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Messages - skeezix

Pages: 1 ... 266 267 268 269 270 271 272 273 [274] 275 276 277 278 279 280 281 282 ... 366
4096
Software / SDR programming?
« on: June 01, 2016, 0008 UTC »
I have a Perseus, but want to do some stuff that isn't possible with the std GUI software.

Initially, I want to choose a bunch of frequencies to track & record the signal strength of a signal on a frequency, 24x7. Since carriers aren't exactly _right_ on a specified frequency, need to have a sludge factor of +/- 100 Hz to find the thing nearby and then track it. If it goes beyond +/- 100 Hz, then it can be forgotten about.

The input would be a list of frequencies and a name of the log file. The output would be the frequency, date, time, and signal level. Maybe shift from listed frequency, but since my Perseus doesn't have one of those high precision oscillators, I wouldn't put too much into adding freq drift.

In the GUI, the Perseus can go up to 1600 kHz of bandwidth received & demodulated, but they have a little program that displays the entire 0-40 MHz spectrum, but not in great detail. Which tells me this thing can go very wide, but in limited means. All I want is amplitude. If I have to restrict to 1600 kHz, well, not ideal, but will still work with that.


Down the road... want to do more and be able to specify freq + bandwidth and record AM/SAM signals. Scattered across the band, possibly simultaneously on a schedule.

And all via CLI only, on Mac, FreeBSD and/or Linux. No fancy GUI nonsense.

So The Question® is, where to begin?  ;D

I have a book on DSP, can do Perl and some minor hacking in C.

While I'd like to use the Perseus since I already have it, I would not object to buying a less expensive SDR that may be easier to program.

Would also like to get an SDR with the 10 MHz reference to study the frequencies of the stations, incl the time & freq standards. How does WWV's signal shift by the time it gets here?


4097
2324Z 35433 S7 Greek music. Decent signal, but seems a little noisier than usual.





Yaesu FT-847 with homebrew PA0RDT Mini-Whip

4098
0145Z 25442 S3 YL talking.

They started late as what sounded like transmitter problems with it having a hard time staying on the air. They did get it to stay on with no audio, but as soon as they put audio, it dropped. Eventually got it going.

Signal wasn't all that strong. Unknown if that's normal or they were running at reduced power related to the xmtr problems.



Yaesu FT-847 with homebrew PA0RDT Mini-Whip

4099
Huh? / Re: NASA spots monster hole on the Sun
« on: May 31, 2016, 0118 UTC »
Mmmmmmmmm.... fiery donut.

4100
0036Z 45544 S7 ID "BID Radio. Burn It Down"
0036Z 45544 S7 Bruce Springsteen "Small Town"
0040Z 45544 S7 Green Day "Boulevard Of Broken Dreams"
0044Z 45544 S7 Aerosmith "Sweet Emotion"
0048Z 43543 S7 Kansas "Carry On Wayward Son". Digital QRM came on shortly after the song started. QRM went away ~0052Z.
0054Z 43543 S7 BTO "You Ain't Seen Nothing Yet". QRM is back (right after song started). Gone ~0055. Returned 0057.
0058Z 45544 S7 Travis Tritt "It's A Great Day To Be Alive"
0102Z 45544 S7 Signing off.
0102Z 45544 S7 Kidd "Star Spangled Banner"
0104Z Off Air.




Yaesu FT-847 with homebrew PA0RDT Mini-Whip

4101
0126Z 55545 S9+20 Blues coming in nicely. Hearing something well under it that might be the Cuban jammer, but is barely noticeable.
0127Z 55545 S9+20 ID "International Voice of the Blues"

Dear Pedro, why are you jamming Blues?




Yaesu FT-847 with homebrew PA0RDT Mini-Whip

4102
Has been going on now since 2345 UTC today (22 May 2016) on the U of Twente's WebSDR. Nothing on my receiver here (but too light for that frequency, if they're over in Europe).






4103
2337Z 15441 Can barely hear the carrier and only on rare occasion some music.




Yaesu FT-847 with homebrew PA0RDT Mini-Whip

4104
3+ years ago, I heard something similar on the Univ of Twente WebSDR:
http://www.hfunderground.com/board/index.php/topic,10205.0.html

Haven't thought about it until you posted (oddly, I thought I heard it last summer, not 3.25 years ago).



0156Z 45444 S9 Bird calls with a cuckoo going strong. I vividly remember the cuckoo from the previous time I heard them.
0207Z Dropped from around -70 dBm to right into the noise (-90dBm). Weak carrier visible and no audio is heard. Station is gone for tonight.

While listening on the U Twente's WebSDR, also listening for a carrier on my radio, but never heard anything.


4105
0148Z 45444 S9 Greek music. Have been playing that for a while this evening. // 9935





Yaesu FT-847 with homebrew PA0RDT Mini-Whip

4106
0034Z 45544 S5 IS "Testing 1,2,3... "
0035Z 45544 S5 Bessie Smith "Lost Your Head Blues"
0037Z 45544 S5 Ella Fitzgerald "Lost In Meditation"
0040Z 45544 S5 Billie Holliday "Baby Get Lost"
0043Z 45544 S7 ID "Wolverine Radio"
0043Z 45544 S7 Percy Mayfield "Lost Love"
0046Z 45544 S7 Lester Williams "I Can't Lose With The Stuff I Use"
0048Z 45544 S7 Dinah Washington "I'm Lost Without You Tonight"
0051Z 45544 S7 ID "Wolverine Radio"
0051Z 45544 S7 Patsy Cline "I've Loved And Lost Again"
0053Z 45544 S7 Ray Charles "Born To Lose"
0057Z 45544 S7 The Righteous Brothers "You've Lost That Loving Feeling"
0100Z 45544 S7 ID "Wolverine Radio"
0100Z 45544 S7 The Temptations "I'm Losing You"
0107Z 45544 S5 Steely Dan "Rikki Don't Lose That Number"
0111Z 45544 S7 ID "Wolverine Radio"
0112Z 45544 S7 Tom Petty & The Heartbreakers "Even The Losers"
0115Z 45544 S7 The Clash "Lost In The Supermarket"
0119Z 45544 S7 R.E.M. "Losing My Religion"
0123Z 45544 S7 ID "Wolverine Radio"
0123Z 45544 S7 Go-Go's "The Whole World Lost Its Head"
0127Z 45544 S7 Bonnie Raitt "Three Time Loser"
0130Z 45544 S7 B.B. King "If I Lost You"
0135Z 45544 S7 ID "Wolverine Radio"
0135Z 45544 S7 SSTV
0137Z Off Air.




Yaesu FT-847 with homebrew PA0RDT Mini-Whip



4107
Shortwave Broadcast / Re: What is this? 11530 khz 23:05 UTC
« on: May 21, 2016, 2341 UTC »
Could you tell which language people were talking/yelling in?

If it was Spanish, then perhaps Pedro was asleep at the switch, again.
http://www.hfunderground.com/wiki/Pedro



4108
Oh man, I wanted to listen/watch this. My Dad texts me at 1629Z that it starts in one minute and on local TV. The problem- I was otherwise pre-occupied. And BBC HF reception usually poor at best. I didn't try today, but I should have. The HF radio was 1' away.

Dear BBC, can you send the U.S. your signal on the shortwaves? This very limited FM broadcast non-sense you have over here is just about useless. If the Greeks can pump out the Watts in the midst of their financial crisis to play Greek music...

Alas... what do I know.


4109
If UVB-76 goes off the air...


4110
I received one a couple of years ago. Been meaning to send in more reports....


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