Avtech AVMH-4, Инструкция по эксплуатации

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delay control slightly.
5. TRIG Input. The external trigger signal is applied at this input when the PRF range
switch is in the “EXT” position.
For standard units, a TTL logic level pulse (i.e., 0V = TTL LOW, +3V to +5V = TTL
HIGH) is required to trigger this input, and the input impedance is 50Ω to ground (or
1kΩ, for units with the -Z1K option).
For units with the -ECL option, an ECL logic level pulse (i.e., -1.6V = ECL LOW, -0.8V
= ECL HIGH) is required to trigger this input, and the input impedance is 50 Ω to -2V.
The input pulse width should be > 10 ns.
6. SYNC Output. This output precedes the main output, and is typically used to trigger an
oscilloscope. When triggering internally, the SYNC pulse width varies, but is always >
10 ns. When triggering externally, the SYNC output is a buffered replica of the TRIG
input. The amplitude is fixed at +3V approximately, and this output will drive 50 Ohms
or higher.
7. Pulse Width Controls. These two dials control the pulse width. The T
R
dial
determines the position of the impulse rising edge, and the T
F
dial determines the
position of the impulse falling edge. Used together, they control the pulse width.
8. Amplitude Control. This dial controls the pulse amplitude.
9. OUT Connector. This is the main output. (This output requires a 50Ω load to
function properly).
Caution: Voltages as high as ±100V may be present on the center conductor of
this output connector. Avoid touching this conductor. Connect to this connector
using standard coaxial cable, to ensure that the center conductor is not exposed.
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