User natevw - AF7TB - Amateur Radio Stack Exchange

15 votes

Why are radio frequency ranges aligned on multiples of 3?

answered Sep 1, 2018 at 6:29

14 votes

Accepted

FCC tracking of unlicensed FRS/GMRS transmissions

answered Aug 1, 2016 at 23:14

13 votes

Accepted

Why does ARRL license examination procedure preclude students from discovering what questions they got wrong on licensing tests

answered Nov 29, 2018 at 20:08

13 votes

Is there any legal recourse against unauthorized usage of a private repeater in the USA?

answered Nov 15, 2022 at 1:55

12 votes

What "test transmissions" are allowed above 51MHz?

answered Dec 21, 2016 at 17:13

11 votes

Would a ham license allow me to use an uncertified radio on other (non-ham) bands I have permission to use?

answered May 27, 2019 at 20:33

9 votes

What fraction of 2x2 USA call signs are vanity calls?

answered Sep 4, 2019 at 22:38

9 votes

Is ham the only non-criminal/civil broadcasting a person can do that doesn't own a shortwave radio station?

answered Sep 6, 2018 at 22:30

8 votes

Accepted

dBm signal minus dB

answered Dec 21, 2018 at 21:15

8 votes

What's the difference between "maximum usable" and "critical" frequencies?

answered Jul 26, 2016 at 5:21

8 votes

Can a ham license be used for a job?

answered Apr 30, 2020 at 18:40

7 votes

Accepted

Do volunteer exam coordinators provide accommodations for applicants with visual impairments?

answered Jan 7, 2019 at 23:41

7 votes

Accepted

RX antenna and RTL SDR with upconverter ..How to hear something?

answered Sep 14, 2017 at 1:04

7 votes

Accepted

What is the attraction of vertical antennas for HF?

answered Jun 16, 2016 at 7:10

6 votes

Can I talk 2 Meter VHF across the United States

answered Dec 11, 2017 at 18:35

6 votes

What are these antennas used for?

answered Mar 8, 2019 at 22:18

6 votes

Accepted

help identifying a vacuum tube

answered May 31, 2019 at 19:30

6 votes

Accepted

What frequency ranges are most common for Amateur radio astronomy and why are most parabolic antennas tuned to such high frequencies?

answered Oct 10, 2022 at 23:19

5 votes

Are there any modes that use pseudo-random noise codes to "amplify" signals?

answered Oct 27, 2022 at 18:05

5 votes

New operator struggling to make a contact

answered Jul 11, 2022 at 21:49

5 votes

Accepted

How were 1920s hams able to measure megahertz frequency?

answered Jun 19, 2018 at 0:17

4 votes

What parts / procedure do I need to build a UHF receiver that can connect to a standard pair of headphones

answered Nov 14, 2017 at 17:53

4 votes

Accepted

How does VHF/UHF propagate beyond the expected (radio) horizon?

answered Mar 7, 2017 at 5:20

4 votes

Accepted

Can you jam jam?

answered Aug 30, 2016 at 23:35

4 votes

Accepted

SDR with the Raspberry Pi

answered Oct 25, 2016 at 22:31

4 votes

RFID extension cable

answered Sep 15, 2022 at 19:39

4 votes

What is a "feed-through load" and how does it work?

answered Dec 3, 2021 at 22:44

4 votes

Accepted

What to do when accidental emission can't be given a call sign ID?

answered Apr 10, 2019 at 17:53

4 votes

Will my neighbor's amateur RF antennas effect my own utilities?

answered Jan 8, 2020 at 17:45

4 votes

Accepted

Dipole antenna using current on outside of coax as intentional radiator?

answered Jul 17, 2023 at 18:10

Stack Exchange Network

87 Answers

Why are radio frequency ranges aligned on multiples of 3?

FCC tracking of unlicensed FRS/GMRS transmissions

Why does ARRL license examination procedure preclude students from discovering what questions they got wrong on licensing tests

Is there any legal recourse against unauthorized usage of a private repeater in the USA?

What "test transmissions" are allowed above 51MHz?

Would a ham license allow me to use an uncertified radio on other (non-ham) bands I have permission to use?

What fraction of 2x2 USA call signs are vanity calls?

Is ham the only non-criminal/civil broadcasting a person can do that doesn't own a shortwave radio station?

dBm signal minus dB

What's the difference between "maximum usable" and "critical" frequencies?

Can a ham license be used for a job?

Do volunteer exam coordinators provide accommodations for applicants with visual impairments?

RX antenna and RTL SDR with upconverter ..How to hear something?

What is the attraction of vertical antennas for HF?

Can I talk 2 Meter VHF across the United States

What are these antennas used for?

help identifying a vacuum tube

What frequency ranges are most common for Amateur radio astronomy and why are most parabolic antennas tuned to such high frequencies?

Are there any modes that use pseudo-random noise codes to "amplify" signals?

New operator struggling to make a contact

How were 1920s hams able to measure megahertz frequency?

What parts / procedure do I need to build a UHF receiver that can connect to a standard pair of headphones

How does VHF/UHF propagate beyond the expected (radio) horizon?

Can you jam jam?

SDR with the Raspberry Pi

RFID extension cable

What is a "feed-through load" and how does it work?

What to do when accidental emission can't be given a call sign ID?

Will my neighbor's amateur RF antennas effect my own utilities?

Dipole antenna using current on outside of coax as intentional radiator?