channel = 1
ports_string = "1,2,3,4"
touchstone_filename = "ch1_data.s4p"
# For trace data:
trace_name = "Trc1"
trace_filename = "Trc1.csv"
# Indicate which ports you want to
# capture data for before starting sweep
# Note: This must be done for each channel
# Using channel 1 for illustrative purposes:
channel = 1
scpi = ":CALC{0}:PAR:DEF:SGR {1}"
scpi = scpi.format(channel, ports_string)
vna.write(scpi)
# Enable manual sweep mode
# (i.e. control timing)
vna.write("INIT:CONT:ALL 0")
# Start all sweeps
vna.write("INIT:SCOP ALL")
vna.write("INIT")
# Wait for sweeps to finish
# Note: Make sure timeout is long
# enough for sweeps to complete
vna.query("*OPC?")
# Save touchstone file to vna
import os
# Connect
vna = Vna()
vna.open_tcp()
channel = 1
ports = range(1, 5) # Ports 1-4
filename = "test.s2p"
# s2p file must exist locally on VNA
for port in ports:
# Set deembed model to touchstone file
scpi = "CALC{0}:TRAN:VNET:SEND:DEEM{1}:TND FIMP"
scpi = scpi.format(channel, port)
vna.write(scpi)
## Option a:
## Set via touchstone file on VNA
# scpi = "MMEM:LOAD:VNET{0}:SEND:DEEM{1} '{2}'"
# scpi = scpi.format(channel, port, filename)
# vna.write(scpi)
# Option b:
# Set via data transfer
data = open(filename, 'rb').read()
size_str = str(len(data))
header = "#{0}{1}".format(len(size_str), size_str)
scpi = "CALC{0}:TRAN:VNET:SEND:DEEM{1}:PAR:DATA FPOR,{2}{3}"
scpi = scpi.format(channel, port, header, data)
vna.write(scpi)
from rohdeschwarz.instruments.vna import Vna
# Connect
vna = Vna()
vna.open_tcp()
temp_filename = 'temp.png'
local_filename = 'screenshot.png'
# Set temporary file name to
# save to (on vna)
scpi = ":MMEM:NAME '{0}'"
scpi = scpi.format(temp_filename)
vna.write(scpi)
# Set format
# Options include:
# - BMP
# - PNG
# - JPG
# - PDF
# - SVG
vna.write(":HCOP:DEV:LANG PNG")
# Set contents of screenshot
# to entire screen
vna.write(":HCOP:PAGE:WIND HARD")
# - OR -------------------------
# Set active diagram
# Unfortunately there isn't an
# Provide this information:
ip_address = '127.0.0.1'
timeout_ms = 5 * 60 * 1000 # 5 mins
ports = range(1, 21) # VNA Ports 1-20
cal_size = 8 # Cal unit is 8 ports
# Assuming channel 1 ('SENS1')
# for simplicity's sake
# Connect to VNA
vna = Vna()
vna.open_tcp(ip_address)
# Delete any previously defined cal steps
vna.write("SENS1:CORR:COLL:AUTO:ASS:DEL:ALL")
# Setup for full N-Port calibration with cal unit
vna.write("SENS1:CORR:COLL:AUTO:CONF FNPort,''")
# get cal steps
steps = get_cal_steps(ports, cal_size)
num_steps = len(steps)
# Define each cal step via SCPI
for i in range(1, num_steps + 1):
step = [str(n) for n in steps[i]]
step = ",".join(step)
scpi = "SENS1:CORR:COLL:AUTO:ASS{0}:TPOR {1}".format(i, step)
vna.write(scpi)
#!/usr/bin/env python
from rohdeschwarz.instruments.vna import Vna
# Connect
vna = Vna()
vna.open_tcp()
# Applying example in channel 1
channel = 1
# Load cal group
# Assuming cal group called "my_cal_group"
# cal group files have .cal extension
cal_group = "my_cal_group.cal";
scpi = ":MMEM:LOAD:CORR {0}, '{1}'"
scpi = scpi.format(channel, cal_group)
vna.write(scpi);
vna.pause()
# Saving a calibration to a cal group
new_cal_group = "my_new_cal.cal"
scpi = ":MMEM:STOR:CORR {0}, '{1}'"
scpi = scpi.format(channel, new_cal_group)
vna.write(scpi);
vna.pause()
vna.close()
