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.

Show Posts

This section allows you to view all posts made by this member. Note that you can only see posts made in areas you currently have access to.


Messages - Exo

Pages: 1 2 [3] 4 5 6 7 8 9 10 11 ... 14
31
Report 2019APR22 0400UTC

10099.96 kHz AM, WWRB, 2nd harmonic, -22dBc from its 5049.98 kHz fundamental, spewing +10kHz into the 30 metre ham band, strong readable, -87dBm.

5049.98 kHz AM, WWRB, fundamental(ist), :) standard nonsense program content, strong readable, -65dBm.

A world class example of a shoddily engineered shortwave broadcast station.
Fundamental 20 Hz off frequency.
Spewing harmonics up the spectrum.
Dirty audio with AC hum.
Dumpster trash of the airwaves.

32
HF Beacons / Re: CW Message from HI
« on: March 11, 2019, 0737 UTC »
It's not often that a beacon does that.
Good catch!

33
HF Beacons / Re: 7 MHz Western USA Beacons
« on: March 09, 2019, 2008 UTC »
HI has appeared for the first time today here in central AZ. 19:56z 09MAR2019.

Logged it here also.
Then it distinctively went off the air while monitoring it.
 
It seems to transmit on an irregular basis.
When checked 2 hours ago, negative copy. 

Report
2019MAR09 2006UTC
7998.09 kHz CW, "HI", Morse beacon, readable, -122 dBm.

Report
2010MAR09 2010UTC Transmission ceased.
7998.09 kHz CW, "HI", Morse beacon


34
HF Beacons / Re: 7 MHz Western USA Beacons
« on: March 04, 2019, 2240 UTC »
HI was not around earlier today but is very strong now with minimal fading. 22:35 UTC 03MAR2019. 7998.07 KHz.

Great catch!
"HI" beacon sometimes seems to be elusive.

35
HF Beacons / Re: 7 MHz Western USA Beacons
« on: March 04, 2019, 2239 UTC »
HI fading up to 559 around 0015 UTC Mar 04. Lots of QRM from OTHR. Faded out completely around 0030.

Good catch!

36
Hi Exo 
Your shot of the waterfall is interesting you seem to have much more grot at 13560 than I hear at my location. What s/ w do you use ?

Hi Vic,
It is a modified screen capture from a kiwiSDR on a private LAN.

37

Carrier freq is 13565.2kHz

That's an even better frequency.
The closer to 13566 the better.


38
22 Meter Band HiFER Beacons / Re: New beacon now on 13564.4
« on: February 24, 2019, 0652 UTC »
Good frequency.

39
General Radio Discussion / Re: hfundergrounds wiki pirate list error
« on: February 24, 2019, 0617 UTC »

40
HF Beacons / Re: 4 MHz Western USA Beacons
« on: February 06, 2019, 1814 UTC »
Highlight of this report: "Windy" Beacon 4102 kHz long wind dash

Report
2019EBF06 1714UTC

4095.8~ kHz CW,  "Viking", dasher beacon, readable
4096.3~ kHz CW, "Haystack", dasher beacon, readable
4096.87 kHz CW, "MarinDit", ditter beacon, weak readable with fading below noise
4102.86 kHz CW, "Windy", Morse telemetry beacon, -114 dBm, readable (TMP53 B128 W_)
Average noise level ~ -120 DBM, with hf radar interference

PLAY AUDIO Windy Morse telemetry beacon LONG WIND DASH with TMP53 B128 W_ 2019EBF06 1714UTC

Waterfall and spectrum image below showsWindy Morse telemetry beacon LONG WIND DASH with TMP53 B128 W_ 2019EBF06 1714UTC:



Ionogram image below for this report time interval, courtesy of the nearby Pt. Arguello Digisonde ionosonde in California:

41
HF Beacons / Re: Teotwaki's Afternoon Beacon Log
« on: February 04, 2019, 0302 UTC »
been camping on the frequency for hours and finally there si a readable signal

6626.320 KHz  Rainy.

Good going!
But, no Rocky?

42
HF Beacons / Re: Windy Problems 4102.8 CW 1046 UTC 30 Jan 2019
« on: February 03, 2019, 0432 UTC »
Windy has been logged with the long dash, it happens a lot when there is very slow wind, then the wind stops so the anemometer stops in the middle of making a wind dit, which keeps it keyed.

43
Other / 10500kHz Ditter Hopper 2019JAN25 2145UTC
« on: January 25, 2019, 2231 UTC »
Ditter hopper.
When the logged frequencies are monitored simultaneously on separate receivers or instances, it is observed hopping repetitively from one freq to the next higher frequency in sequence.


Depending on which frequency or time interval is listened to, it sounds like either continuous dits, or groups of 3 dits.
First was logged on 14350 kHz around 1940UTC, and then a closer look at it yielded other companion signals at around 2145UTC.

Report
2019JAN25 2153 UTC

10150.0 kHz CW, frequency hopping, good readable, -112 dBm
10500.0 kHz CW, frequency hopping, good readable, -110 dBm
14350.0 kHz CW, frequency hopping, readable, -120 dBm
Timing Notes:
Pattern on 14350 kHz. approximately 28 millisecond dit duration, 3 dits at 1.411 second repetition rate, 9.4 second pause.

Note: noise level in 3 kHz bandwidth approximately -130 dBm.

2019JAN25 2200 UTC
Signal ceased on all logged frequencies simultaneously at the top of the hour.


Frequencies logged are noted to be in standard increments of kHz, and sequential hop activity is similar to the operational pattern of the Son of Yosemite Sam hopper from November 2018.

The 9 second cycle is similar to Son of Yosemite Sam.

PLAY AUDIO RECORDING 14350kHz Ditter Hopper 2019JAN25 2153UTC

Wild guess: It is a low power frequency hopping antenna system being tested, probably located somewhere in southwestern USA.


.

44
HF Beacons / Re: 7 MHz Western USA Beacons
« on: January 24, 2019, 0422 UTC »
Am hearing HI this morning at 1745 utc.  Good signal.

73, Mark

Is the HI beacon the new incarnation of Hiker?

45
6999 kHz USB, 6998 kHz USB and 7000 kHz LSB are all active at once.  Not to mention the amateur radio operators transmitting CQ on 7000.1 kHz and 7000.2 kHz, going by the signal strength, these ham operators are at least attempting to jam these intruders off of 40 meters.  Unfortunately it doesn't seem to be working. 

6999 kHz USB 6.999 MHz USB - YL and OM talking, can't really make out the language because there's so much QRM.  6998 USB is also active and there's some weak signals on 7000 kHz LSB on top of that.  Naturally, the CW signals are owning the frequency, making it impossible for me to make anything out.  The 6999 USB stations don't seem to mind though.

Heard via the Westminster, MD KiwiSDR.

CW is such a pitifully inadequate way to jam.
Most modern SSB radios have auto-notch or notch.
But maybe it makes hams think they are marking their territory.

Pages: 1 2 [3] 4 5 6 7 8 9 10 11 ... 14