User Glenn W9IQ

3 votes

What were the reasons why ATIS identification was introduced?

vhf history

answered Dec 20, 2017 at 18:07

2 votes

Conventional or electron current

electronics theory

answered Dec 20, 2017 at 7:33

2 votes

How can I determine if out of band interference is affecting my AIS reception?

software-defined-radio rtl-sdr filter noise

answered Dec 5, 2017 at 8:16

7 votes

Is Part 90 certification something an amateur radio operator should look for in a radio meant for amateur use?

united-states legal mobile

answered Dec 3, 2017 at 16:35

5 votes

Can a common-mode current exist on the inside of a coax shield?

coaxial-cable theory transmission-line

answered Dec 3, 2017 at 11:47

3 votes

Using one of two antenna tuners connected in series

antenna-system antenna-tuner

answered Nov 25, 2017 at 12:01

2 votes

Does adding just an antenna adapter to a 3G modem add to it reception power?

antenna

answered Nov 19, 2017 at 13:02

4 votes

Do end-fed dipole antennas need choke baluns?

balun end-fed-antenna choke-balun

answered Nov 17, 2017 at 13:22

2 votes

Accepted

Seeming conflict in the definitions of dynamic range

receiver measurement superheterodyne dynamic-range

answered Nov 16, 2017 at 20:39

5 votes

Accepted

Can I estimate range of a low power transmission based on power (in mW)?

range

answered Nov 14, 2017 at 9:00

6 votes

proximity of rain gutter to dipole antenna

antenna dipole

answered Nov 5, 2017 at 11:57

1 vote

Is there a special term for amateur transceiver speakers or anything that makes them different from any other kind of speaker?

mobile audio speaker

answered Nov 1, 2017 at 15:05

8 votes

Aluminum vs copper antenna element lengths

antenna antenna-theory antenna-construction

answered Oct 27, 2017 at 5:34

1 vote

Dual Band Antenna Matching

antenna-theory wire-antenna impedance-matching

answered Oct 26, 2017 at 20:56

1 vote

calculating power from directional coupler

rf-power directional-coupler

answered Oct 26, 2017 at 20:12

2 votes

Accepted

How to adapt commercial VHF yagi for 2 meter amateur use?

antenna antenna-construction 2m-band yagi

answered Oct 26, 2017 at 6:52

6 votes

Accepted

Key CW on zero crossings - zero bandwidth?

cw theory bandwidth

answered Oct 25, 2017 at 8:22

0 votes

Could 8' Marine whip antennas operate on much higher frequencies?

antenna antenna-theory

answered Oct 24, 2017 at 12:53

3 votes

Accepted

How to build a balun transformer for 2m RX with low insertion loss

balun toroid transformer

answered Oct 23, 2017 at 10:59

5 votes

Antenna Q vs pattern shape

antenna frequency radiation-pattern

answered Oct 20, 2017 at 12:12

4 votes

What happened to AMSAT-Phase 3E?

satellites

answered Oct 13, 2017 at 22:32

6 votes

Does a paint-can dummy load have high voltage on the metal can? Would an insulated container be better?

diy dummy-load

answered Oct 10, 2017 at 16:23

5 votes

Cordless phone consistently experiencing RFI

rfi

answered Oct 7, 2017 at 13:07

1 vote

Feeding a dual-band UHF and VHF Yagi antenna

antenna antenna-theory vhf yagi

answered Oct 7, 2017 at 12:24

3 votes

Bluetooth headset for transceiver?

transceiver equipment-design

answered Oct 7, 2017 at 11:46

3 votes

Total cancellation in corporate feed network for patch antenna

antenna antenna-theory feed-line phased-array gnss

answered Oct 6, 2017 at 19:14

4 votes

Accepted

Is 20m noisy, or do I have a lot of local interference?

hf rfi noise

answered Oct 6, 2017 at 18:57

1 vote

Why is VHF better than UHF in this situation?

propagation vhf uhf

answered Oct 4, 2017 at 20:03

5 votes

Would the antenna described work?

antenna antenna-theory satellites circular-polarization

answered Oct 4, 2017 at 19:25

4 votes

Baud rate/frequency/bandwith/characters per second

filter noise

answered Oct 4, 2017 at 14:55

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393 Answers

What were the reasons why ATIS identification was introduced?

Conventional or electron current

How can I determine if out of band interference is affecting my AIS reception?

Is Part 90 certification something an amateur radio operator should look for in a radio meant for amateur use?

Can a common-mode current exist on the inside of a coax shield?

Using one of two antenna tuners connected in series

Does adding just an antenna adapter to a 3G modem add to it reception power?

Do end-fed dipole antennas need choke baluns?

Seeming conflict in the definitions of dynamic range

Can I estimate range of a low power transmission based on power (in mW)?

proximity of rain gutter to dipole antenna

Is there a special term for amateur transceiver speakers or anything that makes them different from any other kind of speaker?

Aluminum vs copper antenna element lengths

Dual Band Antenna Matching

calculating power from directional coupler

How to adapt commercial VHF yagi for 2 meter amateur use?

Key CW on zero crossings - zero bandwidth?

Could 8' Marine whip antennas operate on much higher frequencies?

How to build a balun transformer for 2m RX with low insertion loss

Antenna Q vs pattern shape

What happened to AMSAT-Phase 3E?

Does a paint-can dummy load have high voltage on the metal can? Would an insulated container be better?

Cordless phone consistently experiencing RFI

Feeding a dual-band UHF and VHF Yagi antenna

Bluetooth headset for transceiver?

Total cancellation in corporate feed network for patch antenna

Is 20m noisy, or do I have a lot of local interference?

Why is VHF better than UHF in this situation?

Would the antenna described work?

Baud rate/frequency/bandwith/characters per second