EEA
From Signal Identification Wiki
 | |
|---|---|
| Frequencies | 30 MHz,800 MHz |
| Frequency Range | 30 MHz - 800 MHz |
| Mode | NFM |
| Modulation | MFSK |
| ACF | — |
| Emission Designator | — |
| Bandwidth | 5 kHz |
| Location | Worldwide |
| Short Description | EEA is a 5-tone selcall mode defined by the Electronic Engineering Association in the United Kingdom. |
| I/Q Raw Recording | — |
| Audio Sample | |
EEA is a 5-tone selcall mode defined by the Electronic Engineering Association in the United Kingdom.
Selcall (selective calling) is a type of squelch protocol used in radio communications systems, in which transmissions include a brief burst of sequential audio tones. Receivers that are set to respond to the transmitted tone sequence will open their squelch, while others will remain muted.
EEA has 15 tones to choose from, but only sends bursts of up to 5 tones. Each tone has a duration of 40 msmilliseconds (.001 of a second) per tone. The bursts transmit right before a radio transmission.
Samples[edit]
| EEA Full Range | EEA 5-Tones |
|---|---|
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Decoding Software[edit]
- Hobby Level Software
- Professional Software
Video Examples[edit]
Additional Links[edit]
- shoc Database: EEA
- WAVECOM Database: EEA
- NumberOddies.nl Faq, Page 32
- Connect Systems Incorporated Programming Manual with EEA
- Tone Signaling Charts
