diff --git a/include/l1ctl_proto.h b/include/l1ctl_proto.h
index c1220d601..4b9540e9a 100644
--- a/include/l1ctl_proto.h
+++ b/include/l1ctl_proto.h
@@ -283,12 +283,15 @@ struct l1ctl_neigh_pm_req {
 	uint8_t n;
 	uint8_t padding[1];
 	uint16_t band_arfcn[64];
+	uint8_t tn[64];
 } __attribute__((packed));
 
 /* neighbour cell measurement results */
 struct l1ctl_neigh_pm_ind {
 	uint16_t band_arfcn;
 	uint8_t pm[2];
+	uint8_t tn;
+	uint8_t padding;
 } __attribute__((packed));
 
 /* traffic data to network */
diff --git a/src/target/firmware/include/layer1/sync.h b/src/target/firmware/include/layer1/sync.h
index aa03c827a..dae85a1a9 100644
--- a/src/target/firmware/include/layer1/sync.h
+++ b/src/target/firmware/include/layer1/sync.h
@@ -151,6 +151,7 @@ struct l1s_state {
 		uint8_t pos;
 		uint8_t running;
 		uint16_t band_arfcn[64];
+		uint8_t tn[64];
 		uint8_t	level[64];
 	} neigh_pm;
 };
diff --git a/src/target/firmware/layer1/l23_api.c b/src/target/firmware/layer1/l23_api.c
index 2581b5bb7..659f31734 100644
--- a/src/target/firmware/layer1/l23_api.c
+++ b/src/target/firmware/layer1/l23_api.c
@@ -49,7 +49,8 @@
 
 /* the size we will allocate struct msgb* for HDLC */
 #define L3_MSG_HEAD 4
-#define L3_MSG_SIZE (sizeof(struct l1ctl_hdr)+sizeof(struct l1ctl_info_dl)+sizeof(struct l1ctl_traffic_ind) + L3_MSG_HEAD)
+#define L3_MSG_DATA 200
+#define L3_MSG_SIZE (L3_MSG_HEAD + sizeof(struct l1ctl_hdr) + L3_MSG_DATA)
 
 void (*l1a_l23_tx_cb)(struct msgb *msg) = NULL;
 
@@ -529,8 +530,10 @@ static void l1ctl_rx_neigh_pm_req(struct msgb *msg)
 	/* now reset pointer and fill list */
 	l1s.neigh_pm.pos = 0;
 	l1s.neigh_pm.running = 0;
-	for (i = 0; i < pm_req->n; i++)
+	for (i = 0; i < pm_req->n; i++) {
 		l1s.neigh_pm.band_arfcn[i] = ntohs(pm_req->band_arfcn[i]);
+		l1s.neigh_pm.tn[i] = pm_req->tn[i];
+	}
 	printf("L1CTL_NEIGH_PM_REQ new list with %u entries\n", pm_req->n);
 	l1s.neigh_pm.n = pm_req->n; /* atomic */
 
diff --git a/src/target/firmware/layer1/mframe_sched.c b/src/target/firmware/layer1/mframe_sched.c
index 6281c3d63..2367d4254 100644
--- a/src/target/firmware/layer1/mframe_sched.c
+++ b/src/target/firmware/layer1/mframe_sched.c
@@ -200,7 +200,11 @@ static const struct mframe_sched_item mf_sdcch8_7[] = {
 
 /* Measurement for MF 51 */
 static const struct mframe_sched_item mf_neigh_pm51[] = {
-	{ .sched_set = NEIGH_PM   , .modulo = 51, .frame_nr = 50 },
+	{ .sched_set = NEIGH_PM   , .modulo = 51, .frame_nr = 0 },
+	{ .sched_set = NEIGH_PM   , .modulo = 51, .frame_nr = 10 },
+	{ .sched_set = NEIGH_PM   , .modulo = 51, .frame_nr = 20 },
+	{ .sched_set = NEIGH_PM   , .modulo = 51, .frame_nr = 30 },
+	{ .sched_set = NEIGH_PM   , .modulo = 51, .frame_nr = 40 },
 	{ .sched_set = NULL }
 };
 
diff --git a/src/target/firmware/layer1/prim_pm.c b/src/target/firmware/layer1/prim_pm.c
index 07b72097c..1630600a4 100644
--- a/src/target/firmware/layer1/prim_pm.c
+++ b/src/target/firmware/layer1/prim_pm.c
@@ -175,7 +175,8 @@ static int l1s_neigh_pm_cmd(uint8_t num_meas,
 	 * num_meas > 1 */
 	/* do measurement dummy, in case l1s.neigh_pm.n == 0 */
 	l1s_rx_win_ctrl((l1s.neigh_pm.n) ?
-		l1s.neigh_pm.band_arfcn[l1s.neigh_pm.pos] : 0, L1_RXWIN_PW, 0);
+			l1s.neigh_pm.band_arfcn[l1s.neigh_pm.pos] : 0,
+		L1_RXWIN_PW, l1s.neigh_pm.tn[l1s.neigh_pm.pos]);
 
 	/* restore last gain */
 	rffe_set_gain(last_gain);
@@ -218,6 +219,7 @@ static int l1s_neigh_pm_resp(__unused uint8_t p1, __unused uint8_t p2,
 			mi = (struct l1ctl_neigh_pm_ind *)
 				msgb_put(msg, sizeof(*mi));
 			mi->band_arfcn = htons(l1s.neigh_pm.band_arfcn[i]);
+			mi->tn = l1s.neigh_pm.tn[i];
 			mi->pm[0] = l1s.neigh_pm.level[i];
 			mi->pm[1] = 0;
 		}