diff --git a/impl/src/layer1/rx.c b/impl/src/layer1/rx.c
index 917d69c..5fd7e4b 100644
--- a/impl/src/layer1/rx.c
+++ b/impl/src/layer1/rx.c
@@ -253,8 +253,9 @@ result_t layer1_rx_process(layer1_rx_t *rx, const float complex *samples, size_t
 
 	float complex samples2dump[sample_count];
 	size_t nsamples2dump = 0;
-	float complex samples2dump2[sample_count];
-	size_t nsamples2dump2 = 0;
+
+	static float complex samples2dump_s[8192];
+	static size_t nsamples2dump_s = 0;
 
 	// cache configuration flags
 	bool is_central_node = options_is_flag_set(OPTIONS_FLAG_IS_CENTRAL_NODE);
@@ -431,7 +432,10 @@ result_t layer1_rx_process(layer1_rx_t *rx, const float complex *samples, size_t
 
 					var_array_cf_append(&rx->packet_debug_info.data_symbols, mixed_sample);
 
-					samples2dump2[nsamples2dump2++] = mixed_sample;
+					if(nsamples2dump_s < sizeof(samples2dump_s)/sizeof(samples2dump_s[0])) {
+						samples2dump_s[nsamples2dump_s++] = mixed_sample;
+					}
+
 					if(symbol_counter < rx->payload_len_symbols) {
 						unsigned int sym_demod;
 						modem_demodulate(rx->payload_demod, mixed_sample, &sym_demod);
@@ -450,6 +454,9 @@ result_t layer1_rx_process(layer1_rx_t *rx, const float complex *samples, size_t
 						unsigned char payload_enc[rx->payload_len_enc_bytes];
 						unsigned char payload[rx->payload_len_bytes+1];
 
+						dump_array_cf(samples2dump_s, nsamples2dump_s, 1.0f/(SYMBOL_RATE), "/tmp/rx_dbg2.cpx64");
+						nsamples2dump_s = 0;
+
 						// store debug info about the data
 						rx->packet_debug_info.data_rssi = agc_crcf_get_rssi(rx->agc);
 						rx->packet_debug_info.data_evm = -1e38f; // FIXME
@@ -508,7 +515,6 @@ result_t layer1_rx_process(layer1_rx_t *rx, const float complex *samples, size_t
 	assert(nsamples2dump <= (sizeof(samples2dump) / sizeof(samples2dump[0])));
 
 	dump_array_cf(samples2dump, nsamples2dump, 1.0f/(RRC_SPS * SYMBOL_RATE), "/tmp/rx_dbg.cpx64");
-	dump_array_cf(samples2dump2, nsamples2dump2, 1.0f/(SYMBOL_RATE), "/tmp/rx_dbg2.cpx64");
 
 	return OK;
 }