All Questions
7 questions
2
votes
1
answer
543
views
What is this weird interference/strange radio station?
When I was checking if my antenna is working properly using websdr.org, I came upon this: On 4480 kHz, there are some strange noises. You can also see it in the waterfall here. Is it just some ...
- 805
2
votes
1
answer
477
views
Receiving shortwave frequencies from different countries (e.g. North Korea)
This question may be a little strange, but how can I receive radio waves from a country like North Korea (when I live in Poland)? I am interested in this topic, but I don't have that much knowledge. ...
- 33
6
votes
5
answers
2k
views
How important is the impedance and resonance of a receive antenna?
I'm very new to shortwave radio, as evidenced here:
Can an antenna be too powerful for certain receivers?
I want to build a longwire receive-only antenna for the HF frequencies.
I've been using ...
- 125
2
votes
1
answer
130
views
Signal on various frequencies, about 2.5k bandwidth, sounds like a broken motor turning: What is it?
There are a number of frequencies, where a certain type of signal can be heard. The characteristics is, that every occurrence takes about 2.5k bandwidth, and it is transmitted in a continuous way. ...
- 21
3
votes
1
answer
360
views
Are there many analog (AM) shortwave broadcast stations left?
I'm considering hanging a long wire this spring and trying to get my 13 y.o. son interested in radio as a Scouting activity. Has everything gone to DRM these days, or is it worth dusting off my HQ-...
- 306
3
votes
2
answers
472
views
What are some shortwave radio stations I ought to reliably receive in New Hampshire?
I recently bought a Techsun PL-660 radio and it picks up virtually nothing on SW. I fear I may have a dud.
- 131
2
votes
4
answers
1k
views
What should I look for in a modern portable shortwave radio?
I'm looking to buy a shortwave to listen to either solely at home or perhaps if possible in a vehicle when traveling. What should I look for when looking them over? I recall many years ago the ...
- 129