Codan Data Modem

Codan Data Modem

Frequencies	3 MHz,30 MHz
Frequency Range	3 MHz - 30 MHz
Mode	USB
Modulation	PSK,FSK
ACF	—
Emission Designator	—
Bandwidth	1.8 kHz,2.56 kHz,400 Hz
Location	Worldwide
Short Description	Codan Data Modulation for Codan Data Modems. Has 3 distinct signals: Data, ALE, and SELCAL. This modulation is used in Codan's 9001, 9002, 3012 and 3212 modems.
I/Q Raw Recording	Download file
Audio Sample

Codan Data Modulation for Codan Data Modems. This modulation is used in Codan's 9001, 9002, 3012 and 3212 modems.

Data link comprises of 16 DPSKDifferential Phase-Shift Keying (Differential Phase-Shift Keying) channels at 112.5 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz). spacing on 1800 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz). of bandwidth.

Codan's CHIRP (an ALEAutomatic Link Establishment signal) uses PSKPhase-Shift Keying modulation across 32 channels with 80Hz of spacing. CHIRP uses 2560Hz of bandwidth.

Frequencies

Frequencies spotted at:

• 3450 kHzKiloHertz (kHz) 10^3 Hz
• 5254 kHzKiloHertz (kHz) 10^3 Hz
• 7915 kHzKiloHertz (kHz) 10^3 Hz
• 9066 kHzKiloHertz (kHz) 10^3 Hz

Mode Samples

Codan's Transmission Modes

CHIRP (ALEAutomatic Link Establishment)	Data

Decoding Software

Hobby Level Software

• Sorcerer (Only Codan CHIRP and SELCAL. No data.)

Professional Equipment/Software

• go2DECODE
• go2MONITOR
• Hoka 300-32 (standard has CODAN CHIRP, other modes special options)
• Krypto500
• Wavecom W-Code (Selcall and 9001)
• Wavecom W-Spectra

Video Examples

• Decoding with CODE300-32
• Codan Sellcall Examples

Additional Links

• I-56578 CODAN Chirp
• I-56578 CODAN-9001 Data Signal
• shoc Database: Codan Data and CHIRP
• WAVECOM Database: Codan
• Reading and Decoding the Transmissions of MFA Cairo (PDF) via UDXF website

Additional Images

Spotting a data transfer from a Codan Modem at 4600 kHzKiloHertz (kHz) 10^3 Hz. Seen in Russia, January 2014, at 16.340 MHzMegaHertz (MHz) 10^6 Hz.