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Messages - skeezix

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4981
0151Z In the noise to very weak. Also have a blob of noise 6952-6953.



4982
MW Loggings / Re: 1134 Voice of Croatia as heard in Michigan
« on: January 19, 2013, 1821 UTC »
Awesome catch!

Been missing them on SW. Have poked around MW looking for the Europeans, but so far only see faint carriers and no audio.

We have a local on 1130 (50 kW day, 25 kW night) so this could be difficult unless I take a trip out of 1130's pattern. And 1120's IBOC joins in the fun and interferes with 1130-1135.


The Croatian transmitter is in Zadar-Nin at 44.231400, 15.237448

Google Maps has a bad blurry picture of it, but Bing maps has a clear picture of it.

The thing puts out 600kW at 330 deg.

More info:
http://www.oiv.hr/broadcasting/terrestrial/analog-radio/analog-radio_en.aspx

They say 330 deg, but the following states 315 deg.
http://fmscan.org/ml.php?r=m&t=988

At 330 deg, that puts it to the NAm west coast. At 315 deg, that puts it into the center of NAm. Mpls is at 314.8 deg.

Considering the official plot of the pattern says 330 deg, that's probably the accurate one. Wish they would move it to 315 deg.


 



4983
SDR - Software Defined Radio / Re: ADS-B aircraft transponders
« on: January 18, 2013, 0547 UTC »
Interesting... I have an RCA amplified TV antenna as well, but never thought to try it here (in fact, forgot about the thing. My rabbit ears seem to work better).

4984
Nice catch.

4985
SDR - Software Defined Radio / Re: ADS-B aircraft transponders
« on: January 17, 2013, 0212 UTC »
Very nice Chris!


4986
SDR - Software Defined Radio / Re: ADS-B aircraft transponders
« on: January 16, 2013, 0422 UTC »
This is a pretty cool idea:
http://www.sportys.com/PilotShop/product/17165

Could probably do that with an SDR to grab the ADS-B weather with an app on a computer that will then stream it via local wireless network (multicast), unicast or even on the Internet to other devices running another custom app.

4987
SDR - Software Defined Radio / Re: ADS-B aircraft transponders
« on: January 16, 2013, 0352 UTC »
At any given time (in the evenings), I see 1 to 10 aircraft. I'm about 10 mi away from the major airport.

See a lot of zeros.
Some give their flight number
Some give their alt.
Some also give lat/long, track and/or speed.

A fraction give all of the info. Certainly see a lot of 0's for the data.

Interestingly, I now have one that has zero for the altitude (a4b15d).

After typing that up, now there are two more with zero altitude. And one of them is on a heading of 259 doing 422 kts.

Don't know if this thing has problems decoding or if the aircraft isn't sending all of the data. The default for dump1090 is max gain & no AGC.
I'm too far from the ground station (assuming its at KMSP) so I wonder if its giving useful data to fill in stuff so the a/c doesn't have to.

Seeing FDX320 from Memphis to Grand Forks at 38000', 453 kts, and a heading of 334 deg. Confirmed that with PlaneFinder.net. Lat/long had been 0 for a while on it, but they eventually filled in. And after that, it populated the flight #. Hope he has a little fun and tunes into Kenie (AA) on 365 kHz in Fargo.

Also seeing a couple of MN ANG C-130s... GOFER22 & GOFER03. Both of them have all zeroes.

Meanwhile, VIR20F (SFO-LHR) has all of the data and CKK234 (China Cargo Airlines, ORD-PUD)

For a brief moment, one aircraft was at 7375'. Looked at that number and though back to the last frequency Radio Croatia used to broadcast to us a couple of weeks ago. Miss them, a lot.

Still just using the little UHF magnetic antenna that came with the USB stick. Gets the job done for now and will be perfect when I zip by the airport one of the these days with the laptop and see if I can get any other data. Also need to find out were the ground stations are around here.



4988
Longwave Loggings / Re: recent longwave logs
« on: January 15, 2013, 1254 UTC »
Congrats on Raize!

Here's a short blog about Raize:
http://www.kg0vl.com/?p=427

You'll like our Minnesota beacons. Some of the nicest beacons around. 

One of my favorites is AA, Kenie, in Fargo, ND on 365 kHz. That one has been going strong since I first heard it (and used it while flying) in 1988.

We have one lone NDB left in Minneapolis, PPI on 400. Used to have a couple of others, but they've disappeared.


4989
SDR - Software Defined Radio / Re: ADS-B aircraft transponders
« on: January 15, 2013, 0145 UTC »
NICE!

I was playing with that last night. Saw the "interactive" option, but never bothered to actually try it.

That's a ton better than the non-interactive mode. Finally got a couple with a flight number. They must come in the packets and guessing the pilots probably program them in if they feel like it (have seen reports of interesting ACARS callsigns). I think the hex code & the tail number are in there more or less permanently.


BTW: Once the flight number is known, can track them at
http://flightaware.com
http://planefinder.net
http://www.flightradar24.com

The latter two also do ADS-B tracking. Non-ADS-B tracking is delayed about 5 minutes from the FAA data.


Seeing DAL264 on dump1090 and saw it on the PlaneFinder map. Unsurprisingly, the data was consistent.

DAL264 departed KMSP and enroute to Amsterdam. In a little while, it should be on HF. Wish I was on that flight.

Planefinder has a database where you can lookup the hex code and get the tail number.

4990
Equipment / Re: An SDR for $17 - The R820T USB SDR DVB-T Dongle
« on: January 15, 2013, 0138 UTC »
The ideal thing would be a map of the local area (zoomable) with live plotting of received aircraft and their track and an arrow of direction. Have them plot in some color (green?). When nothing is heard from an a/c in some amount of time, it turns yellow then a little bit later goes away. Some vertical tracking would be nice too. The aircraft icon could have the same data to look like an ATC radar.

Haven't looked at the other s/w packages and see what they have.


The antenna I was using was a little UHF stub that came with the radio. At the moment, have it stuck (magnetic) to my NC-183D in the basement (of a split level house, so about right at ground level). Also tried a horiz FM BC dipole which worked fine too. Not sure if one was better than the other.

Did notice a few aircraft coming into KMSP disappeared from my view under 7500'. But will have to watch that better.





4991
Shortwave Broadcast / Firedrake Jan 15, 2013 0040-0101Z
« on: January 15, 2013, 0100 UTC »
Firedrake:
16100 25322 S7
14980 35333 S7
14800 35433 S8
14700 15321 S5 In the noise.
13820 35432 S7
12500 35432 S8
12320 25432 S7

Found nothing above 16100 nor below 12320.

All of these went off at 0100Z.

15610 came on at 0100Z. 35333 S6. Couldn't find any others.



Perseus SDR with Wellbrook ALA1530S+ loop

4992
Equipment / Re: An SDR for $17 - The R820T USB SDR DVB-T Dongle
« on: January 14, 2013, 0230 UTC »
Have dump1090 running as well on my MBP.

Now decoding the a/c. Although having only their ICAO address is not all that interesting.

Searching for one of them finds that A8B848 is N661DN, a Delta Airlines 757.

In watching his reported altitude, looks like he's arriving here at KMSP. Looked up arriving Delta 757s around this time and there's one from Los Angeles and one from Phoenix. Welcome to Minneapolis, enjoy the cold.


4993
Doing plenty of damage here tonight.


4994
Shortwave Broadcast / Re: V.O.R.
« on: January 13, 2013, 0125 UTC »
I've been listening to R Aus since 1988 when I started with shortwave. In recent years, its been 9580 in our morning (CST). A few weeks ago, discovered them on 7240 when they leave 9580 and its usually pretty strong for a little while, then it fades as the sun continues to rise.
 
Used to be on in our evenings in 19m. Haven't had much luck lately with them there. We'll see if success on 19m returns in the summer.

While it may not be specifically NAm, they shoot it out to the Pacific and since we're on the other side of it and the signal is strong here, that's close enough.


4995
0120Z 45444 S9 ID




Kenwood TS-690S with 102' G5RV @ 25'

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