diff --git a/Transceiver52M/device/uhd/UHDDevice.cpp b/Transceiver52M/device/uhd/UHDDevice.cpp
index c30f3a7..3db09a8 100644
--- a/Transceiver52M/device/uhd/UHDDevice.cpp
+++ b/Transceiver52M/device/uhd/UHDDevice.cpp
@@ -486,6 +486,9 @@
 
 double uhd_device::setRxGain(double db, size_t chan)
 {
+	if (iface == MULTI_ARFCN)
+		chan = 0;
+
 	if (chan >= rx_gains.size()) {
 		LOGC(DDEV, ALERT) << "Requested non-existent channel " << chan;
 		return 0.0f;