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Top Questions

1 vote
1 answer
90 views

Is it legal to practice using a one-time pad?

3 votes
3 answers
150 views

Advice on constructing half wave dipole with reduced velocity factor for site that is not quite big enough?

14 votes
4 answers
5k views

Is a vertical noisier than a dipole, and if so, why?

-1 votes
0 answers
33 views

GNU Radio USRP B210 overflow when writing to fast SSD disk [closed]

4 votes
2 answers
118 views

Coax in the wall, or around the house?

3 votes
4 answers
791 views

POTA and SOTA Spotting networks?

2 votes
0 answers
33 views

How can I key low voltage and still keep a tube VFO running constantly?

6 votes
0 answers
2k views

Simple AM receiver with gnuradio / RTL-SDR

1 vote
3 answers
385 views

How can I check if my CB radio is AM or AM/SSB?

3 votes
2 answers
44k views

Can a Baofeng UV-5R+ be used on FRS, GMRS, and MURS?

-1 votes
0 answers
44 views

What is the maximum distance supported by any USRP device that povides a data-rate of 2Mbps at the receiver? [closed]

0 votes
1 answer
58 views

Given that transmit "chirp" is mainly thermal related, what parts would need to be temperature regulated to limit chirp?

5 votes
8 answers
12k views

BF-F8HP: "Radio did not respond" when trying to use CHIRP

2 votes
1 answer
1k views

Cannot connect Quansheng UV-K5(8) with programming cable

9 votes
1 answer
418 views

What privileges do I gain with each addition step of the license (in the UK?)

2 votes
1 answer
186 views

Portable indoor VHF antenna for SDR

2 votes
1 answer
180 views

IC7300 soundcard issues

2 votes
2 answers
151 views

Why does my 7 MHz antenna trap have an SWR of 8?

2 votes
1 answer
67 views

Diagnosing antenna problem with RigExpert AA-600

4 votes
2 answers
122 views

Antenna tuning confusion - help!

1 vote
1 answer
209 views

How to use GNU Radio to demonstrate FM demodulation without baseband signals

1 vote
0 answers
34 views

Icom 705 USB link to Raspberry Pi4 running OpenCPN

3 votes
3 answers
104 views

Question about Isolating Transformer NZART exam question

1 vote
2 answers
44 views

What are the considerations re installing an ID-4100 in a DIN slot in the dash?

3 votes
2 answers
85 views

Rfi in truck with HF transceiver when running

2 votes
0 answers
39 views

Receiving a lot of noise with RTL-SDR and SDR# for GOMX-1

5 votes
4 answers
423 views

QSL cards and distance minimums

5 votes
2 answers
574 views

How Are US Call Sign Location ID's Assigned?

5 votes
4 answers
948 views

Which is better in my situation: Balanced dipole, or as much wire as possible in the air?

1 vote
1 answer
426 views

Can't connect to my Yaesu FT5D on Windows, what could be the problem?

3 votes
2 answers
70 views

Excessive frequency deviation for DMR handsets?

4 votes
1 answer
197 views

did static fry my uv5r?

6 votes
3 answers
193 views

Is it ethical to accept sponsorship for QSL cards?

3 votes
1 answer
111 views

Repeater Amplifiers DMR vs Analog

1 vote
1 answer
127 views

Can an antenna be affected if mounted to a bull bar?

6 votes
1 answer
194 views

How does a Large Loop Antenna work physically?

3 votes
2 answers
52 views

WTB: dual band HT that can adapt to assistive hearing devices

1 vote
1 answer
118 views

Need some help to design a DIY MW Radio receiver

1 vote
1 answer
368 views

AX25 + Reed Solomon : Bit stuffing errors

4 votes
4 answers
13k views

How can I decode an AFSK 1200 baud audio clip? (ISS)

5 votes
1 answer
433 views

Where is the Multi-Drop XKISS / BPQKISS spec?

1 vote
2 answers
1k views

GFSK Demodulationsoftware

4 votes
2 answers
120 views

How to design a Local Oscillator for a radio receiver?

1 vote
1 answer
54 views

Signal Patterns on Waterfall are not Same for Two RTL-SDRs

1 vote
2 answers
54 views

Cannot transmit with direwolf ("Audio output start error")

1 vote
1 answer
66 views

Icom RS-MS3W setup

3 votes
1 answer
82 views

Linking DStar repeaters using Icom syntax

3 votes
2 answers
252 views

Does the Yaesu FT-897D have a BIOS/firmware in FLASH memory that could get corrupted 15 years in storage? Is there a re-install procedure?


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