CIS MFSK-16 XPA2
 | |
|---|---|
| Frequencies | 3 MHz,30 MHz |
| Frequency Range | 3 MHz - 30 MHz |
| Mode | USB |
| Modulation | MFSK |
| ACF | — |
| Emission Designator | — |
| Bandwidth | 250 Hz |
| Location | Russia |
| Short Description | Enigma Designation XPA2, also known as MFSK-16, CIS MFSK-14, and CIS MFSK-16, is a 14-tone MFSK signal said to have origin from Russian Intelligence and Foreign Ministry stations. |
| I/Q Raw Recording | — |
| Audio Sample | |
Enigma Designation XPA2, also known as MFSKMultiple Frequency Shift-Keying-16, CISCommonwealth of Independent States (CIS), the former Soviet Republic MFSKMultiple Frequency Shift-Keying-14, and CISCommonwealth of Independent States (CIS), the former Soviet Republic MFSKMultiple Frequency Shift-Keying-16, is a 14-tone MFSKMultiple Frequency Shift-Keying signal said to have origin from Russian Intelligence and Foreign Ministry stations.
XPA2 has a very unique preamble sequence, and a lower "sync" tone every 5 tones (numbers) that other MFSKMultiple Frequency Shift-Keying systems don't have. The preamble sequence can go on for a very long time before the actual message starts. XPA2 transmits 5 number groups of unknown meaning. XPA2 uses 7.5 BdBaud (unit symbol Bd) is the unit for symbol rate or modulation rate in symbols per second. and uses 15 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz). shifts between tones occupying 250 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz). of bandwidth. XPA2 was first seen on May 2006 and has been active ever since.
Although XPA2 uses 14 tones, its spacing suggests 16 possible tones, but two tones are always unused.
Samples[edit]
Frequencies[edit]
Decoding Software[edit]
- Hobby Level Software
- Professional Equipment/Software
Video Examples[edit]
- Numbers Station XPA2 15.814 Khz
- XPA2 with data
- XPA2 polytone brodcast
- XPA2 polytone station decoding using Rivet java software (Russian intel number station)
- XPA2 20140103 0800z 20258khz
- Decoding XPA2 Station
- XPA2 Shortwave Oddity Station
- XPA2 numbers station 15:02 GMT
- XPA2 Number Station @ 14.438 Mhz
- XPA2 Full Message At 1940z On 9/12/14
- XPA2 - 2120z 27 July 2014
- XPA2-2322z 9-29-12
- XPA2 13438 kHz
Additional Links[edit]
- RadioReference.com XPA2
- Numbers-Stations XPA2
- i-56578 swl XPA2
- Priyom Number Stations: XPA2
- RadioScanner.RU Multitone 10+1 (actually 14 tones, XPA2)
- NumberOddities.nl Recordings of Number Stations and Oddities
