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Messages - BoomboxDX

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706
Other / UNID rhythmic data bursts, 11830 khz; 0610 UTC, 6/5/2013
« on: June 05, 2013, 0908 UTC »
Tuned the RFB45 through the 25 meter Shortwave broadcast band earlier tonight to find it was the only SW band with any decent propagation. Radio Australia's "Bush Telegraph" program was in pretty good on 11870 khz (with some interesting talk about Tasmania's opium poppy industry -- they use it for prescription painkillers), SIO 555, and New Zealand was in well also, on 11725 khz.

In between the two, on 11830, I heard these rhythmic bursts of what sounded like data, about 8-9 per second -- not sounding like any CW character, either.  It was propagating in and out, so I'm pretty sure it wasn't local QRM.  They were maybe S1 in strength on my DX-390.  

It's possible it may have been an image on both radios, but it didn't sound like one.

Edited to add: After listening through the sound samples from links Token placed on another thread, this sound was most similar to the LINK-11 sound.

707
Utility / UNID CW numbers & T's; 12642 khz, 0121z, 6/04
« on: June 04, 2013, 1501 UTC »
I was tuning the '398 around the maritime HF bands and chanced on some weak CW on 12642 khz., someone sending what seemed to be nothing but T's, a couple 'DE's, a K or two, and a lot of number groups.  

Because of weak propagation and the sender's CW speed (I can read up to maybe 10 wpm on a good day) I was only able to make out some of the numbers.  What I was able to copy was:

"DE (unreadable characters) 3...4  4...4  44...  7...4  T  T  4.056  3..37 T" etc.  Obviously, I missed a lot of numerals but there were a lot of 4's and 3's.  It's possible the T's were cut numbers, but the rest of the characters I heard were full morse numbers.

I'm not sure if it was four or five number groups, it sounded like five.

It was off at 0128 UTC, and then sent a "K" with some numbers, and then stopped again.

The next time I checked this frequency a few hours later at 0844 UTC there was a series of second-long CW dashes, sent one every second.  The dashes started a bit lower in frequency, quickly went up in frequency and then stayed there for the remainder of the dash.

My old Ferrell's book lists this frequency as duplex SSB maritime channel #1327, but that may have long changed -- and this wasn't SSB I heard.

708
Thanks for the info!  I had read about these 'hybrid' numbers broadcasts, but the last numbers Spanish broadcast I'd heard (last year) was the more 'traditional' one -- just the woman reading numbers after saying 'atencion'.  This sort is new to me.

709
Other / Re: Need Help Identifying This Beacon on 6320 kHz
« on: June 03, 2013, 1614 UTC »
RE: KLB and similar stations using CW markers:
 
Sometimes these marine coastal fixed stations send out their call letters in CW in between FSK bursts.  I used to have fun seeing which ones I could log from other parts of the world, by listening for the CW markers.

In the early 2000's, when I was last interested in utility listening, there were a lot more of these coastal stations doing this. There seem to be less of them doing this now.

710
I heard the beeper alone on the 13560 khz (no sweeper noise on top of it), 0811 UTC, 6/1.  

Other times I've checked recently it's either a single CODAR, a single CODAR with another just lower in frequency, with no beep.

Below 13560, I've heard what sounded like several CODARs ranging between 13410 and 13560.  It's hard to tell where one starts, and the next one stops (no SDR here).

RE: CODAR bandwidth -- from looking at the CODAR SDR shot on Wikipedia (taken by a ham -- it looks like it was a CODAR intrusion into the 20 meter ham band) it appears that CODAR sweeps are about 20 khz wide?  Is this pretty standard for most CODARS?

711
Heard a woman giving number sequences in Spanish.  The voice sounded like the same Spanish voice I've heard on HF since the 1980's.  But the transmission was not the same as back then. 

Instead of just numbers, I heard one set of numbers, followed by a data burst, followed by another set of numbers, followed by another data burst, etc.

Low modulation on the signal, as well as mediocre propagation... SIO 241-2 (also some QRM from a broadcast in Chinese on 11640).

Hadn't heard this sort of 'hybrid' numbers broadcast before.

712
HF Beacons / Re: russian naval beacons
« on: June 03, 2013, 1249 UTC »
Last night heard K, M, and a very weak F beacon, all on 13528 khz, 0713 UTC; and they were also present during recheck of frequency at 0741 UTC.  Not on 40 meters, though.  The first time I heard these single letter beacons there was a group of them on 7039 khz.  Obviously 7 mhz just wasn't propagating to the West Coast from the Russian Far East at this time.

713
Since I started tuning the HF bands again this year (when MW DX started petering out over the past month or so) I have yet to hear Firedrake.  If it's been on, it's been when I wasn't tuning the bands.  Although, I don't tune the high SW bands -- mainly 60 meters through 21 meters. 

714
RE: the CODAR: It was the regular sounding sweeper -- regular intervals.

Haven't heard the beeper since, but have heard the sweeper.

A question about the CODAR use: where do the actual transmissions come from?  Is there a list somewhere?  Can't seem to find one.

715
The 'beep beep beep' zeroed at 13560 khz. 

The sweep noise appeared there, and also appeared below 13560 (in my logbook I also noted the sweeper noise appearing around 13455 khz).  The sweeper noise might have been those CODAR signals I've read about, and I've think I've heard those same sweeper noises in other areas of the shortwave spectrum.

The single beep I haven't heard before.  And it seemed to fade and strengthen like an HF signal does, so I don't think it was locally generated.

Thanks for the response.  I'm definitely going to keep my ear on the frequency and see if the 'beep' reappears.

716
I tuned through the 13 mhz region to hear this beep beep beep, very weak, about every second, with a weird sweeping, white noise over the top of it.  No CW IDs or anything, just 'beep beep beep'.

Any ideas what this could be?  The one second beeps were gone during recheck at 2005 UTC.  Is this some sort of UTE or radar?  

PS, sorry if this is in the wrong section, wasn't sure if I should put it here, 'utility', or in 'other'.

717
Programming sort of matches what I heard on 6925 khz, 5/27.  Tuned in on my DX-390 to hear what sounded like 30's or 40's music, and it went off air abruptly at 0425 UTC.  SIO maybe 252.  Didn't hear the signal long enough to note exact strength, very weak and hard to read in noisy conditions.  AM mode.

718
Spy Numbers / Re: AUSTRALIAN NUMBERS STATIONS
« on: May 27, 2013, 1842 UTC »
I'm not in Australia, but check out a couple of the threads in this 'spy numbers' forum, where they mention the Chinese and other Asian numbers stations.  You're probably close enough to them to hear them.

719
Spy Numbers / Re: HM01 schedule
« on: May 27, 2013, 1023 UTC »
late to this thread, I know...

But the language in the QSL net site is Portuguese. The guy's in Brazil.

Just found his English language version of the same page:

http://www.qsl.net/py4zbz/eni.htm


720
Spy Numbers / Re: Current Active Numbers Stations
« on: May 27, 2013, 1002 UTC »
Lots of interesting info there, Token. Many thanks for sharing it with us.

Being that SW broadcast reception has been so mediocre lately, I've been tuning around more in between the bands.   I haven't heard any numbers stations in quite a while.  The last one was the well known Cuban woman 'atencion' station, some time last year. 

I discovered the Priyom website last night, found it quite informative to a beginner like myself.  The sound files they have there were pretty cool.

Here on the West Coast, Asia does come in fairly well early mornings, so I'll have to start listening more in between the bands than I used to.

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