Tektronix - DC 508A - Compteur
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Tektronix DC 508A
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Matériels:
DC 508A
Date:
1982
Catégorie:
Groupe:
Sous-groupe:
Information
The DC 508A 1.3 GHz Counter measures frequency from 10 Hz to
1.3 GHz. Frequencies from 10 Hz to 100 MHz are measured
using the direct input and from 100 MHz to 1.3 GHz using the
prescaler input. The counter also totalizes events from 0 to
000.000,000. Nine 7-segment light emitting diodes (LED)
provide a visual numerical display which allows resolutions
of 1 kHz to 1 Hz (0.1 Hz when using the direct input). The
decimal point is automatically positioned and leading zeros
to the left of the most significant digit or decimal point
are blanked. Digit overflow is Indicated by a front panel LED.
The 50 Ω prescale input has a vswrof 2.2:1 or less and is
protected by an easily replaced front-panel fuse which opens
at approximately 9 V rms. A wide-band limiting amplifier
with automatic gain control allows an input sensitivity of
20 mV rms over the frequency range of the prescaler input.
If the input signal falls below the minimum level allowable
for error-free prescale counting, the LED display is blanked
and an input error light is lit.
Direct input signals can be applied to either a front-panel
bnc connector or to the rear Interface connector.
The DC 508A operates in Tektronix TM 500-Series power
modules only. It will operate in any compartment of a
multiple-compartment power module.
1 Manuel
Manuel d'entretien et d'utilisation
Type manuel:
Manuel d'entretien et d'utilisation
Pages:
84
Taille:
23,9 Mio
Langue:
anglais
Révision:
revised
Manuel-ID:
070-3638-00
Date:
juillet 1982
Qualité:
Document scanné, tout est lisible.
Date de téléchargement:
30 décembre 2017
MD5:
6ac36cd2-3e64-2774-eb8f-beacf105fa8f
Téléchargements:
778