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5 votes
3 answers
3k views

How to find or derive the maximum safe input power to a receiver?

0 votes
2 answers
142 views

Receiving range of ham radio on SSB with a portable radio receiver

10 votes
3 answers
2k views

Would it be possible for a software-defined FM receiver to demodulate two signals on the same frequency?

2 votes
2 answers
184 views

Why do Baofeng radios have such poor reception reliability?

0 votes
2 answers
305 views

Where can I find a service manual for the TECSUN PL-660 to replace the failed circuit board flex cable myself?

2 votes
2 answers
142 views

What are best practices against spurious frequencies (birdies) in the superheterodyne design?

25 votes
9 answers
59k views

How can I avoid accidentally transmitting with a Baofeng UV-5R?

2 votes
0 answers
57 views

Why the Receiver Sensitivity theoretical value doesn't match its experimental value when using USRP B200mini in GNU Radio?

0 votes
4 answers
137 views

Does an RF amplifier allow us to receive a signal from further away?

2 votes
1 answer
142 views

Performance gain when turning off CTCSS/DCS?

5 votes
4 answers
2k views

Substitute for 455 kHz Ceramic filters in new designs

3 votes
1 answer
208 views

Unknown kit from DK0TV

0 votes
1 answer
66 views

Frequency division multiplexing FM Radio stations

11 votes
1 answer
779 views

What is a "roofing filter"?

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