Telecommunication Journal, 32. sējums,265-550. lapaInternational Telecommunication Union., 1965 |
No grāmatas satura
1.–3. rezultāts no 59.
277. lappuse
... noise figure . Receiver bandwidth Effective radiated power ( maximum ) Transmitting frequency 7359.423 Mc / s 0 db ... noise . The system noise temperature was measured as low as under 40o K. 2.4 Improvement of signal - to - noise ratio ...
... noise figure . Receiver bandwidth Effective radiated power ( maximum ) Transmitting frequency 7359.423 Mc / s 0 db ... noise . The system noise temperature was measured as low as under 40o K. 2.4 Improvement of signal - to - noise ratio ...
301. lappuse
... noise objectives The mean noise power during the most unfavourable hour ( in practice , the busy hour for the operating services ) provides a satisfactory criterion for cable carrier telephone systems , but it was noted that its ...
... noise objectives The mean noise power during the most unfavourable hour ( in practice , the busy hour for the operating services ) provides a satisfactory criterion for cable carrier telephone systems , but it was noted that its ...
429. lappuse
... noise performance of telephone channels total noise 200 × 10 * pW ( 27 db ) exchange system 0.1 x 10 " pW ( 60 db ) approach circuit 3x 10 * pW ( 45 db ) radio circuit 197 x 10 * pW ( 27.1 db ) thermal noise 31 x 10 * pW ( 35 db ) cross ...
... noise performance of telephone channels total noise 200 × 10 * pW ( 27 db ) exchange system 0.1 x 10 " pW ( 60 db ) approach circuit 3x 10 * pW ( 45 db ) radio circuit 197 x 10 * pW ( 27.1 db ) thermal noise 31 x 10 * pW ( 35 db ) cross ...
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