From 04f5195cfd68df95bdaaa185b577555390f1276c Mon Sep 17 00:00:00 2001
From: Mike Black W9MDB <mdblack98@yahoo.com>
Date: Sat, 17 Dec 2022 10:19:46 -0600
Subject: [PATCH] Do not reset cache for unidirectional rigs
 https://github.com/Hamlib/Hamlib/issues/1187

---
 src/rig.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/rig.c b/src/rig.c
index f5c792fd8..71f321383 100644
--- a/src/rig.c
+++ b/src/rig.c
@@ -1895,7 +1895,12 @@ int HAMLIB_API rig_set_freq(RIG *rig, vfo_t vfo, freq_t freq)
 #endif
            )
         {
-            rig_set_cache_freq(rig, RIG_VFO_ALL, (freq_t)0);
+            // Unidirectional rigs do not reset cache
+            if (rig->caps->rig_model != RIG_MODEL_FT736R)
+            {
+                rig_set_cache_freq(rig, RIG_VFO_ALL, (freq_t)0);
+            }
+
             HAMLIB_TRACE;
             retcode = rig_get_freq(rig, vfo, &freq_new);