BOONTON ELECTRONICS
a Wireless Telecom Group Company
4400A/4500A MANUAL ADDENDUM
Applies to Instruction Manual Model 4500A RF Peak Power Meter /Analyzer, Model 4400A RF Peak Power
Meter, Part Number 98404700A, revised 09/97.
Effective for Control Software Revision 20020511 and later.
1.0 NEW FEATURES
1.1 Peak Sensor Temperature Compensation
When used with a peak sensor that contains a valid temperature compensation table, the
model 4400A and 4500A Peak Power Meters can provide temperature compensated
power measurements. The default mode for temperature compensation is active. The
Chan n > Calibration>Temp Comp menu box will be visible with “Sensor Tbl”
displayed. To turn off temperature compensation press the menu button and “Off” will be
displayed. The “Off” setting is volatile and not preserved through power cycles or major
mode changes. If the sensor in use does not have a temperature compensation table the
Temp Comp menu box will not appear at all.
The Spcl>Chan n Sensor report will include the message “Sensor has Temperature
Compensation Table” when appropriate. The Spcl>Servicing>Configuration report
shows TC system status if either channel has a sensor with a valid table. The format of
this message
if present is:
TC System Status 1:[err code] #### 2:[err code] ####
The error codes are:
0 No error.
145 TC # of Temps Err Table parameter error
146 TC # of Powers Err Table parameter error
147 TC Interp Err Table interpolation error
148 TC Expand Err Table expansion error
149 TC Extend Err Table extension error
150 TC Chksum Err Table read checksum error
151 TC Table Length Error
152 TC Temp Value Err A temperature value is out of range
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153 TC Temp Non-mono A temperature array is non-monotonic
154 TC Power Value Err A power value is out of range
155 TC Power Non-mono A power array is non-monotonic
156 TC Corr Value Err A correction value is out of range
Use CH1 or CH2 to specify to which channel the following temperature compensation
related GPIB commands apply:
TCON Turn on temperature compensation if available. If not, ignore.
TCOFF Turn off temperature compensation. This is a volatile setting if
compensation is available.
1.2 Sensor Auto-calibration File Retention
Sensor auto-calibration files are now saved by channel as .AC1 and .AC2 files in nonvolatile (flash) memory. This avoids the need to perform auto-cal every time a sensor is
removed and replaced by a different one, provided the sensors are known to the
channel(s) involved. When a sensor is plugged-in a search is made to find an existing
auto-cal file. If one is found, it is installed. If not, the “Needs Auto-cal” message will
appear. When auto-cal is performed the existing file is overwritten with the new result. If
no previous file exists, one is created. Sensor filenames have the form SEN#####.AC n,
where ##### is the serial number and n is the channel number.
The file directory system is expanded to display auto-calibration files in flash memory as
well as the previous files on the floppy disk. The Utility>Disk>Flash Disk path lists
sensor auto-cal files by channel. The Select File <> menu contains a sequence number
which refers to the position of the file in the list. The selected file is shown in RED and
may be deleted by pressing the menu button next to the “Delete” box. Deletion of files
must be confirmed or cancelled.
There are no GPIB operations on the file directory.
1.3 Color *.bmp File of Display
The Hardcopy section now includes a color *.bmp file of the current display that can be
saved to the floppy disk, sent to the COM1 port or the GPIB. To select this feature set the
Util>Hardcopy>Device menu to “Plotter”. Then select Util>Hardcopy>Model “.BMP”.
Choose the Plot Label, Output Port and File Select number if the output is the floppy
disk. Graph & Text is not applicable. Note that the “IEEE-488” output selection applies
to the listen only (lon) GPIB addressing mode only. For controller directed GPIB output
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