User contributions
From HFUnderground
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- 15:09, 27 December 2014 (diff | hist) N STANAG (Initial STANAG page entry, could certainly stand to be fleshed out a bit)
- 14:46, 27 December 2014 (diff | hist) m Signal Identification (→FSK Modes: Added link to STANAG page, page not yet written)
- 14:37, 27 December 2014 (diff | hist) m Signal Identification (→Non Communications Modes)
- 14:35, 27 December 2014 (diff | hist) m Signal Identification (→Spectrum Image)
- 06:21, 27 December 2014 (diff | hist) m Signal Identification (→Non Communications Modes: Spelling fix)
- 06:19, 27 December 2014 (diff | hist) N File:29B6.mp3 (Russian 29B6 radar. First 22 seconds of the recording uses an audio bandpass wide enough to capture the entire swept width. Remainder of the recording at more "normal" receiver passband widths, as might be heard by most listeners.) (top)
- 06:16, 27 December 2014 (diff | hist) N File:29B6.jpg (Russian 29B6 radar in ~9 kHz wide and 50 Hz rep rate mode of operation.)
- 06:15, 27 December 2014 (diff | hist) Signal Identification (Added Russian 29B6 radar)
- 01:46, 27 December 2014 (diff | hist) N File:UNID002 Pips.mp3 (Pips recording, three different examples, three different transmission dates.) (top)
- 01:45, 27 December 2014 (diff | hist) N File:UNID001 Sweepers.mp3 (Sweepers recording, multiple examples but all recorded in the ham 10 meter band.) (top)
- 01:44, 27 December 2014 (diff | hist) N File:UNID002 Pips.jpg (Image of Pips. 0.0625 second pulse length and 3.0 second pulse interval.)
- 01:43, 27 December 2014 (diff | hist) N File:UNID001 Sweepers.jpg (Image of sweepers in the ham 10 meter band.)
- 01:42, 27 December 2014 (diff | hist) Signal Identification (Added links to Pips and Sweepers recordings)
- 01:39, 27 December 2014 (diff | hist) Signal Identification (→Unidentified Signals: Added images for sweepers and pips)
- 14:04, 26 December 2014 (diff | hist) Signal Identification (→Unidentified Signals)
- 14:04, 26 December 2014 (diff | hist) m Signal Identification (→Unidentified Signals)
- 17:14, 15 December 2014 (diff | hist) m Signal Identification
- 16:42, 15 December 2014 (diff | hist) Signal Identification
- 11:44, 15 December 2014 (diff | hist) m Signal Identification
- 00:09, 15 December 2014 (diff | hist) N File:PLUTO 25Hz.mp3 (PLUTO radar in its less often used 25 Hz rep rate. In this case the swpet wdith is still 20 kHz, but the sweep repetition rate is only 25 Hz, so the chirp rate is halved. The audio in this recording is only 3 kHz wide, and represents how the signal migh) (top)
- 00:06, 15 December 2014 (diff | hist) Signal Identification
- 00:05, 15 December 2014 (diff | hist) N File:PLUTO 50Hz.mp3 (PLUTO radar in its most common mode of operation, 20 kHz swept width and 50 Hz rep rate. Audio in this recording is only 3 kHz wide and represents what is heard with a standard receiver in USB mode.) (top)
- 00:04, 15 December 2014 (diff | hist) N File:PLUTO.jpg (PLUTO radar in its most common 20 kHz width mode.)
- 00:03, 15 December 2014 (diff | hist) Signal Identification (Added PLUTO image links and audio links)
- 23:49, 14 December 2014 (diff | hist) N File:CIS 50 50.jpg (CIS 50-50 mode of the T-600 modem, 50 Bd, idle, 200 Hz shift.)
- 23:48, 14 December 2014 (diff | hist) N File:CIS 50 50.mp3 (CIS 50-50 mode of the T-600 modem, idle, 50 Bd, 200 Hz shift) (top)
- 23:47, 14 December 2014 (diff | hist) Signal Identification (Added CIS 50-50 mode, audio rec, and image)
- 23:09, 14 December 2014 (diff | hist) Signal Identification (Added CIS 36-50 image and recording links)
- 22:56, 14 December 2014 (diff | hist) N File:S4481 FSK.jpg (STANAG 4481 FSK image, 75 Bd, 850 Hz, KG-84 encrypted)
- 22:55, 14 December 2014 (diff | hist) Signal Identification (Added link to STANAG 4481 image)
- 02:50, 13 December 2014 (diff | hist) Signal Identification
- 02:49, 13 December 2014 (diff | hist) N File:ALE SND.mp3 (MIL STD 188-141A ALE (Automatic Link Establishment) sounding, 15708 kHz, USB.) (top)
- 02:47, 13 December 2014 (diff | hist) N File:ALE snd.jpg (MIL STD 188-141A ALE (Automatic Link Establishment) sounding. 15708 kHz USB.)
- 02:46, 13 December 2014 (diff | hist) Signal Identification
- 18:40, 5 December 2014 (diff | hist) Signal Identification
- 18:39, 5 December 2014 (diff | hist) Signal Identification (Add comment at top still under construction)
- 18:35, 5 December 2014 (diff | hist) Signal Identification
- 17:46, 5 December 2014 (diff | hist) Signal Identification (Spelling)
- 17:43, 5 December 2014 (diff | hist) Signal Identification (Added Unidentified Signals areas)
- 16:29, 5 December 2014 (diff | hist) Signal Identification (Added STANAG 4481 FSK recording)
- 16:25, 5 December 2014 (diff | hist) N File:S4481 FSK.mp3 (STANAG 4481 FSK with KG-84 frames, 8988 kHz, December 5, 2014, 1610 UTC.) (top)
- 15:45, 5 December 2014 (diff | hist) Signal Identification (spelling)
- 15:37, 5 December 2014 (diff | hist) Signal Identification (Cleaned up format)
- 15:35, 5 December 2014 (diff | hist) Signal Identification (cleaned up format)
- 15:33, 5 December 2014 (diff | hist) Signal Identification (Added links ot external radios)
- 15:27, 5 December 2014 (diff | hist) Signal Identification (Tweaked HF Mystery Links)
- 15:21, 5 December 2014 (diff | hist) Signal Identification (Added HFU HF Mystery Signals link)
- 15:13, 5 December 2014 (diff | hist) Signal Identification (Adjusted format, added levels of information)
- 15:08, 5 December 2014 (diff | hist) Signal Identification (Added basic reasons for the page to be here, and general outline of format used.)
- 14:59, 5 December 2014 (diff | hist) Signal Identification
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