diff --git a/satrs-core/src/tmtc/mod.rs b/satrs-core/src/tmtc/mod.rs
index 04f4299..0f548a2 100644
--- a/satrs-core/src/tmtc/mod.rs
+++ b/satrs-core/src/tmtc/mod.rs
@@ -7,9 +7,7 @@
 //! routing without the overhead and complication of using message queues. However, it also requires
 #[cfg(feature = "alloc")]
 use downcast_rs::{impl_downcast, Downcast};
-#[cfg(feature = "serde")]
-use serde::{Deserialize, Serialize};
-use spacepackets::{ByteConversionError, SpHeader};
+use spacepackets::SpHeader;
 
 #[cfg(feature = "alloc")]
 pub mod ccsds_distrib;
@@ -24,40 +22,6 @@ pub use pus_distrib::{PusDistributor, PusServiceProvider};
 
 pub type TargetId = u32;
 
-#[derive(Copy, Clone, PartialEq, Eq, Debug, Hash)]
-#[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
-pub struct AddressableId {
-    pub target_id: TargetId,
-    pub unique_id: u32,
-}
-
-impl AddressableId {
-    pub fn from_raw_be(buf: &[u8]) -> Result<Self, ByteConversionError> {
-        if buf.len() < 8 {
-            return Err(ByteConversionError::FromSliceTooSmall {
-                found: buf.len(),
-                expected: 8,
-            });
-        }
-        Ok(Self {
-            target_id: u32::from_be_bytes(buf[0..4].try_into().unwrap()),
-            unique_id: u32::from_be_bytes(buf[4..8].try_into().unwrap()),
-        })
-    }
-
-    pub fn write_to_be_bytes(&self, buf: &mut [u8]) -> Result<usize, ByteConversionError> {
-        if buf.len() < 8 {
-            return Err(ByteConversionError::ToSliceTooSmall {
-                found: buf.len(),
-                expected: 8,
-            });
-        }
-        buf[0..4].copy_from_slice(&self.target_id.to_be_bytes());
-        buf[4..8].copy_from_slice(&self.unique_id.to_be_bytes());
-        Ok(8)
-    }
-}
-
 /// Generic trait for object which can receive any telecommands in form of a raw bytestream, with
 /// no assumptions about the received protocol.
 ///
diff --git a/satrs-example/.gitignore b/satrs-example/.gitignore
new file mode 100644
index 0000000..6f444ac
--- /dev/null
+++ b/satrs-example/.gitignore
@@ -0,0 +1 @@
+/output.log
diff --git a/satrs-example/Cargo.toml b/satrs-example/Cargo.toml
index 1f96d1a..c668cc5 100644
--- a/satrs-example/Cargo.toml
+++ b/satrs-example/Cargo.toml
@@ -17,6 +17,7 @@ zerocopy = "0.6"
 csv = "1"
 num_enum = "0.7"
 thiserror = "1"
+derive-new = "0.5"
 
 [dependencies.satrs-core]
 # version = "0.1.0-alpha.1"
diff --git a/satrs-example/src/hk.rs b/satrs-example/src/hk.rs
index 2e4727a..deae635 100644
--- a/satrs-example/src/hk.rs
+++ b/satrs-example/src/hk.rs
@@ -1,4 +1,37 @@
+use derive_new::new;
+use satrs_core::spacepackets::ByteConversionError;
+
 #[derive(Debug, Copy, Clone, PartialEq, Eq)]
 pub enum AcsHkIds {
     TestMgmSet = 1,
 }
+
+#[derive(Debug, new, Copy, Clone)]
+pub struct HkUniqueId {
+    target_id: u32,
+    set_id: u32,
+}
+
+impl HkUniqueId {
+    #[allow(dead_code)]
+    pub fn target_id(&self) -> u32 {
+        self.target_id
+    }
+    #[allow(dead_code)]
+    pub fn set_id(&self) -> u32 {
+        self.set_id
+    }
+
+    pub fn write_to_be_bytes(&self, buf: &mut [u8]) -> Result<usize, ByteConversionError> {
+        if buf.len() < 8 {
+            return Err(ByteConversionError::ToSliceTooSmall {
+                found: buf.len(),
+                expected: 8,
+            });
+        }
+        buf[0..4].copy_from_slice(&self.target_id.to_be_bytes());
+        buf[4..8].copy_from_slice(&self.set_id.to_be_bytes());
+
+        Ok(8)
+    }
+}
diff --git a/satrs-example/src/lib.rs b/satrs-example/src/lib.rs
index ed2d226..75fc598 100644
--- a/satrs-example/src/lib.rs
+++ b/satrs-example/src/lib.rs
@@ -1,11 +1,68 @@
+use derive_new::new;
 use num_enum::{IntoPrimitive, TryFromPrimitive};
 use satrs_core::events::{EventU32TypedSev, SeverityInfo};
 use satrs_core::objects::ObjectId;
+use satrs_core::spacepackets::ecss::tc::IsPusTelecommand;
+use satrs_core::spacepackets::ecss::PusPacket;
+use satrs_core::spacepackets::{ByteConversionError, CcsdsPacket};
+use satrs_core::tmtc::TargetId;
+use std::fmt;
 use std::net::Ipv4Addr;
+use thiserror::Error;
 
 use satrs_mib::res_code::{ResultU16, ResultU16Info};
 use satrs_mib::resultcode;
 
+pub type Apid = u16;
+
+#[derive(Debug, Error)]
+pub enum TargetIdCreationError {
+    #[error("byte conversion")]
+    ByteConversion(#[from] ByteConversionError),
+    #[error("not enough app data to generate target ID")]
+    NotEnoughAppData(usize),
+}
+
+// TODO: can these stay pub?
+#[derive(Copy, Clone, PartialEq, Eq, Hash, Debug, new)]
+pub struct TargetIdWithApid {
+    pub apid: Apid,
+    pub target: TargetId,
+}
+
+impl fmt::Display for TargetIdWithApid {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        write!(f, "{}, {}", self.apid, self.target)
+    }
+}
+
+impl TargetIdWithApid {
+    pub fn apid(&self) -> Apid {
+        self.apid
+    }
+    pub fn target_id(&self) -> TargetId {
+        self.target
+    }
+}
+
+impl TargetIdWithApid {
+    pub fn from_tc(
+        tc: &(impl CcsdsPacket + PusPacket + IsPusTelecommand),
+    ) -> Result<Self, TargetIdCreationError> {
+        if tc.user_data().len() < 4 {
+            return Err(ByteConversionError::FromSliceTooSmall {
+                found: tc.user_data().len(),
+                expected: 8,
+            }
+            .into());
+        }
+        Ok(Self {
+            apid: tc.apid(),
+            target: u32::from_be_bytes(tc.user_data()[0..4].try_into().unwrap()),
+        })
+    }
+}
+
 pub const PUS_APID: u16 = 0x02;
 
 #[derive(Copy, Clone, PartialEq, Eq, Debug, TryFromPrimitive, IntoPrimitive)]
@@ -20,6 +77,8 @@ pub enum RequestTargetId {
     AcsSubsystem = 1,
 }
 
+pub const AOCS_APID: u16 = 1;
+
 pub const ACS_OBJECT_ID: ObjectId = ObjectId {
     id: RequestTargetId::AcsSubsystem as u32,
     name: "ACS_SUBSYSTEM",
diff --git a/satrs-example/src/logging.rs b/satrs-example/src/logger.rs
similarity index 79%
rename from satrs-example/src/logging.rs
rename to satrs-example/src/logger.rs
index 63788fb..5e7163c 100644
--- a/satrs-example/src/logging.rs
+++ b/satrs-example/src/logger.rs
@@ -4,13 +4,14 @@ pub fn setup_logger() -> Result<(), fern::InitError> {
             out.finish(format_args!(
                 "{}[{}][{}] {}",
                 chrono::Local::now().format("[%Y-%m-%d][%H:%M:%S]"),
-                record.target(), //(std::thread::current().name().expect("unnamed_thread"),
+                std::thread::current().name().expect("unnamed_thread"),
                 record.level(),
                 message
             ))
         })
         .level(log::LevelFilter::Debug)
         .chain(std::io::stdout())
+        .chain(fern::log_file("output.log")?)
         .apply()?;
     Ok(())
 }
diff --git a/satrs-example/src/main.rs b/satrs-example/src/main.rs
index 2a692a3..59d1566 100644
--- a/satrs-example/src/main.rs
+++ b/satrs-example/src/main.rs
@@ -1,6 +1,6 @@
 mod ccsds;
 mod hk;
-mod logging;
+mod logger;
 mod pus;
 mod requests;
 mod tcp;
@@ -12,8 +12,8 @@ use satrs_core::hal::std::tcp_server::ServerConfig;
 use satrs_core::hal::std::udp_server::UdpTcServer;
 
 use crate::ccsds::CcsdsReceiver;
-use crate::hk::AcsHkIds;
-use crate::logging::setup_logger;
+use crate::hk::{AcsHkIds, HkUniqueId};
+use crate::logger::setup_logger;
 use crate::pus::action::{Pus8Wrapper, PusService8ActionHandler};
 use crate::pus::event::Pus5Wrapper;
 use crate::pus::hk::{Pus3Wrapper, PusService3HkHandler};
@@ -50,10 +50,11 @@ use satrs_core::spacepackets::{
     SpHeader,
 };
 use satrs_core::tmtc::tm_helper::SharedTmStore;
-use satrs_core::tmtc::{AddressableId, CcsdsDistributor, TargetId};
+use satrs_core::tmtc::{CcsdsDistributor, TargetId};
 use satrs_core::ChannelId;
 use satrs_example::{
-    RequestTargetId, TcReceiverId, TmSenderId, OBSW_SERVER_ADDR, PUS_APID, SERVER_PORT,
+    RequestTargetId, TargetIdWithApid, TcReceiverId, TmSenderId, OBSW_SERVER_ADDR, PUS_APID,
+    SERVER_PORT,
 };
 use std::collections::HashMap;
 use std::net::{IpAddr, SocketAddr};
@@ -131,7 +132,8 @@ fn main() {
     // Some request are targetable. This map is used to retrieve sender handles based on a target ID.
     let mut request_map = HashMap::new();
     let (acs_thread_tx, acs_thread_rx) = channel::<RequestWithToken>();
-    request_map.insert(RequestTargetId::AcsSubsystem as TargetId, acs_thread_tx);
+    let target_apid = TargetIdWithApid::new(PUS_APID, RequestTargetId::AcsSubsystem as TargetId);
+    request_map.insert(target_apid, acs_thread_tx);
 
     let tc_source_wrapper = PusTcSource {
         tc_store: tc_store.clone(),
@@ -440,9 +442,13 @@ fn main() {
                         match request.targeted_request.request {
                             Request::Hk(hk_req) => match hk_req {
                                 HkRequest::OneShot(unique_id) => {
+                                    // TODO: We should check whether the unique ID is even valid.
                                     let target = request.targeted_request.target_id;
-                                    assert_eq!(target, RequestTargetId::AcsSubsystem as u32);
-                                    if request.targeted_request.target_id
+                                    assert_eq!(
+                                        target.target_id(),
+                                        RequestTargetId::AcsSubsystem as u32
+                                    );
+                                    if request.targeted_request.target_id.target
                                         == AcsHkIds::TestMgmSet as u32
                                     {
                                         let mut sp_header = SpHeader::tm(
@@ -458,11 +464,8 @@ fn main() {
                                             &timestamp,
                                         );
                                         let mut buf: [u8; 8] = [0; 8];
-                                        let addressable_id = AddressableId {
-                                            target_id: target,
-                                            unique_id,
-                                        };
-                                        addressable_id.write_to_be_bytes(&mut buf).unwrap();
+                                        let hk_id = HkUniqueId::new(target.target_id(), unique_id);
+                                        hk_id.write_to_be_bytes(&mut buf).unwrap();
                                         let pus_tm = PusTmCreator::new(
                                             &mut sp_header,
                                             sec_header,
diff --git a/satrs-example/src/pus/action.rs b/satrs-example/src/pus/action.rs
index 76e27cf..d280e69 100644
--- a/satrs-example/src/pus/action.rs
+++ b/satrs-example/src/pus/action.rs
@@ -10,14 +10,13 @@ use satrs_core::pus::{
 };
 use satrs_core::spacepackets::ecss::tc::PusTcReader;
 use satrs_core::spacepackets::ecss::PusPacket;
-use satrs_core::tmtc::TargetId;
-use satrs_example::tmtc_err;
+use satrs_example::{tmtc_err, TargetIdWithApid};
 use std::collections::HashMap;
 use std::sync::mpsc::Sender;
 
 pub struct PusService8ActionHandler {
     psb: PusServiceBase,
-    request_handlers: HashMap<TargetId, Sender<RequestWithToken>>,
+    request_handlers: HashMap<TargetIdWithApid, Sender<RequestWithToken>>,
 }
 
 impl PusService8ActionHandler {
@@ -27,7 +26,7 @@ impl PusService8ActionHandler {
         tm_sender: Box<dyn EcssTmSender>,
         tm_apid: u16,
         verification_handler: StdVerifReporterWithSender,
-        request_handlers: HashMap<TargetId, Sender<RequestWithToken>>,
+        request_handlers: HashMap<TargetIdWithApid, Sender<RequestWithToken>>,
     ) -> Self {
         Self {
             psb: PusServiceBase::new(
@@ -63,7 +62,8 @@ impl PusService8ActionHandler {
                 "Expected at least 4 bytes".into(),
             ));
         }
-        let target_id = u32::from_be_bytes(user_data[0..4].try_into().unwrap());
+        //let target_id = u32::from_be_bytes(user_data[0..4].try_into().unwrap());
+        let target_id = TargetIdWithApid::from_tc(tc).unwrap();
         let action_id = u32::from_be_bytes(user_data[4..8].try_into().unwrap());
         if let Some(sender) = self.request_handlers.get(&target_id) {
             sender
@@ -78,7 +78,7 @@ impl PusService8ActionHandler {
                 .expect("Forwarding action request failed");
         } else {
             let mut fail_data: [u8; 4] = [0; 4];
-            fail_data.copy_from_slice(&target_id.to_be_bytes());
+            fail_data.copy_from_slice(&target_id.target.to_be_bytes());
             self.psb()
                 .verification_handler
                 .borrow_mut()
diff --git a/satrs-example/src/pus/hk.rs b/satrs-example/src/pus/hk.rs
index d4c8bee..a00f5ef 100644
--- a/satrs-example/src/pus/hk.rs
+++ b/satrs-example/src/pus/hk.rs
@@ -11,14 +11,13 @@ use satrs_core::pus::{
 };
 use satrs_core::spacepackets::ecss::tc::PusTcReader;
 use satrs_core::spacepackets::ecss::{hk, PusPacket};
-use satrs_core::tmtc::{AddressableId, TargetId};
-use satrs_example::{hk_err, tmtc_err};
+use satrs_example::{hk_err, tmtc_err, TargetIdWithApid};
 use std::collections::HashMap;
 use std::sync::mpsc::Sender;
 
 pub struct PusService3HkHandler {
     psb: PusServiceBase,
-    request_handlers: HashMap<TargetId, Sender<RequestWithToken>>,
+    request_handlers: HashMap<TargetIdWithApid, Sender<RequestWithToken>>,
 }
 
 impl PusService3HkHandler {
@@ -28,7 +27,7 @@ impl PusService3HkHandler {
         tm_sender: Box<dyn EcssTmSender>,
         tm_apid: u16,
         verification_handler: StdVerifReporterWithSender,
-        request_handlers: HashMap<TargetId, Sender<RequestWithToken>>,
+        request_handlers: HashMap<TargetIdWithApid, Sender<RequestWithToken>>,
     ) -> Self {
         Self {
             psb: PusServiceBase::new(
@@ -90,11 +89,9 @@ impl PusServiceHandler for PusService3HkHandler {
                 "Expected at least 8 bytes of app data".into(),
             ));
         }
-        let addressable_id = AddressableId::from_raw_be(user_data).unwrap();
-        if !self
-            .request_handlers
-            .contains_key(&addressable_id.target_id)
-        {
+        let target_id = TargetIdWithApid::from_tc(&tc).expect("invalid tc format");
+        let unique_id = u32::from_be_bytes(tc.user_data()[0..4].try_into().unwrap());
+        if !self.request_handlers.contains_key(&target_id) {
             self.psb
                 .verification_handler
                 .borrow_mut()
@@ -103,35 +100,22 @@ impl PusServiceHandler for PusService3HkHandler {
                     FailParams::new(Some(&time_stamp), &hk_err::UNKNOWN_TARGET_ID, None),
                 )
                 .expect("Sending start failure TM failed");
-            let tgt_id = addressable_id.target_id;
             return Err(PusPacketHandlingError::NotEnoughAppData(format!(
-                "Unknown target ID {tgt_id}"
+                "Unknown target ID {target_id}"
             )));
         }
-        let send_request = |target: TargetId, request: HkRequest| {
-            let sender = self
-                .request_handlers
-                .get(&addressable_id.target_id)
-                .unwrap();
+        let send_request = |target: TargetIdWithApid, request: HkRequest| {
+            let sender = self.request_handlers.get(&target).unwrap();
             sender
                 .send(RequestWithToken::new(target, Request::Hk(request), token))
                 .unwrap_or_else(|_| panic!("Sending HK request {request:?} failed"));
         };
         if subservice == hk::Subservice::TcEnableHkGeneration as u8 {
-            send_request(
-                addressable_id.target_id,
-                HkRequest::Enable(addressable_id.unique_id),
-            );
+            send_request(target_id, HkRequest::Enable(unique_id));
         } else if subservice == hk::Subservice::TcDisableHkGeneration as u8 {
-            send_request(
-                addressable_id.target_id,
-                HkRequest::Disable(addressable_id.unique_id),
-            );
+            send_request(target_id, HkRequest::Disable(unique_id));
         } else if subservice == hk::Subservice::TcGenerateOneShotHk as u8 {
-            send_request(
-                addressable_id.target_id,
-                HkRequest::OneShot(addressable_id.unique_id),
-            );
+            send_request(target_id, HkRequest::OneShot(unique_id));
         } else if subservice == hk::Subservice::TcModifyHkCollectionInterval as u8 {
             if user_data.len() < 12 {
                 self.psb
@@ -151,9 +135,9 @@ impl PusServiceHandler for PusService3HkHandler {
                 ));
             }
             send_request(
-                addressable_id.target_id,
+                target_id,
                 HkRequest::ModifyCollectionInterval(
-                    addressable_id.unique_id,
+                    unique_id,
                     CollectionIntervalFactor::from_be_bytes(user_data[8..12].try_into().unwrap()),
                 ),
             );
diff --git a/satrs-example/src/requests.rs b/satrs-example/src/requests.rs
index 5fa2549..bcae8d7 100644
--- a/satrs-example/src/requests.rs
+++ b/satrs-example/src/requests.rs
@@ -1,7 +1,8 @@
+use derive_new::new;
 use satrs_core::hk::HkRequest;
 use satrs_core::mode::ModeRequest;
 use satrs_core::pus::verification::{TcStateAccepted, VerificationToken};
-use satrs_core::tmtc::TargetId;
+use satrs_example::TargetIdWithApid;
 
 #[allow(dead_code)]
 #[derive(Clone, Eq, PartialEq, Debug)]
@@ -19,18 +20,12 @@ pub enum Request {
     Action(ActionRequest),
 }
 
-#[derive(Clone, Eq, PartialEq, Debug)]
+#[derive(Clone, Eq, PartialEq, Debug, new)]
 pub struct TargetedRequest {
-    pub(crate) target_id: TargetId,
+    pub(crate) target_id: TargetIdWithApid,
     pub(crate) request: Request,
 }
 
-impl TargetedRequest {
-    pub fn new(target_id: TargetId, request: Request) -> Self {
-        Self { target_id, request }
-    }
-}
-
 #[derive(Clone, Eq, PartialEq, Debug)]
 pub struct RequestWithToken {
     pub(crate) targeted_request: TargetedRequest,
@@ -39,7 +34,7 @@ pub struct RequestWithToken {
 
 impl RequestWithToken {
     pub fn new(
-        target_id: u32,
+        target_id: TargetIdWithApid,
         request: Request,
         token: VerificationToken<TcStateAccepted>,
     ) -> Self {