Tektronix Instruments

import pyvisa

rm = pyvisa.ResourceManager()

# USB
scope = rm.open_resource("USB0::0x0699::0x0363::C102912::INSTR")

# Ethernet
# scope = rm.open_resource("TCPIP0::192.168.1.100::inst0::INSTR")

# GPIB
# scope = rm.open_resource("GPIB0::1::INSTR")

scope.timeout = 10000  # 10 s (Tektronix instruments often need longer)
print(scope.query("*IDN?").strip())

scope.write("*RST")
scope.write("*CLS")

import pyvisa
import numpy as np
import time

rm = pyvisa.ResourceManager()
scope = rm.open_resource("TCPIP0::192.168.1.100::inst0::INSTR")
scope.timeout = 10000

# Binary encoding for fast transfer
scope.write("DAT:ENC RIB")
scope.write("DAT:WID 2")      # 16-bit samples
scope.write("DAT:SOU CH1")

# Horizontal and vertical
scope.write("HOR:SCA 1e-6")   # 1 us/div
scope.write("CH1:SCA 0.5")    # 500 mV/div

# Trigger
scope.write("TRIG:MAI:TYP EDGE")
scope.write("TRIG:MAI:EDGE:SOU CH1")
scope.write("TRIG:MAI:LEV 0.1")
scope.write("TRIG:MAI:EDGE:SLO RISE")

# Single acquisition
scope.write("ACQ:MODE SAM")
scope.write("ACQ:STOPA SEQ")
scope.write("ACQ:STATE RUN")

# Wait for trigger
start = time.time()
while time.time() - start < 30:
    if scope.query("ACQ:STATE?").strip() == "0":
        break
    time.sleep(0.1)

# Read preamble for scaling
preamble = scope.query("WFMP?").split(",")
y_scale = float(preamble[13])
y_offset = float(preamble[14])
x_scale = float(preamble[9])

# Binary transfer
raw = scope.query_binary_values("CURV?", datatype="h")
voltages = (np.array(raw) - y_offset) * y_scale
time_axis = np.arange(len(raw)) * x_scale

print(f"Captured {len(raw)} points")

scope.close()
rm.close()

# After acquisition completes
scope.write("MEASU:MEAS1:TYP FREQ")
scope.write("MEASU:MEAS1:SOU CH1")
freq = float(scope.query("MEASU:MEAS1:VAL?"))

scope.write("MEASU:MEAS2:TYP AMP")
scope.write("MEASU:MEAS2:SOU CH1")
amp = float(scope.query("MEASU:MEAS2:VAL?"))

scope.write("MEASU:MEAS3:TYP RMS")
scope.write("MEASU:MEAS3:SOU CH1")
rms = float(scope.query("MEASU:MEAS3:VAL?"))

print(f"Frequency: {freq:.1f} Hz, Amplitude: {amp:.3f} V, RMS: {rms:.3f} V")

import pyvisa

rm = pyvisa.ResourceManager()
afg = rm.open_resource("USB0::0x0699::0x0346::C012345::INSTR")
afg.timeout = 5000

afg.write("*RST")

# 1 kHz sine, 2 Vpp, 0.5 V offset
afg.write("SOUR1:FUNC:SHAP SIN")
afg.write("SOUR1:FREQ 1000")
afg.write("SOUR1:VOLT:AMPL 2.0")
afg.write("SOUR1:VOLT:OFFS 0.5")
afg.write("OUTP1:STAT ON")

print("Output enabled: 1 kHz sine, 2 Vpp")

# Burst mode: 10 cycles per trigger
afg.write("SOUR1:BURS:STAT ON")
afg.write("SOUR1:BURS:MODE TRIG")
afg.write("SOUR1:BURS:NCYC 10")

# Frequency sweep: 100 Hz to 10 kHz over 5 s
afg.write("SOUR1:BURS:STAT OFF")
afg.write("SOUR1:SWE:STAT ON")
afg.write("SOUR1:FREQ:START 100")
afg.write("SOUR1:FREQ:STOP 10000")
afg.write("SOUR1:SWE:TIME 5.0")

afg.close()
rm.close()

import pyvisa
import numpy as np

rm = pyvisa.ResourceManager()
rsa = rm.open_resource("TCPIP0::192.168.1.100::inst0::INSTR")
rsa.timeout = 30000

rsa.write("*RST")
rsa.write("INIT:CONT OFF")  # Single sweep

# 1 GHz center, 100 MHz span, 1 MHz RBW
rsa.write("FREQ:CENT 1e9")
rsa.write("FREQ:SPAN 100e6")
rsa.write("BAND:RES 1e6")
rsa.write("DET:TRAC:FUNC AVER")

# Sweep
rsa.write("INIT:IMM")
rsa.query("*OPC?")

# Read trace
rsa.write("TRAC:DATA? TRACE1")
spectrum = rsa.read_binary_values("f")

center = float(rsa.query("FREQ:CENT?"))
span = float(rsa.query("FREQ:SPAN?"))
freqs = np.linspace(center - span / 2, center + span / 2, len(spectrum))

peak_idx = np.argmax(spectrum)
print(f"Peak: {freqs[peak_idx]/1e6:.1f} MHz at {spectrum[peak_idx]:.1f} dBm")

rsa.close()
rm.close()