Boonton 4500B Peak Power Meter Manual do Utilizador descarregar pdf (Página 290)

Boonton 4500B RF Peak Power Analyzer

Remote Operation

5-90

5.5.18 TRIGger Subsystem

The TRIGger group of commands is used to control synchronization of data acquisition with external events. TRIGger

commands generally affect only the Pulse mode and the gated Statistical mode.

TRIGger:BTRIGger:ECOUNT

Description: Set or return the B trigger event count. The event count is used when the B trigger is in the delay

by events mode, TRIGger:BTRIGger:MODE is set to EDLY.

Syntax: TRIGger:BTRIGger:ECOUNT <n>

Argument: <n> = 1 to 999,999

Valid Modes: Pulse and gated Statistical modes only

TRIGger:BTRIGger:LEVel

Description: Set or return the B trigger level for synchronizing data acquisition with a pulsed input signal or

external trigger pulses. The internal trigger level entered should include any global offset and will

also be affected by the frequency Cal-factor. The available internal trigger level range is sensor

dependent. For internal trigger, the trigger level is set and returned in channel units. The external

trigger has two ranges, 5 and 50 volts. Note that there is a small amount of hysteresis built into

the trigger system, and the signal should have at least one dB greater swing in each direction past

the internal trigger level setting, and somewhat more at low levels. The B Trigger is not active if

TRIGger:BTRIGger:MODE is set to OFF.

Syntax: TRIGger:BTRIGger:LEVel <n>

Argument: <n> = -39.9 to +20 dBm (plus offset, if any) (internal trigger)

<n> = 5.0 volts or 50 volts (external trigger)

Valid Modes: Pulse and gated Statistical modes only

TRIGger:BTRIGger:MODE

Description: Set or return the B trigger mode for the delayed trigger function with pulsed signals. When set to

OFF, the delayed B trigger is inactive. When set to TDLY, the B trigger is delayed in time from

the main or A trigger. The delay time is set by the TRIGger:BTRIGger:TDLY command. When

set to EDLY, the B trigger is delayed by a number of trigger events starting at the A trigger time.

The number of events to delay is set by the TRIGger:BTRIGger:ECOUNT command.

Syntax: TRIGger:BTRIGger:MODE <asc>

Argument: <asc> = {OFF, TDLY, EDLY}

Valid Modes: Pulse and gated Statistical modes only

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