diff --git a/impl/src/layer1/rx.c b/impl/src/layer1/rx.c
index 1b7bbf6..ac98843 100644
--- a/impl/src/layer1/rx.c
+++ b/impl/src/layer1/rx.c
@@ -31,17 +31,20 @@
 #	define DEBUG_LOG(...) {}
 #endif
 
-static void update_nco_pll(nco_crcf nco, float phase_error)
+#define PLL_BW_HEADER 0.03f
+#define PLL_BW_DATA 0.01f
+
+static void update_nco_pll(nco_crcf nco, float phase_error, float bw)
 {
-	static const float pll_alpha = 0.03f;                          // phase adjustment factor
-	static const float pll_beta  = (pll_alpha * pll_alpha) / 2.0f; // frequency adjustment factor
+	const float pll_alpha = bw;                             // phase adjustment factor
+	const float pll_beta  = (pll_alpha * pll_alpha) * 1.0f; // frequency adjustment factor
 
 	nco_crcf_adjust_phase(nco, pll_alpha * phase_error);
 	nco_crcf_adjust_frequency(nco, pll_beta * phase_error);
 
-	DEBUG_LOG("NCO adjusted: f=%.6f, φ=%.6f\n",
+	/*DEBUG_LOG("NCO adjusted: f=%.6f, φ=%.6f\n",
 			nco_crcf_get_frequency(nco),
-			nco_crcf_get_phase(nco));
+			nco_crcf_get_phase(nco));*/
 }
 
 
@@ -217,7 +220,7 @@ result_t layer1_rx_process(layer1_rx_t *rx, const float complex *samples, size_t
 						//DEBUG_LOG("Sym: %d; Phase error: %f\n", sym_demod, phase_error);
 
 
-						update_nco_pll(rx->carrier_fine_nco, phase_error);
+						update_nco_pll(rx->carrier_fine_nco, phase_error, PLL_BW_HEADER);
 
 						symbols_int[symbol_counter] = sym_demod;
 						symbol_counter++;
@@ -306,7 +309,7 @@ result_t layer1_rx_process(layer1_rx_t *rx, const float complex *samples, size_t
 						float phase_error = modem_get_demodulator_phase_error(rx->payload_demod);
 						//DEBUG_LOG("Sym: %d; Phase error: %f\n", sym_demod, phase_error);
 
-						update_nco_pll(rx->carrier_fine_nco, phase_error);
+						update_nco_pll(rx->carrier_fine_nco, phase_error, PLL_BW_DATA);
 
 						symbols_int[symbol_counter] = sym_demod;
 						symbol_counter++;