manualshive.com logo in svg

Boonton 4500A, Дополнение к руководству, Страница: 6 / 7

Поделиться
Скачать
Boonton 4500A Скачать руководство пользователя страница 6

98404704A

6

TKEJD                  --        

For the currently selected measurement channel

 

returns a status flag

                                          and the time delay in seconds between the left edge of the display
                                          window and the first waveform edge of either slope. Trigger delay can
                                          be used to move the window with  respect to the trigger to select or
                                          exclude portions of a long string of  pulses. This command works only
                                          with TKAMEAS active. After returning data the instrument returns to
                                          the previous Talk mode, normally TKAMEAS.
                                          Examples: send TKAMEAS         send only once
                                                            send TKEJD              “send TKEJD read” may be repeated
                                                            read  1, 1.163e-7         valid edge delay in seconds
                                                      or   read  0, 0                     no valid result

TKMMODE       --            

Returns a measurement mode run/stop flag, mode identifier and units

                                            flag. For the run/stop flag 0 = STOP, 1 = RUN. For the mode
                                            identifier 0 = Pulse, 1 = CW

, 

2 = CDF, 3 = 1-CDF, 4 = PDF. For the

                                            units flag 0 = log (dBm) and 1 = linear (watts). After returning data
                                            the instrument returns to the previous Talk mode.
                                            Examples: send TKMMODE
                                                              read  1, 0, 0             running in pulse mode with log units
                                                         or  read  0, 3, 1             stopped in 1-CDF mode with linear
                                                                                              units

1.6  EOI Only Talk mode Terminator

In the 

Util > IEEE-488 > Bus Setup > Talk Term

 menu a new choice, 

EOI only

, has been added.

This allows return strings to be terminated only by the EOI signal of the GPIB, simplifying setup
with controllers which use this as their default.

1.7  Reference Lines in Linear Units mode

Reference Lines and Reference Line Tracking now work in the Linear as well as Logarithmic
units modes. Reference line level readout is always in dBm.

2.  CORRECTIONS

2.1  Sensor Temperature Readings

All previous versions and revisions of Model 4400/4500/4400A and 4500A report sensor
temperature approximately 10 degrees Celsius lower than the actual internal sensor temperature.
This characteristic has been of little consequence since only delta temperature values are used.

Содержание 4500A

Страница 1: ... display Units are set to Linear power will be in watts with 5 decimal digits of resolution The real number format is d ddddE dd dd dddE dd or ddd ddE dd where the positive sign is omitted and the exponent is mod 3 watts Negative power values indicate underflow of the system zero If the display units are set to Log power will be in dBm decibels relative to 1 milliwatt with a resolution of 0 01 dB ...

Страница 2: ... Returns 0 p0 p1 p2 p500 entire buffer MTA Returns 500 p500 truncated to one element Example BUFCOUNT 5 TKFPDISP 496 MTA Returns 496 p496 p497 p498 p499 p500 The source buffer is selected using the CH1 CH2 CHM REF1 and REF2 commands The units are selected using LIN or LOG TKFPDISP does not interrupt sampling and data collection while sending data For this reason buffer data will not remain stable ...

Страница 3: ...fer delimiter to carriage return BUFDELSP Set buffer delimiter to space Note The delimiters do not apply to data returned using TKFPDISP They apply only to output using DATASEND DATACOM1 Select COM1 serial port output DATADISK Select the floppy disk output with filename selected with FILENO DATALPT1 Select the printer port LPT1 for output Delimiter will affect printed format DATASOCH1 Select the C...

Страница 4: ...t is the probability of occurrence for that bin The Channel 1 count array is selected by the command SELDATTBL 8 and the Channel 2 count array by SELDATTBL 9 The array is returned by the talk mode command TK TBLDAT n where n is the starting index number The BUFCOUNT command followed by a count argument of 1 to 4096 operates as described above for the TKFPDISP command 4500A Front Panel Histogram Ou...

Страница 5: ...s the time delay between the left edge of the display window and the first waveform edge of either slope This allows the display window to be used as a mask to select or exclude portions of a waveform Trigger delay adjusts the position of the display window with respect to the trigger Edge Delay should be added as item 15 in Table 4 19 It appears as a selection in the Meas Param Meas Param Top Mid...

Страница 6: ...s flag 0 log dBm and 1 linear watts After returning data the instrument returns to the previous Talk mode Examples send TKMMODE read 1 0 0 running in pulse mode with log units or read 0 3 1 stopped in 1 CDF mode with linear units 1 6 EOI Only Talk mode Terminator In the Util IEEE 488 Bus Setup Talk Term menu a new choice EOI only has been added This allows return strings to be terminated only by t...

Страница 7: ...ation will resume if the menu selection or a GPIB measure mode command is sent This revision 20010119 corrects the error and under the above conditions statistical measurements will resume automatically at power up 2 3 Inability to use request for service SRQ on settled measurement in CW mode with averaging 1 In all previous revisions in CW measurement mode with the SRQ mask set to 2 no service re...

Отзывы:

Нет отзывов