diff --git a/lib/radio/nco/src/nco_pkg.vhd b/lib/radio/nco/src/nco_pkg.vhd
index 6c0f5f6..c8d3f42 100644
--- a/lib/radio/nco/src/nco_pkg.vhd
+++ b/lib/radio/nco/src/nco_pkg.vhd
@@ -11,11 +11,6 @@ package nco_pkg is
 
 	constant tpd : time := 0 ns;
 
-	-- Global set arithmetic rounding mode
---	constant pi			: real := 3.141592653589793e+000;
---	constant sqrt2		: real := 1.414213562373095e+000;
---	constant sqrt2_inv	: real := 7.071067811865475e-001;
-
 	type real_array_t is array (natural range <>) of real;
 	type natural_array_t is array (natural range <>) of natural;
 	type phase_relation_t is (phase_90deg, phase_270deg);
@@ -57,14 +52,6 @@ package nco_pkg is
 	function sin_tbl(nsamples : integer; omega, phi_in : real) return real_array_t;
 	function cos_tbl(nsamples : integer; omega, phi_in : real) return real_array_t;
 	
-	-------------------------------------------------------------
-	-- Constructor helpers
-	-- Use: variable v8u6 : ufixed_t(ufixed(8,6)'range);
---	function uproto (nbits : integer; nbits_frac : integer) return ufixed;
-
-	-- Use: variable v8s6 : sfixed_t(sfixed(8,6)'range);
---	function sproto (nbits : integer; nbits_frac : integer) return sfixed;
-	
 end; -- package nco_pkg;
 
 -------------------------------------------------------------------------------
@@ -99,20 +86,5 @@ package body nco_pkg is
 		return tbl;
 	end cos_tbl;
 
-	-------------------------------------------------------------
-	-- Constuctor helpers
---	function uproto (nbits : integer; nbits_frac : integer) return ufixed is
---	constant result : ufixed (nbits-nbits_frac-1 downto -nbits_frac) := (others => '0');
---	begin 
---	return result(nbits-nbits_frac-1 downto -nbits_frac);
---	end uproto;
-
-	-------------------------------------------------------------
---	function sproto (nbits : integer; nbits_frac : integer) return sfixed is
---	constant result : sfixed (nbits-nbits_frac downto -nbits_frac+1) := (others => '0');
---	begin 
---	return result(nbits-nbits_frac downto -nbits_frac+1);
---	end sproto;
-
 -------------------------------------------------------------------------------
 end; -- package nco_pkg;