pyinst: fsp7_phasenoise.py annotate

annotate fsp7_phasenoise.py @ 81:1947d10f9395

- Search for signal frequency iteratively to improve accuracy. - Use narrower bandwidths (via FFT filter) for close in measurements. - Work around bug in firmware when using FFT filter. - Actually _raise_ the exception when the signal power is too low.

author	Daniel O'Connor <doconnor@gsoft.com.au>
date	Fri, 27 Sep 2024 16:56:44 +0930
parents	23c96322cfb6
children	6ce8ed5ba76d

rev	line source
74 b6ebe05f250f Add some commentry about what it works with Daniel O'Connor <doconnor@gsoft.com.au> parents: diff changeset	1 #!/usr/bin/env python
b6ebe05f250f Add some commentry about what it works with Daniel O'Connor <doconnor@gsoft.com.au> parents: diff changeset	2
76 e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	3 # Copyright (c) 2024
74 b6ebe05f250f Add some commentry about what it works with Daniel O'Connor <doconnor@gsoft.com.au> parents: diff changeset	4 # Daniel O'Connor <darius@dons.net.au>. All rights reserved.
b6ebe05f250f Add some commentry about what it works with Daniel O'Connor <doconnor@gsoft.com.au> parents: diff changeset	5 #
b6ebe05f250f Add some commentry about what it works with Daniel O'Connor <doconnor@gsoft.com.au> parents: diff changeset	6 # Redistribution and use in source and binary forms, with or without
b6ebe05f250f Add some commentry about what it works with Daniel O'Connor <doconnor@gsoft.com.au> parents: diff changeset	7 # modification, are permitted provided that the following conditions
b6ebe05f250f Add some commentry about what it works with Daniel O'Connor <doconnor@gsoft.com.au> parents: diff changeset	8 # are met:
b6ebe05f250f Add some commentry about what it works with Daniel O'Connor <doconnor@gsoft.com.au> parents: diff changeset	9 # 1. Redistributions of source code must retain the above copyright
b6ebe05f250f Add some commentry about what it works with Daniel O'Connor <doconnor@gsoft.com.au> parents: diff changeset	10 # notice, this list of conditions and the following disclaimer.
b6ebe05f250f Add some commentry about what it works with Daniel O'Connor <doconnor@gsoft.com.au> parents: diff changeset	11 # 2. Redistributions in binary form must reproduce the above copyright
b6ebe05f250f Add some commentry about what it works with Daniel O'Connor <doconnor@gsoft.com.au> parents: diff changeset	12 # notice, this list of conditions and the following disclaimer in the
b6ebe05f250f Add some commentry about what it works with Daniel O'Connor <doconnor@gsoft.com.au> parents: diff changeset	13 # documentation and/or other materials provided with the distribution.
b6ebe05f250f Add some commentry about what it works with Daniel O'Connor <doconnor@gsoft.com.au> parents: diff changeset	14 #
b6ebe05f250f Add some commentry about what it works with Daniel O'Connor <doconnor@gsoft.com.au> parents: diff changeset	15 # THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
b6ebe05f250f Add some commentry about what it works with Daniel O'Connor <doconnor@gsoft.com.au> parents: diff changeset	16 # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
b6ebe05f250f Add some commentry about what it works with Daniel O'Connor <doconnor@gsoft.com.au> parents: diff changeset	17 # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
b6ebe05f250f Add some commentry about what it works with Daniel O'Connor <doconnor@gsoft.com.au> parents: diff changeset	18 # ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
b6ebe05f250f Add some commentry about what it works with Daniel O'Connor <doconnor@gsoft.com.au> parents: diff changeset	19 # FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
b6ebe05f250f Add some commentry about what it works with Daniel O'Connor <doconnor@gsoft.com.au> parents: diff changeset	20 # DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
b6ebe05f250f Add some commentry about what it works with Daniel O'Connor <doconnor@gsoft.com.au> parents: diff changeset	21 # OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
b6ebe05f250f Add some commentry about what it works with Daniel O'Connor <doconnor@gsoft.com.au> parents: diff changeset	22 # HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
b6ebe05f250f Add some commentry about what it works with Daniel O'Connor <doconnor@gsoft.com.au> parents: diff changeset	23 # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
b6ebe05f250f Add some commentry about what it works with Daniel O'Connor <doconnor@gsoft.com.au> parents: diff changeset	24 # OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
b6ebe05f250f Add some commentry about what it works with Daniel O'Connor <doconnor@gsoft.com.au> parents: diff changeset	25 # SUCH DAMAGE.
b6ebe05f250f Add some commentry about what it works with Daniel O'Connor <doconnor@gsoft.com.au> parents: diff changeset	26 #
b6ebe05f250f Add some commentry about what it works with Daniel O'Connor <doconnor@gsoft.com.au> parents: diff changeset	27
b6ebe05f250f Add some commentry about what it works with Daniel O'Connor <doconnor@gsoft.com.au> parents: diff changeset	28 import argparse
b6ebe05f250f Add some commentry about what it works with Daniel O'Connor <doconnor@gsoft.com.au> parents: diff changeset	29 import math
81 1947d10f9395 - Search for signal frequency iteratively to improve accuracy. Daniel O'Connor <doconnor@gsoft.com.au> parents: 77 diff changeset	30 import misc
74 b6ebe05f250f Add some commentry about what it works with Daniel O'Connor <doconnor@gsoft.com.au> parents: diff changeset	31 import numpy
76 e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	32 import os
e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	33 import PIL
74 b6ebe05f250f Add some commentry about what it works with Daniel O'Connor <doconnor@gsoft.com.au> parents: diff changeset	34 import rsib
b6ebe05f250f Add some commentry about what it works with Daniel O'Connor <doconnor@gsoft.com.au> parents: diff changeset	35 import scipy
b6ebe05f250f Add some commentry about what it works with Daniel O'Connor <doconnor@gsoft.com.au> parents: diff changeset	36 import scpi
b6ebe05f250f Add some commentry about what it works with Daniel O'Connor <doconnor@gsoft.com.au> parents: diff changeset	37 import sys
76 e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	38 import time
74 b6ebe05f250f Add some commentry about what it works with Daniel O'Connor <doconnor@gsoft.com.au> parents: diff changeset	39
76 e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	40 def setupsweep(r, rbw, vbw, centre = None, span = None, start = None, stop = None):
e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	41 '''Helper function to set various sweep parameters'''
e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	42 if centre is not None:
e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	43 r.write('SENSE1:FREQ:CENT %f Hz' % (centre))
e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	44 if span is not None:
e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	45 r.write('SENSE1:FREQ:SPAN %f Hz' % (span))
e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	46 if start is not None:
e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	47 r.write('SENSE1:FREQ:START %f Hz' % (start))
e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	48 if stop is not None:
e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	49 r.write('SENSE1:FREQ:STOP %f Hz' % (stop))
e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	50 if rbw is not None:
81 1947d10f9395 - Search for signal frequency iteratively to improve accuracy. Daniel O'Connor <doconnor@gsoft.com.au> parents: 77 diff changeset	51 # Need to use FFT filters below 10Hz BW
1947d10f9395 - Search for signal frequency iteratively to improve accuracy. Daniel O'Connor <doconnor@gsoft.com.au> parents: 77 diff changeset	52 if rbw < 10:
1947d10f9395 - Search for signal frequency iteratively to improve accuracy. Daniel O'Connor <doconnor@gsoft.com.au> parents: 77 diff changeset	53 r.write('BAND:TYPE FFT')
1947d10f9395 - Search for signal frequency iteratively to improve accuracy. Daniel O'Connor <doconnor@gsoft.com.au> parents: 77 diff changeset	54 else:
1947d10f9395 - Search for signal frequency iteratively to improve accuracy. Daniel O'Connor <doconnor@gsoft.com.au> parents: 77 diff changeset	55 r.write('BAND:TYPE NORM')
76 e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	56 r.write('SENS1:BAND:RES %f Hz' % (rbw))
e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	57 if vbw is not None:
e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	58 r.write('SENS1:BAND:VID %f Hz' % (vbw))
74 b6ebe05f250f Add some commentry about what it works with Daniel O'Connor <doconnor@gsoft.com.au> parents: diff changeset	59
b6ebe05f250f Add some commentry about what it works with Daniel O'Connor <doconnor@gsoft.com.au> parents: diff changeset	60 def dosweep(r, sweeps):
76 e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	61 '''Helper function to trigger a sweep and wait for it to finish'''
81 1947d10f9395 - Search for signal frequency iteratively to improve accuracy. Daniel O'Connor <doconnor@gsoft.com.au> parents: 77 diff changeset	62 tout = getsweeptime(r) * 5 * sweeps
74 b6ebe05f250f Add some commentry about what it works with Daniel O'Connor <doconnor@gsoft.com.au> parents: diff changeset	63 if tout < 1:
b6ebe05f250f Add some commentry about what it works with Daniel O'Connor <doconnor@gsoft.com.au> parents: diff changeset	64 tout = 1
b6ebe05f250f Add some commentry about what it works with Daniel O'Connor <doconnor@gsoft.com.au> parents: diff changeset	65 #print('Sweep time', swt)
b6ebe05f250f Add some commentry about what it works with Daniel O'Connor <doconnor@gsoft.com.au> parents: diff changeset	66
b6ebe05f250f Add some commentry about what it works with Daniel O'Connor <doconnor@gsoft.com.au> parents: diff changeset	67 # Trigger the sweep
b6ebe05f250f Add some commentry about what it works with Daniel O'Connor <doconnor@gsoft.com.au> parents: diff changeset	68 r.write('INIT;*WAI')
b6ebe05f250f Add some commentry about what it works with Daniel O'Connor <doconnor@gsoft.com.au> parents: diff changeset	69
b6ebe05f250f Add some commentry about what it works with Daniel O'Connor <doconnor@gsoft.com.au> parents: diff changeset	70 # Wait for it to be done
b6ebe05f250f Add some commentry about what it works with Daniel O'Connor <doconnor@gsoft.com.au> parents: diff changeset	71 opc = int(r.ask('*OPC?', timeout = tout))
b6ebe05f250f Add some commentry about what it works with Daniel O'Connor <doconnor@gsoft.com.au> parents: diff changeset	72 assert(opc == 1)
b6ebe05f250f Add some commentry about what it works with Daniel O'Connor <doconnor@gsoft.com.au> parents: diff changeset	73
76 e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	74 def findpeaks(r, maxpeak = 5, minpwr = None):
e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	75 '''Ask instrument to find maxpeaks peaks and return a list of frequencies and powers'''
e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	76 peaks_f = []
e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	77 peaks_pwr = []
e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	78 r.write('CALC:MARK1:MAX')
e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	79 for i in range(maxpeak):
e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	80 frq = float(r.ask('CALC:MARK1:X?'))
e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	81 pwr = float(r.ask('CALC:MARK1:Y?'))
e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	82 if minpwr is not None and pwr < minpwr:
e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	83 break
e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	84 if i > 0:
e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	85 if frq == peaks_f[i - 1]:
e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	86 break
e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	87 peaks_f.append(frq)
e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	88 peaks_pwr.append(pwr)
e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	89 r.write('CALC:MARK1:MAX:NEXT')
74 b6ebe05f250f Add some commentry about what it works with Daniel O'Connor <doconnor@gsoft.com.au> parents: diff changeset	90
76 e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	91 return peaks_f, peaks_pwr
e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	92
81 1947d10f9395 - Search for signal frequency iteratively to improve accuracy. Daniel O'Connor <doconnor@gsoft.com.au> parents: 77 diff changeset	93 def getsweeptime(r):
1947d10f9395 - Search for signal frequency iteratively to improve accuracy. Daniel O'Connor <doconnor@gsoft.com.au> parents: 77 diff changeset	94 '''Return sweep time in seconds'''
1947d10f9395 - Search for signal frequency iteratively to improve accuracy. Daniel O'Connor <doconnor@gsoft.com.au> parents: 77 diff changeset	95 # According to the manual SWE:TIME works for both normal and FFT filters
1947d10f9395 - Search for signal frequency iteratively to improve accuracy. Daniel O'Connor <doconnor@gsoft.com.au> parents: 77 diff changeset	96 # however in practise it doesn't get a response for FFT ones so we fake it
1947d10f9395 - Search for signal frequency iteratively to improve accuracy. Daniel O'Connor <doconnor@gsoft.com.au> parents: 77 diff changeset	97
1947d10f9395 - Search for signal frequency iteratively to improve accuracy. Daniel O'Connor <doconnor@gsoft.com.au> parents: 77 diff changeset	98 if r.ask('BAND:TYPE?').decode('ascii') == 'FFT':
1947d10f9395 - Search for signal frequency iteratively to improve accuracy. Daniel O'Connor <doconnor@gsoft.com.au> parents: 77 diff changeset	99 return 5
1947d10f9395 - Search for signal frequency iteratively to improve accuracy. Daniel O'Connor <doconnor@gsoft.com.au> parents: 77 diff changeset	100 else:
1947d10f9395 - Search for signal frequency iteratively to improve accuracy. Daniel O'Connor <doconnor@gsoft.com.au> parents: 77 diff changeset	101 return float(r.ask('SWE:TIME?'))
1947d10f9395 - Search for signal frequency iteratively to improve accuracy. Daniel O'Connor <doconnor@gsoft.com.au> parents: 77 diff changeset	102
76 e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	103 def phasenoise(r, nominal, sweeps, atten, rlev, yscale, ssprefix):
e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	104 '''Main function to find a signal, do some phase noise measurements and wideband sweeps'''
74 b6ebe05f250f Add some commentry about what it works with Daniel O'Connor <doconnor@gsoft.com.au> parents: diff changeset	105 cpwrlim = -30
b6ebe05f250f Add some commentry about what it works with Daniel O'Connor <doconnor@gsoft.com.au> parents: diff changeset	106 measurements = (
81 1947d10f9395 - Search for signal frequency iteratively to improve accuracy. Daniel O'Connor <doconnor@gsoft.com.au> parents: 77 diff changeset	107 { 'offset' : 10, 'span' : 100, 'rbw' : 1, 'vbw' : 3 },
1947d10f9395 - Search for signal frequency iteratively to improve accuracy. Daniel O'Connor <doconnor@gsoft.com.au> parents: 77 diff changeset	108 { 'offset' : 100, 'span' : 250, 'rbw' : 1, 'vbw' : 3 },
1947d10f9395 - Search for signal frequency iteratively to improve accuracy. Daniel O'Connor <doconnor@gsoft.com.au> parents: 77 diff changeset	109 { 'offset' : 1e3, 'span' : 2.5e3, 'rbw' : 1, 'vbw' : 3 },
76 e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	110 { 'offset' : 10e3, 'span' : 25e3, 'rbw' : 100, 'vbw' : 300 },
e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	111 { 'offset' : 100e3, 'span' : 250e3, 'rbw' : 100, 'vbw' : 300 },
e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	112 { 'offset' : 1e6, 'span' : 2.1e6, 'rbw' : 1e3, 'vbw' : 3e3 },
74 b6ebe05f250f Add some commentry about what it works with Daniel O'Connor <doconnor@gsoft.com.au> parents: diff changeset	113 )
b6ebe05f250f Add some commentry about what it works with Daniel O'Connor <doconnor@gsoft.com.au> parents: diff changeset	114 # Reset to defaults
b6ebe05f250f Add some commentry about what it works with Daniel O'Connor <doconnor@gsoft.com.au> parents: diff changeset	115 r.write('*RST')
81 1947d10f9395 - Search for signal frequency iteratively to improve accuracy. Daniel O'Connor <doconnor@gsoft.com.au> parents: 77 diff changeset	116 r.write('*CLS')
74 b6ebe05f250f Add some commentry about what it works with Daniel O'Connor <doconnor@gsoft.com.au> parents: diff changeset	117
b6ebe05f250f Add some commentry about what it works with Daniel O'Connor <doconnor@gsoft.com.au> parents: diff changeset	118 # Set to single sweep mode
b6ebe05f250f Add some commentry about what it works with Daniel O'Connor <doconnor@gsoft.com.au> parents: diff changeset	119 r.write('INIT:CONT OFF')
b6ebe05f250f Add some commentry about what it works with Daniel O'Connor <doconnor@gsoft.com.au> parents: diff changeset	120
b6ebe05f250f Add some commentry about what it works with Daniel O'Connor <doconnor@gsoft.com.au> parents: diff changeset	121 # Enable display updates
b6ebe05f250f Add some commentry about what it works with Daniel O'Connor <doconnor@gsoft.com.au> parents: diff changeset	122 r.write('SYST:DISP:UPD ON')
b6ebe05f250f Add some commentry about what it works with Daniel O'Connor <doconnor@gsoft.com.au> parents: diff changeset	123
b6ebe05f250f Add some commentry about what it works with Daniel O'Connor <doconnor@gsoft.com.au> parents: diff changeset	124 # Set attenuation
76 e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	125 if atten is None:
e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	126 r.write('INP:ATT AUTO')
e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	127 else:
e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	128 r.write('INP:ATT %s' % atten)
e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	129
e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	130 # Set Y scale
e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	131 if yscale is not None:
e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	132 r.write('DISP:TRAC:Y %s dB' % (yscale))
e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	133
e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	134 # Set reference level
e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	135 if rlev is None:
e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	136 r.write('DISP:WIND:TRAC:Y:RLEV AUTO')
e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	137 else:
e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	138 r.write('DISP:WIND:TRAC:Y:RLEV %f' % (rlev))
74 b6ebe05f250f Add some commentry about what it works with Daniel O'Connor <doconnor@gsoft.com.au> parents: diff changeset	139
b6ebe05f250f Add some commentry about what it works with Daniel O'Connor <doconnor@gsoft.com.au> parents: diff changeset	140 #
81 1947d10f9395 - Search for signal frequency iteratively to improve accuracy. Daniel O'Connor <doconnor@gsoft.com.au> parents: 77 diff changeset	141 # Look from 100kHz down to 100Hz to narrow down the exact frequency
74 b6ebe05f250f Add some commentry about what it works with Daniel O'Connor <doconnor@gsoft.com.au> parents: diff changeset	142 #
81 1947d10f9395 - Search for signal frequency iteratively to improve accuracy. Daniel O'Connor <doconnor@gsoft.com.au> parents: 77 diff changeset	143 found = False
1947d10f9395 - Search for signal frequency iteratively to improve accuracy. Daniel O'Connor <doconnor@gsoft.com.au> parents: 77 diff changeset	144 cmeas = nominal
1947d10f9395 - Search for signal frequency iteratively to improve accuracy. Daniel O'Connor <doconnor@gsoft.com.au> parents: 77 diff changeset	145 for idx, span in enumerate((100e3, 10e3, 1e3, 100)):
1947d10f9395 - Search for signal frequency iteratively to improve accuracy. Daniel O'Connor <doconnor@gsoft.com.au> parents: 77 diff changeset	146 setupsweep(r, span / 50, span / 50 * 3, centre = cmeas, span = span)
1947d10f9395 - Search for signal frequency iteratively to improve accuracy. Daniel O'Connor <doconnor@gsoft.com.au> parents: 77 diff changeset	147 print('Looking for signal at %s+/-%s (%.1f seconds)' % (
1947d10f9395 - Search for signal frequency iteratively to improve accuracy. Daniel O'Connor <doconnor@gsoft.com.au> parents: 77 diff changeset	148 misc.sifmt(nominal), misc.sifmt(span, dp = 1),
1947d10f9395 - Search for signal frequency iteratively to improve accuracy. Daniel O'Connor <doconnor@gsoft.com.au> parents: 77 diff changeset	149 getsweeptime(r)))
1947d10f9395 - Search for signal frequency iteratively to improve accuracy. Daniel O'Connor <doconnor@gsoft.com.au> parents: 77 diff changeset	150 # Do the sweep
1947d10f9395 - Search for signal frequency iteratively to improve accuracy. Daniel O'Connor <doconnor@gsoft.com.au> parents: 77 diff changeset	151 dosweep(r, 1)
74 b6ebe05f250f Add some commentry about what it works with Daniel O'Connor <doconnor@gsoft.com.au> parents: diff changeset	152
81 1947d10f9395 - Search for signal frequency iteratively to improve accuracy. Daniel O'Connor <doconnor@gsoft.com.au> parents: 77 diff changeset	153 # Check the instrument is happy
1947d10f9395 - Search for signal frequency iteratively to improve accuracy. Daniel O'Connor <doconnor@gsoft.com.au> parents: 77 diff changeset	154 status = int(r.ask('STAT:QUES:COND?'))
1947d10f9395 - Search for signal frequency iteratively to improve accuracy. Daniel O'Connor <doconnor@gsoft.com.au> parents: 77 diff changeset	155 pwrstat = int(r.ask('STAT:QUES:POW:COND?'))
1947d10f9395 - Search for signal frequency iteratively to improve accuracy. Daniel O'Connor <doconnor@gsoft.com.au> parents: 77 diff changeset	156 if status != 0 or pwrstat != 0:
1947d10f9395 - Search for signal frequency iteratively to improve accuracy. Daniel O'Connor <doconnor@gsoft.com.au> parents: 77 diff changeset	157 # Dump a screenshot for debugging
1947d10f9395 - Search for signal frequency iteratively to improve accuracy. Daniel O'Connor <doconnor@gsoft.com.au> parents: 77 diff changeset	158 screenshot(r, '%s-sweep-inst-warnings.png' % (ssprefix))
1947d10f9395 - Search for signal frequency iteratively to improve accuracy. Daniel O'Connor <doconnor@gsoft.com.au> parents: 77 diff changeset	159 raise Exception('Instrument warning, status %s power status %s' %
1947d10f9395 - Search for signal frequency iteratively to improve accuracy. Daniel O'Connor <doconnor@gsoft.com.au> parents: 77 diff changeset	160 (bin(status), bin(pwrstat)))
1947d10f9395 - Search for signal frequency iteratively to improve accuracy. Daniel O'Connor <doconnor@gsoft.com.au> parents: 77 diff changeset	161 # Find the peak
1947d10f9395 - Search for signal frequency iteratively to improve accuracy. Daniel O'Connor <doconnor@gsoft.com.au> parents: 77 diff changeset	162 r.write('CALC:MARK1 ON')
1947d10f9395 - Search for signal frequency iteratively to improve accuracy. Daniel O'Connor <doconnor@gsoft.com.au> parents: 77 diff changeset	163 r.write('CALC:MARK1:MAX')
1947d10f9395 - Search for signal frequency iteratively to improve accuracy. Daniel O'Connor <doconnor@gsoft.com.au> parents: 77 diff changeset	164 cpwr = float(r.ask('CALC:MARK1:Y?'))
1947d10f9395 - Search for signal frequency iteratively to improve accuracy. Daniel O'Connor <doconnor@gsoft.com.au> parents: 77 diff changeset	165 if cpwr < cpwrlim:
1947d10f9395 - Search for signal frequency iteratively to improve accuracy. Daniel O'Connor <doconnor@gsoft.com.au> parents: 77 diff changeset	166 # Dump a screenshot for debugging
1947d10f9395 - Search for signal frequency iteratively to improve accuracy. Daniel O'Connor <doconnor@gsoft.com.au> parents: 77 diff changeset	167 screenshot(r, '%s-sweep-no-power.png' % (ssprefix))
1947d10f9395 - Search for signal frequency iteratively to improve accuracy. Daniel O'Connor <doconnor@gsoft.com.au> parents: 77 diff changeset	168 raise Exception('Power too low / not found: %.1f dBm vs %.1f dBm' % (cpwr, cpwrlim))
1947d10f9395 - Search for signal frequency iteratively to improve accuracy. Daniel O'Connor <doconnor@gsoft.com.au> parents: 77 diff changeset	169 else:
1947d10f9395 - Search for signal frequency iteratively to improve accuracy. Daniel O'Connor <doconnor@gsoft.com.au> parents: 77 diff changeset	170 found = True
1947d10f9395 - Search for signal frequency iteratively to improve accuracy. Daniel O'Connor <doconnor@gsoft.com.au> parents: 77 diff changeset	171 cmeas = float(r.ask('CALC:MARK1:X?'))
1947d10f9395 - Search for signal frequency iteratively to improve accuracy. Daniel O'Connor <doconnor@gsoft.com.au> parents: 77 diff changeset	172 print('Found signal at %s with power %.1f dBm' % (misc.sifmt(cmeas, dp = 6), cpwr))
74 b6ebe05f250f Add some commentry about what it works with Daniel O'Connor <doconnor@gsoft.com.au> parents: diff changeset	173
81 1947d10f9395 - Search for signal frequency iteratively to improve accuracy. Daniel O'Connor <doconnor@gsoft.com.au> parents: 77 diff changeset	174 if not found:
1947d10f9395 - Search for signal frequency iteratively to improve accuracy. Daniel O'Connor <doconnor@gsoft.com.au> parents: 77 diff changeset	175 print('Unable to find signal')
76 e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	176 # Centre peak
e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	177 r.write('CALC:MARK1:FUNC:CENT')
74 b6ebe05f250f Add some commentry about what it works with Daniel O'Connor <doconnor@gsoft.com.au> parents: diff changeset	178
b6ebe05f250f Add some commentry about what it works with Daniel O'Connor <doconnor@gsoft.com.au> parents: diff changeset	179 # Set number of sweeps
b6ebe05f250f Add some commentry about what it works with Daniel O'Connor <doconnor@gsoft.com.au> parents: diff changeset	180 r.write('SWE:COUN %d' % (sweeps))
b6ebe05f250f Add some commentry about what it works with Daniel O'Connor <doconnor@gsoft.com.au> parents: diff changeset	181
b6ebe05f250f Add some commentry about what it works with Daniel O'Connor <doconnor@gsoft.com.au> parents: diff changeset	182 # Enable phase noise measurement
76 e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	183 r.write('CALC:MARK:AOFF')
74 b6ebe05f250f Add some commentry about what it works with Daniel O'Connor <doconnor@gsoft.com.au> parents: diff changeset	184 r.write('CALC:DELT1:FUNC:PNO')
b6ebe05f250f Add some commentry about what it works with Daniel O'Connor <doconnor@gsoft.com.au> parents: diff changeset	185
b6ebe05f250f Add some commentry about what it works with Daniel O'Connor <doconnor@gsoft.com.au> parents: diff changeset	186 for idx, m in enumerate(measurements):
b6ebe05f250f Add some commentry about what it works with Daniel O'Connor <doconnor@gsoft.com.au> parents: diff changeset	187 # Setup measurement
76 e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	188 setupsweep(r, m['rbw'], m['vbw'], span = m['span'])
74 b6ebe05f250f Add some commentry about what it works with Daniel O'Connor <doconnor@gsoft.com.au> parents: diff changeset	189 # Do the sweep
b6ebe05f250f Add some commentry about what it works with Daniel O'Connor <doconnor@gsoft.com.au> parents: diff changeset	190 dosweep(r, sweeps)
b6ebe05f250f Add some commentry about what it works with Daniel O'Connor <doconnor@gsoft.com.au> parents: diff changeset	191
b6ebe05f250f Add some commentry about what it works with Daniel O'Connor <doconnor@gsoft.com.au> parents: diff changeset	192 # Set offset of phase noise measurement
76 e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	193 r.write('CALC:MARK1:MAX')
e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	194 r.write('CALC:DELT1:MOD REL')
e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	195 r.write('CALC:DELT1:X %f Hz' % (m['offset']))
74 b6ebe05f250f Add some commentry about what it works with Daniel O'Connor <doconnor@gsoft.com.au> parents: diff changeset	196 meas = float(r.ask('CALC:DELT:FUNC:PNO:RES?'))
81 1947d10f9395 - Search for signal frequency iteratively to improve accuracy. Daniel O'Connor <doconnor@gsoft.com.au> parents: 77 diff changeset	197 print('Offset %7s %7.2f dBc/Hz' % (misc.sifmt(m['offset'], dp = 0), meas))
76 e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	198
e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	199 # Take screen shot and save it
e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	200 if ssprefix is not None:
e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	201 screenshot(r, '%s-%d_%s_offset.png' % (
81 1947d10f9395 - Search for signal frequency iteratively to improve accuracy. Daniel O'Connor <doconnor@gsoft.com.au> parents: 77 diff changeset	202 ssprefix, idx, misc.sifmt(m['offset'], dp = 0, sp = '')))
74 b6ebe05f250f Add some commentry about what it works with Daniel O'Connor <doconnor@gsoft.com.au> parents: diff changeset	203
76 e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	204 # Do a wide band scan
e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	205 if ssprefix is not None:
e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	206 start = 1e6
e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	207 stop = 100e6
e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	208 setupsweep(r, 1e3, 3e3, start = start, stop = stop)
81 1947d10f9395 - Search for signal frequency iteratively to improve accuracy. Daniel O'Connor <doconnor@gsoft.com.au> parents: 77 diff changeset	209 print('Scanning %s - %s (%.1f seconds)' % (misc.sifmt(start, dp = 0), misc.sifmt(stop, dp = 0),
1947d10f9395 - Search for signal frequency iteratively to improve accuracy. Daniel O'Connor <doconnor@gsoft.com.au> parents: 77 diff changeset	210 getsweeptime(r)))
76 e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	211 dosweep(r, sweeps)
e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	212 # Show peaks
e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	213 r.write('CALC:MARK:AOFF')
e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	214 for i, (f, p) in enumerate(zip(*findpeaks(r, 4))):
e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	215 r.write('CALC:MARK%d:X %f Hz' % (i + 1, f))
e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	216 screenshot(r, '%s-sweep-%.1f-%.1fMHz.png' % (
e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	217 ssprefix, start / 1e6, stop / 1e6))
74 b6ebe05f250f Add some commentry about what it works with Daniel O'Connor <doconnor@gsoft.com.au> parents: diff changeset	218
76 e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	219 # Look from just before signal to just after second harmonic
e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	220 start = nominal * 0.9
e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	221 stop = 2 * nominal + nominal * 0.1
e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	222 setupsweep(r, 1e3, 3e3, start = start, stop = stop)
81 1947d10f9395 - Search for signal frequency iteratively to improve accuracy. Daniel O'Connor <doconnor@gsoft.com.au> parents: 77 diff changeset	223 print('Scanning %s - %s (%.1f seconds)' % (misc.sifmt(start, dp = 0), misc.sifmt(stop, dp = 0),
1947d10f9395 - Search for signal frequency iteratively to improve accuracy. Daniel O'Connor <doconnor@gsoft.com.au> parents: 77 diff changeset	224 getsweeptime(r)))
76 e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	225 dosweep(r, sweeps)
e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	226 # Show peaks
e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	227 r.write('CALC:MARK:AOFF')
e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	228 for i, (f, p) in enumerate(zip(*findpeaks(r, 4))):
e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	229 r.write('CALC:MARK%d:X %f Hz' % (i + 1, f))
e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	230 screenshot(r, '%s-sweep-%.1f-%.1fMHz.png' % (
e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	231 ssprefix, start / 1e6, stop / 1e6))
74 b6ebe05f250f Add some commentry about what it works with Daniel O'Connor <doconnor@gsoft.com.au> parents: diff changeset	232
76 e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	233 def screenshot(r, ssname, sapath = '\'c:\\temp\\pntmp.bmp\''):
e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	234 # Setup & take screen shot
e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	235 r.write('HCOPY:DEV:LANG1 BMP')
e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	236 r.write('HCOPY:DEST1 MMEM')
e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	237 r.write('HCOPY:CMAP:DEF2')
e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	238 r.write('HCOPY:ITEM:ALL')
e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	239 r.write('MMEM:NAME %s' % (sapath,))
e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	240 r.write('HCOPY:IMM1')
e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	241 time.sleep(5)
74 b6ebe05f250f Add some commentry about what it works with Daniel O'Connor <doconnor@gsoft.com.au> parents: diff changeset	242
76 e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	243 # Grab it
e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	244 r.write('MMEM:DATA? %s' % (sapath,))
e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	245 bmpdat = scpi.getbin(r.read())
e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	246 bmpname = ssname[0:-4] + '.bmp'
74 b6ebe05f250f Add some commentry about what it works with Daniel O'Connor <doconnor@gsoft.com.au> parents: diff changeset	247
76 e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	248 # Convert to whatever format
e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	249 open(bmpname, 'wb').write(bmpdat)
e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	250 img = PIL.Image.open(bmpname)
e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	251 img.save(ssname)
e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	252 os.unlink(bmpname)
e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	253 r.write('MMEM:DEL %s' % (sapath,))
74 b6ebe05f250f Add some commentry about what it works with Daniel O'Connor <doconnor@gsoft.com.au> parents: diff changeset	254
b6ebe05f250f Add some commentry about what it works with Daniel O'Connor <doconnor@gsoft.com.au> parents: diff changeset	255 if __name__ == '__main__':
77 23c96322cfb6 Spell Rohde Schwarz correctly. Daniel O'Connor <doconnor@gsoft.com.au> parents: 76 diff changeset	256 parser = argparse.ArgumentParser(description = 'Configures a Rohde Schwarz FSP7 spectrum analyser to do a phase noise measurement')
76 e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	257 parser.add_argument('-a', '--atten', default = None, help = 'Attenuation level (default: autoamatic)')
e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	258 parser.add_argument('-r', '--rlevel', default = 10, help = 'Reference level (default: %default dBm)', type = float)
e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	259 parser.add_argument('-s', '--ssprefix', default = None, help = 'Path name to save screenshots to (default: none)', type = str)
e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	260 parser.add_argument('-w', '--sweeps', default = 1, help = 'Number of sweeps (default: %default)', type = int)
e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	261 parser.add_argument('-y', '--yscale', default = 120, help = 'Y-scale extent (default: %default dB)', type = float)
e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	262 parser.add_argument('address', help = 'Address of analyser', type = str)
e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	263 parser.add_argument('nominal', help = 'Nominal frequency of measurement (Hz)', type = float)
74 b6ebe05f250f Add some commentry about what it works with Daniel O'Connor <doconnor@gsoft.com.au> parents: diff changeset	264
76 e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	265 args = parser.parse_args()
74 b6ebe05f250f Add some commentry about what it works with Daniel O'Connor <doconnor@gsoft.com.au> parents: diff changeset	266
b6ebe05f250f Add some commentry about what it works with Daniel O'Connor <doconnor@gsoft.com.au> parents: diff changeset	267 # Connect to the analyser
76 e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	268 r = rsib.RSIBDevice(args.address)
74 b6ebe05f250f Add some commentry about what it works with Daniel O'Connor <doconnor@gsoft.com.au> parents: diff changeset	269
b6ebe05f250f Add some commentry about what it works with Daniel O'Connor <doconnor@gsoft.com.au> parents: diff changeset	270 # ID instrument
76 e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	271 print('Device ID is', r.ask('*IDN?').decode('ascii'))
74 b6ebe05f250f Add some commentry about what it works with Daniel O'Connor <doconnor@gsoft.com.au> parents: diff changeset	272
76 e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	273 # Do measurements
e2bb136bd2ed Add script to use FSP7 to perform phasenoise measurements. Daniel O'Connor <doconnor@gsoft.com.au> parents: 74 diff changeset	274 phasenoise(r, args.nominal, args.sweeps, args.atten, args.rlevel, args.yscale, args.ssprefix)

Mercurial > ~darius > hgwebdir.cgi > pyinst

annotate fsp7_phasenoise.py @ 81:1947d10f9395