diff --git a/chirp/drivers/baofeng_uv17.py b/chirp/drivers/baofeng_uv17.py
index 09b7da0ec..52cd3219a 100644
--- a/chirp/drivers/baofeng_uv17.py
+++ b/chirp/drivers/baofeng_uv17.py
@@ -196,7 +196,7 @@ class UV17(baofeng_uv17Pro.UV17Pro):
     LIST_MODE = ["Name", "Frequency"]
     CHANNELS = 999
 
-    MEM_DEFS = """
+    CHANNEL_DEF = """
     struct channel {
       lbcd rxfreq[4];
       lbcd txfreq[4];
@@ -215,6 +215,8 @@ class UV17(baofeng_uv17Pro.UV17Pro):
          scan:1;
       u8 unknown4;
     };
+    """
+    MEM_DEFS = """
     struct channelname {
       char name[11];
     };
@@ -320,7 +322,7 @@ class UV17(baofeng_uv17Pro.UV17Pro):
 
     struct ani ani;
     """
-    MEM_FORMAT = MEM_DEFS + MEM_LAYOUT
+    MEM_FORMAT = CHANNEL_DEF + MEM_DEFS + MEM_LAYOUT
 
     def _make_frame(self, cmd, addr, length, data=""):
         """Pack the info in the header format"""
diff --git a/chirp/drivers/baofeng_uv17Pro.py b/chirp/drivers/baofeng_uv17Pro.py
index 99e7af1ed..c2cdf78c7 100644
--- a/chirp/drivers/baofeng_uv17Pro.py
+++ b/chirp/drivers/baofeng_uv17Pro.py
@@ -361,7 +361,7 @@ class UV17Pro(bfc.BaofengCommonHT):
       u8 rpttailclear;
       u8 rpttaildet;
       u8 roger;
-      u8 unknown2;
+      u8 a_or_b_selected; // a=0, b=1
       u8 fmenable;
       u8 chbworkmode:4,
          chaworkmode:4;
diff --git a/chirp/drivers/btech.py b/chirp/drivers/btech.py
index d40017538..f5a384881 100644
--- a/chirp/drivers/btech.py
+++ b/chirp/drivers/btech.py
@@ -2548,12 +2548,16 @@ def apply_dmtf_listvalue(setting, obj):
                                           val]))
             dtmf_dec_settings.append(line)
         else:
+            if _mem.dtmf_settings.resettime > 0x4F:
+                val = 0x4F
+            else:
+                val = _mem.dtmf_settings.resettime
             line = RadioSetting(
                 "dtmf_settings.resettime",
                 "Reset time",
                 RadioSettingValueList(LIST_5TONE_RESET,
                                       LIST_5TONE_RESET[
-                                          _mem.dtmf_settings.resettime]))
+                                          val]))
             dtmf_dec_settings.append(line)
 
         if _mem.dtmf_settings.delayproctime > 0x27:
diff --git a/chirp/drivers/ga510.py b/chirp/drivers/ga510.py
index 13d426e8f..1642a9011 100644
--- a/chirp/drivers/ga510.py
+++ b/chirp/drivers/ga510.py
@@ -1141,6 +1141,26 @@ class RadioddityGA510v2(baofeng_uv17.UV17):
     LIST_MODE = ["Name", "Frequency"]
     CHANNELS = 128
 
+    CHANNEL_DEF = """
+      struct channel {
+      lbcd rxfreq[4];
+      lbcd txfreq[4];
+      u8 unused1;
+      ul16 rxtone;
+      ul16 txtone;
+      u8 unknown1:1,
+         bcl:1,
+         pttid:2,
+         unknown2:1,
+         wide:1,
+         lowpower:2;
+      u8 scode:4,
+         unknown3:3,
+         scan:1;
+      u8 unknown4;
+    };
+    """
+
     MEM_LAYOUT = """
     #seekto 0x1000;
     struct settings settings;
@@ -1157,6 +1177,6 @@ class RadioddityGA510v2(baofeng_uv17.UV17):
     #seekto 0x400B;
     struct channelname names1[128];
     """
-    MEM_FORMAT = baofeng_uv17.UV17.MEM_DEFS + MEM_LAYOUT
+    MEM_FORMAT = CHANNEL_DEF + baofeng_uv17.UV17.MEM_DEFS + MEM_LAYOUT
 
     _has_workmode_support = False
diff --git a/chirp/drivers/icf.py b/chirp/drivers/icf.py
index c0acbd668..843204dfe 100644
--- a/chirp/drivers/icf.py
+++ b/chirp/drivers/icf.py
@@ -1034,7 +1034,7 @@ def get_bank_model(self):
             return None
 
 
-def warp_byte_size(inbytes, obw=8, ibw=8):
+def warp_byte_size(inbytes, obw=8, ibw=8, iskip=0, opad=0):
     """Convert between "byte sizes".
 
     This will pack N-bit characters into a sequence of 8-bit bytes,
@@ -1042,17 +1042,23 @@ def warp_byte_size(inbytes, obw=8, ibw=8):
 
     ibw (input bit width) is the width of the storage
     obw (output bit width) is the width of the characters to extract
+    iskip is the number of input padding bits to skip
+    opad is the number of output zero padding bits to add
 
     ibw=8,obw=7 will pull seven-bit characters from a sequence of bytes
     ibw=7,obw=8 will pack seven-bit characters into a sequence of bytes
     """
     if isinstance(inbytes, str):
         inbytes = [ord(x) for x in inbytes]
-    outbit = 0
+    outbit = opad
     tmp = 0
     stripmask = 1 << (ibw - 1)
     for byte in inbytes:
         inbit = 0
+        while iskip:
+            byte = (byte << 1) & 0xFF
+            inbit += 1
+            iskip -= 1
         for i in range(0, max(obw, ibw - inbit)):
             if inbit == ibw:
                 # Move to next char
diff --git a/chirp/drivers/tdh8.py b/chirp/drivers/tdh8.py
index c2adf7cce..1d44e9159 100644
--- a/chirp/drivers/tdh8.py
+++ b/chirp/drivers/tdh8.py
@@ -741,14 +741,12 @@
 
 # AB CHANNEL
 A_OFFSET = ["Off", "-", "+"]
-A_TX_POWER = ["Low", "Mid", "High"]
 A_BAND = ["Wide", "Narrow"]
 A_BUSYLOCK = ["Off", "On"]
 A_SPEC_QTDQT = ["Off", "On"]
 A_WORKMODE = ["VFO", "VFO+CH", "CH Mode"]
 
 B_OFFSET = ["Off", "-", "+"]
-B_TX_POWER = ["Low", "Mid", "High"]
 B_BAND = ["Wide", "Narrow"]
 B_BUSYLOCK = ["Off", "On"]
 B_SPEC_QTDQT = ["Off", "On"]
@@ -1719,9 +1717,15 @@ def _filter(name):
                                   A_OFFSET, A_OFFSET[_vfoa.offset]))
             abblock.append(rs)
 
+            try:
+                self._tx_power[_vfoa.lowpower]
+                cur_a_power = _vfoa.lowpower
+            except IndexError:
+                cur_a_power = 0
             rs = RadioSetting("lowpower", "A TX Power",
                               RadioSettingValueList(
-                                  A_TX_POWER, A_TX_POWER[_vfoa.lowpower]))
+                                  [str(x) for x in self._tx_power],
+                                  str(self._tx_power[cur_a_power])))
             abblock.append(rs)
 
             rs = RadioSetting("wide", "A Band",
@@ -1781,9 +1785,15 @@ def _filter(name):
                                   B_OFFSET, B_OFFSET[_vfob.offsetb]))
             abblock.append(rs)
 
+            try:
+                self._tx_power[_vfob.lowpowerb]
+                cur_b_power = _vfob.lowpowerb
+            except IndexError:
+                cur_b_power = 0
             rs = RadioSetting("lowpowerb", "B TX Power",
                               RadioSettingValueList(
-                                  B_TX_POWER, B_TX_POWER[_vfob.lowpowerb]))
+                                  [str(x) for x in self._tx_power],
+                                  str(self._tx_power[cur_b_power])))
             abblock.append(rs)
 
             rs = RadioSetting("wideb", "B Band",
@@ -2465,8 +2475,17 @@ class TDH8_HAM(TDH8):
     MODEL = "TD-H8-HAM"
     ident_mode = b'P31185\xff\xff'
     _ham = True
+    _rxbands = [(136000000, 143999000), (149000001, 174000000),
+                (400000000, 419999000), (451000001, 521000000)]
     _txbands = [(144000000, 149000000), (420000000, 451000000)]
 
+    def check_set_memory_immutable_policy(self, existing, new):
+        # Immutable duplex handling is done in set_memory, so no need
+        # to ever obsess over it here.
+        if 'duplex' in existing.immutable:
+            existing.immutable.remove('duplex')
+        super().check_set_memory_immutable_policy(existing, new)
+
 
 @directory.register
 @directory.detected_by(TDH8)
diff --git a/chirp/share/model_alias_map.yaml b/chirp/share/model_alias_map.yaml
index 2b1bdd2a0..cde22e1d9 100644
--- a/chirp/share/model_alias_map.yaml
+++ b/chirp/share/model_alias_map.yaml
@@ -227,6 +227,8 @@ R&L Electronics:
 Radioddity:
 - alt: Radioddity UV-5G
   model: UV-5X
+- alt: AnyTone 5888UV
+  model: DB50
 Radtel:
 - alt: Retevis RT22
   model: RT-10
diff --git a/tests/unit/test_chirp_common.py b/tests/unit/test_chirp_common.py
index c0dd4ecd4..60f068d36 100644
--- a/tests/unit/test_chirp_common.py
+++ b/tests/unit/test_chirp_common.py
@@ -769,6 +769,7 @@ class TestOverrideRules(base.BaseTest):
         'Baofeng_5RM',
         'Baofeng_K5-Plus',
         'Radtel_RT-730',
+        'TIDRADIO_TD-H8-HAM',
     ]
 
     def _test_radio_override_immutable_policy(self, rclass):
diff --git a/tests/unit/test_icf.py b/tests/unit/test_icf.py
index 08bd74d04..cc30ee23b 100644
--- a/tests/unit/test_icf.py
+++ b/tests/unit/test_icf.py
@@ -159,3 +159,32 @@ def test_pack(self):
         f = icf.IcfFrame(icf.ADDR_PC, icf.ADDR_RADIO, icf.CMD_CLONE_ID)
         f.payload = b'\x01\x02'
         self.assertEqual(b'\xfe\xfe\xee\xef\xe0\x01\x02\xfd', f.pack())
+
+
+class TestICFUtil(unittest.TestCase):
+    def test_warp_byte_size(self):
+        # 4-bit chars to 8-bit bytes
+        input = bytes([0x12, 0x34])
+        output = bytes(icf.warp_byte_size(input, obw=4))
+        self.assertEqual(b'\x01\x02\x03\x04', output)
+
+    def test_warp_byte_size_skip(self):
+        # 4-bit chars to 8-bit bytes with 4 bits of padding ignored
+        input = bytes([0x12, 0x34])
+        output = bytes(icf.warp_byte_size(input, obw=4, iskip=4))
+        self.assertEqual(b'\x02\x03\x04', output)
+
+    def test_warp_byte_size_pad(self):
+        # 8-bit bytes to 4-bit chars, with 4 bits of padding added
+        input = bytes([2, 3, 4])
+        output = bytes(icf.warp_byte_size(input, ibw=4, opad=4))
+        self.assertEqual(b'\x02\x34', output)
+
+    def test_warp_byte_size_symmetric_padded(self):
+        # Make sure we can go from 8->4-> with padding and get back what we
+        # put in
+        ref = bytes([1, 2, 3, 4, 5, 6])
+        stored = bytes(icf.warp_byte_size(bytes(ref), ibw=6, opad=4))
+        self.assertEqual(5, len(bytes(stored)))
+        self.assertEqual(ref,
+                         bytes(icf.warp_byte_size(stored, obw=6, iskip=4)))