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Top Questions

2 votes
3 answers
2k views

Are Baofeng radios legal in the US?

0 votes
0 answers
12 views

Lightweight Coax Fiberglass Mast

2 votes
1 answer
23 views

Resonant 80m End Fed Halfwave Antenna With Counterpoise - Questions

0 votes
2 answers
86 views

What is this pulsating signal?

-2 votes
0 answers
17 views

Can't submit cabrillo log to YUDX: Wrong date in log

0 votes
0 answers
40 views

Use of filters for weak SSB when there is no QRM

0 votes
1 answer
65 views

Converting a 470-694Mhz TV antenna for 433Mhz reception

1 vote
3 answers
125 views

Receiving -80 dBm on HF

3 votes
1 answer
110 views

Max voltage on antenna pin of Si4732?

1 vote
4 answers
95 views

What core material would offer the highest sensitivity in the design of an ELF/VLF handheld rod antenna?

-1 votes
1 answer
90 views

Why can I connect simplex at 146.52 but not at 145.200 and 147.000? [closed]

3 votes
2 answers
128 views

Shifting Frequency of a VHF Crystal?

0 votes
3 answers
96 views

generic antenna tuner term: impedance matching vs real tuner

1 vote
1 answer
44 views

Printing the Signal Power on the terminal from the USRP source block on GNURadio

4 votes
1 answer
87 views

How to properly simulate a crystal filter being pulled?

3 votes
1 answer
73 views

Help implementing FT8 crc check in Rust

-2 votes
0 answers
91 views

Can I find audio recordings of a past radio operator?

1 vote
1 answer
124 views

Sometimes my Baofeng UV-5R's display turns red spontaneously

0 votes
1 answer
41 views

Help implementing a custom signal source in GNURadio for FMCW

0 votes
2 answers
61 views

Minmum spacing between two receive-only omidirectional antennas

3 votes
1 answer
51 views

Why does RFI demodulate to a buzz sound?

0 votes
1 answer
89 views

RF Coax Termination Question

0 votes
0 answers
27 views

I want to hook up a couple active speakers to my icom 9100 so I have a good range and good volume . the output on the receiver is 8ohms

0 votes
1 answer
77 views

How To Convert Morse Key Input To Audio

0 votes
1 answer
67 views

Optimal antenna configuration for edge-on power transfer

0 votes
2 answers
178 views

Suggestion for the RF cable

1 vote
1 answer
207 views

Icom RS-MS3W setup

3 votes
1 answer
153 views

Linking DStar repeaters using Icom syntax

1 vote
2 answers
188 views

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

1 vote
2 answers
223 views

Motorola XT460 CPS cable pinout

1 vote
2 answers
137 views

Help setting up my Baofeng UV-5R radio for scanning [closed]

3 votes
1 answer
2k views

How to send DMR SMS using MMDVM modem or hackrf?

3 votes
5 answers
4k views

Repairing a Tecsun PL-660


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