Boonton 4530 Peak Power Meter Service Manual - Manual (Page 35)

BOONTON ELECTRONICS a WIRELESS TELECOM GROUP COMPANY
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The following is a properly composed string to be sent to a sensor:
RD-S-SLOW 2,0.50,18.00,0.00,0.00,0.50,0.15,1.00,0.00,2.00,0.23,3.00,0.34,4.00,
0.45,5.00,0.73,6.00,0.60,7.00,0.65,8.00,0.68,9.00,0.73,10.00,0.70,11.00,0.79,
12.00,0.99,13.00,1.20,14.00,1.44,15.00,1.59,16.00,1.46,17.00,1.24,18.00,0.78
(CR)(LF)
After the string has been sent to the instrument, wait at least two seconds for the data to be written to the
EEPROM before sending any other data over the GPIB.
CALIBRATION FACTORS FOR HIGH BANDWIDTH MODE
This data is the frequency and associated calibration factors that the Peak Power Meter uses when in the
High Bandwidth Mode.
This data may be recalled from the sensor by using the Talk Mode Bus Mnemonic TKSFAST. The string
returned from the instrument will have the following format:
Count, Bottom of Frequency Range, Top of Frequency Range, Freq0, CF0, Freq1,
CF1, … Freq(n), CF(n)
The count is the total number of data elements in the string following the count, which include the bottom
and top of the frequency range, a Frequency of 0 with a associated Calibration Factor of 0, and each
Frequency and Calibration Factor separately. The maximum count is 124 numbers or 60 frequency
points.
The Frequencies MUST be entered in order from the lowest to the highest. The instrument will not
tolerate a frequency out of order or out of range and will terminate data entry.
Frequencies are valid if they are within the specified frequency range and have a format of ##.## with the
implied units of GHz. Calibration Factors are valid if they are in the range of +/- 3.00 with the implied units
of dB.
The Bus Mnemonic to load Calibration Factors for Low Bandwidth into the sensor is RD-S-FAST followed
by an ASCII space (SP) followed by the data string. Commas separate the various elements of the data
string. The mnemonic and data string cannot contain any embedded terminators (carriage return (CR)
and line feed (LF)) before the end.
The following is a properly composed string to be sent to a sensor:
RD-S-FAST 42,0.50,18.00,0.00,0.00,0.50,-0.15,1.00,0.00,2.00,0.23,3.00,0.34,
4.00,0.45,5.00,0.73,6.00,0.60,7.00,0.65,8.00,0.68,9.00,0.73,10.00,0.70,11.00,
0.79,12.00,0.99,13.00,1.20,14.00,1.44,15.00,1.59,16.00,1.46,17.00,1.24, 18.00,
0.78(CR)(LF)
After the string has been sent to the instrument, wait at least two seconds for the data to be written to the
EEPROM before sending any other data over the GPIB.
ADJUSTING CAL FACTORS
The easiest way to modify existing calibration factors is to use TKSSLOW to read the existing string into a
buffer, modify the cal factors with a text editor, then send the modified string back to the sensor by
prefixing the command RD-S-SLOW. Repeat the same process for TKSFAST/RD-S-FAST, or transmit
the edited “slow” string to replace the “fast” data as well.