L3Harris NARDA PMM ER8000 User Manual page 69

This setting command is used for creating a Frequency-Scan-Tab frequency by
SSFW n,freq
frequency. It is made of two fields as follows:
The procedure to make and use a Frequency-Scan-Tab on PMM ER8000 is the
following:
Here is an example how to make a Frequency-Scan-Tab on PMMER8000:
Note that all the higher indexes in the Frequency-Scan-Tab are cleared. Therefore, a
Frequency-Scan-Table must be made in upwards order. All points, having a higher
index previously written, are cleared.
Note that only the present frequencies will be tuned and measured as all remaining
will be completely neglected. Hence, it is responsibility of the user to make sure
the data sent are correct and coherent.
The reply is SSFW =OK which acknowledges the command has been granted or
SSFW =SERR if the command has been ignored.
This setting command stops abruptly a running sweep in Analyzer mode. The reply is
SSTP
always STP=OK, which acknowledges the command has been granted
This setting command sets MinAtt to the value indicated by (b) which range from 0dB
STAT b
to the maximum available attenuation and must be in step of 5dB. The reply is
TAT=OK which acknowledges the command has been granted or TAT=SERR if the
command has been ignored.
Example: #STAT 10*
Note: In Sweep mode the Attenuator is always forced to AUTO
SUPP n This setting command #SUPP n* outputs on the User Port bit by bit the argument n .
Each Pin has its own contribution according to its index as follows:
OUT0= 2^0
OUT1= 2^1
OUT2= 2^2
Thus, the argument sent is the sum of each weighted contribution
The reply is UPP=OK which acknowledges the command has been granted or
UPP=SERR if the command has been ignored (IE argument >31).
Example: SUPP 5 will set:
•
n Is the index of frequency being written and it should range from 0 to 99
•
freq Is the frequency, expressed in Hz (exponential notation allowed), being
written
•
Send as many commands SSFW as frequency points of table are in
upwards order.
•
Send the command SSFD with step size set to zero
•
#SSFW 0, 150e3 * Set the first freq to 150kHz
•
# SSFW 1, 500e3 * Set the second freq to 500kHz
•
# SSFW 2, 5e6* Set the third freq to 5MHz
•
# SSFW 3, 6e6* Set the fourth freq to 6MHz
•
# SSFW 4, 30e6 * Set the fifth freq to 30MHz
•
user port pins OUT0 and OUT2 to high level
•
user port pins OUT1 to low level
Remote control 7-17