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Topics - Antennae

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31
North American Shortwave Pirate / Chamberpot Radio 6925 USB, 0413utc July 28th, 2015
« on: July 28, 2015, 0414 UTC »
I've got some USB music, blues.
0413utc, an ID, Sounded like Chamberpot Radio

I'll have to listen some more to be sure

Edit: Reviewing SDR recording, at 0413utc I hear "Chamberpot Radio and I'm your host, Buster Hymen."

Thanks Buster! If the lightning weren't there, reception would have been pretty good.  Glad to hear you again, and on a Monday night nonetheless. 






32
North American Shortwave Pirate / Radio True North 6955AM, 0404utc, July 10, 2015
« on: July 11, 2015, 0406 UTC »
Yep, RTN is playing vinyl live.
Led Zepp Black Dog
Money song
New Kids on the Block

S6 on my ghetto wire. RTN is fending off the static crashes ok. Thanks for the Friday tunes!

33
General Radio Discussion / Get audio from SDR to SSTV software
« on: July 04, 2015, 1535 UTC »
There are Virtual Audio Cables out there, but you dont need that if you follow these directions from Token:

http://forums.radioreference.com/software-defined-radio/269070-getting-audio-your-sdr-program-same-pc-picture-heavy.html

34
North American Shortwave Pirate / 6874.6 AM Shortwave Ghost May 24, 0446utc
« on: May 24, 2015, 0449 UTC »
0440utc started with Ghost riders in the sky instrumental
later some honky tonk
The IDs are loud. "shortwave ghost at outlook dot com"
Enjoying the music, kind of 70's cowboyish


Some more cowboyish music.
0515 off

35
General Radio Discussion / Your opinions on best transmitted bandwidth
« on: May 23, 2015, 1956 UTC »
I think this info would be useful to operators. 

With my SDR I can demodulate 24kHz maximum.  But I don't use it because usually the pirate stations I receive are weak and a wider filter helps to a point but after that more noise will enter and render it noisy. 

Listening to an SDR recording of KCPR, a pirate on the same side of the Mississippi as me, I was able to tell that I could hear more of the music at 24kHz wide.  The conditions were noisy and at 24kHz the noise was annoying.  So I settled on 16kHz for the best reception quality.

Most SW broadcast stations use 10kHz wide. But a SW Chinese broadcaster has a wider signal that really lets in more sound if I widen my filter to take advantage of it.   

I recently learned that a transmitter's power gets used up on whatever music its transmitting. So if you only give it 10kHz, it will focus its power and strengthen that range of bandwidth. And hopefully be more legible for the listeners  ::)

-For the pirate listening mavens, is there a sweet spot that transmitters could shoot for? 
-Do you agree it depends on the background noise conditions at the time of broadcast?


36
North American Shortwave Pirate / The Crystal Ship 6874.7AM, 0417utc, May 15, 2015
« on: May 16, 2015, 0418 UTC »
0415ish  The Crystal Ship ID
Strong here on Westmoast Coast. Cool song after the ID.
2 tarzan calls and then the ID.

Good music, peppered with some cool skits. There was one about a woman and a wolf or werewolf that was eerie/funny.
0510utc off 

37
HF Mystery Signals / Interesting sound, it gets scaled out to cover more frequency
« on: May 03, 2015, 1621 UTC »
 6999kHz   
0416utc
About 2 sec. long
Receiver mode: I don't know it looks asymetrical
California Coast
There I was, minding my own business when this thing blipped by.   It is about 10Hz wide, then it scales out to 15Hz wide.  Notice the line that doesnt scale is not in the center of the transmission.  I used this as the reference for what frequency it was on.


38
North American Shortwave Pirate / UNID 6950AM, 0225utc, Apr. 25, 2015
« on: April 25, 2015, 0310 UTC »
S7 level here, some fading.
About 5 songs:
Pretty sure one was a David Bowie song.
Frito Bandito :D song, sounded like an old ad. :D
0240utc off

Sorry, I'm not good at IDing song names.
Thanks for the entertainment.

39
North American Shortwave Pirate / KCPR 6950 AM 0226 UTC Apr. 20, 2015
« on: April 20, 2015, 0258 UTC »
KCPR
0137 a song about Riding in my Indian Car, pretty cool/funny, rap
0256
Lots of various tunes

Coming in good,
SINPO
45544

A devil-music song: beserker from the clerks soundtrack

0314 We Love Pirate Stations, "Please dont take them away!"

0343 Riding in my Indian car song again :)
off

40
North American Shortwave Pirate / XLR8 6950 USB, 0553utc, March 21, 2015
« on: March 22, 2015, 0556 UTC »
Lots of music. Didn't catch any IDs. I'm very gracious for the show. Its the best reception I've had in a while. Its only an S2 or S3 but the noise is low. Some electronic.
Thanks stranger

0615 Siren and "XLR8"!!!!!

41
North American Shortwave Pirate / KCPR 6925AM 0235utc Mar 12, 2015
« on: March 12, 2015, 0237 UTC »
S8 and Great!
First song about pirates that play the music the people want
Little fading and more reggae  
Walking the Streets of Bakersfield (my brother is there now)
SSTV: KCPR fat kid with capguns
weaker carrier with no MX for a while
Carrier off 0357

42
HF Mystery Signals / Dual Side Band data pips?
« on: March 11, 2015, 2202 UTC »
1. 9085kHz  (between twin bursts)
2. 3/10/15 20:05utc
3. 5 sec intervals
4.XCVR mode: USB/LSB, DSB?
5.SW Coast USA
6. Mid-day, I saw some pips on the waterfall.  These are short bursts of data.  Sounds like a short burst of consecutive beeps of differing tones.  There are twin bursts that are asymmetrical.  Assuming the mode is DSB, every once in a while the USB burst will be one solid tone while the LSB has none. LSB sounds like lower tones and USB sounds like higher tones.   

Here's a picture:

43
General Radio Discussion / Need help with noise from computer monitor.
« on: January 31, 2015, 1857 UTC »
I got a new SDR and my LCD computer monitor really creates some interference. When I turn off the monitor, the interference goes away. Monitor is connected via serial type cable.

My SDR has one cable, its a USB that goes to the computer.  I obtained 4 toroid ferrites, stacked them, and wrapped the USB cable about 8 times around them. This made the noise go down a lot.  And it refined the noise.

The noise appears in 60hZ increments.

I use an 8-plug surge protector on my computer.  If I plug the monitor and computer directly into the wall socket the noise is still there.

Is this a ground loop?  How can I alleviate this?  Thanks.








 





44
Shortwave Broadcast / UNID 9440AM, 0535utc, Jan. 28, 2015
« on: January 28, 2015, 0538 UTC »
Fairly good reception here.  S7 on my meter.  Woman announcer and long winded man (that sounds like he's been recorded from a telephone conversation).  Sounds like African language. 

It doesn't show up in my list or on Short-wave.info website.  Even if the station ID'd itself, I'm not sure I would realize it. Any ideas?

45
Huh? / SDR waterfall visions
« on: January 22, 2015, 1739 UTC »
Watching my new SDR's waterfall is so neat.

After I listen/watch, when I close my eyes I see waterfalls of AM transmissions. They're pretty well defined.  And then in the morning before any radio, I've seen perfectly vertical lines a couple times when I close my eyes.  I think I need to arrange the signals horizontally so I can give my eyes/brain a thorough work out.

So yesterday, I was outside and my eyes were drawn to a jet's contrail with the notion it was a signal on a waterfall! 

I even used a new phrase the other day, "I'm going to go watch my radio." 

Does this happen to anybody else?

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