diff --git a/executables/nr-uesoftmodem.h b/executables/nr-uesoftmodem.h
index 51a328fba3c74abf79d277998dcd986e39bb87db..7fad43e897c20ff4ccc3003593974c75ce3da7a4 100644
--- a/executables/nr-uesoftmodem.h
+++ b/executables/nr-uesoftmodem.h
@@ -54,8 +54,6 @@
     {"usrp-args",                CONFIG_HLP_USRP_ARGS,   0,              strptr:(char **)&usrp_args,         defstrval:"type=b200", TYPE_STRING,   0}      \
   }
 
-#define DEFAULT_DLF 0
-
 /*----------------------------------------------------------------------------------------------------------------------------------------------------*/
 /*                                            command line parameters common to eNodeB and UE                                                         */
 /*   optname                helpstr                 paramflags      XXXptr                                 defXXXval              type         numelt */
@@ -65,7 +63,7 @@
   {"single-thread-disable", CONFIG_HLP_NOSNGLT,     PARAMFLAG_BOOL, iptr:&single_thread_flag,              defintval:1,           TYPE_INT,    0}, \
   {"nr-dlsch-demod-shift",  CONFIG_HLP_DLSHIFT,     0,              iptr:(int32_t *)&nr_dlsch_demod_shift, defintval:0,           TYPE_INT,    0}, \
   {"A" ,                    CONFIG_HLP_TADV,        0,              uptr:&timing_advance,                  defintval:0,           TYPE_UINT,   0}, \
-  {"C" ,                    CONFIG_HLP_DLF,         0,              u64ptr:&(downlink_frequency[0][0]),    defuintval:DEFAULT_DLF,TYPE_UINT64, 0}, \
+  {"C" ,                    CONFIG_HLP_DLF,         0,              u64ptr:&(downlink_frequency[0][0]),    defuintval:0,TYPE_UINT64, 0}, \
   {"a" ,                    CONFIG_HLP_CHOFF,       0,              iptr:&chain_offset,                    defintval:0,           TYPE_INT,    0}, \
   {"d" ,                    CONFIG_HLP_SOFTS,       PARAMFLAG_BOOL, uptr:&do_forms,                        defintval:0,           TYPE_INT,    0}, \
   {"E" ,                    CONFIG_HLP_TQFS,        PARAMFLAG_BOOL, iptr:&threequarter_fs,                 defintval:0,           TYPE_INT,    0}, \
diff --git a/executables/softmodem-common.h b/executables/softmodem-common.h
index a8a05a59715d8f7c0ff0353b0ea7e6cf6eb62b82..f0984056fa5c697be265d4881d5c2a29976ae685 100644
--- a/executables/softmodem-common.h
+++ b/executables/softmodem-common.h
@@ -100,8 +100,6 @@ extern "C"
 
 #define DEFAULT_RFCONFIG_FILE    "/usr/local/etc/syriq/ue.band7.tm1.PRB100.NR40.dat";
 
-#define DEFAULT_DLF 2680000000
-
 #define CMDLINE_PARAMS_DESC {  \
     {"rf-config-file",       CONFIG_HLP_RFCFGF,       0,              strptr:(char **)&RF_CONFIG_FILE,    defstrval:NULL,        TYPE_STRING, sizeof(RF_CONFIG_FILE)},\
     {"phy-test",             CONFIG_HLP_PHYTST,       PARAMFLAG_BOOL, iptr:&PHY_TEST,                     defintval:0,           TYPE_INT,    0},                     \
@@ -109,7 +107,7 @@ extern "C"
     {"clock",                CONFIG_HLP_CLK,          0,              uptr:&CLOCK_SOURCE,                 defintval:0,           TYPE_UINT,   0},                     \
     {"wait-for-sync",        NULL,                    PARAMFLAG_BOOL, iptr:&WAIT_FOR_SYNC,                defintval:0,           TYPE_INT,    0},                     \
     {"single-thread-enable", CONFIG_HLP_NOSNGLT,      PARAMFLAG_BOOL, iptr:&SINGLE_THREAD_FLAG,           defintval:0,           TYPE_INT,    0},                     \
-    {"C" ,                   CONFIG_HLP_DLF,          0,              u64ptr:&(downlink_frequency[0][0]), defuintval:DEFAULT_DLF, TYPE_UINT64,   0},                     \
+    {"C" ,                   CONFIG_HLP_DLF,          0,              u64ptr:&(downlink_frequency[0][0]), defuintval:0, TYPE_UINT64,   0},                     \
     {"a" ,                   CONFIG_HLP_CHOFF,        0,              iptr:&CHAIN_OFFSET,                 defintval:0,           TYPE_INT,    0},                     \
     {"d" ,                   CONFIG_HLP_SOFTS,        PARAMFLAG_BOOL, uptr:(uint32_t *)&do_forms,         defintval:0,           TYPE_INT8,   0},                     \
     {"q" ,                   CONFIG_HLP_STMON,        PARAMFLAG_BOOL, iptr:&opp_enabled,                  defintval:0,           TYPE_INT,    0},                     \