1141
North American Shortwave Pirate / Re: Voice of Pancho Villa 4035 USB 0500 UTC 04 MAR 2018
« on: March 04, 2018, 0512 UTC »
S5 in California. This sounds like International Free Radio Service to me, based upon previous log.
Shortwave Pirate Radio In North America And Around The World, And Other Signals That Go Bump In The Night
We seek to understand and document all radio transmissions, legal and otherwise, as part of the radio listening hobby. We do not encourage any radio operations contrary to regulations.
Always consult with the appropriate authorities if you have questions concerning what is permissible in your locale.
I've used chain-linked fence as part of a ground radial system at HF. If you got it, might as well use it.
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1142
North American Shortwave Pirate / Re: X-FM 4070 AM 0302 UTC 04 MAR 2018
« on: March 04, 2018, 0404 UTC »
S7 with some RFI in Nebraska, S9 on SDRs farther west. Very nice audio.
0431 - Live time checks and listener mentions. Hi!
0436 - Stabbing Westward song.
0452 - Queens of The Stone Age
0457 - TX off
0431 - Live time checks and listener mentions. Hi!
0436 - Stabbing Westward song.
0452 - Queens of The Stone Age
0457 - TX off
1143
North American Shortwave Pirate / Re: UNID 6935 LSB 0313 UTC 04 Mar 2018
« on: March 04, 2018, 0358 UTC »
S5 into northern Florida at 0357 UTC. Switched to Nebraska later.
0420 - Skit about Trump (with a character named "Poncho"), with some folks scheming to get over Trump's Wall. A cameo appearance from "Glen Hauser".
0426 - ID "This is The International Free Radio Service" then seemingly off.
0420 - Skit about Trump (with a character named "Poncho"), with some folks scheming to get over Trump's Wall. A cameo appearance from "Glen Hauser".
0426 - ID "This is The International Free Radio Service" then seemingly off.
1144
General Radio Discussion / Re: IHeartMedia is said to plan bankruptcy as soon as this weekend
« on: March 02, 2018, 1858 UTC »
This was telegraphed* a long time ago.
*Appropriate since this is a forum on radio
*Appropriate since this is a forum on radio
1145
North American Shortwave Pirate / Re: UNID 6925 AM 0145 UTC 02 Mar 2018
« on: March 02, 2018, 1841 UTC »If you're listening on AM you would not notice a "wobbly" carrier.
- If there is enough frequency movement (for example, strong FMing) they would notice it as a very distinct and recognizable form of distortion.
- If they are using an SDR (which has nothing to do with reception modulation mode), they could observe it visually.
1146
Equipment / Re: oh masters of the RF circuit..have pity on my dual notch filter
« on: March 01, 2018, 0434 UTC »
Everything in RF needs tweaking. It's rare for something new to work flawlessly the first time you turn it on without optimization. This isn't house wiring where it either works or it doesn't.
Understand that there will always be a certain amount of (unavoidable) parasitic capacitance, inductance and resistance that can't be predicted easily. Where I am going with this is that they may be working, just not at the frequencies you intended. So when you follow a pre-printed formula for capacitor and inductor values for your ~800 KHz filters, you may not actually get what you had intended due to the formulas not taking into consideration parasitics and that may very well explain what you are experiencing. The circuit in a tin box has some long leads on (for example) the capacitor. Shorten those up. Those leads are represent parasitics. I see room for optimization in that box. The frequency of resonance may change when you put a cover on that box.
Since you more than likely do not have a vector network analyzer at your ready disposal
, I suggest that one place to start to determine if they are working at all is by tuning around the whole MW band and see if you can notice a drop in the noise floor or drop in any other signals at any other frequency. If you have an SDR, use the display in wide band mode to try to gauge this.
For something like this, it's probably better to build with variable components, if possible, just because it will need tweaking.
Understand that there will always be a certain amount of (unavoidable) parasitic capacitance, inductance and resistance that can't be predicted easily. Where I am going with this is that they may be working, just not at the frequencies you intended. So when you follow a pre-printed formula for capacitor and inductor values for your ~800 KHz filters, you may not actually get what you had intended due to the formulas not taking into consideration parasitics and that may very well explain what you are experiencing. The circuit in a tin box has some long leads on (for example) the capacitor. Shorten those up. Those leads are represent parasitics. I see room for optimization in that box. The frequency of resonance may change when you put a cover on that box.
Since you more than likely do not have a vector network analyzer at your ready disposal
, I suggest that one place to start to determine if they are working at all is by tuning around the whole MW band and see if you can notice a drop in the noise floor or drop in any other signals at any other frequency. If you have an SDR, use the display in wide band mode to try to gauge this.For something like this, it's probably better to build with variable components, if possible, just because it will need tweaking.
1147
FM Free Radio / Re: "Way High Radio"-Colorado Pirate Bust
« on: March 01, 2018, 0412 UTC »
Thanks for that.
1148
Latin American Pirate / Re: Latins 21 Feb 2018
« on: February 23, 2018, 0310 UTC »
et tu, Brute?
e pluribus unum?
boni pastoris est tondere pecus non deglubere?
Ohhhh, you don't mean THAT kind of latins.
quidquid Latine dictum sit altum videtur
e pluribus unum?
boni pastoris est tondere pecus non deglubere?
Ohhhh, you don't mean THAT kind of latins.
quidquid Latine dictum sit altum videtur
1149
Latin American Pirate / Lupo Radio 6973 KHz AM 2311 UTC 17 February 2018
« on: February 17, 2018, 2312 UTC »
Hearing them with an average signal on an SDR in Brazil tonight. SIO 222.
1150
North American Shortwave Pirate / Re: UNID 6930U 2251 UTC 17 February 2018
« on: February 17, 2018, 2302 UTC »
SIO 323 in Virginia.
2322 SSTV, then off?
2322 SSTV, then off?
1151
North American Shortwave Pirate / Re: WILD 100 6965 USB 2140 UTC 17 Feb 2018
« on: February 17, 2018, 2250 UTC »
Good signal into South Florida at 2249. SIO 414
Still on but signal weaker at 2327.
Still on but signal weaker at 2327.
1152
General Radio Discussion / Re: TCS co-founder 'The Radical' lost to the rough seas of cancer
« on: February 16, 2018, 0325 UTC »
Sorry to read. 
1153
General Radio Discussion / Re: Longwave Pirates?
« on: February 16, 2018, 0322 UTC »I've clamped on to a strand of barbed wire fence as a ground plane for verticals. Works fine if you've got a tuner. There was someone I heard about who hooked into a guardrail for a SW tx and was well heard, but I don't recall who it was. That RF has to go somewhere.
I've used chain-linked fence as part of a ground radial system at HF. If you got it, might as well use it.
1154
General Radio Discussion / Re: Longwave Pirates?
« on: February 16, 2018, 0320 UTC »
When I was 14 or 15 years old, I made a fantastic LW TX from my Radio Shack 150-in-1 Electronic Project kit.
http://thenetworkgarden.blogs.com/photos/uncategorized/2008/05/30/150inone.jpg
I was shooting for the MW band but when I first turned it on, it was apparently operating in the LW band and soon figured it out when I dropped some capacitance in the tank circuit and I got it into the MW band and could finally hear it. In any case, once I got it going, I dropped it down to LW later (to avoid daytime MW interference) and got strong enough to be heard on the old Phillips radio on the other side of the house that could tune LW.
I WAS A LW PIRATE, HEARD IN TWO ROOMS OF MY PARENTS' HOUSE.
No QSL cards issued though.
http://thenetworkgarden.blogs.com/photos/uncategorized/2008/05/30/150inone.jpg
I was shooting for the MW band but when I first turned it on, it was apparently operating in the LW band and soon figured it out when I dropped some capacitance in the tank circuit and I got it into the MW band and could finally hear it. In any case, once I got it going, I dropped it down to LW later (to avoid daytime MW interference) and got strong enough to be heard on the old Phillips radio on the other side of the house that could tune LW.
I WAS A LW PIRATE, HEARD IN TWO ROOMS OF MY PARENTS' HOUSE.
No QSL cards issued though.
1155
General Radio Discussion / Re: The Luxembourg Effect. Ever heard it?
« on: February 16, 2018, 0305 UTC »
Sure. It was proposed back in the 1930s. It even has its own Wikipedia entry: https://en.wikipedia.org/wiki/Luxemburg%E2%80%93Gorky_effect
If you want to hear it in action live, go to the UTwente SDR and tune to 162, where Radio France used to be (until Jan 1, 2017). They left the TX on (without normal voice modulation) because, in addition to Radio France programming, it was carrying the digital modulation of the national time signal and they didn't want to remove access to that by shutting down the TX completely. https://en.wikipedia.org/wiki/Allouis_longwave_transmitter
In any case, you can hear voice modulation underneath that is co-incident in time with another station (forget which one). While I guess that could be a spurious product in the SDR, it is marked as being the Luxembourg Effect on the SDR dial. (I assume others have heard it on other receivers to make it not just an artifact of the SDR.)
If you want to hear it in action live, go to the UTwente SDR and tune to 162, where Radio France used to be (until Jan 1, 2017). They left the TX on (without normal voice modulation) because, in addition to Radio France programming, it was carrying the digital modulation of the national time signal and they didn't want to remove access to that by shutting down the TX completely. https://en.wikipedia.org/wiki/Allouis_longwave_transmitter
In any case, you can hear voice modulation underneath that is co-incident in time with another station (forget which one). While I guess that could be a spurious product in the SDR, it is marked as being the Luxembourg Effect on the SDR dial. (I assume others have heard it on other receivers to make it not just an artifact of the SDR.)
