Amateur Radio Beta

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Awarded 756 times.
How did SMA connector size become standard?
Awarded Nov 23 at 19:21
horizontal EFHW antenna attached to gutter
Awarded Nov 22 at 16:50
DMR code plug for Anytone d878uv
Awarded Nov 17 at 18:32
Adding and subtracting dB/dBm/dBi values
Awarded Nov 9 at 17:40
Sunspot numbers? forecast? broadcast on CW/HF
Awarded Nov 3 at 18:34
Can sound generated by interference of cell phone signals contain any useful data?
Awarded Nov 3 at 13:26
Ham radio Internet gateway
Awarded Nov 1 at 14:31
How can a tuner pick up a specific frequency?
Awarded Oct 28 at 1:09
Looking for criticisms on my VNA-like SWR meter I am designing
Awarded Oct 27 at 2:02
Hypothetical question: Repeater with power amplifier
Awarded Oct 26 at 16:40
Ground pass through cinder block — copper pipe, braid, stranded?
Awarded Oct 24 at 18:46
Is this “floating” output single-ended or differential and against GND or VCC?
Awarded Oct 23 at 3:55
What causes the light and dark bands (of background noise) in an HF waterfall display?
Awarded Oct 9 at 14:50
Broadcast signal deviating with time
Awarded Oct 9 at 12:26
60cm 9 kHz 30 MHz Shielded loop antenna behavior as a transmitting antenna
Awarded Oct 2 at 9:07
How to effectively test and interpret the “working range” of a ferrite core with a signal analyzer?
Awarded Oct 1 at 4:56
Are there any antenna that can create disk like lobes?
Awarded Sep 24 at 3:50
Grounding for lightning safety - upper floor (UHF/microwave antennas)
Awarded Sep 22 at 19:40
What does antenna frequency range mean in practice?
Awarded Sep 16 at 16:46
RF PCB Design Difference Between Controlled Impedance Track and Impedance Matching Circuit
Awarded Sep 15 at 8:42
AM Radio Envelope Dectector
Awarded Sep 12 at 1:32
Mutual impedance of two parallel dipole
Awarded Sep 11 at 7:51
Why does Free space have the highest loss compared to other losses like atmospheric loss, feeder loss etc?
Awarded Sep 10 at 18:37
Sanity check: Should I be able to hear this 20m beacon?
Awarded Sep 7 at 18:41
Receiving an Coded Odd Signal at 137.25MHz but don't know what it might be. It can affect my detection on NOAA 19. Need help
Awarded Sep 1 at 18:33
Why does the audio on my FM transceiver cut out every 5.5 seconds?
Awarded Aug 28 at 17:32
How precise should the time be on a QSL card?
Awarded Aug 28 at 1:55
How does a digital demodulator know which level it is reading?
Awarded Aug 27 at 1:05
I just can't get out on my car mounted HF
Awarded Aug 26 at 7:56
Sharing radios with other people
Awarded Aug 22 at 17:50
How to track down and neutralize this apparent mixer creating noisy emissions around my signal?
Awarded Aug 10 at 19:51
Resources and guidance regarding APRS
Awarded Aug 6 at 15:07
How does PTT from one two-way radio prevent input on another?
Awarded Aug 6 at 14:56
Which cable is better for ham radio antenna? RG58, RG59, or RG6? [closed]
Awarded Aug 3 at 1:57
Why does the HamQSL website say the 40m band is fair and the 20m band is poor during the day?
Awarded Jul 23 at 13:11
50Ohm Coax presents 50 Ohms of impedance on which frequency?
Awarded Jul 22 at 6:47
440MHz collinear dipole array - suitable coax?
Awarded Jul 16 at 17:11
Effective area of a phased array
Awarded Jul 15 at 8:33
Baofeng UV-5RE shows wrong TXP icon
Awarded Jul 8 at 18:40
Emergency/battery power rules for Field Day: do they include computer equipment?
Awarded Jul 6 at 21:40
Wiring Cobra 29LTD CB for home use?
Awarded Jul 2 at 1:55
Non-traceable radio emitters
Awarded Jun 27 at 12:08
Practicality of SDR-based TX/RX
Awarded Jun 25 at 17:50
FM radio demodulator IC usage
Awarded Jun 15 at 14:18
Common-mode current and choke placement
Awarded Jun 9 at 4:31
How to calculate power transmitted by monopoles?
Awarded Jun 7 at 17:30
Easy Digi hum with isolated ground
Awarded Jun 4 at 1:57
Importance of Ferrite Size in Coax Choke Balun
Awarded Jun 3 at 11:27
Change of Address and Callsign Zone
Awarded Jun 2 at 18:12
Send on-off radio signal 5,000km
Awarded Jun 2 at 17:05
Any reason not to choose a discone antenna over a Wide/ MultiBand mobile antenna for TX/RX operations
Awarded May 26 at 14:56
Modelling a “fan dipole” or “fan inverted vee” using EZNEC - unexpected result
Awarded May 19 at 21:42
Need antenna for mobile mag-mount LPFM broadcast 88.3 MHz
Awarded May 18 at 4:16
How to connect IC-271 DC power connector to 12 V battery
Awarded May 17 at 4:05
Can I use old TV FM card as SDR?
Awarded May 16 at 19:17
Can these in-band spurs from rpitx be eliminated somehow?
Awarded May 12 at 2:02
Determining one exact antenna length for a whole band (e.g. FM/AM broadcast, Bluetooth and others)
Awarded May 11 at 14:36
Problem of two SAW fitler?
Awarded May 9 at 5:08
Problem with RTL-SDR v3 dongle - unusable PLL
Awarded May 4 at 8:04
Getting Started In Ham Radio
Awarded Apr 29 at 14:49
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