diff --git a/src/bin/dual-iir.rs b/src/bin/dual-iir.rs
index c4ef154..e8f12a0 100644
--- a/src/bin/dual-iir.rs
+++ b/src/bin/dual-iir.rs
@@ -103,7 +103,7 @@ const APP: () = {
         stabilizer.dacs.1.start();
 
         // Start sampling ADCs.
-        //stabilizer.adc_dac_timer.start();
+        stabilizer.adc_dac_timer.start();
 
         c.schedule.telemetry(c.start).unwrap();
 
@@ -231,16 +231,16 @@ const APP: () = {
 
         // Serialize telemetry outside of a critical section to prevent blocking the processing
         // task.
-        let _telemetry = miniconf::serde_json_core::to_string::<
+        let telemetry = miniconf::serde_json_core::to_string::<
             heapless::consts::U256,
             _,
         >(&telemetry)
         .unwrap();
 
-        //c.resources.mqtt_interface.client(|client| {
-        //    // TODO: Incorporate current MQTT prefix instead of hard-coded value.
-        //    client.publish("dt/sinara/dual-iir/telemetry", telemetry.as_bytes(), minimq::QoS::AtMostOnce, &[]).ok()
-        //});
+        c.resources.mqtt_interface.client(|client| {
+            // TODO: Incorporate current MQTT prefix instead of hard-coded value.
+            client.publish("dt/sinara/dual-iir/telemetry", telemetry.as_bytes(), minimq::QoS::AtMostOnce, &[]).ok()
+        });
 
         // Schedule the telemetry task in the future.
         c.schedule
diff --git a/src/hardware/system_timer.rs b/src/hardware/system_timer.rs
index 85938ba..b964a67 100644
--- a/src/hardware/system_timer.rs
+++ b/src/hardware/system_timer.rs
@@ -10,14 +10,14 @@ impl SystemTimer {
         timer.pause();
         // Have the system timer operate at a tick rate of 10KHz (100uS per tick). With this
         // configuration and a 65535 period, we get an overflow once every 6.5 seconds.
-        timer.set_tick_freq(10.khz());
+        timer.set_tick_freq(1.mhz());
         timer.apply_freq();
 
         timer.resume();
     }
 
     pub fn ticks_from_secs(secs: u32) -> i32 {
-        (secs * 10_000) as i32
+        (secs * 1_000_000) as i32
     }
 }
 
@@ -27,7 +27,7 @@ impl rtic::Monotonic for SystemTimer {
     fn ratio() -> rtic::Fraction {
         rtic::Fraction {
             numerator: 1,
-            denominator: 40000,
+            denominator: 400,
         }
     }