diff --git a/sbp.cabal b/sbp.cabal
--- a/sbp.cabal
+++ b/sbp.cabal
@@ -1,5 +1,5 @@
 name:                  sbp
-version:               4.7.0
+version:               4.8.0
 synopsis:              SwiftNav's SBP Library
 homepage:              https://github.com/swift-nav/libsbp
 license:               MIT
diff --git a/src/SwiftNav/SBP/Gnss.hs b/src/SwiftNav/SBP/Gnss.hs
--- a/src/SwiftNav/SBP/Gnss.hs
+++ b/src/SwiftNav/SBP/Gnss.hs
@@ -40,8 +40,8 @@
 -- Signal identifier containing constellation, band, and satellite identifier.
 data GnssSignal = GnssSignal
   { _gnssSignal_sat :: !Word8
-    -- ^ Constellation-specific satellite identifier. This field for Glonass can
-    -- either be (100+FCN) where FCN is in [-7,+6] or the Slot ID in [1,28].
+    -- ^ Constellation-specific satellite id. For GLO can either be (100+FCN)
+    -- where FCN is in [-7,+6] or the Slot ID in [1,28].
   , _gnssSignal_code :: !Word8
     -- ^ Signal constellation, band and code
   } deriving ( Show, Read, Eq )
@@ -65,7 +65,8 @@
 -- vehicle.
 data SvId = SvId
   { _svId_satId       :: !Word8
-    -- ^ ID of the space vehicle within its constellation
+    -- ^ Constellation-specific satellite id. For GLO can either be (100+FCN)
+    -- where FCN is in [-7,+6] or the Slot ID in [1,28].
   , _svId_constellation :: !Word8
     -- ^ Constellation ID to which the SV belongs
   } deriving ( Show, Read, Eq )
diff --git a/src/SwiftNav/SBP/Ssr.hs b/src/SwiftNav/SBP/Ssr.hs
--- a/src/SwiftNav/SBP/Ssr.hs
+++ b/src/SwiftNav/SBP/Ssr.hs
@@ -256,8 +256,8 @@
   , _troposphericDelayCorrection_wet  :: !Int8
     -- ^ Wet vertical delay. Add 0.252 m to get actual value.
   , _troposphericDelayCorrection_stddev :: !Word8
-    -- ^ Modified DF389 scale. Class is upper 3 bits, value is lower 5. stddev
-    -- <= (3^class * (1 + value/16) - 1) mm
+    -- ^ Modified DF389. class 3 MSB, value 5 LSB. stddev = (3^class * (1 +
+    -- value/16) - 1)
   } deriving ( Show, Read, Eq )
 
 instance Binary TroposphericDelayCorrection where
@@ -308,8 +308,8 @@
   , _sTECResidual_residual :: !Int16
     -- ^ STEC residual
   , _sTECResidual_stddev :: !Word8
-    -- ^ Modified DF389 scale. Class is upper 3 bits, value is lower 5. stddev
-    -- <= (3^class * (1 + value/16) - 1) * 10 TECU
+    -- ^ Modified DF389. class 3 MSB, value 5 LSB. stddev = (3^class * (1 +
+    -- value/16) - 1) * 10
   } deriving ( Show, Read, Eq )
 
 instance Binary STECResidual where