Amateur Radio Beta

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Awarded 790 times.
If a sealed, non-airtight pipe is used as antenna element, how big of a problem is condensate trapped inside?
Awarded 2 days ago
How is the Hackrf able to achieve 20MHz of bandwidth with an ADC that only allows 22Msps?
Awarded Feb 24 at 2:35
Connecting Mobilinkd TNC2 to Mac for Xastir
Awarded Feb 20 at 19:25
Trying to identify and understand this antenna design - ground independent dual band vertical
Awarded Feb 19 at 21:22
Selecting antenna for rocket telemetry system
Awarded Feb 17 at 12:00
How many cars/devices can connect to a transmission from a 7 Watt FM transmitter
Awarded Feb 17 at 9:02
Using shortwave communication, how difficult is it to transmit messages from the UK to the US?
Awarded Feb 11 at 18:56
Yaesu FT-70DR Earpiece
Awarded Feb 10 at 23:07
How to derive antenna gain from radiation pattern
Awarded Feb 10 at 0:06
What is the appropriate length of an antenna for a handheld on 2 meters?
Awarded Feb 6 at 3:21
Constructing a ground level antenna array to monitor radio frequencies using SDR
Awarded Feb 5 at 16:08
How do you calculate the number of turns for a common mode choke?
Awarded Jan 31 at 19:26
Power, Tower, and connection [closed]
Awarded Jan 31 at 1:02
Can SDR receivers be detected remotely?
Awarded Jan 30 at 22:02
Power surge on hub when using NooElec nesdr mini
Awarded Jan 29 at 0:26
what is the baseband for CATV?
Awarded Jan 27 at 7:11
Difference between antennas for Wi-Fi vs. ham repeaters
Awarded Jan 25 at 23:41
Identical HF Horizonal Dipoles Operating in Close Proximity
Awarded Jan 20 at 16:12
Sweep times for Spectrum Analyzer
Awarded Jan 18 at 15:32
If repeaters share the same call sign are they “Connected”
Awarded Jan 14 at 15:07
What may be damaged when using an internal antenna tuner on SWR above 3?
Awarded Jan 8 at 16:35
Why do PSK modes have “bandwidth”?
Awarded Jan 6 at 20:34
How to use HT microphone with two jacks (Kenwood connector) as a substitue for KX-3 microphone?
Awarded Jan 4 at 14:51
Phase shifts in antenna arrays
Awarded Dec 27 '20 at 20:27
Open source RS41 decoder
Awarded Dec 21 '20 at 17:49
Signal in the center frequency of my SDR spectrum always
Awarded Dec 20 '20 at 0:48
Is a Foundation or Intermediate license from the UK recognised in the US?
Awarded Dec 19 '20 at 21:41
SDR: How are I and Q determined from the incoming signal in quadrature sampling on the receiver side?
Awarded Dec 17 '20 at 15:57
How can you receive ISS broadcast using a Baofeng?
Awarded Dec 17 '20 at 14:25
Is the 1.5kW power limit per antenna? What about antenna arrays?
Awarded Dec 8 '20 at 23:26
Electromagnetic signal from spark gap
Awarded Dec 8 '20 at 18:33
what am i listening to when i listen to morse code?
Awarded Dec 5 '20 at 14:18
Wireless signal strength explanation needed
Awarded Dec 4 '20 at 16:40
Heterodyning complex values in gnuradio
Awarded Dec 2 '20 at 22:56
What length and number of radials should be used for a dual band vertical whip backpack antenna?
Awarded Dec 1 '20 at 14:40
How do I connect a homebrew antenna using RX-8 to a Yaesu FT-70DR (SMA)?
Awarded Nov 28 '20 at 14:20
How did SMA connector size become standard?
Awarded Nov 23 '20 at 19:21
horizontal EFHW antenna attached to gutter
Awarded Nov 22 '20 at 16:50
DMR code plug for Anytone d878uv
Awarded Nov 17 '20 at 18:32
Adding and subtracting dB/dBm/dBi values
Awarded Nov 9 '20 at 17:40
Sunspot numbers? forecast? broadcast on CW/HF
Awarded Nov 3 '20 at 18:34
Can sound generated by interference of cell phone signals contain any useful data?
Awarded Nov 3 '20 at 13:26
Ham radio Internet gateway
Awarded Nov 1 '20 at 14:31
How can a tuner pick up a specific frequency?
Awarded Oct 28 '20 at 1:09
Looking for criticisms on my VNA-like SWR meter I am designing
Awarded Oct 27 '20 at 2:02
Hypothetical question: Repeater with power amplifier
Awarded Oct 26 '20 at 16:40
Ground pass through cinder block — copper pipe, braid, stranded?
Awarded Oct 24 '20 at 18:46
Is this “floating” output single-ended or differential and against GND or VCC?
Awarded Oct 23 '20 at 3:55
What causes the light and dark bands (of background noise) in an HF waterfall display?
Awarded Oct 9 '20 at 14:50
Broadcast signal deviating with time
Awarded Oct 9 '20 at 12:26
60cm 9 kHz 30 MHz Shielded loop antenna behavior as a transmitting antenna
Awarded Oct 2 '20 at 9:07
How to effectively test and interpret the “working range” of a ferrite core with a signal analyzer?
Awarded Oct 1 '20 at 4:56
Are there any antenna that can create disk like lobes?
Awarded Sep 24 '20 at 3:50
Grounding for lightning safety - upper floor (UHF/microwave antennas)
Awarded Sep 22 '20 at 19:40
What does antenna frequency range mean in practice?
Awarded Sep 16 '20 at 16:46
RF PCB Design Difference Between Controlled Impedance Track and Impedance Matching Circuit
Awarded Sep 15 '20 at 8:42
AM Radio Envelope Dectector
Awarded Sep 12 '20 at 1:32
Mutual impedance of two parallel dipole
Awarded Sep 11 '20 at 7:51
Why does Free space have the highest loss compared to other losses like atmospheric loss, feeder loss etc?
Awarded Sep 10 '20 at 18:37
Sanity check: Should I be able to hear this 20m beacon?
Awarded Sep 7 '20 at 18:41
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