121
European Pirates and Private Stations / Re: Radio Rock Revolution 5795 AM 1536 utc 11 Aug 2020
« on: August 11, 2020, 1927 UTC »
1915 trace of music. Too weak to ID then gone.
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.
Very good Jock. I didn't cop that
It's just a load of attention seeking drama. He's been posting on every message board about being closed down.
Nothing to see here!
Shouldn't have to say this but get rid of the SMPSU asap!
Stereo Tool is the audio processing software. It doesn't mean the transmitter is in stereo.
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122
European Pirates and Private Stations / Re: Radio Voyager 6950 AM 1918 utc 09 Aug 2020
« on: August 09, 2020, 2003 UTC »
Not really moving the s meter but clear audio here.
123
Equipment / Re: Would this dual antenna design work?
« on: August 04, 2020, 1814 UTC »
That will be fine on SW but on MW (Txing), the SW feedline running close to the tower may cause an issue with tuning.
124
European Pirates and Private Stations / Re: Radio Merlin Int. 6305 off the air 29 Jul 2020
« on: July 31, 2020, 2100 UTC »Brain
if you took time to read what i said i didn't say we were closed down our link to the tx got closed down our aerial was down our web site got closed down fact .I t was nothing to do with short wave I said we will be off air for a break as we didn't know what was going on .our aerial is now back up.We went off air for security reason ,and no link to our tx
stated Paul Watt.
One thing we can all agree on is that Brian is Brain(y)
Very good Jock. I didn't cop that
125
European Pirates and Private Stations / Re: Harmony 5780 AM 1909 utc 31 Jul 2020
« on: July 31, 2020, 1938 UTC »
Very wide 12 Khz audio today
126
European Pirates and Private Stations / Re: Radio Merlin Int. 6305 off the air 29 Jul 2020
« on: July 31, 2020, 1201 UTC »Sounds like Ofcom had nothing to do with it, this time.
It's just a load of attention seeking drama. He's been posting on every message board about being closed down.
Nothing to see here!
127
Equipment / Re: DRM pirates
« on: July 24, 2020, 1542 UTC »
I used the DReaM software to generate DRM about 16 or 17 years ago. I had to modify my high level audio MW transmitter in some way to take the coded signal. Can't recall exactly what I had to do but there were 2 outputs from the PC. One output went into the normal audio input on the TX and the other went to a small circuit that I had to put in the output of the PLL oscillator.
I don't think the mod is needed on modern transmitters though.
It worked.............sort of. Not having a portable DRM radio was not ideal for field tests but I was able to decode it on another PC in the house with a modified radio.
I don't think the mod is needed on modern transmitters though.
It worked.............sort of. Not having a portable DRM radio was not ideal for field tests but I was able to decode it on another PC in the house with a modified radio.
128
Equipment / Re: 20mb and 10/11mb folded dipole antennas
« on: July 16, 2020, 1558 UTC »
Just going by my experience of folded dipoles on band 2 VHF, I would say that the bandwidth is considerably better. I've been toying with the idea of making one for HF transmission but I'm not sure if I can build one to handle the power I would be using.
129
European Pirates and Private Stations / Radio Sovereign 3905 AM 2040 utc 13 Jul 2020
« on: July 13, 2020, 2041 UTC »
Sovereign @ 2040 moved from 3910.
edit by Ray : wiping the mess between 5805 and 3905
edit by Ray : wiping the mess between 5805 and 3905
130
European Pirates and Private Stations / Re: Radio Sovereign 3910 AM 1914 utc 13 Jul 2020
« on: July 13, 2020, 2025 UTC »
Co channel beating with another station
131
Equipment / Re: Higher highs and lower lows on MW TX antenna
« on: July 13, 2020, 1238 UTC »
Too little information.
Are you comparing SW with MW?
Are you comparing SW with MW?
132
Equipment / Re: Garbage Baluns
« on: July 06, 2020, 1850 UTC »
Looks like the same design as an old aerial I used to use made by Diamond. A BU-50.
It worked pretty well but then again, it's quite easy to match a valve transmitter to almost anything.
It worked pretty well but then again, it's quite easy to match a valve transmitter to almost anything.
133
The RF Workbench / Re: Cross Modulation Problem with Active Antenna?
« on: July 05, 2020, 1233 UTC »
I read about the active antenna again, and it says that the antenna must be powered by some sort of linear Power Supply. But all my power supply is switching mode psu, and that might cause excess noise and intermodulation? I will try to get a 12V rechargeable battery from the shed, and will try with that to see if the situation will improve.
Shouldn't have to say this but get rid of the SMPSU asap!
134
European Pirates and Private Stations / Re: Radio Nova (UK) 6930 AM 1631 utc 02 Jul 2020
« on: July 02, 2020, 2046 UTC »Hi Ray
finally got my 1/4 wave vertical running, 100 watts carrier off one of stretchy's Xmitter's using pwm with stereo tool looking after the audio processing
Good signal at this time, but storms are rising.
'stereo' : really ? what system ?
Stereo Tool is the audio processing software. It doesn't mean the transmitter is in stereo.
135
Equipment / Re: Antenna projects that were not successful
« on: June 27, 2020, 2036 UTC »
Decided to "upgrade" my MW transmission aerial from the inverted L that I was using to a short vertical.
Plan was to be about 65 feet tall using aluminum poles of different diameters that slot into each other, like a massive telescopic aerial, sitting on insulators.
Couldn't get it above about 50 feet high though so that would have to do. The 3 top stay wires were acting as loading.
Managed to match it to 50 ohms and switched on the 1KW TX. SWR was perfect........for a few seconds and then rapidly rose to beyond an acceptable level.
Water had got in to where the pole was sitting on the base insulator and the RF was literally boiling the water. No problem. Quick redesign and that was fixed.
A few weeks later I noticed that the tension of the top wires had altered slightly so the uppermost section was bending slightly to one side.
No problem, I'll sort it out in due course. Famous last words!
High winds took out the top 20 feet. It remaining 30 feet is now used to hang an inverted V HF antenna and the MW TX is back on the inv L.
Plan was to be about 65 feet tall using aluminum poles of different diameters that slot into each other, like a massive telescopic aerial, sitting on insulators.
Couldn't get it above about 50 feet high though so that would have to do. The 3 top stay wires were acting as loading.
Managed to match it to 50 ohms and switched on the 1KW TX. SWR was perfect........for a few seconds and then rapidly rose to beyond an acceptable level.
Water had got in to where the pole was sitting on the base insulator and the RF was literally boiling the water. No problem. Quick redesign and that was fixed.
A few weeks later I noticed that the tension of the top wires had altered slightly so the uppermost section was bending slightly to one side.
No problem, I'll sort it out in due course. Famous last words!
High winds took out the top 20 feet. It remaining 30 feet is now used to hang an inverted V HF antenna and the MW TX is back on the inv L.
