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3

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3k

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How can I add amplitude modulation to this transmitter?

diy

Jul 14 at 16:12 cong han 1

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90

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Method to generate PIM

rfi

Apr 29 at 11:15 vu2nan 567

2

22

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How do Handheld antennas work without ground?

Mar 16 at 11:23 user10489 1,855

1

14

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1

answer

7k

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How do I change my registered address with the FCC?

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1

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1

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Where to find FM satellite information

satellites

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3

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1

answer

1k

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Max El vs Max El Azimuth

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Dec 10 at 17:07 mike65535 807

1

3

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5

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How do I get a coordinated frequency assigned for my repeater?

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Nov 20 at 7:00 Seth 1

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33

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4

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47k

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Effect of different metals for antenna elements

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Nov 19 at 11:14 Andrew 1,910

9

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5

answers

4k

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Is it illegal to key up and not identify?

united-states legal procedure repeater

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2

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1

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76

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Transferring old callsign to a club?

united-states legal callsign

Jun 26 '19 at 4:57 Community♦ 1

5

votes

4

answers

166

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Do signals have to be more separated on higher frequencies?

bandwidth

May 29 '19 at 22:46 mike65535 807

7

votes

5

answers

2k

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Using Earth as an RF ground

grounding earth

Apr 14 '19 at 6:17 pupeno - M0ONP ACI1DM LU5ARC 1,059

1

6

votes

2

answers

254

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Does amateur radio induce a health risk?

rf-power equipment-operation safety

Apr 13 '19 at 14:37 Mike Waters♦ 6,335

2

9

votes

3

answers

10k

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Calculating Doppler Shift for satellites

satellites doppler

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2

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2

answers

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Field Strength calculations with known antennas

antenna antenna-theory

Feb 27 '19 at 12:54 Richard Fry 2,519

1

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1

answer

2k

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Homebrew 2 meter Yagi construction

antenna antenna-construction yagi

Jan 23 '19 at 0:56 Community♦ 1

1

3

votes

2

answers

890

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Linux APRS client

aprs software linux tnc

Nov 17 '18 at 16:23 Jack K6JEB 157

2

votes

1

answer

92

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Properties of Ultraviolet transmissions

optical

Nov 1 '18 at 19:31 Kevin Reid AG6YO♦ 20.9k

5

votes

1

answer

1k

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Is the Kawamall DMTF 6pin microphone usable with the Kenwood TK-805D radio?

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Aug 1 '18 at 16:02 Community♦ 1

1

6

votes

3

answers

3k

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

repeater repeater-coverage

Jul 15 '18 at 0:03 Ghalonix 1

4

17

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3

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6k

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Understanding coax impedance

feed-line coaxial-cable impedance

Jun 24 '18 at 21:48 Kevin Reid AG6YO♦ 20.9k

9

votes

2

answers

2k

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Is Morse code allowed on FM in the USA

united-states legal cw

May 30 '18 at 18:24 SDsolar 1,893

1

vote

1

answer

101

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Frequency Agile Duplexer

duplexer

May 30 '18 at 15:36 Glorfindel 133

2

votes

1

answer

181

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Legality of short “jingles” [duplicate]

united-states legal

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2

5

votes

2

answers

522

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Antenna Efficiency

antenna-theory impedance

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9

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2

answers

2k

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Are satellites Left or Right hand circularly polarized?

antenna satellites circular-polarization

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3

votes

2

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898

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What is Circular Polarization?

satellites circular-polarization

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3

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Advantages of using Digital Code Squelch

rfi tone-squelch

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2

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281

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Measurement Confusion

yagi

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4

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2

answers

143

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Use noise figure and gain to calculate weakest signal radio can receive?

receiver noise snr lna

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134 Questions

How can I add amplitude modulation to this transmitter?

Method to generate PIM

How do Handheld antennas work without ground?

How do I change my registered address with the FCC?

Where to find FM satellite information

Max El vs Max El Azimuth

How do I get a coordinated frequency assigned for my repeater?

Effect of different metals for antenna elements

Is it illegal to key up and not identify?

Transferring old callsign to a club?

Do signals have to be more separated on higher frequencies?

Using Earth as an RF ground

Does amateur radio induce a health risk?

Calculating Doppler Shift for satellites

Field Strength calculations with known antennas

Homebrew 2 meter Yagi construction

Linux APRS client

Properties of Ultraviolet transmissions

Is the Kawamall DMTF 6pin microphone usable with the Kenwood TK-805D radio?

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

Understanding coax impedance

Is Morse code allowed on FM in the USA

Frequency Agile Duplexer

Legality of short “jingles” [duplicate]

Antenna Efficiency

Are satellites Left or Right hand circularly polarized?

What is Circular Polarization?

Advantages of using Digital Code Squelch

Measurement Confusion

Use noise figure and gain to calculate weakest signal radio can receive?