diff --git a/radio/composites/amenvelopedemodulator.lua b/radio/composites/amenvelopedemodulator.lua
index 5859bd495..38b52f77b 100644
--- a/radio/composites/amenvelopedemodulator.lua
+++ b/radio/composites/amenvelopedemodulator.lua
@@ -11,7 +11,7 @@
 -- @signature in:ComplexFloat32 > out:Float32
 --
 -- @usage
--- -- AM demodulator with 5 KHz bandwidth
+-- -- AM demodulator with 5 kHz bandwidth
 -- local demod = radio.AMEnvelopeDemodulator(5e3)
 
 local block = require('radio.core.block')
diff --git a/radio/composites/amsynchronousdemodulator.lua b/radio/composites/amsynchronousdemodulator.lua
index 2eeb1bf1c..ad48bea54 100644
--- a/radio/composites/amsynchronousdemodulator.lua
+++ b/radio/composites/amsynchronousdemodulator.lua
@@ -13,7 +13,7 @@
 -- @signature in:ComplexFloat32 > out:Float32
 --
 -- @usage
--- -- AM demodulator with 100 KHz IF, 5 KHz bandwidth
+-- -- AM demodulator with 100 kHz IF, 5 kHz bandwidth
 -- local demod = radio.AMSynchronousDemodulator(100e3, 5e3)
 
 local block = require('radio.core.block')
diff --git a/radio/composites/nbfmdemodulator.lua b/radio/composites/nbfmdemodulator.lua
index 8c6e25a24..bfe253bd4 100644
--- a/radio/composites/nbfmdemodulator.lua
+++ b/radio/composites/nbfmdemodulator.lua
@@ -14,7 +14,7 @@
 -- @signature in:ComplexFloat32 > out:Float32
 --
 -- @usage
--- -- NBFM demodulator with 5KHz deviation and 4KHz bandwidth
+-- -- NBFM demodulator with 5 kHz deviation and 4 kHz bandwidth
 -- local demod = radio.NBFMDemodulator(5e3, 4e3)
 
 local block = require('radio.core.block')
diff --git a/radio/composites/pocsagreceiver.lua b/radio/composites/pocsagreceiver.lua
index cdae376a3..da7d29e2f 100644
--- a/radio/composites/pocsagreceiver.lua
+++ b/radio/composites/pocsagreceiver.lua
@@ -1,5 +1,5 @@
 ---
--- Demodulate and decode POCSAG messages from a baseband, 4.5 KHz shift FSK
+-- Demodulate and decode POCSAG messages from a baseband, 4.5 kHz shift FSK
 -- modulated complex-valued signal.
 --
 -- @category Receivers
diff --git a/radio/composites/ssbdemodulator.lua b/radio/composites/ssbdemodulator.lua
index 893a4575b..fe73c7db6 100644
--- a/radio/composites/ssbdemodulator.lua
+++ b/radio/composites/ssbdemodulator.lua
@@ -12,7 +12,7 @@
 -- @signature in:ComplexFloat32 > out:Float32
 --
 -- @usage
--- -- SSB LSB demodulator with 3 KHz bandwidth
+-- -- SSB LSB demodulator with 3 kHz bandwidth
 -- local demod = radio.SSBDemodulator("lsb", 3e3)
 
 local block = require('radio.core.block')
diff --git a/radio/composites/ssbmodulator.lua b/radio/composites/ssbmodulator.lua
index 41a6f75c3..594d4a84a 100644
--- a/radio/composites/ssbmodulator.lua
+++ b/radio/composites/ssbmodulator.lua
@@ -12,7 +12,7 @@
 -- @signature in:Float32 > out:ComplexFloat32
 --
 -- @usage
--- -- SSB LSB modulator with 3 KHz bandwidth
+-- -- SSB LSB modulator with 3 kHz bandwidth
 -- local mod = radio.SSBModulator("lsb", 3e3)
 
 local block = require('radio.core.block')
diff --git a/radio/composites/tuner.lua b/radio/composites/tuner.lua
index 20013540f..d15a98fe9 100644
--- a/radio/composites/tuner.lua
+++ b/radio/composites/tuner.lua
@@ -20,7 +20,7 @@
 -- @signature in:ComplexFloat32 > out:ComplexFloat32
 --
 -- @usage
--- -- Translate -100KHz, filter 12KHz, and decimate by 5
+-- -- Translate -100 kHz, filter 12 kHz, and decimate by 5
 -- local tuner = radio.TunerBlock(-100e3, 12e3, 5)
 
 local block = require('radio.core.block')