User Glenn W9IQ

14 votes

Why do we have to hand wind toroids?

diy

answered Jun 28, 2018 at 11:15

12 votes

Accepted

What is an antenna tuner? Why bother with resonant antennas in the first place?

antenna-system antenna-tuner

answered Aug 11, 2017 at 17:08

5 votes

Accepted

Need a ferrite suppression material for choking 15 kHz to 60 kHz

rfi ferrite vlf

answered Mar 5, 2018 at 19:49

8 votes

Efficiency of short dipole receiving antenna

antenna receiver dipole

answered Sep 9, 2018 at 18:22

12 votes

Accepted

Why can't I hear myself from a second radio when bouncing off a repeater?

repeater

answered Apr 27, 2018 at 19:35

1 vote

Digital networks -- operator at control point, or automatic relay?

united-states legal digital-modes

answered Mar 12, 2019 at 22:52

6 votes

If I receive an SOS signal, what is the proper response?

cw procedure emergency

answered Mar 11, 2019 at 14:32

7 votes

Accepted

Sending a downloaded file on digital: third party communication?

united-states legal digital-modes

answered Mar 12, 2019 at 12:47

9 votes

Accepted

Ham operators often tell me that comparing gain to an isotropic radiator isn't much use because it's only a theoretical antenna, is this true?

antenna-theory radiation-pattern

answered Mar 12, 2019 at 11:23

6 votes

Accepted

Is compression "encryption" under FCC regs?

united-states legal digital-modes encryption

answered Mar 11, 2019 at 21:35

7 votes

Accepted

Coax or bifilar windings for a choke?

impedance balun choke-balun

answered Mar 11, 2019 at 15:30

3 votes

Accepted

Signing of messages transmitted over ham radio

united-states legal encryption

answered Mar 10, 2019 at 9:46

5 votes

What is the equation for the arm lengths of a half wavelength dipole antenna?

antenna antenna-theory dipole

answered Mar 10, 2019 at 11:11

3 votes

Doublet with ladder line vs coax w.r.t. noise

dipole feed-line noise

answered Mar 9, 2019 at 17:24

3 votes

Unidentified signals on FT8 frequencies

digital-modes signal-identification ft8

answered Mar 8, 2019 at 17:59

6 votes

Accepted

What are Radio-location Services in the 1.9-2.0 MHz range?

united-states hf frequency 160m-band

answered Mar 7, 2019 at 18:11

6 votes

Accepted

Estimating the efficiency of a shortened (loaded) antenna

antenna-theory dipole efficiency

answered Mar 7, 2019 at 14:52

4 votes

What equipment and software do I need to read raw civilian GPS signals on my Mac?

receiver gnss macos

answered Mar 7, 2019 at 13:55

5 votes

Accepted

Cabling question between two devices

coaxial-cable measurement

answered Feb 12, 2019 at 17:30

9 votes

Accepted

From where do repeaters get their power supply?

repeater power-supply

answered Mar 6, 2019 at 11:12

3 votes

Raspberry Pi with TNC-Pi - How to Connect to BBS

packet

answered Mar 5, 2019 at 23:23

1 vote

How can a vertical Yagi for 10 m be mounted on on a vertical metal mast and be made to work properly?

antenna-theory antenna-construction yagi

answered Mar 2, 2019 at 16:58

3 votes

Suitable acoustic foam rubber for headphones?

equipment audio military-surplus

answered Mar 3, 2019 at 14:49

4 votes

Accepted

Should I add call signs with /R suffix to the logbook?

repeater ft8 wsjt-x

answered Mar 3, 2019 at 14:17

3 votes

Accepted

Proper magnetic mount placement on roof

antenna-construction mobile vertical-antenna 2m-band 70cm-band

answered Mar 1, 2019 at 17:40

1 vote

RTL-SDR: command or script to obtain power and deviation of an FM radio station

software-defined-radio rtl-sdr

answered Feb 28, 2019 at 20:58

5 votes

Accepted

Toroid Coupling Issue in Common-base Amplifier

equipment-design amplifier oscillator transformer

answered Feb 25, 2019 at 17:05

2 votes

What EXACTLY does front to back ratio mean?

antenna-theory

answered Feb 25, 2019 at 10:42

4 votes

Baofeng DM-1801 DMR: Language switched to Chinese

baofeng

answered Feb 24, 2019 at 2:21

3 votes

Why do some of the amateur radio license names imply something different than what it actually is?

united-states license

answered Feb 23, 2019 at 2:07

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393 Answers

Why do we have to hand wind toroids?

What is an antenna tuner? Why bother with resonant antennas in the first place?

Need a ferrite suppression material for choking 15 kHz to 60 kHz

Efficiency of short dipole receiving antenna

Why can't I hear myself from a second radio when bouncing off a repeater?

Digital networks -- operator at control point, or automatic relay?

If I receive an SOS signal, what is the proper response?

Sending a downloaded file on digital: third party communication?

Ham operators often tell me that comparing gain to an isotropic radiator isn't much use because it's only a theoretical antenna, is this true?

Is compression "encryption" under FCC regs?

Coax or bifilar windings for a choke?

Signing of messages transmitted over ham radio

What is the equation for the arm lengths of a half wavelength dipole antenna?

Doublet with ladder line vs coax w.r.t. noise

Unidentified signals on FT8 frequencies

What are Radio-location Services in the 1.9-2.0 MHz range?

Estimating the efficiency of a shortened (loaded) antenna

What equipment and software do I need to read raw civilian GPS signals on my Mac?

Cabling question between two devices

From where do repeaters get their power supply?

Raspberry Pi with TNC-Pi - How to Connect to BBS

How can a vertical Yagi for 10 m be mounted on on a vertical metal mast and be made to work properly?

Suitable acoustic foam rubber for headphones?

Should I add call signs with /R suffix to the logbook?

Proper magnetic mount placement on roof

RTL-SDR: command or script to obtain power and deviation of an FM radio station

Toroid Coupling Issue in Common-base Amplifier

What EXACTLY does front to back ratio mean?

Baofeng DM-1801 DMR: Language switched to Chinese

Why do some of the amateur radio license names imply something different than what it actually is?