diff --git a/ddbridge/ddbridge-sx8.c b/ddbridge/ddbridge-sx8.c
index 15b53d1..cf91cbe 100644
--- a/ddbridge/ddbridge-sx8.c
+++ b/ddbridge/ddbridge-sx8.c
@@ -255,6 +255,10 @@ static int start(struct dvb_frontend *fe, u32 flags, u32 modmask, u32 ts_config)
 	u32 bits_per_symbol = 0;
 	int i = -1, stat = 0;
 	struct ddb_link *link = state->mci.base->link;
+	const u8 ro_lut[8] = {
+		8 | SX8_ROLLOFF_35, 8 | SX8_ROLLOFF_20, 8 | SX8_ROLLOFF_25, 0,
+		8 | SX8_ROLLOFF_15, 8 | SX8_ROLLOFF_10, 8 | SX8_ROLLOFF_05, 0,
+	};
 
 	if (link->ids.device == 0x000b) {
 		/* Mask out higher modulations and MIS for Basic
@@ -359,6 +363,7 @@ unlock:
 	cmd.command = MCI_CMD_SEARCH_DVBS;
 	cmd.dvbs2_search.flags = flags;
 	cmd.dvbs2_search.s2_modulation_mask = modmask;
+	cmd.dvbs2_search.rsvd1 = ro_lut[p->rolloff & 7];
 	cmd.dvbs2_search.retry = 2;
 	cmd.dvbs2_search.frequency = p->frequency * 1000;
 	cmd.dvbs2_search.symbol_rate = p->symbol_rate;