Geloso G4/214 Odbiornik
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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).
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