CDMA2000 (3G physical layer)
| Cellular | |
|---|---|
| 1G: IS-54 D-AMPS - AMPS - Nordic Mobile Telephone (NMT) 2G: Global System for Mobile Communications (GSM) - 2G CDMA (IS-95) |
 | |
|---|---|
| Frequencies | 850 MHz,900 MHz,1800 MHz,1900 MHz,450 MHz |
| Frequency Range | 450 MHz - 1900 MHz |
| Mode | RAW |
| Modulation | QPSK |
| ACF | 10 ms |
| Emission Designator | — |
| Bandwidth | 1.23 MHz |
| Location | United States |
| Short Description | CDMA is another standard for Cellular Devices with GSM being the first encrypted standard. |
| I/Q Raw Recording | — |
| Audio Sample | |
CDMA2000 also known as TIA/EIA IS-2000 is a 3rd generation cellular standard developed by 3GPP2. CDMA2000 uses CDMACode Division Multiple Access technology, similar to and backwards compatible with its predecessor cdmaOne. This standard is not compatible with and competed with UMTS, developed by 3GPP. CDMA2000 may come in different flavors including CDMA2000 1xRTT or CDMA2000 1xEV-DO, which are different optimizations and improvements to the original CDMA2000 standard. Many operators around the world are phasing out CDMA2000, in favor of the new 5G NR and 4G LTE networks.
Frequencies[edit]
List of frequencies can be found here.
Samples[edit]
EVDO forward link, recorded at 450MHz:
CDMACode Division Multiple Access access probe transmissions, also recorded at 450MHz:
Examples[edit]
CDMA450 on SDR: https://youtube.com/watch?v=2fFh1SyzbCg (uploaded by q2628)
CDMACode Division Multiple Access uplink/reverse link on SDR: https://www.youtube.com/watch?v=kUU0KCfSW48 (uploaded by KP4MD)
CDMA2000 Uplink on SDR: https://old.bitchute.com/video/3uaUddqgcOZk/ (uploaded by Anthony96922)
1xEV-DO Rev.A interference: https://www.youtube.com/watch?v=rlpMV0DlfGc (uploaded by invalidsyscall)
Multi-carrier EVDO (possibly Rev.B) https://youtu.be/aXHIURjQk5Y?si=f8hZAhz9ZHMQtugA (uploaded by ygadai kto, captured in Russia)
