diff --git a/include/rtlsdr_i2c.h b/include/rtlsdr_i2c.h
index 6faf141..b683896 100644
--- a/include/rtlsdr_i2c.h
+++ b/include/rtlsdr_i2c.h
@@ -2,6 +2,7 @@
 #define __I2C_H
 
 int rtlsdr_check_dongle_model(void *dev, char *manufact_check, char *product_check);
+int rtlsdr_set_bias_tee_gpio(void *dev, int gpio, int on);
 uint32_t rtlsdr_get_tuner_clock(void *dev);
 int rtlsdr_i2c_write_fn(void *dev, uint8_t addr, uint8_t *buf, int len);
 int rtlsdr_i2c_read_fn(void *dev, uint8_t addr, uint8_t *buf, int len);
diff --git a/src/tuner_r82xx.c b/src/tuner_r82xx.c
index 1510fc3..38d4802 100644
--- a/src/tuner_r82xx.c
+++ b/src/tuner_r82xx.c
@@ -1151,6 +1151,12 @@ int r82xx_set_freq(struct r82xx_priv *priv, uint32_t freq)
 			cable_2_in = (band == HF) ? 0x08 : 0x00;
 			rc = r82xx_write_reg_mask(priv, 0x06, cable_2_in, 0x08);
 
+			if (rc < 0)
+				goto err;
+
+			/* Control upconverter GPIO switch on newer batches */
+			rc = rtlsdr_set_bias_tee_gpio(priv->rtl_dev, 5, !cable_2_in);
+
 			if (rc < 0)
 				goto err;