Geloso G4/214 Odbiornik
Producent:
Model:
G4/214
Data:
1964
Kategoria:
Grupa:
Opis:
AMATEUR-BANDS Receiver

Informacja

The number of radio amateurs actually active on the various frequency bands allocated for their use is quite considerable. If one wants to maintain contacts with reasonable certainty and to achieve a high percentage of intelligibility, then it becomes necessary to have a Receiver offering particular features. In order to satisfy the requirements of radio amateur communication it is advantegeous, therefore, that a Receiver destined for this use, instead of derive from a project which had to satisfy several different requirements, corresponds to it's final destination which, after all, is: To receive exclusively the signals of radio amateurs on those frequency bands which are set aside for their use. It is evident, therefore, that equipping such a Receiver with other frequency bands (e.g. the standard broadcasting band or the frequency bands locates between the radio amateur bands) could complicate the constructive solution and lead to the sacrifice of some particular advantage, which in consideration of the purpose of such a Receiver does not seem to be Justified. Derived from previous radio amateurs communication receivers produced by Geloso, the G 4/214 was designed with the intention of offering to transmitting amateurs a set of professional quality, designed to operate exclusively on the frequency bands allocated to their use. When planing this receiver, certain features of primary importance were particulary considered; e.g., stability vs. time and accuracy of the calibration, sensitivity and signal-to-noise latio, the ability to clip amplitude modulated noise interference (noise limiting), the ability to choose the audio (beat) note at will (accomplished by means of a beat frequency Oscillator operating at the intermediate frequency). In addition to that, this Receiver is capable of receiving amplitude modulated signals and c.w. signals as well as single-side-band-sup-pressed-carrier (s.s.b.) signals. In the following capter the principal technical features are listed (with figures).

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Serwis i User Manual
Typ ręczny:
Serwis i User Manual
Strony:
12
Rozmiar:
1.78 Mbytes (1869182 Bytes)
Język:
english, italian
Rewizja:
Ręczny ID:
Data:
1964 07 01
Jakość:
Skanowany dokument, wszystko czytelne.
Data przesłania:
2017 04 23
MD5:
aa96cba1743a1bd239c2688b990e9101
Pobrane:
769