For QRPLabs ignore the IF return length as the differenet models can't agree on the length.

QMX adds an extra space on the end with firmware 1_00_09
https://github.com/Hamlib/Hamlib/issues/1372

rigs/kenwood/kenwood.c

@@ -719,6 +719,8 @@ int kenwood_safe_transaction(RIG *rig, const char *cmd, char *buf,
         if (checklen && length != expected) /* worth retrying as some rigs
                                    occasionally send short results */
         {
+            // QRPLABS can't seem top decide if they give 37 or 38 bytes for IF command
+            if (strncmp(cmd,"IF",2)==0 && rig->caps->rig_model == RIG_MODEL_QRPLABS) break;
             struct kenwood_priv_data *priv = rig->state.priv;
             rig_debug(RIG_DEBUG_ERR,
                       "%s: wrong answer; len for cmd %s: expected = %d, got %d\n",

rigs/kenwood/kenwood.h

@@ -28,7 +28,7 @@
 #include "token.h"
 #include "idx_builtin.h"
 
-#define BACKEND_VER "20230626"
+#define BACKEND_VER "20230821"
 
 #define EOM_KEN ';'
 #define EOM_TH '\r'

simulators/Makefile.am

@@ -8,7 +8,7 @@ DISTCLEANFILES =
 
 bin_PROGRAMS = 
 
-check_PROGRAMS = simelecraft simicgeneric simkenwood simyaesu simic9100 simic9700 simft991 simftdx1200 simftdx3000 simjupiter simpowersdr simid5100 simft736 simftdx5000 simtmd700 simrotorez simspid simft817 simts590 simft847 simic7300 simic7000 simic7100 simic7200 simatd578 simic905 simts450 simic7600 simic7610 simic705 simts950 simts990 simic7851 simftdx101 simxiegug90
+check_PROGRAMS = simelecraft simicgeneric simkenwood simyaesu simic9100 simic9700 simft991 simftdx1200 simftdx3000 simjupiter simpowersdr simid5100 simft736 simftdx5000 simtmd700 simrotorez simspid simft817 simts590 simft847 simic7300 simic7000 simic7100 simic7200 simatd578 simic905 simts450 simic7600 simic7610 simic705 simts950 simts990 simic7851 simftdx101 simxiegug90 simqrplabs
 
 simelecraft_SOURCES = simelecraft.c 
 simkenwood_SOURCES = simkenwood.c