diff --git a/ofdm/ofdm_rx.m b/ofdm/ofdm_rx.m
index e93d745..9fea542 100644
--- a/ofdm/ofdm_rx.m
+++ b/ofdm/ofdm_rx.m
@@ -1,4 +1,4 @@
-function [sym_out, H, W] = ofdm_rx(filename, foff, flip_spec, SNR, with_cir, show_H)
+function ofdm_rx(filename, foff, flip_spec, SNR, with_cir, show_H)
 %
 % [sym_out, H, W] = ofdm_rx(filename, foff, flip_spec, SNR, with_cir, show_H)
 % Example: ofdm_rx('drm-15435-if.wav', -174.65, 0, 400, 0, 1)
@@ -204,17 +204,6 @@ for n=0:15-1
 end
 frame_start = n_max
 
-figure;
-start = skip_syms+frame_start;
-Z_timing = Z_(bins, start:15:length(Z_))';
-plot(real(Z_timing), imag(Z_timing), '+'); grid; title('SymPilot_{Time}'); 
-maxZ = max(max(abs(Z_timing)));
-if (maxZ < 1)
-    axis([-1 1 -1 1]);
-else
-    axis([-maxZ maxZ -maxZ maxZ]);
-end
-
 fprintf('Channel estimation and symbol reception\n');
 
 [W_syms, W_pilots] = calcWiener(drm_mode, drm_bw);
@@ -251,11 +240,11 @@ m = 0;
 
 H_syms = [];
 H_pilots = [];
-sym_out = [];
 kk = 1;
 H_ = [];
 df_track_ = [];
 MIN_ABS_H = 1e-10;
+start = skip_syms+frame_start;
 
 for k=start:length(Z_)
     
@@ -264,7 +253,7 @@ for k=start:length(Z_)
 
 	[carrier_gain, phi_gain, mag_gain] = getRefGain(ofdm_drm_params, ofdm_spec_occ, s);
     carrier_gain_bins = c2i(N, carrier_gain);
-	H_  = transpose(Z_(carrier_gain_bins, k))./(mag_gain.*exp(j*2*pi*phi_gain/1024));
+	H_ = transpose(Z_(carrier_gain_bins, k))./(mag_gain.*exp(j*2*pi*phi_gain/1024));
 
     H_raw(carrier_gain_bins) = (H_);
     H_gain_cell{m+1} = (H_);
@@ -296,7 +285,6 @@ for k=start:length(Z_)
 
 		% equalize symbol
 		sym_eq = sym ./ H_syms;
-		sym_out(:, kk) = sym_eq;
 		if 0
 			subplot(2, 1, 1)
 			plot(1:length(Hr), abs(Hr), 'b-', 1:length(H_pilots), abs(H_pilots), 'r-'); grid;