This sound effect can be found on Special FX, which was made by Avid Records.
This recording simulates a continuous-wave (CW) radio identification broadcast, combining a repeated attention signal with an alphanumeric station or message identifier. The transmission follows the structure of an automated beacon or scheduled radio bulletin, using authentic International Morse Code characters while omitting plain-language content. The decoded sequence breaks down as follows:
- VVV VVV VVV: A standard radiotelegraph attention and tuning signal transmitted repeatedly to alert receiving stations that a broadcast is beginning. In maritime and commercial radio practice, VVV was commonly sent prior to routine announcements, weather bulletins, and navigational information to allow operators to tune their receivers and prepare for incoming traffic.
- PBC34636-38-312: An alphanumeric identification group consisting of the letters PBC followed by a sequence of numerals separated by slashes. The format resembles a station identifier, traffic reference number, or message serial, although no documented radiotelegraph service has been identified using this exact designation. It most likely serves as a fictional identification code created for the recording.
- VVV VVV VVV: The attention sequence is repeated, reinforcing the beginning of a subsequent transmission cycle or providing additional time for receiving operators to tune in.
- PBC34636-38: A shortened repetition of the preceding identification group. The omission of the final numeric segment suggests either an abbreviated station identifier or an intentionally truncated repetition for dramatic effect.
Taken as a whole, the recording closely imitates the structure of an automated Morse radio beacon or scheduled communications broadcast. By combining repeated VVV attention signals with realistic-looking identification groups, the transmission conveys the sound of authentic radiotelegraph operations while avoiding the transmission of a verifiable operational message. This style was commonly employed in stock sound-effects recordings to evoke maritime, aviation, or military radio traffic without reproducing actual communications.
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