From a24983e116fb3db769541f2b4523f7b2af55d7ed Mon Sep 17 00:00:00 2001
From: pux <pux@pux.dom>
Date: Sat, 19 Dec 2020 20:50:06 +0100
Subject: README

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+# calctenna
+
+## calculate dipole antenna leg length
+
+```
+usage: calctenna.py [-h] [-f [frequency]] [-V [velocity_factor]] [-q]
+
+optional arguments:
+  -h, --help            show this help message and exit
+  -f [frequency], --frequency [frequency]
+                        Desired frequency in Hz
+  -V [velocity_factor], --velocity-factor [velocity_factor]
+  -q, --quiet           print only result
+```
+
+### Example output:
+
+```
+$ calctenna.py -f 104e6
+Desired Frequency: 104e6 Hz
+Wavelength: 2.883 m
+Wavelength / 2: 1.441 m
+Wavelength / 4: 0.721 m
+Velocity factor: 0.951
+-> Dipole leg length (lambda/4): 0.685 m
+```
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