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R.A.D. [2 records]
Record 1 - internal organization data 1987-03-12
Record 1, English
Record 1, Subject field(s)
- Radio Transmission and Reception
Record 1, Main entry term, English
- tuned-radio-frequency receiver
1, record 1, English, tuned%2Dradio%2Dfrequency%20receiver
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
- TRF receiver 1, record 1, English, TRF%20receiver
correct
Record 1, Textual support, English
Record number: 1, Textual support number: 1 CONT
In a TRF receiver all amplification up to the detector takes place at the frequency of the incoming signal. (...) Each stage is tuned to the same frequency and the tuning elements are ganged together for convenience when tuning. (...) TRF receivers are especially applicable to the low-frequency and very-low-frequency bands from 10,000 to 300,000 Hz. 1, record 1, English, - tuned%2Dradio%2Dfrequency%20receiver
Record 1, French
Record 1, Domaine(s)
- Émission et réception radio
Record 1, Main entry term, French
- récepteur à amplification directe
1, record 1, French, r%C3%A9cepteur%20%C3%A0%20amplification%20directe
correct, masculine noun
Record 1, Abbreviations, French
- R.A.D. 2, record 1, French, R%2EA%2ED%2E
correct
Record 1, Synonyms, French
Record 1, Textual support, French
Record number: 1, Textual support number: 1 CONT
"Récepteur à amplification directe". (...) Toute l'amplification jusqu'au détecteur s'effectue à la fréquence de l'onde porteuse. Il faut que l'ensemble soit accordé sur cette fréquence et il faut pouvoir faire varier la fréquence d'accord afin de sélectionner les signaux. Ce type de récepteur n'est utilisé que pour des gammes de fréquences assez basses (10 kHz à 300 kHz). 1, record 1, French, - r%C3%A9cepteur%20%C3%A0%20amplification%20directe
Record 1, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 1986-03-20
Record 2, English
Record 2, Subject field(s)
- Passenger Service (Rail Transport)
- Maritime Organizations
- Travel Agencies
Record 2, Main entry term, English
- SANS ÉQUIVALENT/NO EQUIVALENT
1, record 2, English, SANS%20%C3%89QUIVALENT%2FNO%20EQUIVALENT
see observation
Record 2, Abbreviations, English
Record 2, Synonyms, English
Record 2, Textual support, English
Record number: 2, Textual support number: 1 OBS
According to the specialists consulted, this concept is not specified in Canada. However, a descriptive phrase would be used, e.g. "availability by reason of cancellation" or "... were put on sale again". 1, record 2, English, - SANS%20%C3%89QUIVALENT%2FNO%20EQUIVALENT
Record 2, French
Record 2, Domaine(s)
- Trafic voyageurs (Transport par rail)
- Organisations maritimes
- Agences de voyage
Record 2, Main entry term, French
- remise à disposition
1, record 2, French, remise%20%C3%A0%20disposition
correct, feminine noun, France
Record 2, Abbreviations, French
- R.A.D. 1, record 2, French, R%2EA%2ED%2E
correct, feminine noun, France
Record 2, Synonyms, French
Record 2, Textual support, French
Record number: 2, Textual support number: 1 OBS
Lors d'une annulation a posteriori, remise à disposition, dans le système central, de tout ou partie des places réservées. 1, record 2, French, - remise%20%C3%A0%20disposition
Record 2, Spanish
Record 2, Textual support, Spanish
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