Messages

121

HF Mystery Signals / 2 PPS 0130 UTC 29 Nov 2018

« on: November 29, 2018, 0153 UTC »

Hearing ~ 2 pulses/sec on 6500/7000/7500/8000/8500/9000 kc. Strongest being 7500. Buddy across town is hearing it as well so not from inside the house.

122

General Radio Discussion / Re: Website dedicated to making your own vacuum tubes

« on: November 15, 2018, 1931 UTC »

Not nearly as high tech but homemade diodes, fet's & triodes.

http://www.sparkbangbuzz.com

123

Other / Arecibo (PR) HF Operations

« on: October 29, 2018, 1644 UTC »

8175 KHz 1630 UTC strong carrier.

www.naic.edu/vscience/schedule/scedfra2.htm

124

General Radio Discussion / Re: 160-190 Khz licenced users

« on: September 16, 2018, 2011 UTC »

Didn't see any "commercial" licenses listed in the FCC ULS database, wireless.fcc.gov/uls.

There are a handful of Part 5 experimental licenses, apps.fcc.gov/oetcf/els/reports/GenericSearch.cfm.

The power company has some PLC (power line carrier) systems in use for substation protection.

Guess that just leaves the LW broadcasters.

Scott

125

Utility / Re: Arecibo HF Operations Scheduled

« on: September 13, 2018, 1540 UTC »

Checked at 1530 UTC & carrier back on 8175kc.

126

Longwave Loggings / Re: 216 CLB ?

« on: September 09, 2018, 2059 UTC »

Was down there a few weeks a go & no signal. Found this in the FAA NOTAM list...

RDU 06/106 CLB NAV NDB OUT OF SERVICE 1806111739-PERM

Scott

127

Utility / Re: Arecibo HF Operations Scheduled

« on: September 06, 2018, 1901 UTC »

Carrier disappeared shortly before 1445 AST (1845 UTC) as per the posted schedule. Next one is Sep 13.

Scott

128

Utility / Re: Arecibo HF Operations Scheduled

« on: September 06, 2018, 1627 UTC »

Couldn't get confirmation they were actually running HF today. Listening during lunch, 1615z, hear a carrier on 8175kc.

Scott

129

Utility / Arecibo HF Operations Scheduled

« on: September 04, 2018, 2302 UTC »

According to the website, HF operations scheduled for Sep 6/13/20/27 & Oct 4. Usually +/- 5125kc & 8175kc.

www.naic.edu/vscience/schedule/scedfra2.htm

Scott

130

Utility / Korean Maritime 12 MHz CW

« on: August 02, 2018, 1209 UTC »

HLO   12843 kHz   1025Z   CW Marker
HLF   12916 kHz   1030Z   CW Marker
HLW   12923 kHz   1035Z   CW Marker

All about 339 with minimal fading but static crashes from local t-storms.

131

Longwave Loggings / Re: weak signal reception

« on: July 31, 2018, 2325 UTC »

Similar to exalted carrier reception with crystal radios. Here's a better explanation than I could do.

http://www.crystalradio.net/crystalsets/bfo/

132

HF Mystery Signals / Re: All 1 PPS pip / pulse / tick logs here please

« on: July 22, 2018, 0120 UTC »

Josh,

Sorry, no samples from Crane. Interviewed with them many years ago as an RF Engineer. Wide variety of electronic countermeasure experiments. Went to NTTR in Tonopah NV instead. Fascinating place, amazing what the military can get away with.

Scott

133

HF Mystery Signals / Re: All 1 PPS pip / pulse / tick logs here please

« on: July 12, 2018, 0219 UTC »

Strong here in NC using a Sony ICF-SW11 with whip antenna.
I'll add my 2c to the conspiracy theories...
1) DoD experimental signal (maybe NPT) from Crane Naval Facility in Indiana
2) Really slow data where frequency/pips equals bits
3) Some guy ROFL at the rest of us playing whack-a-mole

Scott

134

HF Beacons / Re: hiker 7998 khz

« on: June 28, 2018, 0246 UTC »

Weak with QSB & QRN but can hear it in there at 0230Z.

Scott

135

HF Mystery Signals / Re: UNID PIP 20 Meters 0027 UTC 16 June 2018

« on: June 17, 2018, 1510 UTC »

I was chasing some unidentified carriers & birdies last night (Jun 17 ~0200Z) & heard the Pips on 14745. Didn't look for any other frequencies. Fairly strong signal on an indoor 20m dipole.

Scott