Messages

391

North American Shortwave Pirate / Re: Old Time Radio 6770 AM 1327 UTC 7 Feb 2018

« on: February 07, 2018, 1409 UTC »

I only caught this station once, in noise playing "Our Miss Brookes" old time radio show.
I keep listening.

392

North American Shortwave Pirate / Re: Radio Illuminati 6960 AM 1656 UTC 4 Feb 2018

« on: February 04, 2018, 1727 UTC »

  SDR shows a weak carrier. Once in a while I can hear a musical beat or trace of modulation- 1727UTC

393

North American Shortwave Pirate / Re: Yetti Radio 6925.6 AM 1442 UTC 4 Feb 2018

« on: February 04, 2018, 1629 UTC »

  Awesome job mates.  Yetti survives and watch during full moon.

394

North American Shortwave Pirate / Re: Yetti Radio 6925.5 AM 2023 UTC 3 Feb 2018

« on: February 03, 2018, 2310 UTC »

   I was away most of day, and received an Email from Engineer Zeke of Yetti radio Intl. When I saw some of you crack operators (not drug dealers) received such good SSTV I sent the good ones to him by a special Email.
He responded to say the transmissions today were domestic and from the repaired Streach Brick that has a fuse blown.
BTW for others who use the brick, the fuse is 3 amps.

So, you guys did a remarkable job. More to come, but Montreal Rose has shifted her clandestine operations to 5050.
So, in 41 meters, for now its only the little low powered Brick.

Hope you have a great week end.

The best rx was from this operator and we both find ourselves amazed. Yetti doesn't disclose cave location but said he believes the Op is at least 400 miles away.

395

North American Shortwave Pirate / Re: UNID 6955 USB 0051 UTC 03 FEB 2018

« on: February 03, 2018, 0104 UTC »

  Well above noise at S 5 little fading. Good audio genre, Blues  0105 UTC
 

396

North American Shortwave Pirate / UNID 6940 USB 0012 2 Feb 2018

« on: February 03, 2018, 0014 UTC »

 
  Began to listen with FT900 and heard very nice rock genre audio on for about 30 seconds. Then disappeared without ID

397

North American Shortwave Pirate / UNID 5010 AM 2320 UTC 2 Feb 2018

« on: February 02, 2018, 2322 UTC »

  At night this SDR stick gets spurs, so I submit with caution

I heard the beautiful song "Georgia" in noise bobbing up and down. darn nice tune
There is ssb interference also.
If nobody else hears its a spur.

398

North American Shortwave Pirate / Re: UNID 6924.7 AM 1951 UTC 2 Feb 2018

« on: February 02, 2018, 2017 UTC »

  Oh darn. Missed it. wanted to hear a Streatch brick. This is Yetti's camp fire transmitter. It sounds damn decent, see recordings.
Only issue, gotta go 250 watts to get that fire to the wire. We wait for Mad man Across The water reports of the bigger box.
Oh, yes that little fuse is 3 amps..
Hope we get some fearless Pirate boats floating today and this weekend.
 

https://vimeo.com/252340503

The Brick received under favorable condx at approximately 560km !

399

North American Shortwave Pirate / Re: Montreal Rose 5010 USB was AM 1427 UTC 2 Feb 2018

« on: February 02, 2018, 1853 UTC »

   I was out, but I see somebody did ID Montreal Rose.. aka Tokyo Rose haha
Well, that station supports a couple of sometime networks and her own. So, I look forward to getting more from that freaquency.
I would advise ops in US don't trust sleeping dogs (you know who). Change frequencies, do not use kw power except on very special occasions, keep programs brief and never  come back night after night on same channel.
You will be like the Tuna Fish Charlie caught in the net.
I short do not trust, use common sense, not too much smoke for a long transmission. ( I would also say, the FCC budget is dragging and they do not do their paid work fighting telephone and inter net crime. They go for the easy stuff.

400

General Radio Discussion / Re: Broadcasting in SSB many advanategs a few disadvantages

« on: February 02, 2018, 0002 UTC »

 wanted to add a tech note. In sideband there is a translated up converted signal that is in essence audio. Just has an envelope at an RF frequency. In communications the information signal must be lower in frequency than the so called carrier. That's why the Navy nuclear sub transmitter cannot transmit speech or even key the 2 million watt carrier. They in fact, phase modulate the carrier. The reason is 20khz Yes, that right.. the same frequency as upper end of good human hearing, is the carrier.
No baseband could possibly amplitude modulate that frequency and the rules of the genius Shannon (he was a scientist at Bell Labs) must be obeyed. Of course its the rules of nature.. LOL. The information rate of such nuclear communications to subs is very low BAUD They must trade time for bandwidth !
Now, for purpose of discussion. A transmitter must be phase linear when transmitting information in sideband. The OLD transmitters could not reach even 2 or more kilohertz base band because the phase lock loops were phase correction the carrier frequency at a rate comparable with the audio base band! It sound water like.
But today its a different ball game DDS is rock stable. No phase noise. Nothing is being feed back to keep frequency stable.
Hence audio out to any reasonable bandwidth can be transmitted.. BUT most sideband transmitters available without tinkering band limit the base band signal. Hence 3.2 kHz is pretty much where it sits because the transmitter was intended for speech.
But short little nurds know well you pull out the baseband filters and the rainbow comes out. That is 15 kHz of baseband.
Who has these transmitters?? I think some smart dude with a Flex radio.. LOL

401

Equipment / Re: uBITX 3-30 MHz 10W SSB/CW Transceiver Kit - $109 until Xmas

« on: February 01, 2018, 2114 UTC »

 I certainly would like a kit that would perhaps to 10 watts transmitter only USB and have a DDS as a signal base, plus forget the filter on the sideband. Of course dumb lower sideband and carrier with phasing or some other method. Just no demand for such a beast, but in early ssb days, transmitters were sold separately from receivers. Looking at the radio, its a  deal .. my issue with needing large mag class to assemble this. I think I am interested in getting one if they remain available.

402

General Radio Discussion / Re: Broadcasting in SSB many advanategs a few disadvantages

« on: February 01, 2018, 1741 UTC »

 FCC needs somebody to compliant before that station gets DF ed .. In old days, in early sixties, they actually did have radio sheriffs monitoring to get somebody. With technology and growing need for personnel elsewhere that's over for decades.

403

The RF Workbench / Re: Amperage of Fuse in Streachy Lunch Box

« on: February 01, 2018, 1729 UTC »

As 2018 progresses I have some stuff I am selling off. If I do, begin an electronics lab with basic equipment. Yes sir a magnifying glass, big one is a necessity. I used to have one on my bench at university.

404

Equipment / WOw, for those with $$ to burn

« on: February 01, 2018, 1705 UTC »

  Well, guys, I think the idea that FETS are not able to deliver the fire to wire is over. Must be some front line technology here Maties !

1500 watts single ended design, freq from 1.8- way up above . These things could be lethal.

https://www.mouser.com/new/nxp-semiconductors/nxp-mrf1k50-reference-circuit/

405

General Radio Discussion / Re: Broadcasting in SSB many advanategs a few disadvantages

« on: February 01, 2018, 0019 UTC »

Red Hat, the sharks could strike, but frankly they need a compliant. FCC doesn't do squat without a compliant.
That's why I think keeping it decent, maybe not long transmissions and on various frequencies at random times is best safe guard a Free Shortwave has. The interest commercially and otherwise in shortwave decreases every year. Grave yards are full of shortwave broadcast transmitters. ABC just ditched after 70 or more years its Over Seas service. Not enough listeners for the expense. They actually took Shep off the air for two weeks as a TEST to see who or how many listeners would Email them.
They got a very small response and I think that site is now sheep and goats?

Also, I am shocked that 500kw transmitters exist. Can you imagine paying for an extra 250 kw and get half an S point.