Amateur Radio

Notable Question

 Notable Question
Question with 2,500 views. This badge can be awarded multiple times.
Awarded 643 times.
Why is 9 kHz the lowest frequency for spectrum analyzers?
Awarded Nov 25 at 7:55
How do I set up my radio for Echolink?
Awarded Nov 22 at 19:27
How to trim out background noise GRC
Awarded Nov 21 at 20:10
When to use TSQL vs TONE for a (2m) repeater?
Awarded Nov 20 at 23:20
What did it mean to "align" a radio?
Awarded Nov 19 at 17:32
Any reason not to choose a discone antenna over a Wide/ MultiBand mobile antenna for TX/RX operations
Awarded Nov 19 at 8:57
Why are longer antennas not suitable to pick higher frequencies?
Awarded Nov 17 at 20:27
What is antenna reactance?
Awarded Nov 16 at 23:55
What is a simple kind of amateur radio transceiver I could try to build, as a beginner?
Awarded Nov 16 at 21:08
Signal in the center frequency of my SDR spectrum always
Awarded Nov 15 at 9:50
Cannot connect Quansheng UV-K5(8) with programming cable
Awarded Nov 9 at 17:21
What sort of radiation efficiency can one expect from a folded dipole?
Awarded Nov 4 at 19:41
General Vs Technician Call Sign?
Awarded Oct 27 at 17:36
Effect of night on VHF/UHF propagation
Awarded Oct 25 at 17:05
How do I separate dovetailed PowerPole housings?
Awarded Oct 24 at 6:17
What is the appropriate length of an antenna for a handheld on 2 meters?
Awarded Oct 22 at 22:03
Do modern radios and power supplies require grounding for safety?
Awarded Oct 21 at 21:32
Size of ground plane disk for vertical antennas?
Awarded Oct 20 at 3:19
What is the actual loss in a feed line with high SWR?
Awarded Oct 17 at 19:08
Baofeng UV82-HX charger problem
Awarded Oct 16 at 21:55
doppler LEO satellite
Awarded Oct 8 at 23:34
Calculation of transceiver current draw
Awarded Oct 7 at 18:16
Can Yaesu FT-65 be charged from a 12 VDC automotive accessory outlet?
Awarded Oct 7 at 14:28
What was the origin of the Morse code abbreviations "hi" and "es"?
Awarded Oct 6 at 16:11
Loop antenna layout and radiation?
Awarded Oct 2 at 23:27
Can you use 144mhz and below without a license with a Baofeng
Awarded Sep 30 at 13:25
why do some radios have two fuses in the power leads
Awarded Sep 17 at 7:57
Are "end-fed" antennas really more multi-band than dipoles?
Awarded Sep 14 at 23:08
What ways are there to extend an antenna?
Awarded Sep 10 at 13:26
How to tune an FM transmitter to a specific frequency?
Awarded Sep 9 at 2:43
High 40m noise floor during the evening but quiet in the afternoon
Awarded Sep 7 at 19:10
Baofeng UV-5R ~ 800MHz transmission enabled
Awarded Sep 7 at 10:49
Cleaning relay contacts?
Awarded Sep 6 at 9:32
Is Part 90 certification something an amateur radio operator should look for in a radio meant for amateur use?
Awarded Sep 6 at 1:32
How to combine two 50 Ω antennas such that they appear as one 50 Ω load?
Awarded Sep 4 at 11:20
QRN: How to chase down a solid S9 noise floor on 40m only
Awarded Sep 3 at 20:26
How to attach a magnetic loop antenna to the 50Ω coax of an RTL SDR?
Awarded Aug 26 at 10:16
SWR, overall, is too high
Awarded Aug 16 at 1:50
Cause of harmonic spurs?
Awarded Aug 13 at 3:50
Understanding RG6-75 ohm Cable Impedance
Awarded Aug 12 at 1:26
Running ladder line through window from inside shack to outside dipole antenna - what to watch out for?
Awarded Aug 9 at 14:56
What are the EXACT rules about FCC vanity call sign assignments?
Awarded Aug 3 at 3:34
Are antennas circuits?
Awarded Aug 1 at 4:47
What do radials really do for a vertical antenna?
Awarded Jul 31 at 11:56
Is there any downside to getting a vanity callsign?
Awarded Jul 23 at 0:05
Lightning strikes nearby and coaxial cable
Awarded Jul 18 at 10:56
Baofeng DM-1801 DMR: Language switched to Chinese
Awarded Jul 15 at 6:03
What cable is needed in order to record audio from a Baofeng UV-5x3 on a computer?
Awarded Jul 12 at 4:20
GMRS Call Sign for Technician
Awarded Jul 11 at 20:57
Do chokes at the antenna feedpoint stop the coax from receiving signals as well, or just transmitting?
Awarded Jul 11 at 16:52
Smallest / Thinnest UHF/VHF Mobile Transceiver under $100
Awarded Jul 11 at 3:19
What's the proper way to mount antenna mast to the side of a house?
Awarded Jul 8 at 19:45
Feeding a folded dipole
Awarded Jul 8 at 19:10
How to determine frequency and launch angle given a target skip distance?
Awarded Jul 1 at 19:36
Small band-pass filter for HT?
Awarded Jun 23 at 19:02
How do I set up my radio for an antenna tuner?
Awarded Jun 22 at 14:08
How can you receive ISS broadcast using a Baofeng?
Awarded Jun 20 at 2:09
Recomended coax for 100ft (2m/70cm)
Awarded Jun 13 at 1:27
How do I set the "tone" in my new BaoFeng BF-F8HP?
Awarded Jun 3 at 3:12
Can I use APRS over TCPIP without ham license?
Awarded May 30 at 20:46
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