General Radio Company - 603-A - Generator
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Gerät:
603-A
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The Type 603-A Standard-Signal Generator is a general-
purpose instrument, designed to have the widest possible
application in the measurement of receiver characteristics
and transmitter field strengths. By means of easily
accessible plug-in coils, the range extends from 100 kc to
25 megacycles, making the instrument particularly adaptable
to the testing requirements of modern receivers operating in
the high-frequency as well as in the broadcast spectra.
The standard-signal generator, with no additional equipment,
is suitable for determining the sensitivity and selectivity
of a radio receiver and, when modulated by an external
audiofrequency oscillator, it may be used in measuring
over-all fidelity.
When used in connection with a radio receiver, an output
meter, and a antenna of known characteristics, the standard-
signal generator may be used in making field-strength
measurements.
PRINCIPLE OF OPERATION — The Type 603-A Standard-Signal
Generator consists, essentially, of a calibrated
radio-frequency oscillator designed specifically for high
stability and minimum frequency modulation. An additional
oscillator, operating at 400 cycles is included to modulate
the output of the radio-frequency oscillator.
Provision is made for determining the percentage modulation
and for adjusting accurately the radio-frequency output voltage.
1 Handbuch
Reparatur und Bedienungsanleitung
Dokumenttyp:
Reparatur und Bedienungsanleitung
Seitenanzahl:
24
Größe:
14,8 MB
Sprache:
Englisch
Revision:
Dokument-ID:
304-D
Datum:
Qualität:
Gescanntes Dokument, alles ist lesbar.
Upload Datum:
30. Dezember 2016
MD5:
2a4de842-0855-c50c-17e0-a2044a83ad59
Downloads:
538