum frequency range for the transmission of signals?

Can sub GHZ frequency can be used in space communciation?

What is the velocity factor of a wire?

Reciprocity and SWR

How are capital letters sent in Morse code?

SDR - FM Radio station interference

Can two FM radios transmit two separate PL tones at the same time, and be received by two radios with matching PL tones?

What kind of antenna has a spiral connected to a reflector like this picture?