Metrix GX 305, Руководство пользователя, Страница: 58 / 62

Technical Specifications
XIV - 58 Function Generators
Technical Specifications (contd.)
MODUL modulation
function
(GX 320 only)
FM Modulation
•
Frequency resolution: 0.28 Hz, 10 mHz or 1 mHz depending on the selected
range (depending on Freq
START
, Freq
END
).
•
Digital modulation: the modulating signal is read at a frequency of 65 kHz.
This amplitude (256 values) is then converted to a frequency.
•
INTernal source: frequency modulation using a sine signal with a frequency
of 1 kHz
±
1 %
•
EXTernal: modulation using a signal with an amplitude between
± 10 V on the BNC ‘VCG IN’ (-10 V Freq
START
and +10 V Freq
END
), with
a frequency of < 15 kHz
AM Modulation
•
In sine and triangle, digital modulation using a frequency modulating signal
of < 5 kHz
•
In square and LOGIC, digital modulation: the modulating signal is read at a
frequency of 150 kHz. This amplitude (256 values) pilots the output signal
amplitude.
•
INTernal source: modulation using a sine signal with a frequency of 1 kHz
±
1 % and an amplitude allowing to select a modulation at 20 % and 80 %
of the total programmed amplitude
•
EXTernal source: modulation using an amplitude signal between
± 10 V on the BNC ‘VCG IN’, with a frequency of < 5 kHz
(-10 V 100 %, 0 V 50 %, +10 V 0 % of the programmed amplitude)
SHIFT KEY Function
(SHIFT K)
(GX 320 only)
Internal FSK
•
Frequency resolution: 0.28 Hz, 10 mHz or 1 mHz depending on the selected
range (depending on Freq
START
, Freq
END
)
•
Frequency commutation using a TTL signal (0 - 5 V) 1 kHz ± 1 %
(0V Freq
START
and + 5 V Freq
END
), viewable on SWEEP OUT
External FSK
•
Frequency resolution: 0.28 Hz, 10 mHz or 1 mHz depending on the selected
range (depending on Freq
START
, Freq
END
).
•
Frequency commutation using a TTL signal (0 - 5 V) with a frequency of
< 1 MHz, on the BNC ‘VCG IN’ (0 V Freq
START
and + 5 V Freq
END
)
Internal PSK
•
Phase resolution: approx. 0.08°, adjustable from ± 180° by 1° steps
•
Phase switch using a TTL signal (0 - 5 V) 1 kHz ± 1 %
(0 V add Phase
START
and + 5 V add Phase
END
), viewable on SWEEP
OUT
External PSK
•
Phase resolution: approx 0.08°, adjustable from ± 1 80° by 1° steps
•
Phase switch using a TTL signal (0 - 5 V) with a frequency of < 1 MHz,
on the BNC ‘VCG IN’ (0 V + Phase
START
and + 5 V + Phase
END
)