diff --git a/artiq/coredevice/phaser.py b/artiq/coredevice/phaser.py
index 94012ad69..4afe0c992 100644
--- a/artiq/coredevice/phaser.py
+++ b/artiq/coredevice/phaser.py
@@ -9,6 +9,10 @@ from artiq.coredevice.trf372017 import TRF372017
 
 
 PHASER_BOARD_ID = 19
+
+PHASER_GW_BASE = 1
+PHASER_GW_MIQRO = 2
+
 PHASER_ADDR_BOARD_ID = 0x00
 PHASER_ADDR_HW_REV = 0x01
 PHASER_ADDR_GW_REV = 0x02
@@ -222,7 +226,7 @@ class Phaser:
 
     def __init__(self, dmgr, channel_base, miso_delay=1, tune_fifo_offset=True,
                  clk_sel=0, sync_dly=0, dac=None, trf0=None, trf1=None,
-                 mode="base", core_device="core"):
+                 core_device="core"):
         self.channel_base = channel_base
         self.core = dmgr.get(core_device)
         # TODO: auto-align miso-delay in phy
@@ -235,6 +239,7 @@ class Phaser:
         self.clk_sel = clk_sel
         self.tune_fifo_offset = tune_fifo_offset
         self.sync_dly = sync_dly
+        self.gw_rev = -1  # discovered in init()
 
         self.dac_mmap = DAC34H84(dac).get_mmap()
 
@@ -258,12 +263,10 @@ class Phaser:
         delay(.1*ms)  # slack
         is_baseband = hw_rev & PHASER_HW_REV_VARIANT
 
-        gw_rev = self.read8(PHASER_ADDR_GW_REV)
+        self.gw_rev = self.read8(PHASER_ADDR_GW_REV)
         if debug:
-            print("gw_rev:", gw_rev)
+            print("gw_rev:", self.gw_rev)
             self.core.break_realtime()
-        is_base = gw_rev == 1
-        is_miqro = gw_rev == 2
         delay(.1*ms)  # slack
 
         # allow a few errors during startup and alignment since boot
@@ -384,7 +387,7 @@ class Phaser:
 
             channel.set_servo(profile=0, enable=0, hold=1)
 
-            if is_base:
+            if self.gw_rev == PHASER_GW_BASE:
                 # test oscillators and DUC
                 for i in range(len(channel.oscillator)):
                     oscillator = channel.oscillator[i]
@@ -412,7 +415,7 @@ class Phaser:
                         abs(data_i - data_q) > 2):
                     raise ValueError("DUC+oscillator phase/amplitude test failed")
 
-            if is_miqro:
+            if self.gw_rev == PHASER_GW_MIQRO:
                 channel.miqro.reset()
 
             if is_baseband:
diff --git a/artiq/frontend/artiq_ddb_template.py b/artiq/frontend/artiq_ddb_template.py
index 503f4862e..5459756fe 100755
--- a/artiq/frontend/artiq_ddb_template.py
+++ b/artiq/frontend/artiq_ddb_template.py
@@ -560,6 +560,12 @@ class PeripheralManager:
 
     def process_phaser(self, rtio_offset, peripheral):
         mode = peripheral.get("mode", "base")
+        if mode == "miqro":
+            dac = ', "dac": {"pll_m": 16, "pll_n": 3, "interpolation": 2}'
+            n_channels = 3
+        else:
+            dac = ""
+            n_channels = 5
         self.gen("""
             device_db["{name}"] = {{
                 "type": "local",
@@ -567,15 +573,13 @@ class PeripheralManager:
                 "class": "Phaser",
                 "arguments": {{
                     "channel_base": 0x{channel:06x},
-                    "miso_delay": 1,
-                    "mode": "{mode}"
+                    "miso_delay": 1{dac}
                 }}
             }}""",
             name=self.get_name("phaser"),
-            mode=mode,
+            dac=dac,
             channel=rtio_offset)
-        rtio_channels = {"base": 5, "miqro": 3}[mode]
-        return rtio_channels
+        return n_channels
 
     def process_hvamp(self, rtio_offset, peripheral):
         hvamp_name = self.get_name("hvamp")
diff --git a/artiq/frontend/artiq_sinara_tester.py b/artiq/frontend/artiq_sinara_tester.py
index a4f999029..fea05bbcd 100755
--- a/artiq/frontend/artiq_sinara_tester.py
+++ b/artiq/frontend/artiq_sinara_tester.py
@@ -570,20 +570,33 @@ class SinaraTester(EnvExperiment):
         self.core.break_realtime()
         phaser.init()
         delay(1*ms)
-        phaser.channel[0].set_duc_frequency(duc)
-        phaser.channel[0].set_duc_cfg()
-        phaser.channel[0].set_att(6*dB)
-        phaser.channel[1].set_duc_frequency(-duc)
-        phaser.channel[1].set_duc_cfg()
-        phaser.channel[1].set_att(6*dB)
-        phaser.duc_stb()
-        delay(1*ms)
-        for i in range(len(osc)):
-            phaser.channel[0].oscillator[i].set_frequency(osc[i])
-            phaser.channel[0].oscillator[i].set_amplitude_phase(.2)
-            phaser.channel[1].oscillator[i].set_frequency(-osc[i])
-            phaser.channel[1].oscillator[i].set_amplitude_phase(.2)
+        if phaser.gw_rev == 1:  # base
+            phaser.channel[0].set_duc_frequency(duc)
+            phaser.channel[0].set_duc_cfg()
+            phaser.channel[0].set_att(6*dB)
+            phaser.channel[1].set_duc_frequency(-duc)
+            phaser.channel[1].set_duc_cfg()
+            phaser.channel[1].set_att(6*dB)
+            phaser.duc_stb()
             delay(1*ms)
+            for i in range(len(osc)):
+                phaser.channel[0].oscillator[i].set_frequency(osc[i])
+                phaser.channel[0].oscillator[i].set_amplitude_phase(.2)
+                phaser.channel[1].oscillator[i].set_frequency(-osc[i])
+                phaser.channel[1].oscillator[i].set_amplitude_phase(.2)
+                delay(1*ms)
+        elif phaser.gw_rev == 2:  # miqro
+            for ch in range(2):
+                delay(1*ms)
+                phaser.channel[ch].set_att(6*dB)
+                phaser.channel[ch].miqro.set_window(
+                    start=0x00, iq=[[1., 0.]], order=0, tail=0)
+                sign = 1. - 2.*ch
+                for i in range(len(osc)):
+                    phaser.channel[ch].miqro.set_profile(osc, profile=1,
+                        frequency=sign*(duc + osc[i]), amplitude=1./len(osc))
+                phaser.channel[ch].miqro.pulse(
+                    window=0x000, profiles=[1 for _ in range(len(osc))])
 
     @kernel
     def phaser_led_wave(self, phasers):