diff --git a/src/auspex/instruments/dsinstruments.py b/src/auspex/instruments/dsinstruments.py
index 08431ca9..334f4289 100644
--- a/src/auspex/instruments/dsinstruments.py
+++ b/src/auspex/instruments/dsinstruments.py
@@ -8,7 +8,7 @@
 
 # Drivers for controling the DS Instruments puresine rf signal generators
 
-__all__ = ['DSInstrumentsSG12000', 'DSInstrumentsSG12000Pro']
+__all__ = ['DSInstrumentsSG12000', 'DSInstrumentsSG12000Pro','DAT64H']
 
 from auspex.log import logger
 from .instrument import SCPIInstrument, MetaInstrument, StringCommand, FloatCommand, IntCommand, RampCommand, BoolCommand
@@ -141,3 +141,38 @@ def detect_ext_ref(self):
 
     def temp(self): #Is this working?
         return self.interface.query("*TEMPC?")
+
+class DAT64H(SCPIInstrument,metaclass=MakeSettersGetters):
+
+    instrument_type = "Tunable Attenuator"
+    bool_map = {'ON':1, 'OFF':0}
+    bool_map_inv = {1:'ON', 0:'OFF'}
+
+    attenuation = FloatCommand(scpi_string="ATT")
+    step = FloatCommand(scpi_string="STEP")
+
+    def __init__(self, resource_name=None, *args, **kwargs):
+        super(DAT64H, self).__init__(resource_name, *args, **kwargs)
+
+    def connect(self, resource_name=None, interface_type="VISA"):
+        if resource_name is not None:
+            self.resource_name = resource_name
+        super(DAT64H, self).connect(resource_name=self.resource_name, interface_type=interface_type)
+        self.interface._resource.read_termination = u"\r\n"
+        self.interface._resource.write_termination = u"\r\n"
+        self.interface._resource.timeout = 1000
+        self.interface._resource.baud_rate = 115200
+
+    def increment(self):
+        self.interface.write("INCR")
+
+    def decrement(self):
+        self.interface.write("DECR")
+
+    @property
+    def attenuation(self):
+        return self.interface.query('ATT?')
+        
+    @attenuation.setter
+    def attenuation(self,value):
+        self.interface.write(f'ATT {value}')
diff --git a/src/auspex/instruments/keysight.py b/src/auspex/instruments/keysight.py
index 46e65cfa..144200ad 100644
--- a/src/auspex/instruments/keysight.py
+++ b/src/auspex/instruments/keysight.py
@@ -202,7 +202,8 @@ class KeysightM8190A(SCPIInstrument):
 
     continuous_mode = StringCommand(scpi_string=":INIT:CONT:STAT", value_map={True:"1", False:"0"})
     gate_mode       = StringCommand(scpi_string=":INIT:GATE:STAT", value_map={True:"1", False:"0"})
-
+    trigger_frequency = FloatCommand(scpi_string=":ARM:TRIG:FREQ")
+    
     def __init__(self, resource_name, *args, **kwargs):
         super(KeysightM8190A, self).__init__(resource_name, *args, **kwargs)
         self.name = "KeysightM8190A AWG"
@@ -329,3 +330,4 @@ def advance(self, channel=1):
 
     def trigger(self, channel=1):
         self.interface.write(":TRIG:BEG{:d}".format(channel))
+