diff --git a/ADF7021.h b/ADF7021.h
index 023cb12..bca0df6 100644
--- a/ADF7021.h
+++ b/ADF7021.h
@@ -44,10 +44,10 @@ www.analog.com/media/en/technical-documentation/data-sheets/ADF7021.pdf
 #define ADF7021_PFD              3686400.0
 
 // Deviation of modulator (REG 02)
-#define ADF7021_DEV_DSTAR        42U
-#define ADF7021_DEV_DMR          24U
+#define ADF7021_DEV_DSTAR        43U
+#define ADF7021_DEV_DMR          23U
 #define ADF7021_DEV_YSF          32U
-#define ADF7021_DEV_P25          22U
+#define ADF7021_DEV_P25          21U
 
 // TX/RX CLOCK register (REG 03)
 #define ADF7021_REG3_DSTAR       0x2A4C4193
@@ -129,6 +129,52 @@ www.analog.com/media/en/technical-documentation/data-sheets/ADF7021.pdf
 #define ADF7021_SLICER_TH_YSF    59U
 #define ADF7021_SLICER_TH_P25    45U
 
+/****** Support for 12.2880 MHz TCXO ******/
+#elif defined(ADF7021_12_2880)
+
+// R = 4
+#define ADF7021_PFD              3072000.0
+
+// Deviation of modulator (REG 02)
+#define ADF7021_DEV_DSTAR        51U
+#define ADF7021_DEV_DMR          28U
+#define ADF7021_DEV_YSF          38U
+#define ADF7021_DEV_P25          26U
+
+// TX/RX CLOCK register (REG 03)
+#define ADF7021_REG3_DSTAR       0x29EC4153
+#define ADF7021_REG3_DMR         0x29ECA093
+#define ADF7021_REG3_YSF         0x29ECA093
+#define ADF7021_REG3_P25         0x29ECA093
+
+// Discriminator bandwith, demodulator (REG 04)
+// Bug in ADI evaluation software, use datasheet formula (4FSK)
+#define ADF7021_DISC_BW_DSTAR    522U // K=85
+#define ADF7021_DISC_BW_DMR      492U // K=32
+#define ADF7021_DISC_BW_YSF      430U // K=28
+#define ADF7021_DISC_BW_P25      492U // K=32
+
+// Post demodulator bandwith (REG 04)
+#define ADF7021_POST_BW_DSTAR    10U
+#define ADF7021_POST_BW_DMR      65U
+#define ADF7021_POST_BW_YSF      65U
+#define ADF7021_POST_BW_P25      65U
+
+// IF filter (REG 05)
+#define ADF7021_REG5             0x00001ED5
+
+// IF CAL (fine cal, defaults) (REG 06)
+#define ADF7021_REG6             0x0505EBB6
+
+// AFC (off, defaults) (REG 10)
+#define ADF7021_REG10            0x3296556A
+
+// Slicer threshold for 4FSK demodulator (REG 13)
+#define ADF7021_SLICER_TH_DSTAR  0U
+#define ADF7021_SLICER_TH_DMR    51U
+#define ADF7021_SLICER_TH_YSF    59U
+#define ADF7021_SLICER_TH_P25    45U
+
 #endif
 
 #define bitRead(value, bit) (((value) >> (bit)) & 0x01)
diff --git a/Config.h b/Config.h
index c27d925..1e11576 100644
--- a/Config.h
+++ b/Config.h
@@ -24,6 +24,7 @@
 
 // TCXO of the ADF7021:
 #define ADF7021_14_7456
+// #define ADF7021_12_2880
 // #define ADF7021_19_6800
 
 // Host communication selection: