setup format

.flake8

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+[flake8]
+max-line-length = 132
+exclude = .git,__pycache__,.eggs/,doc/,docs/,build/,dist/,archive/

README.md

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+# GNU Radio amateur radio examples
+
+
+## Red Pitaya
+
+[RedPitaya]{.title-ref} contains code for [Red
+Pitaya](https://www.scivision.dev/red-pitaya-gnuradio-setup)
+[PiRadar](https://www.scivision.dev/pi-radar).
+
+## SSB Examples
+
+First we start with the most basic example of SSB. This example lacks
+the filtering normally used with these methods to be as minimal as
+possible. They work via files recorded to disk using your computer\'s
+microphone.
+
+There are numerous references for SSB transmitters and receivers, such
+as the ARRL Handbook, or the [Philips AN1981 application
+note](http://www.nxp.com/documents/application_note/an1981.pdf). In
+AN1981, Fig. 8 shows the Weaver method receiver (note I only use the
+part to the right of the filters, since I didn\'t use filtering). In
+AN1981, Fig. 5 shows the Phasing method transmitter. In both cases,
+ignore the divide-by-4 of AN1981 as that\'s peculiar to their system.
+
+### Simplest synthethic SSB simulation
+
+This simulation doesn\'t use any filters, and so would never work in the
+real world unless there were no other transmissions within a few octaves
+of your sampling bandwidth. You can see in the FFT scope on transmit
+that it is indeed USB transmission.
+
+The first example uses the phasing method to transmit on a synthetic 50
+kHz carrier frequency Fc, upper sideband only. Next, you receive this
+Fc=50 kHz USB transmission using a Weaver method SSB receiver.
+
+The noise floor on transmit extends from Fc to Fc+24 kHz as that\'s 1/2
+the bandwidth of your 48kHz sound card. You can transmit some
+hi-fidelity SSB audio of DC to 24kHz, limited by your PC microphone and
+speakers. You may hear some background crackling and aliasing artifacts
+due to no digital filtering used, but overall the audio should be
+relatively clear.
+
+You can see the reference material to add the appropriate filters to
+these examples as an exercise.
+
+1.  Open and Run ssbTXhilbert.grc in GNU Radio Companion. This records
+    your voice via your computer microphone to a file \$HOME/test.dat.
+    This file is complex float data. Hit Stop to stop recording.
+2.  Open and Run ssbRX.grc in GNU Radio Companion. This loops back your
+    voice through your computer speakers.
+
+![simplest no-filter SSB receiver](gfx/ssbRX.grc.png)
+
+![simplest no-filter SSB transmitter](gfx/ssbTXhilbert.grc.png)

mypy.ini

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+[mypy]
+ignore_missing_imports = True
+strict_optional = False
+allow_redefinition = True

pyproject.toml

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+[build-system]
+requires = ["setuptools", "wheel"]
+
+[tool.black]
+line-length = 99