diff --git a/meson.build b/meson.build
index 41597a3b..0bc7a0bd 100644
--- a/meson.build
+++ b/meson.build
@@ -249,7 +249,7 @@ gd77_src = src + mk22fn512_src + ['platform/targets/GD-77/platform.c',
                                   'platform/drivers/NVM/spiFlash_GDx.c',
                                   'platform/drivers/NVM/nvmem_GDx.c',
                                   'platform/drivers/ADC/ADC0_GDx.c',
-                                  'platform/drivers/baseband/rtx_GDx.c',
+                                  'platform/drivers/baseband/radio_GDx.c',
                                   'platform/drivers/baseband/AT1846S.c',
                                   'platform/drivers/baseband/HR_C6000.c',
                                   'platform/drivers/baseband/interfaces_GDx.c']
@@ -267,7 +267,7 @@ dm1801_src = src + mk22fn512_src + ['platform/targets/DM-1801/platform.c',
                                     'platform/drivers/NVM/spiFlash_GDx.c',
                                     'platform/drivers/NVM/nvmem_GDx.c',
                                     'platform/drivers/ADC/ADC0_GDx.c',
-                                    'platform/drivers/baseband/rtx_GDx.c',
+                                    'platform/drivers/baseband/radio_GDx.c',
                                     'platform/drivers/baseband/AT1846S.c',
                                     'platform/drivers/baseband/HR_C6000.c',
                                     'platform/drivers/baseband/interfaces_GDx.c']
diff --git a/platform/drivers/baseband/radio_GDx.c b/platform/drivers/baseband/radio_GDx.c
new file mode 100644
index 00000000..102603fc
--- /dev/null
+++ b/platform/drivers/baseband/radio_GDx.c
@@ -0,0 +1,296 @@
+/***************************************************************************
+ *   Copyright (C) 2021 by Federico Amedeo Izzo IU2NUO,                    *
+ *                         Niccolò Izzo IU2KIN                             *
+ *                         Frederik Saraci IU2NRO                          *
+ *                         Silvano Seva IU2KWO                             *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 3 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, see <http://www.gnu.org/licenses/>   *
+ ***************************************************************************/
+
+#include <interfaces/platform.h>
+#include <interfaces/radio.h>
+#include <interfaces/gpio.h>
+#include <calibInfo_GDx.h>
+#include <calibUtils.h>
+#include <hwconfig.h>
+#include <string.h>
+#include "HR_C6000.h"
+#include "AT1846S.h"
+
+const gdxCalibration_t *calData;  /* Pointer to calibration data        */
+
+int8_t currRxBand = -1; /* Current band for RX                                 */
+int8_t currTxBand = -1; /* Current band for TX                                 */
+uint8_t txpwr_lo = 0;   /* APC voltage for TX output power control, low power  */
+uint8_t txpwr_hi = 0;   /* APC voltage for TX output power control, high power */
+
+
+
+int8_t _getBandFromFrequency(freq_t freq)
+{
+    if((freq >= FREQ_LIMIT_VHF_LO) && (freq <= FREQ_LIMIT_VHF_HI)) return 0;
+    if((freq >= FREQ_LIMIT_UHF_LO) && (freq <= FREQ_LIMIT_UHF_HI)) return 1;
+    return -1;
+}
+
+void radio_init()
+{
+    /*
+     * Load calibration data
+     */
+    calData = ((const gdxCalibration_t *) platform_getCalibrationData());
+
+    /*
+     * Configure RTX GPIOs
+     */
+    gpio_setMode(VHF_LNA_EN, OUTPUT);
+    gpio_setMode(UHF_LNA_EN, OUTPUT);
+    gpio_setMode(VHF_PA_EN,  OUTPUT);
+    gpio_setMode(UHF_PA_EN,  OUTPUT);
+
+    gpio_clearPin(VHF_LNA_EN);  /* Turn VHF LNA off */
+    gpio_clearPin(UHF_LNA_EN);  /* Turn UHF LNA off */
+    gpio_clearPin(VHF_PA_EN);   /* Turn VHF PA off  */
+    gpio_clearPin(UHF_PA_EN);   /* Turn UHF PA off  */
+
+    /*
+     * Enable and configure DAC for PA drive control
+     */
+    SIM->SCGC6 |= SIM_SCGC6_DAC0_MASK;
+    DAC0->DAT[0].DATL = 0;
+    DAC0->DAT[0].DATH = 0;
+    DAC0->C0   |= DAC_C0_DACRFS_MASK    /* Reference voltage is Vref2 */
+               |  DAC_C0_DACEN_MASK;    /* Enable DAC                 */
+
+    /*
+     * Enable and configure both AT1846S and HR_C6000
+     */
+    AT1846S_init();
+    C6000_init();
+}
+
+void radio_terminate()
+{
+    radio_disableRtx();
+    C6000_terminate();
+}
+
+void radio_setBandwidth(const enum bandwidth bw)
+{
+    switch(bw)
+    {
+        case BW_12_5:
+            AT1846S_setBandwidth(AT1846S_BW_12P5);
+            break;
+
+        case BW_20:
+        case BW_25:
+            AT1846S_setBandwidth(AT1846S_BW_25);
+            break;
+
+        default:
+            break;
+    }
+}
+
+void radio_setOpmode(const enum opmode mode)
+{
+    switch(mode)
+    {
+        case FM:
+            gpio_setPin(RX_AUDIO_MUX);          /* Audio out to amplifier */
+            gpio_clearPin(TX_AUDIO_MUX);        /* Audio in to microphone */
+            AT1846S_setOpMode(AT1846S_OP_FM);
+            break;
+
+        case DMR:
+            gpio_clearPin(RX_AUDIO_MUX);        /* Audio out to HR_C6000  */
+            gpio_setPin(TX_AUDIO_MUX);          /* Audio in from HR_C6000 */
+            AT1846S_setOpMode(AT1846S_OP_FM);
+            break;
+
+        default:
+            break;
+    }
+}
+
+void radio_setVcoFrequency(const freq_t frequency, const bool isTransmitting)
+{
+    AT1846S_setFrequency(frequency);
+}
+
+void radio_setCSS(const tone_t rxCss, const tone_t txCss)
+{
+    (void) rxCss;
+    (void) txCss;
+}
+
+bool radio_checkRxDigitalSquelch()
+{
+    return true;
+}
+
+void radio_enableRx()
+{
+    gpio_clearPin(VHF_LNA_EN);
+    gpio_clearPin(UHF_LNA_EN);
+    gpio_clearPin(VHF_PA_EN);
+    gpio_clearPin(UHF_PA_EN);
+
+    if(currRxBand < 0) return;
+
+    AT1846S_setFuncMode(AT1846S_RX);
+
+    if(currRxBand == 0)
+    {
+        gpio_setPin(VHF_LNA_EN);
+    }
+    else
+    {
+        gpio_setPin(UHF_LNA_EN);
+    }
+}
+
+void radio_enableTx(const float txPower, const bool enableCss)
+{
+    gpio_clearPin(VHF_LNA_EN);
+    gpio_clearPin(UHF_LNA_EN);
+    gpio_clearPin(VHF_PA_EN);
+    gpio_clearPin(UHF_PA_EN);
+
+    if(currTxBand < 0) return;
+
+    /*
+     * TODO: increase granularity
+     */
+    uint16_t power = (txPower > 1.0f) ? txpwr_hi : txpwr_lo;
+    power *= 16;
+    DAC0->DAT[0].DATH = (power >> 8) & 0xFF;
+    DAC0->DAT[0].DATL =  power & 0xFF;
+
+    AT1846S_setFuncMode(AT1846S_TX);
+
+    if(currTxBand == 0)
+    {
+        gpio_setPin(VHF_PA_EN);
+    }
+    else
+    {
+        gpio_setPin(UHF_PA_EN);
+    }
+
+    (void) enableCss;
+}
+
+void radio_disableRtx()
+{
+    gpio_clearPin(VHF_LNA_EN);
+    gpio_clearPin(UHF_LNA_EN);
+    gpio_clearPin(VHF_PA_EN);
+    gpio_clearPin(UHF_PA_EN);
+    AT1846S_setFuncMode(AT1846S_OFF);
+}
+
+void radio_updateCalibrationParams(const rtxStatus_t *rtxCfg)
+{
+    currRxBand = _getBandFromFrequency(rtxCfg->rxFrequency);
+    currTxBand = _getBandFromFrequency(rtxCfg->txFrequency);
+
+    if((currRxBand < 0) || (currTxBand < 0)) return;
+
+    /*
+     * Parameters dependent on RX frequency
+     */
+    const bandCalData_t *cal = &(calData->data[currRxBand]);
+
+    AT1846S_setPgaGain(cal->PGA_gain);
+    AT1846S_setMicGain(cal->analogMicGain);
+    AT1846S_setAgcGain(cal->rxAGCgain);
+    AT1846S_setRxAudioGain(cal->rxAudioGainWideband, cal->rxAudioGainNarrowband);
+    AT1846S_setPaDrive(cal->PA_drv);
+
+    if(rtxCfg->bandwidth == BW_12_5)
+    {
+        AT1846S_setTxDeviation(cal->mixGainNarrowband);
+        AT1846S_setNoise1Thresholds(cal->noise1_HighTsh_Nb, cal->noise1_LowTsh_Nb);
+        AT1846S_setNoise2Thresholds(cal->noise2_HighTsh_Nb, cal->noise2_LowTsh_Nb);
+        AT1846S_setRssiThresholds(cal->rssi_HighTsh_Nb, cal->rssi_LowTsh_Nb);
+    }
+    else
+    {
+        AT1846S_setTxDeviation(cal->mixGainWideband);
+        AT1846S_setNoise1Thresholds(cal->noise1_HighTsh_Wb, cal->noise1_LowTsh_Wb);
+        AT1846S_setNoise2Thresholds(cal->noise2_HighTsh_Wb, cal->noise2_LowTsh_Wb);
+        AT1846S_setRssiThresholds(cal->rssi_HighTsh_Wb, cal->rssi_LowTsh_Wb);
+    }
+
+    C6000_setDacRange(cal->dacDataRange);
+    C6000_setMod2Bias(cal->mod2Offset);
+    C6000_setModOffset(cal->mod1Bias);
+
+    uint8_t sqlTresh = 0;
+    if(currRxBand == 0)
+    {
+        sqlTresh = interpCalParameter(rtxCfg->rxFrequency, calData->vhfCalPoints,
+                                      cal->analogSqlThresh, 8);
+    }
+    else
+    {
+        sqlTresh = interpCalParameter(rtxCfg->rxFrequency, calData->uhfMod1CalPoints,
+                                      cal->analogSqlThresh, 8);
+    }
+
+    AT1846S_setAnalogSqlThresh(sqlTresh);
+
+    /*
+     * Parameters dependent on TX frequency
+     */
+    uint8_t mod1Amp  = 0;
+
+    if(currTxBand == 0)
+    {
+        /* VHF band */
+        txpwr_lo = interpCalParameter(rtxCfg->txFrequency, calData->vhfCalPoints,
+                                      calData->data[currTxBand].txLowPower, 8);
+
+        txpwr_hi = interpCalParameter(rtxCfg->txFrequency, calData->vhfCalPoints,
+                                      calData->data[currTxBand].txHighPower, 8);
+
+        mod1Amp = interpCalParameter(rtxCfg->txFrequency, calData->vhfCalPoints,
+                                     cal->mod1Amplitude, 8);
+    }
+    else
+    {
+        /* UHF band */
+        txpwr_lo = interpCalParameter(rtxCfg->txFrequency, calData->uhfPwrCalPoints,
+                                      calData->data[currTxBand].txLowPower, 16);
+
+        txpwr_hi = interpCalParameter(rtxCfg->txFrequency, calData->uhfPwrCalPoints,
+                                      calData->data[currTxBand].txHighPower, 16);
+
+        mod1Amp = interpCalParameter(rtxCfg->txFrequency, calData->uhfMod1CalPoints,
+                                     cal->mod1Amplitude, 8);
+    }
+
+    C6000_setMod1Amplitude(mod1Amp);
+}
+
+float radio_getRssi(const freq_t rxFreq)
+{
+    (void) rxFreq;
+
+    uint16_t val = AT1846S_readRSSI();
+    int8_t rssi   = -151 + (val >> 8);
+    return ((float) rssi);
+}